Patent ID: 7001951
Filing Date: 2006-02-21
Classification: C08F,C08J,C08L

Abstract:
1. A process aid composition for use in an extrudable non-fluorinated melt processable polymer at an extrusion temperature, said process aid composition comprising: A) at least 1 weight percent, based on total weight of said process aid composition, of a fluoroelastomer having a Mooney viscosity, measured per ASTM D1646 at 121° C., large rotor, condition ML 1+10 minutes, of 60 to 80; and B) at least 1 weight percent, based on total weight of said process aid composition, of an interfacial agent in an amount no more than a 5:1 weight ratio of interfacial agent to fluoroelastomer, said interfacial agent being a thermoplastic polymer chemically distinct from said fluoroelastomer and said interfacial agent having a melting point less than said extrusion temperature.