Process for stretching a swollen flexible-chain polymer

Details Process for stretching a swollen flexible-chain polymer Process for stretching a swollen flexible-chain polymer

1992-08-31

1994-05-10

Michl, Paul R.

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

Synthetic resins

Treating polymer containing material or treating a solid...

264164, 264181, 264197, 2642107, C08F 600

Patent

active

053108663

ABSTRACT:
Process for stretching an article substantially consisting of a flexible-chain polymer, which is swollen in a solvent for that polymer, in which process an article substantially consisting of a copolymer of the polymer with a second polymer is swollen in a selective solvent for the flexible-chain polymer, and stretched, and an article containing an oriented flexible-chain polymer with a dichroic ratio of at least 1.1.

REFERENCES:
patent: 4329874 (1983-04-01), Stoy
patent: 4416946 (1983-11-01), Bolt
patent: 4806579 (1989-02-01), Calvert et al.

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