Novolac based epoxy resin curing agents for use in solvent

Details Novolac based epoxy resin curing agents for use in solvent Novolac based epoxy resin curing agents for use in solvent

1984-09-20

1985-06-25

Schain, Howard E.

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

Synthetic resins

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

525481, 525504, 525510, 428413, 428416, C08L 6304

Patent

active

045255423

ABSTRACT:
The instant invention is an epoxy resin curing agent based upon an epoxy novolac containing, on the average, between about 3 and about 7.5 epoxy groups per molecule, in which substantially all of the epoxide groups are reacted with a polyamine wherein each primary amine hydrogen in the resulting reaction product is further reacted with a monoepoxide. The resulting epoxy resin curing agent may be used in a solvent based system to cure epoxy resins under low temperature curing conditions.

REFERENCES:
patent: 3474073 (1969-10-01), Higashi
patent: 3686101 (1972-08-01), Davis et al.
patent: 4021410 (1977-05-01), Koyama
patent: 4093594 (1978-06-01), Anderson
patent: 4116900 (1978-09-01), Belanger
patent: 4189539 (1980-02-01), Ward
patent: 4246148 (1981-01-01), Shimp et al.
patent: 4348505 (1982-09-01), Di Benedetto et al.

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