Curable compositions which release imidazole upon irradiation

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...

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525481, 525484, 525504, 528 91, 528 94, 528327, 528341, 528361, 528365, 528367, 528407, 522 63, 522100, 522170, C08G 5944, C08G 5954

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056230230

ABSTRACT:
Disclosed is a curable composition comprising (A) an imidazole derivative represented by the following general formula (1), which is capable of generating free imidazole by exposure to light, and (B) a polyfunctional epoxy compound: ##STR1## wherein R represents a hydrogen atom, a halogen atom, an alkyl group, an aryl group, an aralkyl group, a nitro group, a cyano group, an alkoxyl group, a phenoxy group, or an aromatic ring residue capable of forming a condensed ring in combination with a benzene ring. The composition may further incorporate therein at least one compound selected from the group consisting of polyfunctional phenol compounds, polyfunctional carboxylic acids, acid anhydrides, and amine compounds.

REFERENCES:
patent: 4436892 (1984-03-01), Zondler et al.
Polymer Journal, vol. 26, No. 7, pp. 864-867, "Photogeneration of Polyfunctional Thiol and Thermal Curing Reaction of Epoxy Resins Using the Thiol" Feb. 1994.
Polymer Journal, vol. 25, No. 4, pp. 421-425, "Novel Thermal Curing Reactions of Epoxy Resin and Polyurethane Oligomers Using Photogenerated Polyfunctional Amines" Oct. 1993.
Nishikubo, Tadatomi, et al., "Photogeneration of Polyfunctional Amines and Novel Thermal Curing Reactions of Epoxy Resin and Polyurethane Oligomer Using These Amines", Journal of Polymer Science: Part A: Polymer Chemistry, vol. 31, 3013-3020 (1993).

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