ACTIVE ENERGY RAY-CURABLE UNDERCOAT COMPOSITION FOR FRP

WIPO Patent Application WO/2022/145376

A1

The purpose of the present invention is to provide a composition that uses almost no xylene as a solvent, improves drying and moisture resistance properties, and can be used as an undercoat for automobile light reflectors that are compatible with LED bulbs.　The present invention provides an active energy ray-curable undercoat composition for FRP for carrying out metal deposition, said composition containing a polyfunctional (meth)acrylate (A) and an oil-modified alkyd resin (B), wherein: the polyfunctional (meth)acrylate (A) has four or more (meth)acryloyl groups per molecule, and is contained in an amount of 25-45 parts by mass relative to a total amount of 100 parts by mass of the polyfunctional (meth)acrylate (A) and the oil-modified alkyd resin (B); the oil-modified alkyd resin (B) is contained in an amount of 55-75 parts by mass relative to a total amount of 100 parts by mass of the polyfunctional (meth)acrylate (A) and the oil-modified alkyd resin (B); and the oil-modified alkyd resin (B) has an oil length of 35-50%, an acid value of 0.01-10 mg KOH/g, a hydroxyl value of 80-130 mg KOH/g, and a weight average molecular weight of 80,000-150,000.

ARAKI TAKAHIRO (JP)
OKUDA HIDEAKI (JP)
MIZUGUCHI JUNKO (JP)
MANO HIROTSUGU (JP)

PCT/JP2021/048273

July 07, 2022

December 24, 2021

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NIPPON PAINT AUTOMOTIVE COATINGS CO LTD (JP)

C09D4/02; C09D5/00; C09D7/61; C09D7/63; C09D167/08

WO2015019898A1	2015-02-12
WO2018012295A1	2018-01-18

JP2017039791A	2017-02-23
JP2018177844A	2018-11-15
JP2016199690A	2016-12-01
JP2003221408A	2003-08-05
JP2017039792A	2017-02-23

YAMAO, Norihito et al. (JP)

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