C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
402/148, 400/201
C08G 18/40 (2006.01) C08G 18/10 (2006.01) C08G 18/42 (2006.01) C08G 18/62 (2006.01) C08G 18/80 (2006.01)
Patent
CA 1167196
Abstract of the Disclosure A polyurethane based composition for powder coating uses, which comprises a combination of an organic polyisocyanate compound and a hydroxyl- containing compound, the hydroxyl-containing compound being (A) A hydroxyl-containing polymer, or its carboxyl-modified product, obtained by hydrolyzing a copolymer of a vinyl ester of a saturated mono- carboxylic acid and other polymerizable vinyl monomers, and ( B) A polyester polyol of softening point of not lower than 40°C containing not less than 30 weight % of cyclohexylene or cyclohexenylene group or spiro rings. The composition provides coating films exhibiting exceedingly improved hardness, heat resistance, toughness and transparency as compared with the conventional polyolefin based powder coatings.
384008
Goto Jugo
Kubota Tsutomu
Miyamoto Reiji
Mochizuki Kazutaka
Fetherstonhaugh & Co.
Takeda Chemical Industries Ltd.
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