Patent ID: 6063474
Filing Date: 2000-05-16
Classification: C08K,D01F,D04H,Y10T

Abstract:
An article comprising a material prepared by:forming a mixture of a polymer selected from the group consisting of polyolefin, polyamide, polyester, polyacrylate, and blends and copolymers thereof, and a fluorochemical composition comprising a fluorocarbon/hydrocarbon ester of the formulae:R.sub.f --O--C(O)--R.sub.1 or R.sub.f --C(O)--O--R.sub.1whereinR.sub.f is selected from the group consisting of:1) F(CF.sub.2).sub.x --(CH.sub.2).sub.m wherein x is from about 4 to about 20 and m is from about 0 to about 6; and2) F(CF.sub.2).sub.x --SO.sub.2 N(R.sub.2)--R.sub.3 wherein x is a positive integer from about 4 to about 20, R.sub.2 is an alkyl radical of from 1 to about 4 carbon atoms, and R.sub.3 is an alkylene radical of from 1 to about 12 carbon atoms; andR.sub.1 is an aliphatic linear hydrocarbon having an average of from 30 to about 50 carbon atoms;provided that said fluorochemical compound is other than perfluoroalkyethyl stearate;and melt extruding the mixture,said article having repellency to fluids having a surface tension of less than 50 dynes/cm, andsaid article in a form selected from the group consisting of a filament, fiber, nonwoven web, nonwoven fabric, film and molded article.