Stabilization and foaming of polyvinylchloride resins

Details Stabilization and foaming of polyvinylchloride resins Stabilization and foaming of polyvinylchloride resins

1990-08-08

1991-10-08

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521 89, 521 93, 521145, 524140, 524156, 524184, 524186, 524261, 524301, 524327, C08V 910

Patent

active

050554956

ABSTRACT:
An improvement in the method for the foaming of polyvinylchloride resins by the use of a blowing agent and an activator therefor which uses as the activator a mixture of at least one organotin mercapto acid ester and a diorganotin oxide complex with an ester of an oxygen-containing acid.

REFERENCES:
patent: 2597920 (1952-05-01), Carroll
patent: 2641596 (1953-06-01), Feister et al.
patent: 2648650 (1953-08-01), Weinberg et al.
patent: 2763632 (1956-09-01), Johnson
patent: 2914506 (1959-11-01), Mock et al.
patent: 3640953 (1972-02-01), Brecker et al.
patent: 3706679 (1972-12-01), Hopton
patent: 4698368 (1987-10-01), Muller
patent: 4977193 (1990-12-01), Croce et al.

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