Epoxy resins and emulsions made therefrom

Details Epoxy resins and emulsions made therefrom Epoxy resins and emulsions made therefrom

1981-11-20

1983-08-02

Nielsen, Earl A.

Coating processes

With post-treatment of coating or coating material

Heating or drying

525423, 525438, 523414, 523415, 523416, 528111, 528114, 528121, 528291, 528341, 204181C, C08G 5964, C08G 5942, C08G 5950

Patent

active

043966497

ABSTRACT:
Tertiary nitrogen-containing chain-extended epoxy resins, capable of forming stable aqueous emulsions, may be produced by chain-extending an epoxy resin using a tertiary nitrogen containing ether or ester polyol for example, particularly, polycaprolactone which has been polymerization initiated by a tertiary amine polyol such as N-methyl diethanolamine. The corresponding amine salt is formed by treatment with an acid for example acetic acid and the resulting cationic polymer may be dispersed in water to form a cationic emulsion capable of being coated onto a substrate by electrodeposition. The chain extended resins, by virtue by their content of free epoxy groups are also usable for cross-linking and other uses.

REFERENCES:
patent: 2994673 (1961-08-01), Capron et al.
patent: 4130510 (1978-12-01), Tanaka et al.
patent: 4296231 (1981-10-01), Gutekunst et al.
patent: 4308085 (1981-12-01), Horhold et al.
patent: 4339369 (1982-07-01), Micks et al.

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