Packaging system for chemicals safety storage
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31 claims: 18 independent, 13 dependent
- 1formě gelu. vá z vaku nebo váčku rozpustného nebo dispergovatelného ve vodě uzavírajícího gel obsahující chemickou sloučeninu.
- 2Obalový systém podle nároku 1, vyznačuj ící se t í m , že chemickou sloučeninou je pesticid nebo prostředek pro ochranu rostlin.
- 3Obalový systém podle nároku 1 nebo 2, vyznačující se tím, že chemickou sloučeninou je agrochemikálie,
- 4Obalový systém podle nároku 1 až 3, vyznačující se tím, že chemickou sloučeninou je látka toxická nebo nebezpečné pro životní prostředí nebo pro osoby, které s ní zacházejí.
- 5Obalový systém podle nároku 1 až 4, vyznačující se tím, že gel má viskozitu 500 až 50000 mPa s.
- 6Obalový systém podle nároku 5, vyznačuj ící se t í m , že gel má viskozitu 1000 až 30000, s výhodou 1000 až 5000 mPa s.
- 7Obalový systém podle nároku 1 až 6, vyznačující se tím, že gelem je materiál mající fázový rozdíl mezi řízenou pevností ve smyku a resultující smykovou deformací daný tg/^ / menším nebo rovným 1,5
- 8Obalový systém podle nároku 7, vyznačující se t í m , že gelem je materiál mající fázový rozdíl ý mezi řízenou pevností ve smyku a resultující smykovou deformací daný tg/ý? / menším nebo rovným 1,2.
- 9Obalový systém podle nároku 1 až 8, vyznačující se tím, že se gel v podstatě dokonale disper- 20 guje ve vodě za míchání v průběhu nejvýše 15 minut s výhodou méně než 10 minut.
- 10Obalový systém podle nároku 1 až 9, vyznačující se tím, že gel, obsažený v sáčku, má spontaneitu menší než 75 a s výhodou menší než 25»
- 11Obalový systém podle nároku 1 až 10, vyznačující se tím, že gelem je hmota vizuálně posuzovatelná jako fysikální fáze.
- 12Obalový systém podle nároku 1 až 11, vyznačující se tím, že gel má specifickou hmotnost vyšší než 1, s výhodou vyšší než 1,1.
- 13Obalový systém podle nároku 1 až 12, vyznačující se tím, že gel obsahuje chemickou sloučeninu a neiontové povrchově aktivní činidlo.
- 14Obalový systém podle nároku 13, vyznačuj ící se t í m , že povrchově aktivním činidlem je neiontový emulgátor.
- 15Obalový systém podle nároku 14, vyznačuj ící se t í m , že neiontovým emulgátorem je sulfonát.
- 16Obalový systém podle nároku 1 až 15, vyznačující se tím, že gel obsahuje hmotnostně méně než 5 % vody.
- 17Obalový systém podle nároku 1 až 16, vyznačující se tím, že gel obsahuje chemickou sloučeninu, a jednu nebo několik složek volených ze souboru zahrnujícího povrchově aktivní Činidlo, dispergant, zahušíovadlo, rozpoušr tědlo a gelovací činidlo.
- 18Obalový systém podle nároku 1 až 17, vyznačující se tím, že vak nebo váček má kapacitu 0,001 až 12 litrů, s výhodou 0,2 až 12 litrů a především 0,45 až 6 litrů. • i·. »'/'.·' ? ·. 7.'-,.'·.’ , v Z. '.’λ'Λ\·\'. ..'.'.'όΛίΓν?’··’ , -•’χ'ί'ζ.'ν'· '·_ .? .''· - 21
- 19Obalový systém podle nároku 1 až 18, vyznačující se tím, že váček je vyplněn objemově více než z 60 své kapacity, s výhodou více než ze 70 % své kapacity,
- 2020* Obalový systém podle nároku 19, vyznačuj ící s e tím , že váček je naplněn objemově z 80 až 99 % a především z 85 až 95 své kapacity.
- 21Obalový systém podle nároku 1 až 20, vyznačující se tím, že váček je tvořen polymerním, ve vodě rozpustným filmem,
- 22Obalový syytém podle nároku 1 až 21,vyznačující se tím, že váček je tvořen filmem, jehož tloušťka je 10 až 500 mikrometrů, s výhodou 20 až 100 mikrometrů.
- 23Obalový systém podle nároku 21, vyznačuj ící se tím, že váček je tvořen polyethylenoxidem nebo methylcelulózou nebo polyvinylalkoholem,
- 24Obalový systém podle nároku 1 až 23, vyznačující se tím, že váček je tvořen ze 40 až 100 % alkoholyzovaného nebo hydrolyzóvaného polyvinylacetátového filmu, s výhodou z 80 až 99 a /° alkoholyzovaného nebo hydrolyzovaného polyvinylacetátového filmu.
- 25Systém spontánně uvolňující chemickou sloučeninu pro vodné prostředky, vyznačující se tím, že obsahuje ve vodě rozpustný nebo ve vodě dispergovatelný vgík nebo váček, který uzavírá gel, kterým je v podstatě organický materiál obsahující chemickou sloučeninu a jiné §ložky gelu, přičemž gel má viskozitu 1000 až 30000 mPa s, specifická hmotnost váčku a gelu ve váčku obsaženém je větší než 1 a váček i gel jsou dostatečně ve vodě dispergovatelné, takže se ve vodě za míchání dispergují v průběhu 15 minut.
- 26Systém podle nároku 25, vyznačující se t í m , že zahrnuje sloučeninu podle nároku 2 až 4 a/nebo gel podle nároku 5 aš 17 a/nebo vak nebo váček podle nároku 18 aŽ 24.
- 27Systém podle nároku 25, vyznačující se ;tím, že chemickou sloučeninou je agrochemikálie a váček a gel se dispergují v průběhu 10 minut za míchání ve vodě a systém je použitelný v zemědělských stříkacích zařízeních.
- 28Způsob držení a zajišťování chemických sloučenin, předcházející skytu s životním prostředím při skladování a dopravě, vy z n áč.ujícísetím,že i/ se míchá při zvýšené teplotě chemická sloučenina s ostatními složkami gelu, ii/ dostatečně rozpuštěné nebo dispergované složky, jevící se v podstatě jako jednotná fáze se. nechávají zchladnout, iii/ vytvořený gel se plní v předem stanoveném množství do vaků nebo váčků z filmu rozpustného nebo dispergovatelné- j ho ve vodě a váčky nebo vaky se těsně, uzavřou.
- 29Způsob podle nároku 28, vyznačující se tím, že chemickou sloučeninou je sloučenina podle nároku 2 až 4.
- 30Způsob podle nároku 28 nebo 29, vyznačující se t í m , že gelem je gel definovaný v nároku 5 až 17.
- 31Způsob podle nároku 28 až 30, vyznačující se t í m , že vak nebo váček je definován v nároku 18 až
Independent claims31
171 paragraphs in 4 sections, as filed
(54) Packaging system for the safe storage of chemicals (57) Packaging system for containment and storage, in particular suitable for the storage, packaging and transport of toxic products or products such as agrochemicals , consisting of a bag or an animal which is soluble or dispersible in water and contains the appropriate chemical compound in the form of a gel.
the
Packaging system for safe storage of ohmic
resources
Technical field
The invention relates to a packaging system and packaging which are particularly suitable for the storage, holding and transport of toxic and dangerous products, for example agrochemicals, such as pesticides.
BACKGROUND OF THE INVENTION
Currently, most hazardous and toxic liquids are stored in metal drums, with smaller amounts possibly being filled into plastic containers. Dangerous or toxic compounds, such as agrochemicals, are formulated into various formulations.
By toxic or dangerous compounds is meant industrial chemical or agrochemical compounds which, when leaked in the amount or concentration normally contained in storage or transport containers, can damage the environment or the persons in contact with them.
Agrochemicals are generally liquid formulations, particularly in the form of concentrates, which are most advantageous to the farmer, since they are relatively easy to handle, easy to process into formulations and easy to use. However, even with such liquid compositions, they are difficult to handle. There is a risk that they will spill or leak if a hole is formed in the packaging or if they fall. Packages have been developed which are highly resistant to both impact and fall. Such containers are safe under normal conditions of storage and handling, but there is always a great danger, for example during transport, that they will be damaged and that the liquid content will leak rapidly. Leakage of toxic and hazardous chemicals can result in major environmental damage.
Therefore, the chemical and packaging industry has long been making efforts to produce packaging that would provide a sufficient guarantee of transport and handling safety, for example in the case of farmers, and would provide adequate protection for the environment. <sup>r</sup> Wednesday. <sup>4</sup>
For example, it is known to package agrochemicals in pouches and pouches of soluble film. However, these films may rupture or tear, spilling agrochemicals. The film may have a variety of defects, which then constitute film weaknesses and become possible sources of film disruption. For example, the film may contain air bubbles, dust particles or foreign inclusions, or thin spots, all of which are potential hazards and present film weaknesses. such weaknesses are subjected to harsh treatment or physical impact and may fail in such weaknesses. This is often the case in the agrochemicals industry where packaging is subjected to repeated and uncontrolled handling by distributors, transporters and farmers.
It is also possible to formulate agrochemicals in the form of wettable powders which can be introduced into water-soluble or water-dispersible pouches, but wettable powders are increasingly used in agriculture.
Pesticide systems have also been proposed in which a liquid containing the active ingredient is enclosed in a soluble pouch or sachet. However, small holes may be formed in such pouches through which the liquid will leak and thus pose a danger to the environment.
It has also been proposed to package pesticides in soluble bags and pouches that contain an air bubble to absorb impacts and thus prevent spillage of contents. While this reduces the risk of bag and pouch breakage, it does not eliminate the problem of small holes.
It is known to use gel formulations in the pharmaceutical and cosmetics industries and in similar industries. Such gels are often used for aesthetic purposes and for reasons other than toxic and hazardous chemical storage systems.
In addition, gels are used for pharmaceutical and cosmetics. XXlz -J4: vodní.::: X »» X 4 4 V V X účely V V X X X X X X X X X X X X X X X X X X X X
SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a novel method and system for the storage and packaging of toxic and hazardous chemicals such as agrochemicals that are safe to handle. It is also an object of the present invention to provide novel systems and packages for agrochemicals that are readily, readily and rapidly soluble and / or dispersible in water, especially in less than five minutes with conventional mixing. It is also an object of the present invention to provide a system for storing and packaging chemicals, such as agrochemicals, which requires minimal space in terms of volume. It is also an object of the present invention to provide a novel packaging and system containing hazardous compounds that reduces hazardous environmental pollution.
It is also an object of the invention to prevent the leakage of bags and bags containing dangerous compounds due to the formation of small holes. One small hole in the thousands of pouches is enough to cause a lot of trouble, as the liquid, spilled through such a small hole, contaminates its entire surroundings. It is an important object of the present invention to provide packaging systems in which there is no risk of rupture. In the case of liquids in bags and pouches, this danger is somewhat reduced, but the liquid always carries the impact so that the hydraulic hammer phenomenon applies. SUMMARY OF THE INVENTION It is therefore an object of the present invention to prevent or at least substantially reduce this phenomenon of a hydraulic hammer and to develop a formulation type and packaging for hazardous chemicals that disperses as much energy as possible from the outside to the packaging and thus absorbs the impact. o Packaging systems for agrochemicals such as pesticides.
The invention is also directed to systems that contain only the minimum amount of solvent required for formulation, thereby saving costs in both transport and production. Such higher concentrations of the active ingredient are achieved in the case of gels rather than liquids.
It is an object of the present invention to provide a packaging system for agrochemicals that dissolves rapidly in water. It is also an object of the present invention to provide a new formulation system for agrochemicals that reduces the risk of clogging of spray nozzle nozzles or spray tank filters.
All the above objects are solved by the invention.
SUMMARY OF THE INVENTION
SUMMARY OF THE INVENTION The present invention provides a system for storing and providing chemical compounds which are a water-soluble or water-dispersible pouch in which a gel containing the active ingredient is enclosed.
Accordingly, the invention provides a packaging system comprising a water-soluble or water-dispersible pouch that contains, retains, and provides a chemical compound that may be a toxic or hazardous chemical; the chemical compound contained in the gel is essentially an organic material. The present invention is also directed to a packaging system that self-releases a contained substance when placed in an aqueous environment. The invention is also directed to a method of storing and providing chemicals so as to reduce the risk of chemicals being spilled or coming into contact with the environment during transportation or storage.
The packaging system of the invention comprises a pouch or pouch of a water-soluble or water-dispersible film that encloses a hazardous or toxic chemical contained in the gel. The gel itself also has advantages as a chemical compound concentrate. When using the gel of the invention with a container of the invention, a unique system is obtained which is integral and as such prevents the release and penetration of the contained chemical into the environment.
The purpose of the packaging system according to the invention is to store a hazardous or toxic chemical in a manner that prevents its rapid penetration into the environment. This object is achieved according to the invention not only by providing the packaging as a barrier, but also by using the form of content that forms with the packaging;<sub>:</sub>· Y ''; ·· '·. /.
integrated system.
The invention also relates to a method, storage and provision of chemical compounds that are toxic and dangerous to prevent their undesirable contact with the environment during transportation and storage, the method comprising:
i) mixing at elevated temperature of the chemical compound with the other components of the gel until sufficient dissolution or dispersion of the components to form a visually substantially single phase, ii / allowing the mixture to cool and form a gel, and iii / introducing a predetermined amount a water-soluble or dispersible film and sealing the bag.
According to a preferred embodiment of the invention, the chemical is an agrochemical. According to a preferred embodiment of the invention, the contained chemical is therefore toxic and dangerous for the environment and for the persons handling it. The gel according to the invention comprises essentially organic materials. Thus, according to a preferred embodiment of the invention, the gel comprises a chemical compound and one or more components selected from the group consisting of a surfactant, a dispersant, a thickener, a solvent, and a gelled or gelling agent. According to another preferred embodiment, the coating comprises a chemical compound and a nonionic surfactant. The surfactant is preferably a nonionic emulsifier. Preferably, the nonionic emulsifier is a sulfonate. According to another preferred embodiment, the organic solvent is a petroleum hydrocarbon selected from the group consisting of aromatic and aliphatic solvents. According to another preferred embodiment, the gel comprises a chemical compound and a solvent. Preferably, the gel comprises a chemical compound, a gelling agent, a solvent, and a surfactant. The water content of the gel is preferably less than 5 phy<sub>t</sub> based on the gel as a whole. The viscosity of the gel is preferably 1000 to 30000 mPa s. Preferably, the gel has a density greater than 1. According to a preferred embodiment of the invention, the pouch material of a water-soluble polymer film having a thickness of 10 to 500 microns is substantially impermeable and substantially insoluble. or non-dispersible in the organic components of the gel.
As mentioned above, a toxic or dangerous chemical can be any compound that harms people who have to handle it or the environment. Agrochemicals such as pesticides such as herbicides, fungicides, nematicides, insecticides and plant protection agents such as plant growth regulators and plant nutrients are mentioned as one class of such compounds,
In practice, the gel material of the invention comprises an active ingredient that is a hazardous or toxic chemical, together with ingredients that contribute to or assist in the formation of a gel, such as surfactants, dispersants, thickeners, solvents, and gelling agents.
The gel is typically a colloid in which the dispersed phase is combined with a continuous phase to form a viscous, gel-like product. The gel may be a dispersion system, which generally consists of a high molecular weight compound or a small particle agglomerate in very intimate association with a liquid. The gel of the invention is essentially one physical phase, at least according to visual observation. The gels of the invention may advantageously be cut by slicing, and such individual cut portions may again merge with each other when sprayed.
Solvents suitable for the gel of the invention are organic solvents, for example petroleum hydrocarbons, which include both aliphatic and aromatic solvents. The surfactants used in the present invention are anionic and nonionic surfactants and mixtures thereof. Examples of gelling agents useful in the present invention include mixtures of dioctylsulfosuccinate salt and sodium benzoate, tetramethyldecyndiolethoxylated dialkylphenol, modified clay and propylene carbonate mixtures, hydrogenated castor oil, ethoxylated vegetable oil, sodium dioctyl ester / sodium sulfosuccinate / sodium sulfosuccinate, sodium thiosulfate succinate. and hekyndiol,
The gel material used according to the invention is essentially a material whose phase difference γ between the controlled shear strength and the resulting shear deformation is such that tg / µl. / is less than or equal to 1.5 and with an yield of less than or equal to 1.2,
Tg /> f / is the tangent of the angle y / or the phase difference, Measuring y? is performed with a rheometer having a fixed flat plate and a rotating cone above the plate so that the angle between them is less than 10 °, preferably 4 °. The cone is rotated by a speed-controlled motor. Sotation is sinusoidal, ie torque and angular displacement change are a sine function with time. This angular displacement corresponds to the aforementioned shear deformation. The torque of the controlled speed motor causing the angular displacement corresponds to the above shear strength.
The gel which can be used according to the invention is primarily organic, that is, it has a low water content, generally less than 5% by weight, preferably less than 3%, and more preferably less than 1%. a viscosity of 500 to 50,000 mPa s, preferably of 50,000 and in particular of 1,000 to 30,000 and most preferably of 1,000 to 5,000 mPa s, as measured by a Brookfield viscometer at 23 ° C with a flat plate at 20 rpm. tests, according to the invention are carried out at 23 ° C (room temperature) unless otherwise stated.
Gels of the invention are preferred if they meet the following test conditions; 500 g of material / gel is placed in a water-soluble polyvinyl alcohol bag (having a wall thickness of 50 microns) and the bag is sealed. The pouch is suspended using a pin and a needle (0.1 mm in diameter) is inserted into the lower third and the needle is withdrawn again. Observe for 30 minutes to determine material / gel flow. The gel which is preferred according to the invention does not flow. The drop of material that appears at the hole does not flow.
Preferred characteristics of the gel according to the invention are the following properties (alone or in combination):
the viscosity is to be 500 to 50000 mPa s, preferably 1000 to 30000 mPa s, and in particular 1000 to 5000 mPa s / measured by a Brookfield viscometer;
- the water dispersibility is to be substantially perfect, with the gel being subjected to normal stirring in water for 15 and preferably 10 minutes;
the gel preferably comprises a substantially non-aqueous solvent.
The chemical nature of the pouch-forming coating film can be varied. Suitable materials include water-soluble or water-dispersible materials which are insoluble in organic solvents used to dissolve or disperse the active ingredient (agrochemicals). Particularly suitable materials are, for example, polyethylene oxide, for example polyethylene glycol; starch and modified starch; alkylcellulose and hydroxyalkylcellulose such as hydroxymethylcellulose, hydroxyethylcellulose, hydroxypropylcellulose; carboxymethylcellulose; polyvinyl ethers such as polymethyl vinyl ether and poly (2-methoxyethoxyethylene); poly (2,4-dimethyl-6-triazinylethylene); poly (3-morpholinylethylene); poly (N1,2,4-triazolylethylene); poly (vinyl sulfonic acid); polyanhydrides; low molecular weight melamine formaldehyde resins; low molecular weight urea-formaldehyde resins; poly (2-hydroxyethyl methacrylate); polyacrylic acid and its homologues.
A preferred coating film comprises or is made of polyvinyl alcohol (PVA). When polyvinyl alcohol is used, it is preferably partially or fully alcoholized or hydrolyzed, for example from 40 to 100% and preferably from 80 to 99% of an alcoholized or hydrolyzed polyvinyl acetate (or other ester) film. Copolymers or other derivatives of such polymers can also be used.
Other preferred materials for such sachets of the invention are polyethylene oxide, methylcellulose and polyvinyl alcohol.
The following additional characteristics, either alone or in combination, represent an additional preferred embodiment of the invention:
The gels and vesicles containing the gel preferably have a specific gravity of greater than 1 and especially greater than 1.1. The gels contained in the pouch of the invention preferably have spontaneity (hereinafter)
defined / less than 75 » <sup>with</sup> The bags and pouches of the invention generally have a capacity of 0.01 to 12 liters, preferably 0.2 to 12 liters, and in particular 0.45 to 6 liters. The bags and pouches of the invention are made of a water-soluble polymer film. The film thickness is generally 10 to about 500 microns and preferably 20 to 100 microns.
Preferably, the bags and pouches of the invention are not filled to their full capacity; in general it is filled with a gel of 60%, the gel preferably containing agrochemicals, preferably it is filled at least 70% by volume and in particular 80 to 99% and most preferably 85 to 95% by volume. its capacity, since unused capacity provides the bag with tear resistance when dropped, transported or stored. This unused capacity may or may not contain air or inert gas. Unused capacity that already contains air or gas improves impact resistance. However, when deciding on the level of unused capacity, the benefit of increased impact resistance at the expense of unused capacity should be considered in order to balance the benefit of increased resilience at the expense of unused capacity. Thus, when a bag or pouch is stored and / or transported in a shock absorbing container, it is not useful to create such unused bag capacity.
the capacity to which the bag or bag is filled and the already unused capacity is filled or not filled with air or gas, is influenced by whether the bag or bag should fall or float. Whether the bag is floating or falling depends not only on the unused capacity, but also from bag or pouch density.
The water-soluble films used to produce water-soluble bags and pouches are known per se. To produce such bags or pouches, the film is shaped (optionally welded partially) and then filled with gel. Generally, gels are capable of flowing although their flow rate is low because of their high viscosity. If necessary, they are pressed into the bags and pouches. Packaging in which the gels are filled has not yet been used in agriculture.
After filling with the above-defined gel compositions, it is filled. . i .. ·, ..—. · -><sup>-</sup>iir> auffiV-wftíi'i'Hfftvi<sup>,</sup>'·· ••' i '-<sup>1</sup>-' <sup>Μ</sup>' <sup>1</sup> L- - 't ..! i U. ·> ιΊ ·? .KM
The 10 bags finally close, generally by heat sealing. This closure is known per se.
The invention is illustrated by the following examples.
In the examples, the viscosity refers to a Brookfield viscosity, which is measured as described above with a Brookfield viscometer having a flat plate rotating at a rate given by 20 rpm. In all cases, gels are prepared having a tg / 0.75-1.5.
The emulsion stability of the prepared gels is evaluated as follows: 1 ml of gel is mixed with 99 ml of water in a 150 ml tube; the pipe is inverted 10 times at a rate of 1 invert per second. The stability of the emulsion is evaluated by subtracting the relative amount of phases over 24 hours. The emulsion stability rating scale is as follows: excellent when the amount of emulsion (milky appearance phase) is 98-100% (v / v); creamy, thin; good if the amount of emulsion is 90 to 98% by volume; mainly creamy with not more than 5 ml thin; sufficient ”if the emulsion represents 70 to 90% by volume, creamy or thin; poor if the emulsion yields a volume of 70 or less 7 total.
The above spontaneity is assessed as follows: A mixture of 1 ml of gel and 99 µl of water is placed in a 150 ml glass tube (22 mm diameter), which is then stoppered and turned 180 ° (i.e., the upper end down). The total number of these tube reversals up to complete gel dispersion is referred to as spontaneity.
EXAMPLES OF THE INVENTION »
Example 1
The gel is prepared by mixing and shaking at 50 ° C a mixture of the following ingredients until they are completely dissolved or dispersed:
- 11 64,8 $ of the active substance, which is the herbicide 2,4-D-phenoxybenzoic acid (in the form of isooctyl ester),
24,2% of aromatic solvent of 65 ° C flash point,
4.0 $ nonionic sulfonate mixed emulsifier,
1.0 $ calcium alkylbenzene sulfonate
6.0 of a mixture of dioctylsufosuccinic salt and sodium benzoate.
While stirring, dissolution or dispersion is observed and then gel formation occurs. Gel formation is increased when the mixture cools to about 20 ° C. The Brookfield gel viscosity is 5000 mPa s. The emulsion stability is found to be good by the above described assay.
A total amount of 1100 g of gel is placed in a 1 liter sachet of polyvinyl alcohol film / 88% hydrolyzed polyvinyl acetate, which is soluble in cold water and has a thickness of 55 microns. The bag, which is almost full (95% by volume), is heat sealed. The density of both the gel and the pouch containing the gel is 1.1. The bag is then dropped 10 times to the ground from a height of 1.2 m, without damage. The pouch is then introduced into a water-containing tank with gentle agitation (as achieved using a circulation pump). Váti?
The eyelids and its contents disperse within three minutes. There was no blockage of the 0.28 mm sieve. |
AND
Example 2 •and.
The procedure of Example 1 is repeated except that the same mixture is used but has the following auxiliaries:
5.20% nonionic sulfonate mixed emulsifier and 50.10% tetramethyldecyndiol
The Brookfield gel viscosity is 5000 mPa s. The emulsion stability is good as determined by the method described above.
A total amount of 1100 g is placed in a 1 liter sachet of polyvinyl alcohol film (88% hydrolyzed polyvinyl acetate, which is soluble in cold water and has a micrometer thickness). A pouch that is almost full / full in volume
SCC
- about 95%), heat sealed. The density of both the gel and the pouch containing the gel is 1.1. The pouch is then dropped 10 times to the ground from a height of 1.2 m without causing any damage to the pouch. The pouch is then introduced into a water-containing tank with gentle agitation (as achieved using a circulation pump); The pouch and contents disperse within three minutes. There is no blockage of the 0.28 mm sieve.
Example 3
The procedure of Example 1 was repeated using the same ingredients of the mixture but having the following auxiliary ingredients:
21.5% of a nonionic sulfonate mixed emulsifier,
3.7% sodium alkylbenzene sulfonate and 10.0% ethoxylated dialkylphenol.
The Brookfield gel viscosity is 3000 mPa s. The emulsion stability is good as determined by the method described above.
A total amount of 1100 g of gel is placed in a 1 liter sachet of polyvinyl alcohol film (88% hydrolyzed polyvinyl acetate, which is soluble in cold water and has a thickness of 55 microns). The pouch, which is almost full / 95% vol / filled, heat melts. The density of both the gel and the pouch containing the gel is 1.1. The bag is then dropped to the ground 10 times from a height of 1.2 m without causing damage. The pouch is placed in a water-containing tank with gentle agitation (as achieved using a circulation pump). The pouch and its contents are dispersed within three minutes. A sieve with a mesh diameter of 0.28 mm does not clog.
Example 4
The gel is prepared by stirring at 50 ° C the following ingredients:
61,15% bromoxynilic acid as octanoate ester,
22,85 aromatic solvent with a flash point of 38 ° C,
6.00% polyarylethoxylate,
Αίί ^ ΐ ^ ® ^ ίν £ νι £ »7ίτΜ% ί®ίίίβ'.ζί®ΛΜ''ί.ΛύίΚΪ \ λί'όΐίΜλυί \ 'υυίί ·' ν-ύ; ί <'·': '?.'
- 15 2,00 phy sodium alkylbenzene sulphonate,
6,00 fy clays modified by methylolation,
2.00 fy propylene carbonate (activating thickener),
The materials were mixed using an Attritor mixer. The product starts to gel in a few minutes. The Brookfield gel viscosity is 4200 mPa s. The emulsion stability is found to be good as described above. Spontaneity is 38.
A total amount of 1100 g of gel is placed in a 1 liter sachet of polyvinyl alcohol film (made from cold-water-soluble, 88-meter hydrolyzed polyvinyl acetate having a thickness of 55 microns). A pouch that is almost full (about 95 phy in volume) is heat sealed. The density of both the gel and the pouch containing the gel is 1.1. The bag is then dropped 10 times to the ground from a height of 1.2 m, without damage. The pouch is placed in a water-containing tank (with gentle agitation (as achieved using a circulation pump)). The pouch and its contents disperse within 10 minutes. There is no clogging of the 50 mesh / mesh diameter of 215 microns.
Example 5
The procedure of Example 4 is repeated but using a mixture of the following components:
18,65 by bromoxyniloctanoate,
15.85 phy bromoxynilheptanoate,
37.40 phy methyl chloropropionic acid (in the form of isooctyl ester), 11.10 phy of an aromatic solvent with a flash point of 38 ° C;
3.00 phy hydrogenated castor oil,
3.00 phy ethoxylated vegetable oil,
13.00 g of a nonionic sulfonate mixed emulsifier are mixed together using an AttriI stirrer.
tor. The product starts to gel in minutes. The Brookfield viscosity is 3150 mPa s. The emulsion stability is good, as determined by the above-described assay, the spontaneity is 20.
A total amount of 1100 g of gel is placed in a sachet of contents
14 liters of polyvinyl alcohol film (88% hydrolyzed polyvinyl acetate which is soluble in cold water and has a thickness of 55 microns). The pouch, which is almost full (approximately 95% by volume), is heat sealed. The density of both the gel and the pouch containing the gel is 1.1. The pouch is then dropped 10 times to the ground from a height of 1.2 m without causing any damage. The pouch is placed in a water-containing tank with gentle agitation (as achieved using a circulation pump). The pouch and its contents are dispersed within 10 minutes. There is no blockage of the filter, which is a sieve with a 0.28 mm hole diameter.
Example 6
The procedure of Example 5 was repeated except that mixture i was used
of the following components:
18,4 7 bromoxyniloctanoate,
14,0% bromoxynilheptanoate,
36,6 7 methylchlorophenoxy acetic acid (isooctyl ester),
9.0% of a nonionic sulfonate mixed emulsifier,
3.0 7 naphthalene-formaldehyde condensate sodium sulfonate,
2,0 / ° sodium sulfosuccinic acid dioctyl ester and sodium benzoate,
17.0 7 diatomaceous earth. ,
The ingredients are mixed with each other using h & la Attritor.
The product begins to have a smooth paste appearance and in a few minutes turns into a gel. The Brookfield viscosity is 9000 mPa · s. The emulsion stability is good as determined by the above-described assay. j
Spontaneity is 9 ·
A total amount of 1100 g of gel is placed in a 1 liter sachet of polyvinyl alcohol film (of 88) (hydrolyzed polyvinyl acetate, which is soluble in cold water and has a thickness of 55 microns). A pouch that is almost full / filled in volume from approximately $ 95 / m is sealed thermally. Density as gel, so the bag containing the gel is 1.1, the bag is then dropped 10 times to the ground from a height of 1.2 m,
<img file="CS9102215A3_D0001.tif" />
- 15 damage. The pouch is placed in a water-containing tank with gentle agitation (as achieved and using a circulation pump). The pouch and its contents disperse within 10 minutes. There is no clogging of the filter, which is a 0.28 mm mesh screen.
Example 7
The procedure of Example 5 is repeated, but using a mixture comprising the following components:
18,89% bromoxyniloctanoate,
12.59% bromoxynilheptanoate,
44.58% atrazine,
18.54% of the solvent of Example 5,
2.70% polyethylene glycol.
The ingredients are mixed together using an Attritor mixer.
The product starts to form a smooth paste and forms a gel in minutes. The Brookfield gel viscosity is 7300 mPa s. The emulsion stability is good as determined by the above-described assay. The gel spontaneity is 15.
A total amount of 1100 g of gel was placed in a 1 liter sachet of polyvinyl alcohol film (88% hydrolyzed polyvinyl acetate, which is soluble in cold water and has a thickness of 55 microns). The pouch, which is almost full / filled in volume from approximately $ 95 /, will heat seal. The density of both the gel and the pouch containing the gel is 1.1. The bag is then dropped 10 times to the ground from a height of 1.2 m, without damage. The pouch is placed in a water-containing tank with gentle agitation (as achieved using a circulation pump). The pouch and its contents disperse within 10 minutes. There is no clogging of the filter, which is a 0.28 mm mesh screen.
Example 8
The procedure of Example 7 was repeated, except that the mixture was used. , 2,2 ·· '-VU, ΛΛώ Ε / ^. Νί-ϊίΛΛΛ'ιΐ'-ΛϊϊΐίΙ' ^ ίί'- 'ί ^ ΖΛ.'. '. · .: -, :(, Λί. ¥ .. ·:
ilwli
- 16 containing the following components:
35,70% bromoxyniloctanoate
36,20% methyl chloropropionacetic acid (isooctyl ester)
3.00% aromatic solvent, flash point 65 ° C,
8,50 $> calcium ion non-ionic sulphonate mixed emulsifier 1.00 Jfa calcium dodecylbenzene sulphonate
17.60 tetramethyldecyndiol.
The ingredients are mixed together using an Attritor mixer.
The product starts to look like a smooth paste and a gel is formed in a few minutes, the Brookfield viscosity is 2200 mPa s. The emulsion stability is good as determined by the above test
Spontaneity is 14.
A total amount of 1100 g of gel is placed in a 1 liter sachet of polyvinyl alcohol film (88% hydrolyzed polyvinyl alcohol that is soluble in cold water and has a thickness of 55 microns). The pouch, which is almost full (approximately 95% by volume), is heat sealed. The density of both the gel and the pouch containing the gel is 1.1. The bag is then dropped 10 times to the ground from a height of 1.2 m, without damage. The pouch is placed in a water-containing tank (with gentle agitation (as achieved using a circulation pump)). The pouch and its contents are dispersed within five minutes.
fíi
There is no blockage of the filter, which is a sieve with a mesh diameter of 0.28 mm. '/
Example 9
The procedure of Example 8 was repeated using a mixture containing the following components:
the active ingredient and solvent are the same as in Example 8, and the amount of active ingredient is the same,
10.6% solvent,
$ 2.0 calcium dodecylbenzenesulfonate
11.5% of a mixture of dimethylhexane and hexyndiol, i
6.0% of kaleium alkylarylsulfonate and polyarylphenol ethoxylate.
<img file="CS9102215A3_D0002.tif" />
’//
The ingredients are mixed with each other at 90 ° C using an Attritor mixer. The product starts to look like a smooth paste and the gel is formed in minutes. The Brookfield gel viscosity is 2500 mPa s. The emulsion stability is good as determined by the above-described assay. Spontaneity is 5.
A total amount of 1100 g of gel was placed in a 1 liter sachet of polyvinyl alcohol film (88% cold-water-soluble polyvinyl acetate having a thickness of 55 microns). The pouch, which is almost full (approximately 95% by volume), is heat sealed. The density of both the gel and the pouch containing the gel is 1.1. The bag is then dropped 10 times to the ground from a height of 1.2 m, without damage. The pouch is placed in a water-containing tank with gentle agitation (as achieved using a circulation pump). The pouch and its contents are dispersed within five minutes. There is no clogging of the filter, which is a 0.28 mm mesh screen.
Example 10
The procedure of Example .5 is repeated using a mixture of the following components:
53 »5% bromoxyniloctanoate,
33 »5% bromoxynilheptanoate,
22.75% of an aromatic solvent having a flash point of 65 ° C,
4.5% of a nonionic sulfonate mixed emulsifier,
1.0 / 0 calcium dodecylbenzenesulfonate,
4.25% sodium benzoate 0.5 tetramethyldecyndiol.
These components are mixed together at 50 ° C using an Attritor stirrer. The product becomes a smooth paste and forms a gel in minutes<sub>5</sub>The Brookfield viscosity of the gel is 4850 mPa s. The stability of the emulsion is determined to be as described above, the spontaneity being 10.
A total amount of 1100 g of gel is placed in a sachet containing 3
18 liters of polyvinyl alcohol film (of cold-water-soluble hydrolyzed polyvinyl acetate of 88 microns and having a thickness of 55 microns). A pouch that is almost full (about 95 phy in volume) is heat sealed. The density of both the gel and the pouch containing the gel is 1.1. The bag is then dropped 10 times to the ground from a height of 1.2 m, without damage. The pouch is placed in a water-containing tank with gentle agitation (as achieved using a circulation pump). The pouch and its contents disperse within three minutes. There is no clogging of the filter, which is a sieve with a hole diameter. 0.28 mm.
Industrial applicability
System particularly suitable for the storage, storage and transport of toxic and dangerous products, especially agrochemicals, consisting of a bag or pouch, soluble or dispersible in water, containing the dangerous chemical in the form of a gel.
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<td> •</td><td> - 19 -</td><td></td><td>ZZ fA- O-</td>
<td></td><td>PATENT</td><td>OVÉ</td><td>Claims</td>
<td> •</td><td>1. Packaging system for</td><td>safely</td><td>chemical storage</td>
<td></td><td>means, I will mark</td><td>r a c s</td><td>is that it consists of</td>
Contents4
534 members in 45 offices
Priority claims4
| Document | Office | Kind | Date |
|---|---|---|---|
| 55461590 | United States of America | A | |
| 55461590 | United States of America | A | |
| 90554615 | – | – | – |
| US19900554615 | – | – | – |
Members534
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|---|---|---|---|
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| AU8097791A | Australia | A | |
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| FI921143A | Finland | A | |
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| MA22216A1 | Morocco | A1 | |
| MA22217A1 | Morocco | A1 | |
| MA22218A1 | Morocco | A1 | |
| MA22220A1 | Morocco | A1 | |
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| ZA913276B | South Africa | B | |
| AP9200371A0 | African Regional Intellectual Property Organization (ARIPO) | A0 | |
| AP9200372A0 | African Regional Intellectual Property Organization (ARIPO) | A0 | |
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| PT98352A | Portugal | A | |
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| EP0491915A1 | European Patent Office (EPO) | A1 |
Numbers
- Publication, DOCDB
- 221591
- Publication, EPODOC
- CS221591
- Application
- 912215
- Application, DOCDB
- 221591
- Application, EPODOC
- CS19910002215
Titles
- English
- PACKAGING SYSTEM FOR CHEMICALS SAFETY STORAGE
Classification
- CPC, 12
- A01N25/34
- A01N43/70
- A01C15/003
- A01N25/04
- A01N37/40
- A01N39/04
- B65B9/042
- B65B29/10
- B65D65/46
- C05G5/40
- C05G5/45
- C05G5/18
- IPC, 14
- B65D65 38
- A01C15 00
- A01N25 04
- A01N25 34
- A01N37 40
- A01N39 04
- A01N43 70
- B65B9 04
- B65B29 10
- B65D65 46
- B65D77 06
- B65D81 28
- B65D85 82
- C05G5 18