Polyiminocarbonate synthesis

Details Polyiminocarbonate synthesis Polyiminocarbonate synthesis

1990-07-13

1992-08-18

Anderson, Harold D.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528172, 528174, 528206, 528207, 528208, C08G 7300, C08G 6540

Patent

active

051400944

ABSTRACT:
Novel polyiminocarbonates having molecular weights exceeding 70,000 daltons. Novel solution polymerization and interfacial polymerization processes for the preparation of polyiminocarbonates in which cyanate compounds are reacted with diphenol compounds in the presence of a strong base catalyst.

REFERENCES:
patent: 3755402 (1973-08-01), Grigat et al.
patent: 4980449 (1990-12-01), Kohn et al.
Macromolecules, 22, 2029 (1989).

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