Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1995-06-07
1996-10-01
Marquis, Melvyn I.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525526, 525540, 528 87, 528 94, 528103, 528111, 528117, 528118, C08F28300
Patent
active
055612040
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.
Muroi Souichi
Tsai Hsi-Chuan
Gulakowski Randy
Looper Valerie E.
Marquis Melvyn I.
W. R. Grace & Co.,-Conn.
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