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US 2014/0232043 A1Published application
Composition of Polymers Derived from Renewable Resources
AssigneeFuterro S.A.
InventorThierry Coupin
Life of this patent
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Abstract
The present invention relates to a polymer composition comprising polylactide and, based on the weight of this polymer, from 17 to 25 wt % of a chain modifier, from 30 to 55 wt % of an elastomeric polymer and from 20 to 45 wt % of a plasticizer. The invention also relates to the method of preparing said composition as well as to the method of manufacturing an article starting from said composition and the article per se.
Claims21
1-12. (canceled)
A method of preparing a composition comprising:
- mixing in the molten state:
- a polylactide;
- from 17 to 25 wt % of a chain modifier based on a weight of the polylactide, wherein the chain modifier is selected from copolymers and terpolymers comprising ethylene or styrene and an unsaturated monomer bearing at least one epoxide or carboxylic acid or carboxylic acid anhydride fraction and optionally a (meth)acrylate fraction;
- from 30 to 55 wt % of an elastomeric polymer based on the weight of the polylactide, wherein the elastomeric polymer is selected from biodegradable polyesters, aliphatic copolyesters, aromatic copolyesters and mixtures thereof;
- and
- from 20 to 45 wt % of a plasticizer based on the weight of the polylactide.
3 more elements
A method of manufacturing an article comprising:
- transforming a composition by moulding by extrusion, injection, compression, or thermoforming;
- wherein the composition comprises:
- a polylactide;
- from 17 to 25 wt % of a chain modifier based on a weight of the polylactide, wherein the chain modifier is selected from copolymers and terpolymers comprising ethylene or styrene and an unsaturated monomer bearing at least one epoxide or carboxylic acid or carboxylic acid anhydride fraction and optionally a (meth)acrylate fraction;
- from 30 to 55 wt % of an elastomeric polymer based on the weight of the polylactide, wherein the elastomeric polymer is selected from biodegradable polyesters, aliphatic copolyesters, aromatic copolyesters and mixtures thereof;
- and
- from 20 to 45 wt % of a plasticizer based on the weight of the polylactide.
4 more elements
Dependencies are inferred from the claim text.