Reaction of t-alkylhydrazinium salts and ogranic peroxides to fo

Details Reaction of t-alkylhydrazinium salts and ogranic peroxides to fo Reaction of t-alkylhydrazinium salts and ogranic peroxides to fo

1982-09-30

1983-07-12

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521 95, 521 96, 521124, 521125, 521138, 521140, C08J 910

Patent

active

043931480

ABSTRACT:
Low density foams are prepared from an admixture which comprises a medium which is polymerizable and/or crosslinkable by free radical initiation, a t-alkylhydrazinium salt blowing agent, a peroxide curing agent, a suitable surfactant, and at least one transition metal salt promoter wherein at least one of the metal salts is a compound of iron or copper. The t-alkylhydrazinium salt blowing agent in the presence of an effective amount of the transitional metal salt promoter improves the efficiency of the process.

REFERENCES:
patent: 3920589 (1975-11-01), Jacobs et al.
patent: 3920590 (1975-11-01), Jacobs et al.
patent: 3920591 (1975-11-01), Jacobs et al.
patent: 3993609 (1976-11-01), Kamens et al.
patent: 4029615 (1977-06-01), Kamens et al.
patent: 4101464 (1978-07-01), Kamens et al.
patent: 4322502 (1982-03-01), Stott et al.
patent: 4327196 (1982-04-01), West

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