Radiation curable coating

Details Radiation curable coating Radiation curable coating

1976-10-06

1978-01-24

Brammer, Jack P.

Chemistry: electrical and wave energy

Processes and products

Processes of treating materials by wave energy

20415916, 20415918, C08F 246, C08F 202

Patent

active

040702626

ABSTRACT:
A radiation curable coating composition for various substrates contains an adduct of acrylic acid and an epoxy resin (which may be modified with an anhydride, such as maleic anhydride), and a reactive acrylate monomer vehicle. The coating composition can be pigmented and can also contain additives commonly used in coatings, such as wetting agents and flow control agents. The coating composition does not require the usual hydrocarbon vehicles that give rise to air pollution problems. Surface gloss of a UV cured film obtained from a pigmented coating composition can be increased by using a photosensitizer combination of 2-chlorothioxanthone and a phenylketone, such as benzophenone. Adhesion of a cured coating is improved by replacing the tertiary amine co-sensitizer, at least in part, with dimethylaminoethyl acrylate.

REFERENCES:
patent: 3661576 (1972-05-01), Crary
patent: 3719728 (1973-03-01), Mirnada
patent: 3759807 (1973-09-01), Osborn et al.
patent: 3878075 (1975-04-01), McGinnis
patent: 4004997 (1977-01-01), Tsukamoto et al.

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