Method of cationic electrodeposition

Details Method of cationic electrodeposition Method of cationic electrodeposition

1983-06-06

1984-08-28

Pertilla, Theodore E.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

204181R, 523414, 524901, C25D 1306

Patent

active

044683073

ABSTRACT:
An improved process for the preparation of cationic resins derived from polyepoxides is disclosed. Typically, the process comprises contacting the polyepoxide with particular polyether polyols and heating the two together to form a resin which may then be reacted with a cationic base group former such as an amine and acid. Aqueous dispersions of the cationic resins prepared by the improved process are useful for coating applications, particularly cationic electrodeposition. They exhibit good low temperature cure response and the cured coatings have good physical properties such as resistance to water, detergent and salt spray corrosion.

REFERENCES:
patent: 3839252 (1974-10-01), Bosso et al.
patent: 4104147 (1978-08-01), Marchetti et al.
patent: 4148772 (1979-04-01), Marchetti et al.
patent: 4260720 (1981-04-01), Bosso et al.
patent: 4297261 (1981-10-01), Jozwiak, Jr.

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