Alkaline modified pentaerythritol stabilizer for vinyl chloride

Details Alkaline modified pentaerythritol stabilizer for vinyl chloride Alkaline modified pentaerythritol stabilizer for vinyl chloride

1983-10-20

1985-02-26

Welsh, Maurice 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...

252182, 524377, 524399, 524400, 568679, 568680, 568853, C08L 2706

Patent

active

045018405

ABSTRACT:
Pentaerythritol is treated at a temperature of about 180.degree. to 220.degree. C. with a strongly alkaline acting material, e.g. calcium oxide. The thus treated pentaerythritol serves as a costabilizer e.g., with the salt of a polyvalent metal and a carboxylic acid, for a vinyl chloride resin, e.g. polyvinyl chloride and has outstanding properties as such.

REFERENCES:
patent: 2564646 (1951-08-01), Liestner
patent: 3004000 (1961-10-01), Kauder
patent: 3142659 (1964-07-01), Buckley
Berlow et al., The Pentaerythritols, Reinhold, NY, 1958, p. 50.

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