Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Compositions to be polymerized by wave energy wherein said...
Patent
1998-11-03
2000-10-03
Berman, Susan W.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Compositions to be polymerized by wave energy wherein said...
522 38, 522 39, 522 45, 522 66, 522 79, 522 81, 522173, 522908, 4302701, 4302801, 4302811, 4302861, 523160, 568330, 568331, C08F 250, C08F 442, C08F 2034, C09J 404, G03C 164
Patent
active
061274453
ABSTRACT:
The present invention relates to anionic photoinitiator compounds, compositions containing them, and methods of using them having the structure: ##STR1## wherein X and Y are independently selected from the group consisting of a direct single bond and --C(.dbd.O)--, wherein at least one of X and Y is --C(.dbd.O)--;
R.sup.1 and R.sup.2 are independently selected from the group consisting of H and substituted phenyl, wherein both R.sup.1 and R.sup.2 are not H;
and wherein neither --X--R.sup.1 nor --Y--R.sup.2 is --C(.dbd.O)H. The anionic photoinitiators have improved storage stability, without loss of photosensitivity, even when stored with polymerizable or crosslinkable monomer, oligomer, or crosslinkable polymer species.
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Benyei, Attila et al.
Kutal Charles R.
Yamaguchi Yoshikazu
Berman Susan W.
Gray Bruce D.
Pratt John S.
The University of Georgia Research Foundation Inc.
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