Polymerisable photochromic naphthacenediones, polymers of these

Details Polymerisable photochromic naphthacenediones, polymers of these Polymerisable photochromic naphthacenediones, polymers of these

1995-08-02

1997-04-22

Hamilton, III, Thomas

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

427553, 430541, C08F 1232, C08F11232

Patent

active

056230400

ABSTRACT:
Compounds of formulae I and II ##STR1## wherein R is phenyl and R.sub.1 to R.sub.4 are H or a substituent such as phenylthio, and one of the substituents R.sub.1, R.sub.2, R.sub.3 and R.sub.4 is a group of formula III

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Delzenne, Adv. Photochem., vol. 11, (1979) pp. 1-103.

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