Polyvinyl chloride resin composition having improved thermal sta

Details Polyvinyl chloride resin composition having improved thermal sta Polyvinyl chloride resin composition having improved thermal sta

1988-03-23

1989-12-05

Briggs, Sr., Wilbert J.

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524377, 524834, C08K 506, C08L 2706

Patent

active

048853330

ABSTRACT:
A polyvinyl chloride resin-based composition can be imparted with improved thermal stability of compounding the same with a polygylcerin in an amount of 0.01 to 0.5% by weight based on the resin even when the composition is compounded with a heat stabilizer having relatively low effectiveness although the use of such a heat stabilizer is desirable in respect of the physiological inertness. Similar improving effects on the thermal stability of a polyvinyl chloride resin-based composition can be obtained when the resin is prepared by suspension-polymerizing vinyl chloride monomer in an aqueous medium containing a polyglycerin.

REFERENCES:
patent: 4134868 (1979-01-01), Minagawa
patent: 4435524 (1984-03-01), Dinbergs

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