Wrapping of liquid chemical or dissolved or dispersed chemical in liquid or gel
Abstract
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8 claims: 3 independent, 5 dependent
- 1-11- PATE λτ T Ο V Ε "/ - , S, I’ A R Ο Κ Υ 1 · Balení, vy z na č e η é t í m , že je tvořeno nebezpečnou chemikálií rozpuštěnou nebo dispergovanou vkapalině nebo gelu, obsaženou, resp. obsaženém ve ve vo-dě rozpustné nebo ve vodě dispergované laminovaná fólii.
- 2Balení podle nároku 1,vyznačená tím,že nebezpečnou chemikálií je zemědělská chemikálie nebopesticid, nebo prostředek pro ochranu rostlin nebo růsto-vý regulátor rostlin. 3· Balení podle nároku 1 nebo 2, vyznač ené t í m , že nebezpečná chemikálie je rozpuštěna nebo dis-pergovaná v kapalině. 4· Balení podle nároku 1 nebo 2, vyznač ené z tím, že nebezpečná chemikálie je rozpuštěna nebo dis-pergovaná v gelu. 5. 3alení podle některého z předcházejících nároků,vyznačené tím, že laminovaná folie ma tloušt-ku 10. až 250 mikrometrů, výhodně 15 až 80 mikrometrů'.
- 36. Balení podle některého z předcházejících nároků,vyznačené tím, že má obsah nebezpečné che-mikálie 0,2 až 12 litrů, výhodně 0,45 až 6 litrů. Balení podle o ho z ? c b -i '/.plících r. vyznačená t í z , žs ve vodě rozpustná nebove vodě dispergovatelna laminovaná folie je nerozpustnáv kapalině nebo gelu, ve které, resp. ve kterém je roz-puštěna nebo dispergována nebezpečná chemikálie. S. 3alení podle některého z předcházejících nároku, vyznačené t í m , že alespoň jedna z vrstevlaminované folie je zhotovena z materiálu zvoleného zeskupiny zahrnující polyethylenoxid, methyleelulozu nebočástečně nebo zcela alkoholyzovaný nebo hydrolyzovaný polyvinylacetát.
- 49. Balení podle nár;že uvedená alespoň ječní .u 6, v y z n a č e n é tím,vrstva je zhotovena z polyvinyl acetátu alkoholyzovaného nebo hydrolyzovaneho v rozsahu40 až 99 76, výhodné v rozsahu 7 0 až 92 7í.
- 510. Balení podle některého z předcházejících nároků,vyznačené tím, že alespoň dvě vrstvy lami-nované fólie jsou zhotoveny ze stejného materiálu.
- 611. Balení podle některého z nároků 1 až 9, vyzná v * č e n é t í m , že alespoň dvě vrstvy laminované folie jsou zhotoveny z různého materiálu. Balení podle některého z předcházejících nároků, t í m., že laminovaná folie sestává ze dvou vrstev. 13- Balení podle nároku 12, v y z č e n t í m 13 že poměr tlouštěk obou vrstev je roven 0,1 až 10, výhod-ně 0,5 až 2. 14· Šálení podle některého z nároků 4 až 13, vyz-načen tím, že gel má viskozitu 0,5 až 50 ?a.s,výhodně 1.až 12 Pa.s. 15· Balení podle některého z nároků 4 až 14, vy z -načené tím, že gel má fázový rozdíl mezi říze-ným smykovým napětím a rezultujícím smykovým napětím ta-kové hodnoty, že tangens fázového rozdílu je menší než 1,5nebo rovný 1,5, výhodně menší než 1,2 nebo rovný 1,2. 6. Balení podle některého z nároků 4 až 15, v y z nač e n é t í m , že gel má samovolnost / tak, jak b^tla definována výše/ menší než 75, výhodně menší než 25- 17· Způsob výroby balení podle některého z předcháze-jících nároků, vyznačený tím, že zahrnujelaminování dvou nebo více vrstev dohromady tlakem, za-hřátím, zesítěním, roztavením nebo pomocí vody za vzni- z ku laminované folie.
- 718. Balení podle nároku 1 , v y z n a č e n é tím,že je takové, jak bylo výše popsáno.
- 819. Způsob podle nároku 17, v y z n a č e n ý tím,že je takový, jak byl výše popsán. Zastupuje JUDr Jarmila Trapfoviá
Independent claims8
37 paragraphs in 2 sections, as filed
? «JUDr. J. TRA PLADocratic Bureau "Patents, Ocivanr, *, stamps of the whole design, hccc, bf5f5 f-sahs i. Štěpánská 16
Packaging of liquid or dispersed hemicycle or chemical of liquid or gel
Field of the invention T3-i2
<img img-format="tif" img-content="drawing" file="CS9101249A2D00021.tif" id="idf0001" />
The invention relates to a package of liquid or nebulized chemical liquid dissolved or dispersed in a nebuliser fluid which is contained in a package of water-soluble or water-dispersible material.
BACKGROUND OF THE INVENTION Hitherto, most hazardous liquids are stored in metallic barrels or in plastic containers where it is desirable to have a smaller amount of these hazardous substances.
Dangerous compounds, among which are mainly compounds used in agriculture, have different application forms. However, it is advantageous for peasants to have the agricultural chemical in liquid form. Such molded agricultural chemicals are more easily applied to the malocclusion where they are to be applied, for example by spraying. However, the formulation of dangerous chemicals in liquid form has some disadvantages and brings some difficulties. The capillary can, for example, leak from the container to the ground or leak from leaks and holes. In addition, it may rupture such a container if it is exposed to disproportionate load or impact.
It is very difficult to develop a packaging system that would be suitable for the peasants, which would be successful in all manipulation and would therefore be non-fossil and ecological.
It is known to be soluble in plastics. However, the throttle, which may be agricultural chemicals, may be bottles or sacks made of foil, however, they may burst or result in the spillage of a liquid chemical chemical with all the unfortunate consequences to which such spillage occurs. The plastic film which the packaging is made of may, as a rule, contain different batches which lead to foil weakening in some places on the packaging and which are a potential source of leakage of such a package. The varnish weak spots of the container are especially air bubbles, dust particles or other foreign matter, or gel particles both on the surface and the car. inside the plastic mass from which z
If the films with such weak spots are subjected to repeated manipulation or, for example, to impact, then the film may break in the weak position of the foil and release the liquid from the package. This concerns in particular the production of agricultural chemicals and when it is distributed and applied by distribution distributors, and peasants with these chemicals are relatively harsh and hence dangerous.
Said almost weaknesses are, to a greater or lesser extent, found in all types of foil used, and their amount depends on the method of manufacture of the films. In the case of the production of the film by casting, such a film may contain a small number of small lines (craters), although more small inclusions of the gel are often included. If the foil is produced by extrusion, then it contains a larger number of said small directions. The aim of the present invention is to develop a new agricultural chemicals packaging system that is safe for manipulation. Another object of the invention is to develop a new agricultural chemicals system that would handle and handle the handling of the end consumer, such as a wheel. The aim of the invention is also to develop a new stocking system for agricultural chemicals,
Thus, the invention seeks to provide a means of preventing the leakage of volatile or dissolved chemicals through the openings in the foil from which the container is formed. Even though the presence of these small holes in the film is relatively thin, the presence of one or the other in many packs can cause considerable damage, as the liquid will leak out of the package and infect the surrounding area.
SUMMARY OF THE INVENTION
The packaging system according to the invention is characterized in that the hazardous material in liquid or gel form is contained in a water-soluble or water-dispersible bag made of laminated foil.
According to a preferred embodiment of the invention, hazardous chemicals are agricultural chemicals, for example pesticides, plant protection products or plant growth regulators.
The invention also includes the packaging of dangerous chemicals dissolved or dispersed in a liquid or gel contained in a water-soluble or water-dispersible laminated film.
ZZ
By "laminated film" is meant a film made of two or more initially separate layers which are joined together. These layers can be combined together in the laminate by conventional techniques. The layers can thus be joined, for example, by compression, heating, crosslinking, molding or adhesion, or by using some combination of the techniques. The mutual adhesion of said layers may be achieved by using separate adhesives or, where appropriate, water. In the case of the use of suitable water-soluble or water-dispersible layers, a particularly suitable method for obtaining the laminated film of the individual layers is achieved either by using a low molecular weight (generally low molecular weight) PVA adhesive simply by using water. from
Since the laminated film is formed by two or more layers, the probability of the occurrence of holes in such a laminated foil is reduced practically to zero. This is due to the fact that it is very unlikely that the two holes, each in one of the separate layers, overlap each other and form a so-called opening from the package. In addition, the tensile strength of the tensile multilayer (e.g., two-ply / film) tensile strength is similar to a film of the same thickness, made of a single layer.
The laminated films to be used in the present invention generally have a thickness of from 10 to 250 microns, preferably from 15 to 80 microns. The individual layers of the laminated film used within the scope of the invention are typically half the size. If two layers are used then the ratio of the thicknesses of both layers is generally in the range of 0.1 to 10, preferably 0.5 to 2. Sacks or bags made of laminated films according to the invention generally have a content of 0 , 2 to 12 liters, preferably 0.45 to 6 liters.
Materials which may be used within the scope of the invention are water-soluble or water-dispersible materials which are insoluble in organic solvents used to dissolve or disperse the chemiques contained in the packages of the materials.
Suitable materials are polyethylene oxide or methylcellulose; the preferred material is a material which is or is derived from a polyvinyl alcohol, that is, partially or wholly alcoholised or hydrolyzed, for example alcoholised or hydrolyzed in the range of 4 to 99%, preferably in the range of 70 to 92%, of polyvinyl acetate.
The laminated film layers of the invention may be made of the same or different material. Films made from different materials may have advantageous properties. Thus, for example, the inner layer of the package may be made of a material that is more resistant to the action of the earth-chemical chemical than the material from which the packaging layer is more elaborate. In addition, the outer layer of the package may be selected to have one or more of the following properties: a) faster water solubility (compared to the inner layer of the package or as compared to a single film); b) improved mechanical properties including improved resistance to mechanical damage; c / improved machinability; d / less sensitivity to relative humidity; e / frost and / or high temperature resistance.
One or more layers of laminated film may or may contain a plasticizer. A suitable content of suitable granules from the laminate in the inner layer of the laminated film can improve the sealing properties of the laminated foil and make the film less prone to elongation. Such a foil is more easily machinable and the bag containing the liquid is also more easily closed. A suitable plasticizer content in the outer layer of the laminated foil, which makes the outer surface more resistant to more flexible amechanical damage at low temperatures or in impact and motion. from
The individual sheets of the laminated film according to the invention can be made using different techniques, for example by extrusion or casting. A laminate made of layers made of different properties, including higher grades, can have yields, increased tensile strength, and increased elongation resistance. Said increased tensile strength and / or increased resistance to elongation can be achieved in only one direction of the foil. from
Laminated foils are used in the present invention to produce packages that do not have time-consuming, dangerous consequences, such as those known in the prior art, from which the packaged fluid escapes later on in the subsequent handling and the weaknesses of the film discussed. in performance, above
As already mentioned, the bags / or storage system / may contain either liquids or gels. According to a preferred embodiment of the invention, the bags or the said cartridge system comprises a gel.
According to a preferred embodiment of the invention, the gels are selected in such a way that they have one or more of the following features: 1) the resultant gels form a continuous system and / or 2) the resulting gels have a viscosity of 1.5 to 51 Pa.s, more preferably 1 up to 2% of the viscosities as measured by the high-viscosity viscometer in the form of a flat plate rotating at a speed of 21 rpm, the gel has a phase difference f between the controlled shear stress and the resulting shear stress of such a value that tg / is less than or equal to 1.5, preferably less than or equal to 1.2; tg / f / is tangent - 7 - angle ii / or iris difference /; mt * _ * * *? ', r ^ t & amp; The cross-sectional area of the measuring plate 4 and the rotating cone arranged above this plate is such that the angle between them is less than 10, preferably less than 4 °; said cone rotates by means of a variable speed motor, the rotation being sinusoidal, which means that the torque and the angular displacement change with the time as a sinusoidal function; this angular displacement corresponds to the aforementioned shear stress; the torque of the engine with adjustable speeds which causes said angular displacement / response to the above-mentioned controlled shear stress; the gels preferably have a density greater than 1, preferably higher than 1.1, the gels have a self-defeatability as defined by less than 75, preferably less than 25. The abovementioned self-solubility has been evaluated by the following method: a mixture 1 ml of gel and 99 ml of water was suspended in 150 ml of water and the solution was stirred at 180 DEG / day. The number of rotations necessary to completely disperse the gel is called self-sufficiency. the rotation being sinusoidal, which means that the torque and angular displacement change with the time as a sinusoidal function; this angular displacement corresponds to the aforementioned shear stress; the torque of the engine with adjustable speeds which causes said angular displacement / response to the above-mentioned controlled shear stress; the gels preferably have a density greater than 1, preferably higher than 1.1, the gels have a self-defeatability as defined by less than 75, preferably less than 25. The abovementioned self-solubility has been evaluated by the following method: a mixture 1 ml of gel and 99 ml of water was suspended in 150 ml of water and the solution was stirred at 180 DEG / day. The number of rotations necessary to completely disperse the gel is called self-sufficiency. the rotation being sinusoidal, which means that the torque and angular displacement change with the time as a sinusoidal function; this angular displacement corresponds to the aforementioned shear stress; the torque of the engine with adjustable speeds which causes said angular displacement / response to the above-mentioned controlled shear stress; the gels preferably have a density greater than 1, preferably higher than 1.1, the gels have a self-defeatability as defined by less than 75, preferably less than 25. The abovementioned self-solubility has been evaluated by the following method: a mixture 1 ml of gel and 99 ml of water was suspended in 150 ml of water and the solution was stirred at 180 DEG / day. The number of rotations necessary to completely disperse the gel is called self-sufficiency. this angular displacement corresponds to the aforementioned shear stress; the torque of the engine with adjustable speeds which causes said angular displacement / response to the above-mentioned controlled shear stress; the gels preferably have a density greater than 1, preferably higher than 1.1, the gels have a self-defeatability as defined by less than 75, preferably less than 25. The abovementioned self-solubility has been evaluated by the following method: a mixture 1 ml of gel and 99 ml of water was suspended in 150 ml of water and the solution was stirred at 180 DEG / day. The number of rotations necessary to completely disperse the gel is called self-sufficiency. this angular displacement corresponds to the aforementioned shear stress; the torque of the engine with adjustable speeds which causes said angular displacement / response to the above-mentioned controlled shear stress; the gels preferably have a density greater than 1, preferably higher than 1.1, the gels have a self-defeatability as defined by less than 75, preferably less than 25. The abovementioned self-solubility has been evaluated by the following method: a mixture 1 ml of gel and 99 ml of water was suspended in 150 ml of water and the solution was stirred at 180 DEG / day. The number of rotations necessary to completely disperse the gel is called self-sufficiency. the gels preferably have a density greater than 1, preferably higher than 1.1, the gels have a self-defeatability as defined by less than 75, preferably less than 25. The abovementioned self-solubility has been evaluated by the following method: a mixture 1 ml of gel and 99 ml of water was suspended in 150 ml of water and the solution was stirred at 180 DEG / day. The number of rotations necessary to completely disperse the gel is called self-sufficiency. the gels preferably have a density greater than 1, preferably higher than 1.1, the gels have a self-defeatability as defined by less than 75, preferably less than 25. The abovementioned self-solubility has been evaluated by the following method: a mixture 1 ml of gel and 99 ml of water was suspended in 150 ml of water and the solution was stirred at 180 DEG / day. The number of rotations necessary to completely disperse the gel is called self-sufficiency.
By the term "continuous system" is meant a material that is visually homogeneous, meaning that it has the appearance of being as if it were only a single phase, but this does not exclude the possibility that small solid particles are dispersed in this material, provided that these particles are so small that they do not form a visible separate phase.
It is known that the gel is generally a colloid in which the dispersed phase is combined with a continuous phase to form a viscous product having a referent appearance; there are also dispersing systems usually consisting of a high molecular weight compound or a small particle aggregate very closely connected with a liquid.
In order to create this shape, the shaped / hopefully formed sack is generally capable of flowing because of the high gel constraint due to the reason why it is not. When it is a heat-seal. the gel is partially filled with gel even if it is a very gentle gel. The reservoir is filled with very difficult viscosity. GAS has yet to be filled with gel in the gel, it has to close the bags, the foil has to be sealed into it
Gels are the slow flow used to make up for the powder / which is the galling used, usually
In the following sections, the invention will be illustrated by the following examples, with reference to embodiments thereof, which are purely illustrative of the invention and are not intended to limit the scope of the claims. Example 1 The film is prepared in the form of a roll of two thinner films by lamination: the two films are made up to 80% hydrolyzed polyvinyl alcohol (soluble in water), each of which has a thickness of 25 mm- of the meteor. One of the foils contains 17 grams of plasticizer, and the other contains 15 grams of plasticizer. Both foils are combined together by heating (100 ° C) and compression to form a single 50 micron film. from
This laminated foil is then used to make one liter pouches containing a solvent-based liquid herbicide / mixture of ioxynil and bromoxynil ester, using the & quot; form-and-fill & quot; method. i - 9 -
The herbicide is in the form of a solution in a solvent composed of a mixture of aromatic hydrocarbons C10. from
The film is inserted into the machine so that the layer with the higher surface of the plasticizer forms the outer side of the produced bags from
The foil is thus easily machinable. During the production, filling and transport of 500 bags, no release of the herbicide from these bags was observed. EXAMPLE 2 A gel is prepared by stirring a mixture of the following ingredients at 50 ° C: active substance: 2,4-D-phenoxybenzoic acid isooctyl ester: 64.8 g solvent: aromatic solvent with flash point 65 ° C: 24.2% surfactant: a mixture of nonionic and sulfonate mixed emulsifier: 4% calcium alkylbenzene sulphonate: 1 g; gelling agent: mixture of sodium benzoate dioctyl sulfosuccinate salt: 6;
The mixture is agitated and shaken until all the components of the mixture have been dissolved or dispersed. The mixture is first dissolved and then gelled. The gelatinization process is intensified by cooling to room temperature (20 ° C). The Brookfield viscosity of the gel is 3 Pa: Good stability of the emulsion is determined in the test described above. 1100 g of this gel is then introduced into a single-liter bag made of a PVA-foil which is similar to that of Example 1. A bag that is nearly full (about 95; The density of gel and the sachet contained in the gel is 1.1. The density of the gel and the bag containing the gel is then heat sealed.
This bag is then dropped ten times from a height of 1.2 m to the ground. No rupture of the bag or leakage of the gel was observed. Another bag made in the same way was tested for leakage of the gel at the opening in its wall. For this purpose, the bag was punched with a simple needle / diameter of 0.6 mm /. A small jar of gel was formed in the hole opening, which was too small to distribute it from the surface of the bag or to run over the surface of the bag. rJUDr, Jarmila Traplovd
Contents2
534 members in 45 offices
Priority claims12
| Document | Office | Kind | Date |
|---|---|---|---|
| 9009898 | United Kingdom | A | |
| 9009898 | United Kingdom | A | |
| 55461590 | United States of America | A | |
| 55461590 | United States of America | A | |
| 68032191 | United States of America | A | |
| 68032191 | United States of America | A | |
| 9009898 | – | – | – |
| 90554615 | – | – | – |
| 91680321 | – | – | – |
| GB19900009898 | – | – | – |
| US19900554615 | – | – | – |
| US19910680321 | – | – | – |
Members534
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| SE9101245D0 | Sweden | D0 | |
| DK81191D0 | Denmark | D0 | |
| ITMI911197D0 | Italy | D0 | |
| GB9109503D0 | United Kingdom | D0 | |
| CA2041313A1 | Canada | A1 | |
| DK81191A | Denmark | A | |
| FI912135A | Finland | A | |
| FI912135A7 | Finland | A7 | |
| FI912135L | Finland | L | |
| SE9101245L | Sweden | L | |
| IE911248A1 | Ireland | A1 | |
| AU7611491A | Australia | A | |
| DE4113786A1 | Germany | A1 | |
| CN1056468A | China | A | |
| GB2244258A | United Kingdom | A | |
| HU911458D0 | Hungary | D0 | |
| NL9100706A | Netherlands (Kingdom of the) | A | |
| BR9101835A | Brazil | A | |
| CS124991A2This record | Czechoslovakia (until 1993) | A2 | |
| KR910019870A | Republic of Korea | A | |
| MA22142A1 | Morocco | A1 | |
| US5080226A | United States of America | A | |
| CA2065159A1 | Canada | A1 | |
| CA2066243A1 | Canada | A1 | |
| AU8039591A | Australia | A | |
| AU8039691A | Australia | A | |
| AU8039791A | Australia | A | |
| AU8039891A | Australia | A | |
| AU8039991A | Australia | A | |
| CN1058191A | China | A | |
| IE912504A1 | Ireland | A1 | |
| IE912505A1 | Ireland | A1 | |
| IE912506A1 | Ireland | A1 | |
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| IE912508A1 | Ireland | A1 | |
| CN1058317A | China | A | |
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| CN1058319A | China | A | |
| CN1058320A | China | A | |
| WO9201374A1 | World Intellectual Property Organization (WIPO) | A1 | |
| WO9201375A1 | World Intellectual Property Organization (WIPO) | A1 | |
| WO9201376A1 | World Intellectual Property Organization (WIPO) | A1 | |
| WO9201377A1 | World Intellectual Property Organization (WIPO) | A1 | |
| WO9201378A1 | World Intellectual Property Organization (WIPO) | A1 | |
| AU8097791A | Australia | A | |
| AU8097891A | Australia | A | |
| AU8105291A | Australia | A | |
| AU8200091A | Australia | A | |
| AU8220391A | Australia | A | |
| CS221591A3 | Czechoslovakia (until 1993) | A3 | |
| CS221691A3 | Czechoslovakia (until 1993) | A3 | |
| CS221791A3 | Czechoslovakia (until 1993) | A3 | |
| CS221891A3 | Czechoslovakia (until 1993) | A3 | |
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| LU87924A1 | Luxembourg | A1 | |
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| MA22221A1 | Morocco | A1 | |
| ZA913276B | South Africa | B | |
| AP9200371A0 | African Regional Intellectual Property Organization (ARIPO) | A0 | |
| AP9200372A0 | African Regional Intellectual Property Organization (ARIPO) | A0 | |
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| IL97977D0 | Israel | D0 | |
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| PT98352A | Portugal | A | |
| PT98353A | Portugal | A | |
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| PT98355A | Portugal | A | |
| EP0491915A1 | European Patent Office (EPO) | A1 |
Numbers
- Publication, DOCDB
- 124991
- Publication, EPODOC
- CS124991
- Application
- 911249
- Application, DOCDB
- 124991
- Application, EPODOC
- CS19910001249
Titles
- English
- WRAPPING OF LIQUID CHEMICAL OR DISSOLVED OR DISPERSED CHEMICAL IN LIQUID OR GEL
Classification
- CPC, 11
- A01N25/04
- A01N43/70
- A01C15/003
- A01N25/34
- A01N37/40
- A01N39/04
- B65B9/042
- B65B29/10
- B65D65/46
- C05G5/40
- C05G5/45
- IPC, 13
- A01N25 02
- A01C15 00
- A01N25 04
- A01N25 34
- A01N37 40
- A01N39 04
- A01N43 70
- B32B27 00
- B32B27 30
- B65B9 04
- B65B29 10
- B65D65 46
- C05G3 00