Patent ID: 6312822
Filing Date: 2001-11-06
Classification: C08K,C08L,D21H,G03C,Y10T

Abstract:
A thermoplastic composition comprising a polyolefin selected from the group consisting of homopolymers and copolymers of: polyethylene, polypropylene, and polybutylene; an optical brightener; and from about 0.5 weight percent to about 20 weight percent of a polar additive selected from the group consisting of polymeric esters, oligomeric esters, polyamides, fatty acids amides of aliphatic amines and diamines, copolymers of poly(ethylene-coacrylic acid), esters of poly(alkylene glycols) and mixtures thereof to reduce exudation of said optical brightener from said polyolefin and wherein the amount of polar additive is based on the total weight of said polar additive and said polyolefin.