Stabilization of halopolymers with ionomers

Details Stabilization of halopolymers with ionomers Stabilization of halopolymers with ionomers

1992-09-23

1994-07-12

Hoke, Veronica P.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

524101, 524128, 524151, 524302, 524399, 524400, 524482, C08K 509, C08K 542, C08K 53415

Patent

active

053289480

ABSTRACT:
A composition comprising a halopolymer, such as an ethylene/chlorotrifluoroethylene copolymer, an effective stabilizing amount of an ionomer, and an effective stabilizing amount of a compound such as a phosphite of an organic polyhydric phenol; a thioester; a phosphite; or a hindered phenolic antioxidant. Preferred ionomers are metal salts of ethylene-acrylic acid copolymers, and metal salts of sulfonated polystyrenes. The stabilized halopolymers have improved resistance to thermal degradation and suffer less discoloration when subjected to high melt processing or extrusion molding temperatures.

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