Polymers for reversible photoinduced sol gel transitions

Details Polymers for reversible photoinduced sol gel transitions Polymers for reversible photoinduced sol gel transitions

1995-12-12

1999-11-23

Codd, Bernard

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

Synthetic resins

Compositions to be polymerized by wave energy wherein said...

522162, 522178, 522183, 526320, C08J 324

Patent

active

059901934

ABSTRACT:
The present invention provides crosslinked polymeric networks that are reversibly crosslinked upon exposure to light of a suitable wavelength. In one embodiment photocrosslinkable branched hydrophilic polymers containing photochromic groups are synthesized. Cinnamylidene groups and derivatives of cinnamylidene are preferably used as the photochromic agents or photocrosslinking agents.

REFERENCES:
patent: 3257664 (1966-06-01), Leubner et al.
patent: 3761280 (1973-09-01), Wolff et al.
patent: 3933885 (1976-01-01), Satomura
patent: 4065430 (1977-12-01), Satomura
English Translation of Nakanishi et al., JP 53-69208, Apr. 1983.

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