Patent ID: 6133390
Filing Date: 2000-10-17
Classification: C08F,C09K

Abstract:
A photo recording polymer comprising polymethacrylate, and having the following general formula; ##STR8## 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,wherein R.sub.1 is an electron acceptor, selected from the group consisting of cyano, alkoxy having 1 to 8 carbon atoms, halosubstituted alkoxy having 1 to 8 carbon atoms, F, Cl, hydroxy, esters of the formula--OOC--C.sub.n H.sub.2n-1, --CO--C.sub.n H.sub.2n-1, wherein n is 1 to 8, H,X is selected from the group consisting of --O--, and --COO--,Z is selected from the group consiting of --N.dbd.N--, --CH.dbd.N--, or --CH.dbd.CH--, wherein --CH.dbd. of the --CH.dbd.N-- group is bound to the main part of the structure,R.sub.2 is C.sub.m H.sub.2m+1, wherein m is an integer 4 to 7,o is a number of 7 to 12, anda is number providing for a photo chromic polymer.