Patent ID: 6831119
Filing Date: 2004-12-14
Classification: C08K,C08L

Abstract:
An additive for use in making a rubber elastomer, the additive comprising:at least 20% by weight and up to about 29% by weight of gray slate flour; at least 18% by weight and up to about 28% by weight of corn starch; at least 4% by weight and up to about 8% by weight of liquid polyester; at least 10% by weight and up to about 20% by weight of calcium carbonate; and at least 8% by weight and up to about 15% by weight of silica gel; wherein the aggregate amount of the gray slate flour, cornstarch, liquid polyester, calcium carbonate and silica gel totals 100%; and wherein the additive is combined with a rubber elastomer to create a rubber elastomer composition.