Active-energy-ray-curable aqueous resin composition and undercoat agent for inorganic-material thin film

Patent metadata

Field	Value
Publication number	US-10829579-B2
Application number	US-201816480452-A
Country	US
Kind code	B2
Filing date	Jan 18, 2018
Priority date	Jan 25, 2017
Publication date	Nov 10, 2020
Grant date	Nov 10, 2020

Abstract

Provided are an active-energy-ray-curable aqueous resin composition capable of providing excellent coating appearance and excellent adhesion to a substrate, an undercoat agent for an inorganic-material thin film produced using the same, and a molded article produced using the undercoat agent for an inorganic-material thin film. The active-energy-ray-curable aqueous resin composition includes an acryl-modified alkyd resin (A) and a (meth)acryloyl group-containing compound (B) as essential components. The undercoat agent for an inorganic-material thin film is produced using the composition, and the molded article is produced using the undercoat agent for an inorganic-material thin film.

First claim

The invention claimed is:

1. An active-energy-ray-curable aqueous resin composition comprising an acryl-modified alkyd resin (A) and a (meth)acryloyl group-containing compound (B) as essential components,
wherein the acryl-modified alkyd resin (A) is a reaction product of, as reaction raw materials, an acrylic resin intermediate (X) having an acid value in the range of 50 to 300 mg KOH/g and a weight average molecular weight (Mw) in the range of 1,000 to 50,000 and an alkyd resin intermediate (Y) having an oil length of 10 or more and a weight average molecular weight (Mw) in the range of 1,000 to 100,0000.

2. The active-energy-ray-curable aqueous resin composition according to claim 1 , wherein the acryl-modified alkyd resin (A) is produced using a polyhydric alcohol having a (poly)oxyethylene structure as an essential reaction raw material.

3. The active-energy-ray-curable aqueous resin composition according to claim 2 , wherein the proportion of the polyhydric alcohol having a (poly)oxyethylene structure is in the range of 0.1 to 50% by mass, based on the total mass of the reaction raw materials for the acryl-modified alkyd resin (A).

4. The active-energy-ray-curable aqueous resin composition according to claim 1 , wherein the acrylic resin intermediate (X) has an oil length of 10 or more.

5. The active-energy-ray-curable aqueous resin composition according to claim 1 , wherein the mass ratio of the acryl-modified alkyd resin (A) to the (meth)acryloyl group-containing compound (B) [(A)/(B)] is 20/80 to 80/20.

6. An undercoat agent for an inorganic-material thin film, comprising the active-energy-ray-curable aqueous resin composition according to claim 1 .

7. A coating film comprising the undercoat agent according to claim 6 .

8. A molded article having an undercoat layer comprising the undercoat agent according to claim 6 .

Assignees

• Dainippon Ink & Chemicals

Inventors

• Umino Akio
• Fukuoka Hirotake

Classifications

• C09D133/26

  Homopolymers or copolymers of acrylamide or methacrylamide · CPC title

• C08G63/918

  Polycarboxylic acids and polyhydroxy compounds in which at least one of the two components contains aliphatic unsaturation · CPC title

• C08F20/18

  with acrylic or methacrylic acids · CPC title

• C09D167/08

  Polyesters modified with higher fatty oils or their acids, or with natural resins or resin acids · CPC title

• C09D133/10

  Homopolymers or copolymers of methacrylic acid esters · CPC title