Thermosetting coating composition

Abstract

Abstract PURPOSE:To provide the titled compsn. for coating plastic subtrates, which can form a coating film having excellent resistance to blocking and gasoline, hardness and durability, by blending an alkyd resin having a specified composition with an amino resin. CONSTITUTION:An alkyd resin (number-average MW: 4,000-6,000, hydroxyl value: 50-120) contg. 0-40wt% (per 100wt% alkyd resin) aliph. bivalent alcohol (a) (e.g. 1,4-butylene glycol) of formula I (wherein n is 4-10) and 0-20wt% (per 100wt% alkyd resin) aliph. dibasic acid (b)(e.g. adipic acid) of formula II (the combined quantity of components a and b being 10-50wt%), is used. Said alkyd resin is blended with an amino resin (e.g. n-butyl alcohol-modified melamine resin) in a weight ratio of 85/15-70/30 on a solid basis.

Inventors

• 👤 Takao Hirayama
• 👤 隆雄 平山
• 👤 Hisashi Kaneko
• 👤 金子　久
• 👤 Shigeto Kumazaki
• 👤 熊崎　栄人

Bibliographic Details