Process for producing copolymer having carbonate linkages

Details Process for producing copolymer having carbonate linkages Process for producing copolymer having carbonate linkages

1976-11-11

1979-09-04

Briggs, Sr., Wilbert J.

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

Synthetic resins

From heterocyclic reactant containing as ring atoms oxygen,...

528413, C08G 6362, C08G 6526

Patent

active

041668987

ABSTRACT:
A copolymer having carbonate linkages is produced by copolymerizing an epoxy compound with carbon dioxide in the presence of an isoprene-magnesium complex compound or a reaction mixture of said complex compound with an active hydrogen compound as a catalyst. The catalyst has a much improved polymerization activity when treated with carbon dioxide in advance.

REFERENCES:
patent: 3585168 (1971-06-01), Inoue et al.
patent: 3706809 (1972-12-01), Moroe et al.
patent: 3953383 (1976-04-01), Inoue et al.

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