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EP0148170A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Water-soluble film

Assignee: Monsanto Co
•
Filing: 1985-01-02
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Granted: —
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Expires: 2005-01-02
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Abstract

Abstract @ The present invention is directed to water-soluble film comprising: The cold water-soluble packaging films formed from the compositions of this invention are useful for packaging of agricultural chemicals which are in granule or dust form. By containing such water dispersable granule or dust agricultural chemicals in water-soluble bag films of this invention, one is able to avoid the problem of dust which may be irritating and/or toxic to the user. Specific examples of agricultural chemicals which are usually packaged in pre-measured portions in the water-soluble films of the present invention are insecticides, herbicides, nematocides, fungicides, plant growth regulants and herbicidal antidotes. The water-soluble films of the present invention may also be useful in containing such items as laundry detergents, bleaches and caustic products; other uses would involve the containment of activated charcoal, pigments, dyes, foodstuffs and food additives.

Inventors

  • 👤 John Melvin Surgant

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-05 12:05
CPC Classifications
C; C08; C08J; C08J5/00; C08J5/18; B; B65; B65D; B65D65/00; B65D65/38; B65D65/46; C08L; C08L29/00; C08L29/02; C08L29/04; C08J2329/00; C08J2329/02; C08J2329/04; C08L39/00; C08L39/04; C08L39/06

Claims Analysis

Total Claims: 15
Claim 1
Independent Claim 62 words
A composition useful for forming water-soluble film comprising: wherein said polyvinyl alcohol is a hydrolyzed polyvinyl acetate having about 75-99 mole percent of the acetate groups replaced by hydroxyl groups, about 1-40% by weight residual acetate, and a molecular weight from about 2000 to about 20,000, and wherein said polyvinyl pyrrolidone has a molecular weight of from about 10,000 to about 360,000.
Claim 2
Dependent Claim 62 words
A composition useful for forming water-soluble film comprising: wherein said polyvinyl alcohol is a hydrolyzed polyvinyl acetate having about 75-99 mole percent of the acetate groups replaced by hydroxyl groups, about 1-40% by weight residual acetate, and a molecular weight from about 2000 to about 20,000, and wherein said polyvinyl pyrrolidone has a molecular weight of from about 10,000 to about 360,000.
Claim 3
Dependent Claim 25 words
A composition according to Claim 1 wherein said polyvinyl alcohol is present in the composition from about 50.0 to 65.0% by weight of the composition.
Claim 4
Dependent Claim 23 words
A composition according to Claim 2 wherein said polyvinyl alcohol is present at from about 61.0 to 67.0% by weight of the composition.
Claim 5
Dependent Claim 25 words
A composition according to any -of Claims 1 to 3 wherein said polyvinyl pyrrolidone has a molecular weight of from about 10,000 to about 40,000.
Claim 6
Dependent Claim 30 words
A composition according to any of Claims 1 to 4 wherein said polyvinyl pyrrolidone is present in the composition at from about 15.0 to 28.0% by weight of the composition.
Claim 7
Dependent Claim 47 words
A composition according to any of Claims 1 to 5 wherein said ethoxylated alkylphenol surfactant is present in the composition at from about 8.0 to about 15.0% by weight and wherein said polyhydric alcohol is present from about 8.0 to about 15.0% by weight of the composition.
Claim 8
Dependent Claim 17 words
A composition according to any of Claims 1 to 6 wherein said polyhydric alcohol is propylene glycol.
Claim 9
Dependent Claim 7 words
A composition according to Claim 1 comprising:
Claim 10
Dependent Claim 7 words
A composition according to Claim 1 comprising:
Claim 11
Dependent Claim 17 words
A composition according to either of Claims 8 and 9 wherein the alkylene glycol is propylene glycol.
Claim 12
Dependent Claim 41 words
A composition according to any of Claims 8-10 wherein the polyvinyl alcohol has an average molecular weight of from about 10,000 to about 14,000 and wherein the polyvinyl pyrrolidone has an average molecular weight of from about 10,000 to about 40,000.
Claim 13
Dependent Claim 12 words
A composition according to Claim 1 in the form of a film.
Claim 14
Dependent Claim 10 words
A bag made from a film according to Claim 12.
Claim 15
Dependent Claim 12 words
A bag according to Claim 13 containing a powder or granule material.

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