Block polymers of poly(tetramethylene oxide) and tetrahydrofuran

Details Block polymers of poly(tetramethylene oxide) and tetrahydrofuran Block polymers of poly(tetramethylene oxide) and tetrahydrofuran

1978-08-21

1980-07-08

Welsh, Maurice J.

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

Synthetic resins

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

528405, C08L 3700

Patent

active

042118549

ABSTRACT:
Block polymers containing poly(tetramethylene oxide) as one of their constituent blocks and a random copolymer of tetrahydrofuran and one or more alkylene oxides as one or more of the other constituent blocks are useful in preparing polyurethanes and polyesters.

REFERENCES:
patent: 3644567 (1972-02-01), Smith et al.
Noshay et al., Block Copolymers, Overview & Critical Survey, Academic Press, 1977, pp. 299-300.

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