Film-forming polymerizable resin of benzophenone dianhydride, ep

Details Film-forming polymerizable resin of benzophenone dianhydride, ep Film-forming polymerizable resin of benzophenone dianhydride, ep

1979-03-22

1980-08-05

Lee, Lester L.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

20415911, 20415922, 260 37EP, 528112, 528220, C08G 5942

Patent

active

042163064

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 3,500.
The resulting film-forming resin can be pigmented and can be cured in the presence of ultraviolet radiation.

REFERENCES:
patent: 3362922 (1968-01-01), Manasia et al.
patent: 3388185 (1968-06-01), Goldberg et al.
patent: 3989573 (1976-11-01), Sanjana

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