Process for applying an aqueous, heat-curable coating to cans

Details Process for applying an aqueous, heat-curable coating to cans Process for applying an aqueous, heat-curable coating to cans

1988-04-06

1990-07-24

Ivy, C. Warren

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

427386, 523100, 523403, 523404, 523416, 523424, C08L 6300, C09D 544

Patent

active

049433598

ABSTRACT:
Aqueous, heat-curable coating material, containing as vehicle 85 to 40 weight percent of a mixture of a fatty acid-free, acidic epoxide resin phosphate ester with an acid number of 10 to 150, prepared from an epoxide group-containing polyglycidyl ether and/or a polyglycidyl methacrylate resin with more than 1.3 epoxide groups per molecule and an epoxide equivalent weight of 180 to 5,000 and a phenolic resin-modified, carboxyl group-containing, oil-free polyester with an acid number of 15 to 175 and an OH number of 15 to 175, 0 to 25 weight percent of an epoxide resin graft copolymer with an acid number of 30 to 200, prepared from an epoxide group-free reaction product of fatty acid-free polyglycidyl ethers with more than 1.3 epoxide groups per molecule and an epoxide equivalent weight of 1,000 to 5,000 with .alpha.,.beta.-unsaturated monocarboxylic acids and 5 to 40 weight percent of a fully etherified amineformaldehyde condensation resin and/or a fully etherified phenol-formaldehyde condensation resin with at least 2 reactive sites per molecule; its use for coating substrates, as well as methods for coating objects with these coating materials and objects coated therewith.

REFERENCES:
patent: 4025692 (1977-05-01), Yamagishi
patent: 4316922 (1982-02-01), Perine
patent: 4425451 (1984-01-01), Sekmakas
patent: 4461857 (1984-07-01), Sekmakas
patent: 4487860 (1984-12-01), Winner
patent: 4503173 (1985-03-01), Martino
patent: 4508765 (1985-04-01), Ring
patent: 4522961 (1985-06-01), Martino

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