Graft copolymer useful in electrodeposition

Details Graft copolymer useful in electrodeposition Graft copolymer useful in electrodeposition

1979-11-30

1981-01-20

Lieberman, Paul

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

525 65, 525109, 525113, 525118, 525450, 525451, 525530, 260 292EP, 260 2946A, C25D 1306, C08F26102

Patent

active

042460891

ABSTRACT:
A polyamine/epoxy ether graft copolymer having an acrylic polamine backbone with secondary amine and hydroxy functionality, part of which is terminal primary hydroxy groups, onto which is grafted an epoxy ether. The ether is an epoxy resin preferably reacted with nonylphenol resulting in a monoepoxide ether with one or less epoxy group per epoxy ether molecule. The ether is reacted with part of the secondary amine on the acrylic backbone. This system can be formulated to a nearly-neutral pH cathodic dispersion with good cure response at 150.degree.-175.degree. C. using conventional aminoplast crosslinkers.

REFERENCES:
patent: 3366706 (1908-01-01), Vasta
patent: 4167499 (1979-09-01), Hazan

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