Method for making epoxy curing agents

Details Method for making epoxy curing agents Method for making epoxy curing agents

1985-11-14

1987-04-21

Bleutge, John C.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525509, 528164, 528262, 528263, C08G 828, C08L 6124, C08L 6134

Patent

active

046597875

ABSTRACT:
A new class of epoxy curing agents has been discovered that utilizes the monomer of (a) urea-formaldehyde, (b) phenol modified urea-formaldehyde, or (c) thiourea-formaldehyde as the center of a polyamine molecule. The ether monomers are reacted with conventional aliphatic, cycloaliphatic, and aromatic polyamines to split off alcohol and water-yielding urea-formaldehyde etc., polyamine epoxy curing agents.

REFERENCES:
patent: 3931110 (1976-01-01), Freeman et al.

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