Patent ID: 6858290
Filing Date: 2005-02-22
Classification: B29C,B29K,B32B,Y10T

Abstract:
1. A microporous article comprising: (a) a crystallizable olefin polymer component; and (b) a fluorochemical additive, which is the reaction product of one or more polyfunctional compounds having reactive hydroxy and/or acyl functional groups, and having from 3 to 12 carbon atoms; with one or more monofunctional fluorochemical compounds of the formula wherein R f is a fluoroalkyl group having 3 to 12 carbon atoms, Q is a divalent linking group, and Z is a co-reactive hydroxyl group or acyl group that reacts with the corresponding reactive group of said polyfunctional compound; and one or more aliphatic monofunctional compounds of the formula wherein R h is an aliphatic group having from 12 to 72 carbon atoms, and Z is a co-reactive hydroxyl group or acyl group that reacts with the corresponding reactive group of said polyfunctional compound.