C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
402/272, 402/44
C08G 59/44 (2006.01) C08G 59/40 (2006.01) C08G 59/62 (2006.01) C08G 59/68 (2006.01)
Patent
CA 1209297
HEAT-CURABLE EPOXIDE RESIN COMPOSITIONS ABSTRACT OF THE DISCLOSURE Epoxide resins are cured by heating with a hydroxyphenyl- urea of formula Image where R2 denotes -NH2, -NO2, -Cl, -Br, or alkyl, p denotes zero, x and y each denote zero or 1, and the sum of x + y is 1. Such hydroxyphenylureas may be used alone, as accelerators for heat- curing with other agents such as dicyandiamide, melamine, and carboxylic acid hydrazides, or may be used as the primary curing agent with promoters such as dicyandiamide, melamine, and carboxylic hydrazides.
438618
Ciba Specialty Chemicals Holding Inc.
Fetherstonhaugh & Co.
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