Polymer stabilizing compositions

Details Polymer stabilizing compositions Polymer stabilizing compositions

1987-12-17

1992-11-10

Morgan, Kriellion S.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524126, 524343, C08K 550, C08K 553

Patent

active

051624060

ABSTRACT:
A stabilized composition of matter comprises: (a) at least one block polymer comprising at least one non-elastomeric block and at least one polybutadiene block and (b) a stabilizing composition in an amount effective to improve heat or oxidative stability of the block polymer, said composition comprising (i) at least one hydroxyphenylalkylenyl isocyanurate and (ii) at least one polyphenylene diphosphonite. An alkylidene bisphenol is optionally added to achieve improved color stability.

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