Curable compositions containing epoxy resins, polyvinyl...

Details Curable compositions containing epoxy resins, polyvinyl... Curable compositions containing epoxy resins, polyvinyl...

C - Chemistry, Metallurgy

08

L

400/5054, 402/1.

C08L 63/00 (2006.01) C08J 3/28 (2006.01) C08L 29/14 (2006.01) G03C 1/71 (1980.01)

Patent

CA 1114986

ABSTRACT OF THE DISCLOSURE Curable compositions are provided based on the use of an aromatic onium salt with a blend of epoxy resin and polyvinyl acetal resin. The curable compositions in the form of a cast film can be used directly as a dry film photoresist by being applied to a substrate, such as a copper clad laminate, and cured with ultraviolet light.

287740

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