Purification of copolymers of tetrahydrofuran and alkene oxides

Details Purification of copolymers of tetrahydrofuran and alkene oxides Purification of copolymers of tetrahydrofuran and alkene oxides

1988-08-01

1990-08-28

Nielsen, Earl

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

Synthetic resins

Treating polymer containing material or treating a solid...

528417, 568617, 568621, C08G 6520

Patent

active

049526731

ABSTRACT:
A process for the purification of the polyetherdiols obtained by copolymerization of tetrahydrofuran and 1-alkene oxides by catalytic hydrogenation at temperatures up to 250.degree. C.

REFERENCES:
patent: 4127513 (1978-11-01), Bellis
patent: 4228272 (1980-10-01), DelPesco
patent: 4251654 (1981-02-01), Robinson
patent: 4306058 (1981-12-01), Copelin
patent: 4480124 (1984-10-01), Mueller
patent: 4500705 (1985-02-01), Copelin
patent: 4564671 (1986-01-01), Mueller
patent: 4585592 (1986-04-01), Mueller

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