Stabilization of vinyl halide polymers

Details Stabilization of vinyl halide polymers Stabilization of vinyl halide polymers

2005-07-19

2005-07-19

Jagannathan, Vasu (Department: 1714)

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

Synthetic resins

Processes of preparing a desired or intentional composition...

C524S181000, C524S182000, C524S302000, C524S303000, C524S304000, C524S305000, C524S318000, C524S392000, C524S393000, C524S395000, C524S399000, C556S093000, C252S384000, C252S400100, C252S406000, C252S407000, C106S287190, C106S287230, C106S287240, C106S287270, C106S287320

Reexamination Certificate

active

06919392

ABSTRACT:
The heat and light stability imparted to vinyl halide polymers by metal compounds conventionally employed for this purpose is considerably improved by the presence of a mercapto ester such as 2-mercaptoethyl stearate. The esters can replace a substantial portion of the metal compound with no significant reduction in stability.

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