3,3-Carbonylbis(carbazates) as blowing agents

Details 3,3-Carbonylbis(carbazates) as blowing agents 3,3-Carbonylbis(carbazates) as blowing agents

1978-05-22

1979-10-02

Foelak, Morton

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acid esters

521 95, 521137, 521158, 521180, 521182, 521189, 560137, C08J 910

Patent

active

041699548

ABSTRACT:
Novel blowing agents are disclosed comprising 3,3'-carbonylbis(organo carbazates). The organo group may be alkyl, cycloalkyl, aryl or aralkyl moieties. In the preferred embodiment the organo group is an alkyl group selected from the group consisting of methyl, isopropyl, secondary butyl or tertiary butyl. The blowing agents find utility in the preparation of expanded organoplastic materials such as rubbers, thermosetting resins and thermoplastic resins.

REFERENCES:
patent: 3873592 (1975-03-01), Hunter
patent: 3925270 (1975-12-01), Hunter
Journal of Indian Chem. Soc. 10, pp. 685-692 (1933).

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