Stock material or miscellaneous articles – Composite – Of epoxy ether
Patent
1993-06-04
1995-07-11
Marquis, Melvyn I.
Stock material or miscellaneous articles
Composite
Of epoxy ether
2041817, 428516, 428520, 523409, 524507, 524510, 515131, B32B 2738
Patent
active
054320054
ABSTRACT:
A method for forming a chipping-resistant film, a chipping resistant composition and coated articles containing the chipping-resistant film are disclosed. The method includes applying a water-based chipping-resistant composition in either (1) a coating process including electrodeposition, intermediate coating, and topcoating to form (a) a film disposed between an electrodeposited film and an intermediate-coated film, or (b) a film disposed between an intermediate-coated film and a topcoated film; or (2) a coating process including electrodeposition coating and topcoating to form (c) a film disposed between an electrodeposited film and a topcoated film. The water-based, chipping-resistant composition includes: (A) a modified ethylenical polymer which is obtained from an ethylene monomer and an ethylenically unsaturated monomer containing a carboxyl group and which has been made water-dispersible by the addition of a base, and in which at least the backbone of the ethylenical polymer molecule has carboxyl groups bonded thereto and derived from the ethylenically unsaturated monomer, the total amount of the carboxyl groups being not less than 10% by weight based on the amount of the ethylenical polymer; and (B) a water-based polyurethane resin, where the proportion of component (A) to component (B) is from 10/90 to 50/50 by weight.
REFERENCES:
patent: 3900126 (1975-08-01), Ishikawa et al.
patent: 4983454 (1991-01-01), Hiraki et al.
patent: 5098947 (1992-03-01), Metzger et al.
patent: 5104928 (1992-04-01), Craun et al.
Mashima Hiroshi
Tanigami Hajime
Aylward D.
Marquis Melvyn I.
Nippon Paint Co. Ltd.
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