Preparation of high purity polymers of tetrahydrofuran

Details Preparation of high purity polymers of tetrahydrofuran Preparation of high purity polymers of tetrahydrofuran

1990-10-01

1992-05-12

Kight, III, John

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

Synthetic resins

Treating polymer containing material or treating a solid...

528408, C08G 6520

Patent

active

051129434

ABSTRACT:
A process is described for the preparation of high purity polymers or copolymers obtained by cationic polymerization of tetrahydrofuran and, if desired, alkylene oxide, in which hydrogen having a bubble diameter of less than 50 .mu.m is passed into the polymers in the presence of a hydrogenation catalyst.

REFERENCES:
patent: 2751419 (1956-06-01), Hill, Jr. et al.
patent: 3935252 (1976-07-01), Tomomatsu
patent: 4189566 (1980-02-01), Mueller et al.
patent: 4243799 (1981-01-01), Mueller et al.
patent: 4480124 (1984-10-01), Mueller
patent: 4803299 (1989-02-01), Mueller
patent: 4952673 (1990-08-01), Mueller

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