Polymeric carbonate diols of copolyether glycols and polyurethan

Details Polymeric carbonate diols of copolyether glycols and polyurethan Polymeric carbonate diols of copolyether glycols and polyurethan

1983-01-24

1984-10-09

Pertilla, Theodore E.

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

Synthetic resins

From reactant having at least one -n=c=x group as well as...

260463, 525467, 528 78, 528372, C08G 1844, C08G 1848

Patent

active

044762933

ABSTRACT:
Polymeric carbonate diols are prepared by coupling segments of copolyether glycols with a dialkyl carbonate, with a cyclic carbonate, or with phosgene.
The carbonate diols are useful in preparing polyurethanes.

REFERENCES:
patent: 3544524 (1970-12-01), Muller et al.
patent: 4131731 (1978-12-01), Lai et al.
patent: 4217437 (1980-08-01), Schreckenberg et al.
patent: 4251654 (1981-02-01), Robinson et al.
patent: 4264752 (1981-04-01), Watson, Jr.
W. H. Carothers and F. J. Van Natta, J.A.C.S., 52, (1930), pp. 314-326.

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