Patent ID: 8071519
Filing Date: 2011-12-06
Classification: C08K,C08L,G02B

Abstract:
1. A composition comprising a blend of first and second esters, the first ester comprising a reaction product of first reactants comprising trimer acid derived from tall oil fatty acids or reactive equivalent thereof, first polyhydric alcohol or reactive equivalent thereof, and first monohydric alcohol or reactive equivalent thereof; the first monohydric alcohol being selected from the group of C.sub.8-18 monohydric alcohols or reactive equivalents thereof; the second ester comprising a reaction product of second reactants comprising trimer acid derived from tall oil fatty acids or reactive equivalent thereof, second polyhydric alcohol or reactive equivalent thereof, and second monohydric alcohol or reactive equivalent thereof; the second monohydric alcohol being selected from the group of C.sub.6-10 monohydric alcohols or reactive equivalents thereof; the first and second monohydric alcohols being non-identical; wherein the first reactants are heated to a temperature of about 200° C. to about 250° C. and maintained at that temperature from about 5½ hours to 13 hours under vacuum as required to maintain reflux, wherein thereafter the resulting first reaction mixture is optionally subjected to a vacuum of about 20-200 mm for removal of volatile materials, and wherein thereafter the temperature of the resulting first reaction mixture is lowered to about 130° C., and wherein the second reactants are heated to a temperature of about 200° C. to about 250° C. and maintained at that temperature from about 5½ hours to 13 hours under vacuum as required to maintain reflux, wherein thereafter the resulting second reaction mixture is optionally subjected to vacuum of about 20-200 mm for removal of volatile materials, and wherein thereafter the temperature of the resulting second reaction mixture is lowered to about 130° C., wherein further the weight of a polypropylene sample increases less than about 5 wt. % through absorption of the composition following exposure of the polypropylene and the composition at a temperature of about 80° C. after a period of four weeks.