Aqueous, essentially VOC-free adhesive epoxy primer

Details Aqueous, essentially VOC-free adhesive epoxy primer Aqueous, essentially VOC-free adhesive epoxy primer

1995-05-15

1996-11-19

Marquis, Melvyn I.

Coating processes

With post-treatment of coating or coating material

Heating or drying

156315, 427386, 4273882, 4273884, 427410, 523404, B05D 302

Patent

active

055760619

ABSTRACT:
Aqueous primer compositions containing substantially no volatile organic solvents, suitable for promoting the bonding of a metal adherend to a second adherend, are prepared by dispersing one or more solid epoxy resins and a solid curing agent into water such that the particle sizes of the solids are less than 30 .mu.m. The primer compositions are environmentally superior to solvent based primers without loss of physical properties, are storage stable, and exhibit excellent solvent resistance.

REFERENCES:
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patent: 4482660 (1984-11-01), Minamisawa et al.
patent: 4607069 (1986-08-01), Tesch et al.
patent: 4855386 (1989-08-01), Bauer
patent: 5001173 (1991-03-01), Anderson
patent: 5118729 (1992-06-01), Piechocki
International Search Report for PCT/US 93/08547 Dated: Dec. 17, 1993.
Polymers Paint Colour Journal--Oct. 17, 1990 vol. 180 No. 4270 Guidelines to Formulation of Waterborne Epoxy Primers.
Modern Plastics, 1959, pp. 83 and 84 Emulsions--Why and How They Are Used.
Modern Paint and Coatings, Jul. 1991, pp. 46 and 48 Epoxy Waterborne Primer: Low-Temp Cure and Zero VOCs.
Adhesives Age, Dec. 1991, pp. 24-26 Waterborne Epoxy Dispersions Provide Complaint Alternatives.

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