G - Physics – 03 – F
Patent
G - Physics
03
F
96/178, 96/256,
G03F 7/033 (2006.01) G03F 7/027 (2006.01)
Patent
CA 1213092
ABSTRACT OF THE DISCLOSURE A photopolymerizable composition comprised of an addi- tion polymerizable material, a photoinitiator, a thermal addition polymerization inhibitor and a polymeric binding agent. The addition polymerizable material is comprised of a defined mono- ethylenically unsaturated acrylate and one or more non-gaseous compounds having at least two terminal ethylenic groups. The photopolymerizable composition displays superior flexibility and develops and strips more efficiently when compared to a like composition but in the absence of the acrylate. The photopoly- merizable composition may be in the form of sheet or roll on a film support which can be laminated to a substrate and can be used in the preparation of printed circuit boards.
454898
Derrico Gene A.
Lipson Melvin A.
Tark Sung Y.
Yamazaki Toshio
Dynachem Corporation
Gowling Lafleur Henderson Llp
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