C - Chemistry – Metallurgy – 09 – D
Patent
C - Chemistry, Metallurgy
09
D
C09D 161/20 (2006.01) B05D 1/36 (2006.01) C09D 5/00 (2006.01) C09D 133/00 (2006.01) C09D 161/28 (2006.01) C09D 163/00 (2006.01) C09D 175/04 (2006.01)
Patent
CA 2161496
A curable base-coat composition which comprises (1) a resin component essentially consisting of a polymer of an ethylenically unsaturated monomer having 500 to 4,000 of an epoxy equivalent, 10 to 200 of a hydroxyl value,-30 to 80 °C of a glass transition temperature and 3,000 to 150,000 of a weight average molecular weight, (2) a curing agent having two or more functional groups in the molecular which can react with the hydroxyl groups of the resin component (1), (3) a Lewis acid catalyst, and (4) a pigment selected from the group consisting of a color pigment and a bright pigment. The curable base-coat composition has adhesive active points to curable clear-coat compositions comprising the acid curing agents blocked chemically and the resins containing epoxy groups or curable clear-coat compositions of the polyol-melamine type and/or the polyol-melamine-polyisocyanate type and gives a cured film having excellent cured film properties. The curable base-coat composition sufficiently exert the excellent characteristics of curable clear-coat compositions.
Katagiri Manabu
Mashita Mitsuyuki
Mizuno Shigeyuki
Ogura Kuniyoshi
Shibamoto Kenji
Gowling Lafleur Henderson Llp
Nof Corporation
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