Coating with a base coat comprising a polyepoxy compound, a poly

Details Coating with a base coat comprising a polyepoxy compound, a poly Coating with a base coat comprising a polyepoxy compound, a poly

1997-05-27

1999-05-11

Sellers, Robert E.

Coating processes

With post-treatment of coating or coating material

Heating or drying

427327, 525113, 525166, 525208, 525438, B05D3/02

Patent

active

059026448

ABSTRACT:
A method of forming a topcoat from a base coat and clear coat comprises applying to the surface of an undercoat or intercoat a base coat containing (A) a compound having at least two epoxy groups per molecule, (B) a compound having at least two carboxyl groups per molecule, wherein at least one of compounds (A) and (B) possesses hydroxyl groups, (C) a melamine resin with from 0.3-3.5 imino groups, from 2-5.5 alkyl ether groups per triazine nucleus and having a polymerization degree of from 1.6-3.5, and (D) pigment(s); then applying a clear coat prepared from (A) a compound having at least two epoxy groups per molecule and (B) a compound having at least two carboxyl groups per molecule, and curing by heating.

REFERENCES:
patent: 4710543 (1987-12-01), Chattha et al.
patent: 4960828 (1990-10-01), Higuchi et al.
patent: 5196485 (1993-03-01), McMonigal et al.
patent: 5369153 (1994-11-01), Barsotti et al.
patent: 5536794 (1996-07-01), Yezrielev et al.

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