Reaction of carbonylhydrazines and organic peroxides to foam uns

Details Reaction of carbonylhydrazines and organic peroxides to foam uns Reaction of carbonylhydrazines and organic peroxides to foam uns

1983-03-28

1984-03-06

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521 93, 521 95, 521 96, 521123, 521124, 521128, 521134, 521138, C08V 908, C08V 910

Patent

active

044355254

ABSTRACT:
Low density foams are prepared from an admixture which comprises a medium which is polymerizable and/or crosslinkable by free radical initiation, carbonylhydrazine 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 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.

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