Polymeric materials

Details Polymeric materials Polymeric materials

1998-04-21

2000-10-17

Lipman, Bernard

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526298, 526312, 526325, 5263292, 5263295, C08F12802

Patent

active

061333905

ABSTRACT:
The present invention relates to a photochromic polymer for photo recording purposes comprising polymethacrylate, and having the following general formula: ##STR1## wherein R is --(CH.sub.2).sub.o --X--C.sub.6 H.sub.4 --Z--C.sub.6 H.sub.4 --R.sub.1,

REFERENCES:
patent: 4631328 (1986-12-01), Ringsdorf et al.
patent: 4925589 (1990-05-01), Lorenz
patent: 4962160 (1990-10-01), DeMartino et al.
patent: 5310837 (1994-05-01), May
patent: 5543267 (1996-08-01), Stumpe et al.
patent: 5641846 (1997-06-01), Bieringer et al.

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