Dry preparations
Abstract
Die vorliegende Erfindung betrifft Trockenpräparate, die sich dadurch auszeichnen, daß sie > 70 Gew,% eines oder mehrerer Effektpigmente, ≤ 5 Gew. % Restfeuchte und ≥ 0,5 eines styrolmodifizierten Maleinatharzes mit einer Säurezahl > 90 mg/KOH enthalten, sowie deren Verwendung in Farben, Lacken, Druckfarben, Kunststoffen, Automobillacken und Pulverlacken.
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14 claims: 12 independent, 2 dependent
- 1Trockenpräparate, dadurch gekennzeichnet, dass sie > 70 Gew.% eines oder mehrerer Perlglanzpigmente und/oder ein oder mehrerer mit ein oder mehreren Metalloxiden beschichtete Glas- oder TiO 2 -Plättchen, ≥ 0,5 Gew.% eines styrolmodifizierten Maleinatharzes mit einer Säurezahl von > 90 mg KOH/g, ≤ 5 Gew.% Restfeuchte in Form von Wasser und/oder eines organischen Lösemittels oder Lösemittelgemisches, 0 - 10 Gew.% Neutralisationsmittel und 0 - 10 Gew.% Modifiziermittels enthalten.
- 2Trockenpräparate nach Anspruch 1, dadurch gekennzeichnet, dass das Perlglanzpigment ein TiO 2 /Glimmer- oder Fe 2 O 3 -Glimmerpigment ist.
- 3Trockenpräparate nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das SiO 2 -Plättchen mit TiO 2 und/oder Fe 2 O 3 beschichtet ist.
- 4Trockenpräparate nach einem oder mehreren der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass das Maleinatharz α-Methylstyrolmodifiziert ist.
- 5Trockenpräparate nach einem oder mehreren der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass das Maleinatharz ein Styrol-Maleinsäureanhydrid-Verhältnis von 1 :1 bis 4 : 1 aufweist.
- 6Trockenpräparate nach einem oder mehreren der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass das Maleinatharz ein mittleres Molekulargewicht von 500 bis 200000 hat.
- 7Trockenpräparate nach einem oder mehreren der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass das Maleinatharz ein mittleres Molekulargewicht von 1000 bis 100000 hat.
- 8Trockenpräparate nach einem oder mehreren der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass das Maleinatharz ein mittleres Molekulargewicht von 1000 bis 50000 hat.
- 9Trockenpräparate nach einem oder mehreren der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass die Trockenpräparate als zusätzliche Komponenten organische und/oder anorganische Pigmente, Entschäumer, oberflächenaktive Substanzen, Netzmittel, Antiabsetzmittel, Verlaufsmittel, Sikkative und/oder Thixotropiermittel enthalten.
- 10Trockenpräparate nach einem oder mehreren der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass das Neutralisationsmittel ausgewählt ist aus der Gruppe Harnstoff, Harnstoffderivate, Ammoniak, Aminoalkohole, Alkalihydroxide, Amine.
- 11Trockenpräparate nach einem oder mehreren der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass sie als Chips, Pellets, Briketts oder Granulate vorliegen.
- 12Trockenpräparate nach einem oder mehreren der Ansprüche 1 bis 11, dadurch gekennzeichnet, dass die Granulate in Kugelform vorliegen.
- 13Trockenpräparate nach einem oder mehreren der Ansprüche 1 bis 12, dadurch gekennzeichnet, dass sie Teilchchengrößen im Bereich von 0,1 bis 150 mm aufweisen.
- 14Verwendung der Trockenpräparate nach einem oder mehreren der Ansprüche 1 bis 13 in Farben, Lacken, Druckfarben, Kunststoffen, Automobillacken und Pulverlacken.
Independent claims14
75 paragraphs, as filed
p0001The invention relates to dry preparations, such as granules or chips, which are characterized in that it contains of> 70.% Of one or more effect pigments, ≤ 5 wt.% Residual moisture and ≥ 0.5 wt.% Of a styrene-modified maleate resin having an acid number> 90 mg / KOH contain, and their use in paints, coatings, printing inks, plastics, automobile paints and powder coatings.
p0002In industrial processes, pigments are often used as a dry powder, as these produce dust, which leads to increased requirements with regard to job security. Further agglomeration of the pigment powder is, when introducing powders into plastics, printing inks, industrial coatings, basecoat systems, etc., often observed. A homogeneous distribution of the pigment in the respective matrix is frequently difficult if not impossible to achieve.
p0003Instead of the pigment powder, non-dusting pigment formulations or dry preparations are used. This is<ul><li>free-flowing powder, pearl luster pigments coated with polymers, as in, for example, the <patcit id="pcit0001" dnum="DE2603211C"><text>DE-C-2603211</text></patcit> are described,</li><li>pigmented pourable powder with a low moisture content, as obtained from, for example, the <patcit id="pcit0002" dnum="DE4139993A"><text>DE-A-4139993</text></patcit> are known,</li><li>pigmented powder having a higher moisture content, the latter being often referred to as due to their flowable consistency pastes,</li><li>Pigment preparations in granule form, in which organic pigments are coated with a resin mixture, such as in the <patcit id="pcit0003" dnum="EP0897956A2"><text>EP 0897956 A2</text></patcit> disclosed, or</li><li>Dry preparations, such as pellets, granules as precursors for printing inks, such as those from the <patcit id="pcit0004" dnum="EP0803552A"><text>EP 0803552</text></patcit> are known.</li></ul>
p0004Non-dusting, homogeneous pigment preparations and dry preparations produced from are a technical alternative to the dry or moistened powders provided they meet the following conditions:<ul><li>flowable consistency</li><li>lowest possible dilatancy</li><li>highest possible pigment content</li></ul>
p0005The components of the preparation / paste or the dry preparations should be chosen such that the composition is as well matched to the other components of the respective coating system and is readily homogeneously distributed following its introduction.
p0006In addition to good compatibility with the other components of the coating system to pigment preparations, or cause the dry preparations produced therefrom to the coating systems have a high stability, ie, they must not tend to undergo phase separation, or, where this is not due to the low viscosity is to completely prevent the coating systems must be easy to be put into a homogeneous state again, that is, the settled sediment must be readily reagitate. This requirement is particularly important in platelet-shaped pigments, since these tend to base their structure on phase separation "caking" and difficulties can be stirred up again. Pigments based on platelet-shaped substrates are problematic to handle, as the pigments can be due to their size and density, they readily settle and then cake together to form a very firm sediment cake. This cake is very difficult reagitate. This is especially true in the storage of varnishes, paints and printing inks, as well as their processing.
p0007Among other things, numerous methods have been developed to address the problem of the incorporation and handling of platelet-shaped pigments in coating compositions to solve. Reagitation can be facilitated by the coating compositions of additives are added which bring about either a selective flocculation (house of cards effect), pseudoplastic and / or thixotropic behavior, or steric and / or electrostatic repulsion of the pigments. However, these additives may have a negative influence on the quality of the coating. In particular, the brilliance with effect pigments and the uniformity of the coating may be impaired.
p0008In addition, homogeneous, stable distribution of redispersants in pearlescent pigment powder is difficult to achieve and the redispersants loses during mixing of activity.
p0009The previously developed for use in coating systems preparations with effect pigments having a pigment content> 30 wt.% Meet the requirements described frequently inadequate, particularly since they have a tendency towards agglomeration and shear thickening.
p0010The object of the present invention was to provide pigment preparations, in particular in the form of preparations or pastes and dry preparations; which can very well be used in aqueous, solvent-based and solvent-free printing ink and coating systems simultaneously, have high stability, easy to redisperse, and are characterized simultaneously by a high compatibility with the other components of the coating system. Furthermore, the pigment preparation of the invention is to be well suited for the production of dry preparations, such as in the form of pellets, granules, etc.,.
p0011Surprisingly, it has been found that this object can be achieved by the provision of the pigment preparation according to the invention. Styrene-modified maleate show in combination with effect pigments, such as pearlescent pigments, universal compatibility in aqueous, solvent-based and solvent-free printing ink and coating systems. Furthermore, the formation of the interference effect is positively influenced with pearlescent pigments.
p0012The invention thus a dry preparations, the<tables id="tabl0001" num="0001"><table frame="none"><tgroup cols="2" colsep="0" rowsep="0"><colspec colnum="1" colname="col1" colwidth="23mm" /><colspec colnum="2" colname="col2" colwidth="143mm" /><tbody><row><entry>> 70 wt.%</entry><entry>one or more effect pigments,</entry></row><row><entry>≥ 0.5 wt.%</entry><entry>a styrene-modified maleate resin having an acid number> 90 mg / KOH,</entry></row><row><entry>≤ 5 wt.%</entry><entry>Residual moisture in the form of water and / or an organic solvent or solvent mixture,</entry></row><row><entry>0 - 10 wt%.</entry><entry>Neutralizing agents and</entry></row><row><entry>0 - 10 wt%.</entry><entry>modifier</entry></row></tbody></tgroup></table></tables>contain.
p0013The preparation of the invention is dependent on the moisture content of a flowable paste or a moistened, flowable powder. Both are highly suitable for producing dry preparations, such as granules, pellets, briquettes, suitable. Especially in the production of non-dusting pigment granules, by the use of styrene-modified Maleinnatharzen better compounding with the polymer resins as known from the prior art, as for example from<patcit id="pcit0005" dnum="EP0803558A1"><text>EP 0803558 A1</text></patcit> are known, achieved. The dry preparations produced from the pigment preparation according to the invention are likewise provided by the invention.
p0014Further products of the invention are non-dusting, free-flowing, can be incorporated rapidly into commercially available binder systems and are compatible therein. In particular, the products are both compatible with aqueous, solvent-based and solvent-free printing ink and coating systems. The paints and coatings on the dry preparation, eg granules or chips produced are suitable for gravure printing, flexographic printing, screen printing, offset overprint varnishes, overprint varnish (OPV =<u>O</u>ver<u>p</u>rint <u>V</u>Arnish), and the different coating systems from the industrial coatings and automotive sectors. Also for coloring plastics come into consideration.
p0015The pigment preparation of the invention preferably contains 40-98% by weight of effect pigments, in particular 45 -. 95% by weight, based on the preparation.. Very particularly preferred are pigment preparations having a content of effect pigments of more than 50 wt.%. . The wt% - always relate to the moist, ie undried, pigment preparation.
p0016Effect pigments are pigments based on platelet-shaped, transparent or semitransparent substrates comprising, for example phyllosilicates, such as mica, synthetic mica, talc, sericite, kaolin or other silicate materials, lamellar iron oxide, SiO<sub>2</sub>Flakes, TiO<sub>2</sub>Flakes, graphite flakes, Fe<sub>2</sub>O<sub>3</sub>Flakes, Al<sub>2</sub>O<sub>3</sub>Flakes, glass flakes, holographic pigments used, the rare earth metal sulfides with such. B. Ce<sub>2</sub>S<sub>3</sub>Colored or colorless metal oxides, eg. As TiO<sub>2</sub> Suboxides, titanium oxynitrides, Fe<sub>2</sub>O<sub>3</sub>, Fe<sub>3</sub>O<sub>4</sub>, SnO<sub>2</sub>, Cr<sub>2</sub>O<sub>3</sub>, ZnO, CuO, NiO, and other metal oxides, is used alone or mixed in a single layer or in successive layers (multilayer pigments). The so-called multi-layer or multilayer pigments are eg. As known from the<patcit id="pcit0006" dnum="DE19746067"><text>German patents DE 197 46 067</text></patcit>. <patcit id="pcit0007" dnum="DE19707805"><text>DE 197 07 805</text></patcit>. <patcit id="pcit0008" dnum="DE19707806"><text>DE 197 07 806</text></patcit> and <patcit id="pcit0009" dnum="DE19638708"><text>DE 196 38 708</text></patcit>, Pearlescent pigments based on mica flakes are, for example from the German Patents and Patent Applications 14 67 468, 19 59 998 20 09 566 22 14 454 22 15 191, 22 44 298 23 13 331 25 22 572 31 37 808 31 37 809, 31 51 343 31 51 354 31 51 355 32 11 602 32 35 017 and P 38 42 330 and are commercially available, eg under the brands Minatec<sup>®</sup> and Iriodin® the Fa. Merck KGaA, Darmstadt, Germany.
p0017Particularly preferred pigment preparations comprise TiO<sub>2</sub>/ Mica, Fe<sub>2</sub>O<sub>3</sub>/ Mica and / or TiO<sub>2</sub>/ Fe<sub>2</sub>O<sub>3</sub>Mica pigments. The coating of SiO<sub>2</sub>can platelets for. example, as described in the <patcit id="pcit0010" dnum="WO9308237A"><text>WO 93/08237</text></patcit> (Wet-chemical coating) or <patcit id="pcit0011" dnum="DE19614637A"><text>DE-OS 196 14 637</text></patcit> (CVD) method described. Al<sub>2</sub>O<sub>3</sub>Flakes are, for example from the <patcit id="pcit0012" dnum="EP0763573A"><text>EP 0763573</text></patcit> known. Platelet-shaped substrates coated with one or more rare earth metal sulfides, are such. B.<patcit id="pcit0013" dnum="DE19810317"><text>DE 198 10 317</text></patcit> disclosed.
p0018Also suitable are metallic effect pigments, especially for aqueous systems modified aluminum flakes as of the Fa. Eckart under the brand Aqua Rotovario<sup>®</sup> or Stapa Hydroxal sold for aqueous applications, as well Variocrom<sup>®</sup> and Paliocrom®<sup>®</sup>Pigments of the Fa. BASF in particular those from the published patent applications <patcit id="pcit0014" dnum="EP0681009A"><text>EP 0681009</text></patcit>. <patcit id="pcit0015" dnum="EP0632110A"><text>EP 0632110</text></patcit>. <patcit id="pcit0016" dnum="EP0634458A"><text>EP 0634458</text></patcit>And LCP-pigments (liquid crystal polymers). Also suitable are also all known to those skilled flaky pigments which have metal layers. Such pigments are sold by the company. Flex, Fa. BASF, the Fa. Eckart and the Fa. Schlenk.
p0019The pigment preparations according to the invention may contain one or more effect pigments. In many cases, special color and gloss effects can be achieved by using at least two different effect pigments. Preferred pigment preparations comprise one or more effect pigments based on mica and / or SiO<sub>2</sub> Flakes. Furthermore, mixtures with organic and inorganic pigments are up to 10 wt%., Based on the pigment preparation possible.
p0020In particular, the addition of one or more dyes and / or organic pigments, such as lead Mikrolith (Fa. Ciba) or Hydrocolor- / Solcolorpräparationen the Fa. MK Chemical, in ground form to special color effects. Furthermore, such substances and particles (tracer) may be added, which allow product identification (product protection).
p0021As a mandatory component, the pigment preparation of the invention contains a styrene-modified maleate resin having an acid number> 90 mg / KOH in amounts from 0.5 to 59.5 wt.%, Preferably 5 to 40 wt.%, In particular 10 to 30 wt.%. Particularly preferred are styrene-modified maleate resins having an acid number of> 100, in particular> 150.
p0022The styrene-modified maleate resins used have an average molecular weight of 500 to 200,000, preferably from 1,000 to 100,000, in particular from 1000 to 50000. Especially preferred are styrene-modified maleate resins with a molecular weight of 2500-3500. With otherwise identical properties, the polymers having a low molecular weight are preferred, as these generally exhibit a lower thickening effect in the coating systems.
p0023The styrene-modified maleate resins are produced by radical polymerization, in particular co- or terpolymerization with saturated and unsaturated alcohols and further functionalization can be incorporated into broad mass ratios. In particular, polyethylene and polypropylene units, or mixtures of alkylene oxides may be incorporated into the polymer backbone, as well as alkylene oxide esters, amines, ethers, and free carboxyl groups. This incorporation is especially of great advantage to the compatibility of the products of this invention in aqueous systems. The styrene-modified maleate resins preferably have a styrene-maleic anhydride ratio of 1: 1 to 4: 1. The styrene-modified maleate resins thus produced are characterized by their resistance to light (yellowing resistance) to oxygen (shelf life), against spontaneous combustion and by low static charge.
p0024Particularly suitable are a-methyl styrene-modified maleate. Preferably, such resins are used according to the invention which have a glass transition temperature above room temperature. In order for a blocking and lack of flowability of the dry preparation is excluded. Thus, preferably the maleate used have a glass transition temperature of 35-170 ° C, especially 40-80 ° C. The softening of the resins used is preferably 45-180 ° C, especially at 50 - 90 Deg C.
p0025The styrene-modified resins are also commercially available, eg. As under the brand names SMA<sup>®</sup> Fa. Elf Atochem.
p0026% Of a modifier is further advantageous if the pigment preparation of the invention 0 to 10 wt.%, Preferably 0.05 to 5 wt.%, In particular 0.01 to 3 wt. Contains. Specifically, a polyalkylene oxide or derivatives thereof is used in order to increase the strength, the compatibility and the dissolution rate of the dry preparations as a modifier. Further, as a modifier, the redispersibility enhancing resins such as rosins, urethane resins, nitrocellulose, and all known cellulose derivatives, polyester, PVC, sulfopolyester, polyethylene glycol esters and ethers, emulsifiers, surfactants are present in amounts of from 0.1 to 10 wt.%, Preferably 0.05 to suitable 5 wt.%, in particular 0.01 to 3 wt.%, based on the preparation.
p0027In particular, those materials of the pigment preparation according to the invention can be added, which accelerate or assist the breakdown and dissolution of the pigment granules, for example bulky spherical particles, such as hollow spheres, hemispheres, swellable substances with a strong swelling capacity, substances which decompose controlled evolution of gas, or such with very high solubility.
p0028The pigment preparation of the invention or dry preparations produced from preferably contain a component other than or more neutralizing agents. Particularly suitable are the usual in the paint sector bases such as urea, urea derivatives, ammonia, amino alcohols, alkali metal hydroxides, such as KOH or NaOH, amines, which is preferred in preparations for aqueous applications is non-volatile organic low molecular weight amines, or to such which only have a low volatility at 100 ° C.
p0029The acid number of the modified maleate resin in combination with the neutralizing agent causes the resins water solubility. The water is in accordance with the present invention for a important in the manufacturing process, to tread a path aqueous can, secondly, the water solubility is a prerequisite for use in aqueous and aqueous ink systems (compatibility).
p0030In general, the pigment preparation of the invention contains 0 to 10 wt.% Of a neutralization agent, preferably 1 to 7 wt.%, In particular 1 to 5 wt.%, Based on the pigment preparation.
p0031If necessary, the addition of a redispersing in the form of bulky particles, such as fibers or spherical particles, preventing the treated by the novel effect pigments to each other place due to the steric repulsion to any significant extent and thus exerting strong adhesion. This causes<ol><li>1. preparations of the invention are more stable, and</li><li>2. the effect pigments to settle by the introduction of the redispersing of the pigment preparation in the varnish or paint system in varnish and paint systems in some cases very much slower,</li></ol>but the sediment is less hard in all cases, and that no problems Reagitation of sediment occur.
p0032The redispersants is preferably used in amounts of from 0 to 5.%, Particularly from 0.05 to 3 wt.% Based on the pigment preparation. All known in the art of organic and inorganic fibers with a fiber length of 0.1-20 microns can be used. Particularly suitable particles are all synthetic fibers, for example made from polyethylene, polyacrylates, polypropylene, polyamides, cellulose fibers, inorganic fibers, preferably silicon compounds, glass fibers and especially the condensation products of modified isocyanates and mono- and diamines. These condensation products, which are diurea derivatives and aminoureas with urethane are known as thixotropic agents and are added with a binder paints and varnishes in order to improve the flow properties and spreadability.
p0033Redispersing all known to those skilled diurea derivatives and urethane compounds can be used as in the example <patcit id="pcit0017" dnum="EP0198519A"><text>EP 0198519</text></patcit>, of the <patcit id="pcit0018" dnum="DE1805693"><text>DE 18 05 693.4</text></patcit> and in <nplcit id="ncit0001" npl-type="s"><text>Organic Coatings: Science and Technology, A. Heenriga, PJG of Hemsbergen, S. 201-222, New York 1983</text></nplcit> to be discribed.
p0034Suitable materials are spherical in particular glass, wax or polymer hollow spheres made from vinyl resins, nylon, silicone, epoxy resins, olefin resins, polystyrenes, and inorganic materials such as TiO<sub>2</sub>, SiO<sub>2</sub> or ZrO<sub>2</sub>, Preferably, hollow spheres, and also solid beads, having a particle size from 0.05 to 150 microns. Hollow polymer spheres are particularly preferred in the inventive pigment preparation glass, wax or used.
p0035Spherical particles based on SiO<sub>2</sub> in a particle range of 3-10 microns, for example, are known as materials for high pressure liquid chromatography and for example, as LiChrospher<sup>®</sup> , Sold by the company. Merck KGaA, Darmstadt, Germany. Preferably, such materials are in monodisperse form, ie with a uniform particle size used. Monodisperse spherical particles based on SiO<sub>2</sub>, TiO<sub>2</sub> and ZrO<sub>2</sub>, monodisperse SiO<sub>2</sub> For example, according to the <patcit id="pcit0019" dnum="DE3616133"><text>DE 36 16 133</text></patcit> getting produced. Hollow glass beads are marketed, for example under the trade name Q-CEL by. PQ Corporation USA or Scotchlite by Messrs. 3M, Frankfurt, FRG.
p0036In addition, the pigment preparation of the invention may contain surface-active substances, such as alkylsilanes, which may also contain a further functional group, unsaturated or saturated fatty acids or fluorosurfactants. Particularly preferred silane compounds of the formula (C<sub>n</sub>H<sub>2n + 1</sub>) Si (OC<sub>m</sub>H<sub>2m + 1</sub>)<sub>3</sub>Wherein n is 1-30 and m is 1-10, are used as surface-active substances. Suitable silane compounds are, for example, n-hexyldecyltriethoxysilane and n-octyldecyltriethoxysilane (Si 116 and Si 118 from Degussa AG, Frankfurt, Germany) and the corresponding fluoroalkylsilanes.
p0037Preferably, the pigment preparation in addition to the silane additionally contains a surfactant or a fatty acid. In the surface-active reagent may also be a mixture of silane, fatty acids and / or surfactants. The pigment preparations may contain 0.1 to 5 wt%., Preferably 0.2 to 3 wt.% And in particular 0.5 to 2 wt.%, Based on surface-active substances contained in the preparation.
p0038Remote it can be used as surface-active substances are the saturated and unsaturated fatty acids such as caproic acid, caprylic acid, capric acid, lauric acid, myristic acid, palmitic acid, stearic acid, oleic acid, linoleic acid and fatty acid mixtures.
p0039The pigment preparation of the invention contains 0.5 to 50 wt.% Of water and / or an organic solvent or solvent mixture, preferably 1 to 45 wt.%, Particularly 1 to 40 wt.%, Based on the preparation.
p0040The solvent component in the pigment preparation of the invention must be tuned properly to the resin having an acid number> 90 mg / KOH. In the production of water and all organic solvents may be used depending on the polyacrylate resin. Suitable solvents are, for. Example, aromatic solvents such as toluenes, benzenes, xylenes, hydrocarbons, and esters, cyclohexane, furans, dioxanes, chlorinated hydrocarbons, long-chain amines, vegetable oils, monohydric aliphatic alcohols such as those having 2 to 4 carbon atoms, for example ethanol, butanol, or isopropanol, or ketones, for example acetone or methyl ethyl ketone, or glycol ethers such as propylene glycol monomethyl ether, propylene glycol monoethyl ether or diols such as ethylene glycol and propylene glycol, or polyether diols, aliphatic triols and tetrols with 2 to 6 carbon atoms, such as trimethylolethane, trimethylolpropane, glycerol, 1,2,4 butanetriol, 1,2,6-hexanetriol and pentaerythritol, as well as all other solvents from other classes of compounds or mixtures of the abovementioned solvents. Preferably, such solvents are used, which are listed in Karsten, Lackrohstofftabellen, 9th edition 1992.
p0041The production of the pigment preparation of the invention is simple in that, simultaneously or sequentially added to the effect pigment or effect pigment mixture, the modified maleic resin, optionally water and / or an organic solvent or solvent mixture, a modifier and optionally further additives, and that this mixture in a mixer to gentle homogenization.
p0042Preferably, the pigment is presented first and with stirring, with the water or the organic solvent or solvent mixture containing the maleic resin and optionally the modifying agent already made into a paste; then the addition of a further solution optionally comprising water or solvent and additives.
p0043The pigment preparation of the invention can be added during or after the preparation of further customary additives such as defoamers, wetting agents, antisettling agents, leveling agents, drying agents or thixotropic agents. It is in the coatings industry customary excipients used in the pigment preparation of the invention in an amount from 0 to 10.% May be present. In particular, here called succinate derivatives, for example those as marketed by the company. Henkel branded Hydropalat 875th
p0044In the invention obtained moist pigment preparation is a homogeneous powder or readily flowable pastes with a relatively high content of effect pigments. Due to the particularly high compatibility of styrene-modified maleate resin, the pigment preparation according to the invention is likewise thoroughly compatible with commercially available aqueous, solvent-based and solvent-free printing ink systems. Furthermore, the preparation is characterized by its freedom from dust, ready dispersibility and redispersibility, making conventional pigment preparations clearly superior.
p0045To produce dry preparations, the pigment preparation according to the invention is extruded or compressed to others known to those skilled paths in a compact particulate form, eg., By tabletting, briquetting, pelletizing, granulating, spray, fluidized-bed or extrusion, and then optionally dried. The drying process generally takes place at temperatures from 20 ° C to 150 ° C instead of, preferably at 60 to 120 ° C, and can be carried out, if necessary under reduced pressure. The dry preparations, such as chips, pellets, briquettes or granules have a residual moisture content of max. 5 wt.%, Preferably <3 wt.%, On. The granules have pigment contents of> 70 wt.%, Preferably> 80 wt.%, Based on the granules. Recently, the dry preparation is classified if desired. The dried granules obtained are compared with the water- or solvent-based preparations even higher positive properties: Increase the missing liquid components compatibility. Dry granules showed surprisingly also no disadvantages in the wetting. On the contrary, when added to an aqueous binder or a binder based on polar solvent (ethanol, ethyl acetate, MEK, etc.) occurs faster disintegration of the granules and immediate complete wetting. Further advantages of a dry formulation are the improved storage stability, the easier transport and improved product safety for customers. Granules, for example, in spherical shape, are very fluid and easy to dose and have all these features a complete freedom from dust. The volume of these granules is reduced to about 1/3 of the volume of Perlglanzpigmentpulvern. The particle sizes of the dry preparations are in the range of 0.1 to 150 mm, preferably from 0.1 to 20 mm, in particular 0.1 to 2 mm.
p0046Besides the good compatibility with the coating systems as well as the synergies with the other components in the pigment preparation or the dry preparation is the high acid value of the styrene-modified maleate given the opportunity to convert the resins along with neutralizing agents in a water soluble form. The preparation of dry preparations, such as granules, chips, pellets or briquettes can thus be carried out by an aqueous route, which involves significantly higher production safety over the use of solvents with themselves.
p0047The integration of a redispersing aid ensures that pigment preparations according to the invention are easy to stir even in the finished varnish and paint systems and no further improvement by the end formulator more.
p0048The improved deagglomeration of the dry preparations incorporated into a binder, for example in a printing ink is evident even with small amounts of spherical particles in the pigment preparation. % So already with the use of granules having a content of 0.5 wt. Based on spherical particles increases on the dry preparation, the dissolution rate is markedly achieved and the stability of the ink faster (viscosity / hue).
p0049The dry preparations are non-dusting, free-flowing and can be incorporated rapidly into commercially available binder systems and are compatible therein. In particular, the products are compatible with both aqueous, solvent-based and solvent-free printing inks and coating systems.
p0050The preparation of the invention as a paste or as a dry preparation can be used for various applications. It is preferably employed in coating systems from the sectors of printing, especially overprint varnishing, offset overprint varnishing, and gravure, flexo and screen printing. Especially preferred is the preparation or the dry preparation produced therefrom as a precursor for coating compositions to any desired substrate materials, for example metals such as iron, steel, aluminum, copper, bronze, plastic, brass and metal foils, and also glass, ceramic and concrete, as well as wood, eg furniture, clay, textile, paper, packaging materials, for example plastic containers, films or boards, or applied to other materials for decorative and / or protective purposes.
p0051The invention also relates to the use of the pigment preparation in formulations such as paints, varnishes, printing inks and plastics, and automotive coatings, powder coatings and coating compositions of a general nature.
p0052The following examples illustrate the invention without restricting it.
Examples
example 1
p005367 g SMA<sup>®</sup>-1440 F (styrene-modified maleate Fa. Elf-Atochem) are dissolved in 590 g of demineralized water and 18 g 25% ammonia solution. After addition of 16 g of polyethylene glycol 2000 (Fa. Merck KGaA), the subsequent homogenization until a clear solution is formed.
p0054The entry in 1000 g Iriodin done<sup>®</sup> 103 (TiO<sub>2</sub>/ Mica pigment having a particle size 10-50 .mu.m from Merck KGaA).. The preparation thus prepared is granulated on a TR 01 granulating Fa. Eirich. The drying takes place at 60-120 ° C for 48 hours. Coarse grain separation takes place through a sieve having a mesh size of 2 mm. The fine fraction is separated off over a sieve with a mesh width of 0.4 mm.
p0055The granules thus prepared are abrasion resistant and compatible with the common solvent-based Haptobond F 105 waste H 75659/691 and with the solvent-containing waste rotation 50.36 Fa. SICPA.
example 2
p005667 g SMA<sup>®</sup>-1440 F (styrene-modified maleate Fa. Elf-Atochem) are dissolved in 479 g of demineralized water and 29 g of 2-amino-2-methyl-1-propanol (75% in water). After the dissolution of the resin portion, the addition of 16 g of polyethylene glycol 2000 and the subsequent homogenization until a clear solution is formed.
p0057The entry in 1000 g Paliochrom done<sup>®</sup> Gold L 2002 (effect pigment from. BASF). The preparation thus prepared is granulated on a TR 01 granulating Fa. Eirich. Drying is carried out for 72 hours at 60-120 ° C. Coarse grain separation takes place through a sieve with the top aperture of 2 mm. The fine fraction is separated off over a sieve with a mesh width of 0.4 mm. The granules thus prepared are abrasion resistant and highly compatible with the common aqueous offset overprint varnish 350081 from Weilburger Lackfabrik.
example 3
p005867 g SMA<sup>®</sup>-1440 F Fa. Elf Atochem are dissolved in 590 g of demineralized water and 29 g of 2-amino-2-methyl-1-propanol (75% in water). After the dissolution of the resin proportion metering takes place from 16 g Hydropalat 875 (Na salt of sulfosuccinic the Fa. Henkel) and the subsequent homogenization-tion arises until a clear solution.
p0059The entry in 1000 g Iriodin done<sup>®</sup> 103 (pearlescent pigment of the Fa. Merck KGaA). The preparation thus prepared is on a TR 01 granulating Fa. Eirich, granulated. The drying takes place at 60-120 ° C for 48 hours. Coarse grain separation takes place through a sieve with the top aperture of 2 mm. The fine fraction is separated off over a sieve with a mesh width of 0.4 mm. The granules thus prepared are abrasion resistant and highly compatible with the common aqueous offset overprint varnish 350081 from Weilburger Lackfabrik.
example 4
p006067 g SMA<sup>®</sup>-1440 F Fa. Elf Atochem are dissolved in 590 g of demineralized water and 29 g of 2-amino-2-methyl-1-propanol (75% in water). After the dissolution of the resin proportion the addition of 16 g of polyethylene glycol 2000 and the subsequent homogenization until a clear solution is formed.
p0061The entry in 1000 g Iriodin done<sup>®</sup> 103 (pearlescent pigment of the Fa. Merck KGaA). In the resulting Anteigung 17 g of aqueous pigment preparation Hydrocolor Yellow, Cl PY 83, Fa. MK Chemicals are incorporated. The drying takes place at 60-120 ° C for 48 hours in a drying cabinet. This gives a yellowish Perlglanzpigmentpräparation with interesting coloristic properties. The preparation thus prepared is on a TR 01 granulating Fa. Eirich, granulated. Coarse grain separation via sieve with the top aperture of 2 mm. The fine fraction is separated off over a sieve with a mesh width of 0.4 mm. The granules thus prepared are abrasion resistant and highly compatible with the common aqueous offset overprint varnish 350081 from Weilburger Lackfabrik.
example 5
p006267 g SMA<sup>®</sup>-1440 F Fa. Elf Atochem are dissolved in 590 g of demineralized water and 29 g of 2-amino-2-methyl-1-propanol (75% in water). After the dissolution of the resin proportion the addition of 16 g of polyethylene glycol 2000 and the subsequent homogenization until a clear solution is formed.
p0063The entry in 1000 g Iriodin done<sup>®</sup> 103. In the resulting Anteigung 17 g of aqueous pigment preparation Hydrocolor Red, Cl PR 146, Fa. MK Chemicals are incorporated. The drying takes place at 60-120 ° C for 48 hours in a drying cabinet. This gives a reddish Perlglanzpigmentpräparation with interesting coloristic properties. The preparation thus prepared is on a TR 01 granulating Fa. Eirich, granulated. The coarse particle separation takes place through a sieve with the top aperture of 2 mm. The fine fraction is separated off over a sieve with a mesh width of 0.4 mm. The granules thus prepared are abrasion resistant and highly compatible with the common aqueous offset overprint varnish 350081 from Weilburger Lackfabrik.
example 6
p006467 g SMA<sup>®</sup>. -1440 F from Elf Atochem are in 590 g of demineralized water and 29 g of 2-amino-2-methyl-1-propanol; 75% solution in water. After the dissolution of the resin portion, the addition of 16 g of polyethylene glycol 2000 and the subsequent homogenization until a clear solution is formed.
p0065Then carefully record in 1000 g Iriodin done<sup>®</sup> 103. In the resulting Anteigung 17 g solventborne pigment preparation Solcolor Blue, Cl PB 15: 3 incorporated, the company MK Chemicals.. The preparation thus prepared is on a TR 01 granulating Fa. Eirich, granulated. The drying takes place at 60-120 ° C for 48 hours in a drying cabinet. The result is a bluish pearl luster with interesting coloristic properties. Coarse grain separation via sieve with the top aperture of 2 mm. The fine fraction is separated off over a sieve with a mesh width of 0.4 mm. The granules thus prepared are abrasion resistant and highly compatible with the common aqueous offset overprint varnish 350081 from Weilburger Lackfabrik.
example 7
p006667 g SMA<sup>®</sup>-1440 F Fa. Elf Atochem are dissolved in 590 g of demineralized water and 29 g of 2-amino-2-methyl-1-propanol (75% in water). After the dissolution of the resin proportion the addition of 16 g of polyethylene glycol 2000 and the subsequent homogenization until a clear solution is formed.
p0067In the next step of careful post in 1000 g Iriodin done<sup>®</sup>, 17 g are incorporated solventborne pigment preparation Solcolor Green Fa. MK Chemicals In the resulting Anteigung. The preparation thus prepared is granulated on a TR 01 granulating Fa. Eirich. The drying takes place at 60-120 ° C for 48 hours in a drying cabinet. The result is a greenish pearl luster with interesting coloristic properties. Coarse grain separation takes place through a sieve with the top aperture of 2 mm. The fine fraction is separated off over a sieve with a mesh width of 0.4 mm. The granules thus prepared are abrasion resistant and highly compatible with the common aqueous offset overprint varnish 350081 from Weilburger Lackfabrik.
Every citation, both ways
| Document | Relation | Office | Cited during |
|---|---|---|---|
| EP0198519A1 | Cites | European Patent Office (EPO) | Applicant |
| EP0632110A1 | Cites | European Patent Office (EPO) | Applicant |
| EP0634458A1 | Cites | European Patent Office (EPO) | Applicant |
| EP0681009A2 | Cites | European Patent Office (EPO) | Applicant |
| EP0763573A2 | Cites | European Patent Office (EPO) | Applicant |
| EP0803552A1 | Cites | European Patent Office (EPO) | Search report |
| EP0803552A1 | Cites | European Patent Office (EPO) | Applicant |
| EP0803558A2 | Cites | European Patent Office (EPO) | Applicant |
| EP0889102A2 | Cites | European Patent Office (EPO) | Search report |
| EP0897956A2 | Cites | European Patent Office (EPO) | Applicant |
| DE1805693A1 | Cites | Germany | Applicant |
| DE19614637A1 | Cites | Germany | Applicant |
| DE19638708A1 | Cites | Germany | Applicant |
| DE19707805A1 | Cites | Germany | Applicant |
| DE19707806A1 | Cites | Germany | Applicant |
| DE19708167A1 | Cites | Germany | Search report |
| DE19746067A1 | Cites | Germany | Applicant |
| DE19810317A1 | Cites | Germany | Applicant |
| DE2603211A1 | Cites | Germany | Applicant |
| DE3616133A1 | Cites | Germany | Applicant |
| DE4139993A1 | Cites | Germany | Applicant |
| WO9308237A1 | Cites | World Intellectual Property Organization (WIPO) | Applicant |
| A. HEENRIGA; P.J.G. VON HEMSBERGEN, ORGANIC COATINGS: SCIENCE AND TECHNOLOGY, 1983, pages 201 - 222 | Non-patent | – | Applicant |
19 members in 12 offices
Priority claims3
| Document | Office | Kind | Date |
|---|---|---|---|
| 19947175 | Germany | – | |
| 19947175 | Germany | A | |
| 00967706 | European Patent Office (EPO) | A |
Members19
| Document | Office | Kind | |
|---|---|---|---|
| DE19947175A1 | Germany | A1 | |
| CA2386152A1 | Canada | A1 | |
| WO0125351A1 | World Intellectual Property Organization (WIPO) | A1 | |
| CZ20021069A3 | Czechia | A3 | |
| TW491885B | Taiwan Province of China | B | |
| KR20020048423A | Republic of Korea | A | |
| BR0014665A | Brazil | A | |
| BR0014665A | Brazil | A | |
| EP1246877A1 | European Patent Office (EPO) | A1 | |
| CN1377391A | China | A | |
| JP2003527461A | Japan | A | |
| US6638353B1 | United States of America | B1 | |
| CN1175065C | China | C | |
| EP1246877B1 | European Patent Office (EPO) | B1 | |
| AT426006T | Austria | T | |
| ATE426006T1 | Austria | T1 | |
| DE50015601D1 | Germany | D1 | |
| EP2065451A2This record | European Patent Office (EPO) | A2 | |
| EP2065451A3 | European Patent Office (EPO) | A3 |
15 legal events, as the office reported them to INPADOC
Over the term
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| Application deemed to be withdrawnWithdrawn18D | 18D | |
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| Designation fees paidAKX | AKX | |
| First examination report despatched17Q | 17Q | |
| Designated contracting statesAK | AK | |
| Request for extension of the european patentAX | AX | |
| Information provided on ipc code assigned before grantRIC1 | RIC1 | |
| Information provided on ipc code assigned before grantRIC1 | RIC1 | |
| Information provided on ipc code assigned before grantRIC1 | RIC1 | |
| Request for examination filed17P | 17P | |
| Divisional application: reference to earlier applicationAC | AC | |
| Designated contracting statesAK | AK | |
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Numbers
- Publication
- 2065451
- Application
- 90038233
Titles3
- German
- Trockenpräparate
- English
- Dry preparations
- French
- Préparations sèches
Classification
- CPC, 5
- C08K9/02
- C09D17/004
- C09D5/36
- C09D11/037
- C08L51/06
- IPC, 6
- C09D17 00
- C08K9 02
- C09D5 36
- C09D7 12
- C09D11 037
- C09D135 00
Designated states25
- Contracting states, 19
- Austria
- Belgium
- Switzerland
- Cyprus
- Germany
- Denmark
- Spain
- Finland
- France
- United Kingdom
- Greece
- Ireland
- Italy
- Liechtenstein
- Luxembourg
- Monaco
- Netherlands (Kingdom of the)
- Portugal
- Sweden
- Extension states, 6
- Albania
- Lithuania
- Latvia
- North Macedonia
- Romania
- Slovenia