Film-forming polymerizable resin of bezophenone dianhydride,...

Details Film-forming polymerizable resin of bezophenone dianhydride,... Film-forming polymerizable resin of bezophenone dianhydride,...

C - Chemistry, Metallurgy

08

G

402/284, 402/33

C08G 59/42 (2006.01) C09D 163/10 (2006.01) G03F 7/038 (2006.01)

Patent

CA 1157599

ABSTRACT A film-forming polymerizable resin is produced from combining acrylic acid, the diglycidyl ether of N-butyl diol and 3,3',4,4'-benzophenone tetracarboxylic dianhydride (BTDA). The diglycidyl ether of N-butyl diol is combined with BTDA and sufficient acrylic acid to combine with unreacted epoxide groups. The BTDA constitutes 2 to 10 percent by weight of the three ingredients. The ingredients are heated to a low acid number where the epoxy equivalent of the mixture is greater than 3500. The resulting film- forming resin can be pigmented and can be cured in the presence of ultraviolet radiation.

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