E. I. du Pont de Nemours and Company
RUBBER COMPOSITIONS COMPRISING POLYSACCHARIDES

Abstract:

Compositions are disclosed herein comprising a rubber component and a polysaccharide, wherein the polysaccharide comprises i) poly alpha-1,3-glucan; ii) poly alpha-1,3-1,6-glucan; iii) water insoluble alpha-(1,3-glucan) polymer having 90% or greater .alpha.-1,3-glycosidic linkages, less than 1% by weight of alpha-1,3,6-glycosidic branch points, and a number average degree of polymerization in the range of from 55 to 10,000; iv) dextran; v) a composition comprising poly alpha-1,3-glucan ester compounds as disclosed herein; or vi) water-insoluble cellulose having a weight-average degree of polymerization (DPw) of about 10 to about 1000 and a cellulose II crystal structure. The compositions can be used in articles such as a tire, a belt, a seal, footwear, a coating, a film, or an adhesive.