Polysaccharide-elastomer masterbatch compositions
AssigneeNutrition & Biosciences USA 4, Inc.
InventorsNatnael Behabtu, Jeffrey S. Downey, Christian Peter Lenges, Tizazu H. Mekonnen
Life of this patent
Estimating the term…
Abstract
Disclosed herein are polysaccharide-elastomer masterbatch compositions and processes for preparing the masterbatch compositions. One method comprises a step of a) mixing i) an aqueous polysaccharide dispersion, or ii) a basic aqueous polysaccharide solution, with a rubber latex solution containing a rubber component to form a mixture. The method further comprises the steps of: b) coagulating the mixture obtained in step a) to produce a coagulated mass; and c) drying the coagulated mass obtained in step b). The masterbatch compositions are useful in preparing rubber-containing articles.
Claims20
A composition comprising rubber and
- (i) poly alpha-1,3-glucan, wherein the percentage of glycosidic linkages of the poly alpha-1,3-glucan that are alpha-1,3 is greater than or equal to 50%, or
- (ii) a poly alpha-1,3-glucan ester compound represented by Structure I:
- wherein
- (A) n is at least 6,
- (B) each R is independently an —H or a first group comprising —CO—Cx—COOH, wherein the —Cx— portion of said first group comprises a chain of 2 to 18 carbon atoms,
- (C) the poly alpha-1,3-glucan ester compound has a degree of substitution with the first group of about 0.001 to about 3.0, and
- (D) the percentage of glycosidic linkages of the poly alpha-1,3-glucan ester compound that are alpha-1,3 is greater than or equal to 50%;
- wherein the rubber comprises at least one diene-based sulfur-vulcanizable or peroxide-vulcanizable elastomer.
Dependencies are inferred from the claim text.