METHOD FOR FORMING MULTILAYER COATING FILM

WIPO Patent Application WO/2021/065401

A1

This method for forming a multilayer coating film includes: a step for coating a base coating material (X) having a solids content of 30-62 mass% on an object to be coated, thereby forming a base coating film having a cured film thickness of 6-45 μm; a step for coating a photoluminescent pigment dispersion (Y) having a solids content of 0.1-10 mass% on the base coating film so as to form a photoluminescent coating film having a cured film thickness of 0.1-5.0 μm; a step for coating a two-component clear coating material (Z) containing a hydroxyl group-containing resin and a polyisocyanate compound on the photoluminescent coating film so as to form a clear coating film; and a step for simultaneously curing the base coating film, the photoluminescent coating film and the clear coating film by heating. The method is characterized in that: the base coating material (X) contains a polyurethane resin (A), an alcohol (B) having 6-12 carbon atoms, and an organic solvent (C) having an HLB value of 7-9; and the photoluminescent pigment dispersion (Y) contains water, a flaky photoluminescent pigment (P), a resin emulsion (Q), and cellulose nanofibers (R).

SAKAI KENJI (JP)

PCT/JP2020/034232

April 08, 2021

September 10, 2020

Click for automatic bibliography generation  

KANSAI PAINT CO LTD (JP)

B05D5/06; B05D1/36; B05D7/24; C09D17/00; C09D101/02; C09D175/04

WO2018012014A1	2018-01-18
WO2016121238A1	2016-08-04
WO2014045657A1	2014-03-27

JP2014080569A	2014-05-08
JP2018171614A	2018-11-08
JP2013212482A	2013-10-17

RESEARCH ON COATINGS, no. 138, August 2002 (2002-08-01), pages 8 - 24
RESEARCH ON COATINGS, no. 132, April 1999 (1999-04-01), pages 22 - 35

SAEGUSA & PARTNERS (JP)

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