Coating compositions for interior of metal cans

Details Coating compositions for interior of metal cans Coating compositions for interior of metal cans

1986-09-16

1988-02-02

Pertilla, Theodore E.

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

Synthetic resins

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

523400, 525523, 428 35, C08L 6300

Patent

active

047229829

ABSTRACT:
This invention provides a coating composition to be applied to the inner surface of a can and comprising about 50 to about 90% by weight of a bisphenol A epoxy resin having an epoxy equivalent of about 1600 to about 5000 and about 10 to about 50% by weight of a phenol-aldehyde resin prepared by reacting 4.0 to 6.0 moles of a formaldehyde with 1 mole of a bisphenol A or with 1 mole of a mixture of a bisphenol A and a p-substituted monohydric phenol in an amount of about 1 mole or less per mole of the bisphenol A in the presence of a hydroxide of alkali metal.

REFERENCES:
patent: 3932144 (1976-01-01), Matsubara et al.
patent: 4018848 (1977-04-01), Khanna
patent: 4367318 (1983-01-01), Ishimura et al.

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