Active-energy-ray-curable resin composition and metal-thin-film undercoat agent

Patent metadata

Field	Value
Publication number	US-11306172-B2
Application number	US-201716316440-A
Country	US
Kind code	B2
Filing date	Jun 29, 2017
Priority date	Jul 14, 2016
Publication date	Apr 19, 2022
Grant date	Apr 19, 2022

Abstract

An active energy ray-curable resin composition which is excellently adhesive to a base material, an undercoat agent which is for a metal thin film and includes the resin composition, and a formed material obtained using the undercoat agent for a metal thin film are provided. The active energy ray-curable resin composition includes, as essential components, an alkyd resin (A), an unsaturated bond-containing polymerizable compound (B), a phenolic compound (C) represented by the following structural formula (1)wherein R1 is a hydrogen atom or a hydrocarbon group), and a photopolymerization initiator (D) having a structural moiety represented by the following structural formula (2)wherein R3's are any of an aliphatic hydrocarbon group, an aryl group, an aralkyl group, an alkoxy group, a hydroxyl group and an amino group, wherein two or more of the R3's may form a ring structure.

First claim

The invention claimed is:

1. An active energy ray-curable resin composition comprising as essential components:
an acryl-modified alkyd resin (A) obtainable by modifying oil-modified alkyd resin with a hydroxyl group-containing (meth)acrylate monomer having a weight-average molecular weight (Mw) of 50,000 to 700,000;
a (meth)acrylate monomer (B);
a phenolic compound (C) represented by the following structural formula (1)

wherein R 1 is a hydrogen atom or a hydrocarbon group, R 2 's each independently represent a hydrocarbon group, an alkoxy group or a halogen atom, and m is 0 or an integer of 1 to 4); and
a photopolymerization initiator (D) having a structural moiety represented by the following structural formula (2)

wherein R 3 's are any of an aliphatic hydrocarbon group, an aryl group, an aralkyl group, an alkoxy group, a hydroxyl group and an amino group, wherein two or more of the R 3 's may form a ring structure, R's each independently represent a hydrocarbon group, an alkoxy group or a halogen atom, and n is 0 or an integer of 1 to 5;
wherein the total amount of the acryl-modified alkyd resin (A) and the (meth)acrylate monomer (B) is 80 parts by mass or more with respect to 100 parts by mass of a total solid resin content, and
the mass ratio of the acryl-modified alkyd resin (A) and the (meth)acrylate monomer (B) [(A)/(B)] is 50/50 to 80/20.

2. An undercoat agent for a metal thin film, comprising the active energy ray-curable resin composition according to claim 1 .

3. A coating comprising a product made from the undercoat agent for a metal thin film according to claim 2 .

4. A formed material comprising an undercoat layer comprising a product made from the undercoat agent for a metal thin film according to claim 2 .

5. The active energy ray-curable resin composition according to claim 1 , wherein the (meth)acrylate monomer (B) is one or more selected from (poly)ethylene glycol di(meth)acrylate, (poly)propylene glycol di(meth)acrylate, butanediol di(meth)acrylate, hexanediol di(meth)acrylate, neopentyl glycol di(meth)acrylate, trimethylolpropane tri(meth)acrylate, glycerin tri(meth)acrylate, pentaerythritol tri(meth)acrylate, ditrimethylolpropane tri(meth)acrylate, dipentaerythritol tri(meth)acrylate, pentaerythritol tetra(meth)acrylate, ditrimethylolpropane tetra(meth)acrylate, dipentaerythritol hexa(meth)acrylate, dipentaerythritol tetra(meth)acrylate and dipentaerythritol penta(meth)acrylate.

6. The active energy ray-curable resin composition according to claim 1 consisting essentially of the alkyd resin (A), the (meth)acrylate monomer (B), the phenolic compound (C), the photopolymerization initiator (D) and a solvent.

Assignees

• Dainippon Ink & Chemicals

Inventors

• Umino Akio
• Uno Seiichi

Classifications

• C09D4/06 Primary

  {Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond} in combination with a macromolecular compound other than an unsaturated polymer of groups C09D159/00 - C09D187/00 · CPC title

• G02B5/08

  Mirrors {(vehicle mirrors involving special optical features B60R1/08)} · CPC title

• C08F290/06

  Polymers provided for in subclass C08G · CPC title

• C09D4/00

  Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond {; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16} · CPC title

• B32B27/36

  comprising polyesters · CPC title