One pack type alicyclic epoxy resin compositions

Details One pack type alicyclic epoxy resin compositions One pack type alicyclic epoxy resin compositions

1986-01-23

1987-08-25

Nielsen, Earl

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528111, 528117, 528337, 528341, 528361, 528365, 528407, C08G 5960, C08G 5964

Patent

active

046893881

ABSTRACT:
A curable epoxy resin composition, comprising (1) an alicyclic epoxy resin having an average of more than one epoxy group per molecule, (2) a polybasic acid hydrazide, and (3) a latent curing agent for said epoxy resin which comprises an addition product obtained by reacting (a) a polyfunctional epoxy compound with (b) a compound having at least one functional group in the molecule selected from the group consisting of OH, SH, COOH and CONHNH.sub.2 together with a tertiary amino group, or by reacting said components (a) and (b) with (c) an organic compound which has more than two active hydrogen atoms in the molecule, said reactions occurring under conditions in which the ratio of (a) to (b) or (a) to (b) and (c) ranges from 0.8 to 2.5 equivalents of (a) per equivalent of the total active hydrogen atoms in component (b) and in components (b) and (c), the molar ratio of (c) to (b) being 0.2:1 to 1:1, and said addition product having a softening point of 60.degree. to 180.degree. C.

REFERENCES:
patent: 4268656 (1981-05-01), Ray-Chaudhuri et al.
patent: 4542202 (1985-09-01), Takeuchi et al.
patent: 4546155 (1985-10-01), Hirose et al.
patent: 4585698 (1986-04-01), Anzai et al.

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