EP0417828A1
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Composition containing a polymer of unsaturated hydrocarbon and a starch derivative
Assignee: Cargill BV
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Filing: 1990-08-28
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Granted: —
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Expires: 2010-08-28
Abstract
Abstract A composition is provided containing a polymer of unsaturated hydrocarbon , a C₁₋₄ alkyl or hydroxyalkyl ether of starch having a degree of substitution of at least 0.25 for improving the biodegradability, and a vinyl or acryl copolymer as compatibility inducing agent. Preferably, the composition also contains a lubricant or plasticizer of the carboxylic acid type for the polymer.
Inventors
- 👤 Jan Prof. Drs. Bussink
- 👤 Anton Leendert Prof. Dr. Ir. German
- 👤 Henricus Eduard Hubertus Prof. Dr. Ir. Meijer
- 👤 Rita Maria Ing. Delrue
- 👤 Antonius Hendrik Drs. Zijderveld
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-01 14:49
CPC Classifications
C; C08; C08L; C08L3/00; C08L3/04; C08L3/08; C08L23/00; C08L23/02; C08L23/04; C08L23/08; C08L23/0807; C08L23/0815; C08L2205/00; C08L2205/08; C08L23/06; C08L23/0846; C08L23/0853; C08L23/0869; C08L3/10
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
54 words
Composition containing a polymer of unsaturated hydrocarbon and a starch derivative for improving the biodegradability, characterized in that the composition contains as the starch derivative a C₁₋₄ alkyl or hydroxyalkyl ether of starch having a degree of substitution of at least 0.25, and furthermore a vinyl or acryl copolymer as a compatibility inducing agent.
Claim 2
Dependent Claim
54 words
Composition containing a polymer of unsaturated hydrocarbon and a starch derivative for improving the biodegradability, characterized in that the composition contains as the starch derivative a C₁₋₄ alkyl or hydroxyalkyl ether of starch having a degree of substitution of at least 0.25, and furthermore a vinyl or acryl copolymer as a compatibility inducing agent.
Claim 3
Dependent Claim
22 words
Composition according to claim 1, characterized in that it contains as the starch derivative a condensation product of starch with propylene oxide.
Claim 4
Dependent Claim
20 words
Composition according to claim 1 or 2, characterized in that the starch derivative has a degree of substitution of 0.4-1.0.
Claim 5
Dependent Claim
23 words
Composition according to claims 1-3, characterized in that it also contains a lubricant or plasticizer of the carboxylic acid type for the polymer.
Claim 6
Dependent Claim
19 words
Composition according to claims 1-4, characterized in that the compatibility inducing agent is a copolymer of ethylene and vinylacetate.
Claim 7
Dependent Claim
20 words
Composition according to claims 1-4, characterized in that the compatibility inducing agent is a copolymer of ethylene and acrylic acid.
Claim 8
Dependent Claim
43 words
Composition according to claims 1-6, characterized in that the composition contains 20-80 weight % of polymer of unsaturated hydrocarbon, 30-90 weight % of the starch derivative, 11-19 weight % of the compatibility inducing agent and 0-8 weight % of the lubricant or plasticizer.
References Cited (Backward Citations)
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