Patent ID: 8795745
Filing Date: 2014-08-05
Classification: C08G,C08K,C08L

Abstract:
1. An elastomeric composition comprising: at least 0.5% and at most 99.95% by weight of an acetate of a starchy material having a degree of substitution (DS) of esters between 2.6 and 3; and at least 0.05% by weight and at most 99.5% by weight of a polymer other than starch, wherein the elastomeric composition has a degree of biodegradability according to the ISO 14851 standard of less than 50%, and wherein the polymer other than starch is an elastomeric polymer selected from the group consisting of natural rubbers and derivatives thereof, polyisobutylenes, polyisoprenes, butadiene-styrene copolymers (SBR), butadiene-acrylonitrile copolymers, hydrogenated butadiene-acrylonitrile copolymers, acrylonitrile-styrene-acrylate copolymers (ASA), ethylene/methyl acrylate copolymers (EAM), thermoplastic polyurethanes (TPU) of ether or ester-ether type, polyethylenes or polypropylenes functionalized with silane, halogenated, acrylic or maleic anhydride units, EDM and EPDM, thermoplastic elastomers derived from polyolefins (TPO), styrene-butylene-styrene copolymers (SBS) and styrene-ethylene-butylene-styrene copolymers (SEBS) functionalized with maleic anhydride units, and any mixtures of these polymers.