Polyether carbonate diols and polyurethanes prepared therefrom

Details Polyether carbonate diols and polyurethanes prepared therefrom Polyether carbonate diols and polyurethanes prepared therefrom

1983-01-24

1984-07-31

Pertilla, Theodore E.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

260463, 525460, 528 76, 528370, 528372, C08L 7508, C08G 7104

Patent

active

044631413

ABSTRACT:
Polyether carbonate diols are prepared by coupling segments of a poly(tetramethylene ether) glycol with a dialkyl carbonate, 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: 4264752 (1981-04-01), Watson, Jr.
W. H. Carothers 2nd F. J. Van Natta, J.A.C.S. 52 (1930) pp. 314-326.

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