COAL-BLACK MULTILAYER COATING FILM AND METHOD FOR FORMING SAME

WIPO Patent Application WO/2013/137393

A1

Provided are: a coal-black multilayer coating film that is formed from a coating material composition using a plant-derived aliphatic polyester as the primary starting material and that has superior performance in terms of an excellent appearance, water resistance, moisture resistance, and the like; and a method for producing the coal-black multilayer coating film. The coal-black multilayer coating film has: a base coating film layer formed from a base coating material composition containing a polyester polyol (A-1), which contains a specific amount of a tri- or higher order-functional polyol and lactic acid, has a specific hydroxyl value, and has a specific amount of second-order hydroxyl groups, an acrylic resin (A-2) having a specific hydroxyl value and glass transition point, and a polyisocyanate (A-3); and a clear coating film layer formed on the base coating film layer and formed from a clear coating material composition containing a polyester polyol (B-1), which has a specific hydroxyl value and is obtained by polymerizing a starting material composition comprising a tri- or higher order-functional polyol, sebacic acid, and a diol, an acrylic resin (B-2) having a specific hydroxyl value, and a polyisocyanate (B-3).

MORITA KOJI (JP)
MIWA YASUNORI (JP)
YAMASHITA HIROFUMI (JP)
YABUUCHI NAOYA (JP)
ISHII MASAHIKO (JP)
HASE MASAKO (JP)

PCT/JP2013/057198

September 19, 2013

March 14, 2013

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TOYOTA MOTOR CO LTD (JP)

B05D1/36; B05D5/06; B05D7/24; B32B27/20; B32B27/30; B32B27/36; B32B27/40; C09D7/12; C09D133/00; C09D167/00; C09D175/04

JP2004098033A	2004-04-02
JP2010279899A	2010-12-16
JP2010248478A	2010-11-04
JP2009503122A	2009-01-29

YAGI, Toshiyasu (JP)
Toshiyasu Yagi (JP)

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