Stabilizer formulation for thermoplastic polymers

Details Stabilizer formulation for thermoplastic polymers Stabilizer formulation for thermoplastic polymers

1997-12-04

2000-06-20

Sanders, Kriellion

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524148, 524153, 524236, 524400, C08K 534, C08K 551, C08K 517, C08K 504

Patent

active

060778903

ABSTRACT:
A stabilizer formulation particularly well suited for improving the properties of thermoplastic polymers is disclosed. The stabilizer formulation contains a combination of stabilizers that improves the process stability of a polymer, prevents the polymer from yellowing, increases the thermal aging stability of the polymer and inhibits the polymer from generating smoke during melt processing. Of particular advantage, the stabilizer formulation improves the stability of a polymer without significantly adversely affecting any other properties of the polymer. In one embodiment, the stabilizer formulation includes a hindered amine, a hydroxyl amine, and one or more hydrolytically resistant phosphites. In one embodiment, the formulation can further contain an acid scavenger for preventing an acid contained within the polymer or produced during processing from harming the polymer.

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