Spherical curing agent for epoxy resin, curing agent masterbatch

Details Spherical curing agent for epoxy resin, curing agent masterbatch Spherical curing agent for epoxy resin, curing agent masterbatch

1995-06-07

1996-10-22

Marquis, Melvyn I.

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

Synthetic resins

From reactant having at least one -n=c=x group as well as...

528 73, 528 87, 528 94, 528103, 528111, 525452, 525524, 525526, 525528, C08G 1808, C08F28300

Patent

active

055677924

ABSTRACT:
A curing agent for epoxy resins is prepared from an amine and an epoxy, as well as subsequent modification by a polyisocyanate compound, in such a manner that the curing agent is in the form of small spherical particles. The particles can be as small as 0.1 microns. This curing agent can be easily dispersed in curing agent masterbatches and curable compositions with minimal effect on their storage stability. The resulting curable compositions have a wide range of applications, including automobile and electronic adhesives.

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Journal of Applied Polymer Science, vol. 32, 5095-5104 (1986)--"Reactivity of Epoxy Resin in Dispersed Dicyandiamide System and Dynamic Viscoelasticity of the Resulting Product"--Souichi Muroi et al.

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