Patent ID: 6642310
Filing Date: 2003-11-04
Classification: C08F,C08J,C08L

Abstract:
An extrudable composition for passing through a die at an extrusion temperature, said composition comprising:A) a non-fluorinated melt processable polymer; B) 25 to 2000 parts per million by weight, based on total weight of the extrudable composition, of a fluoropolymer, said fluoropolymer having a weight average particle size greater than 2 microns and less than 10 microns, as measured at a point immediately preceding the die; and C) at least an effective amount of interfacial agent to achieve a fluoropolymer weight average particle size greater than 2 microns and less than 10 microns as measured at a point immediately preceding the die, but no more than a 5:1 weight ratio of interfacial agent to fluoropolymer, said interfacial agent being chemically distinct from both said non-fluorinated melt processable polymer and said fluoropolymer, and said interfacial agent having a melting point less than said extrusion temperature.