Method of forming multiple coating on dry plating member and molded article manufactured using the same

Patent metadata

Field	Value
Publication number	US-11401437-B2
Application number	US-202016903665-A
Country	US
Kind code	B2
Filing date	Jun 17, 2020
Priority date	Jul 11, 2019
Publication date	Aug 2, 2022
Grant date	Aug 2, 2022

Abstract

Disclosed are methods of forming a multiple coating on a dry plating member and a molded article manufactured using the same. The method may include applying a color coating agent onto a surface of a plating layer of a plating member and then drying the applied color coating agent to form a color coating layer, and applying a clear coating agent onto a surface of the color coating layer and curing the applied clear coating agent to form a clear layer, wherein the plating member includes a substrate, an undercoat layer formed on a surface of at least a part of the substrate, and a plating layer formed on a surface of the undercoat layer.

First claim

The invention claimed is:

1. A method of forming a multiple coating on a dry plating member comprising:
applying a color coating agent onto a surface of a plating layer and then drying the applied color coating agent to form a color coating layer; and
applying a clear coating agent onto a surface of the color coating layer and curing the applied clear coating agent to form a clear layer,
wherein the plating member comprises:
a substrate;
an undercoat layer formed on a surface of at least a part of the substrate; and
the plating layer formed on a surface of the undercoat layer,
wherein the color coating agent comprises:
10 to 35% by weight of a modified acrylic resin;
1 to 25% by weight of a pigment; and
40 to 80% by weight of a first solvent based on a total weight of the color coating agent, and
wherein the clear coating agent comprises:
10 to 30% by weight of a polyester-modified acrylic resin;
5 to 25% by weight of an acrylic oligomer;
5 to 45% by weight of an acrylic monomer;
1 to 15% by weight of a photoinitiator; and
10 to 75% by weight of a second solvent based on a total weight of the clear coating agent.

2. The method according to claim 1 , wherein the undercoat layer is formed by applying an undercoating agent comprising 10 to 65% by weight of an acrylic compound, 0.1 to 5% by weight of a polyester-modified acrylic resin, 0.5 to 5% by weight of a photoinitiator and 30 to 75% by weight of a third solvent on at least one surface of the substrate based on a total weight of the undercoating agent, followed by curing, and
the acrylic compound comprises an acrylic monomer and an acrylic oligomer.

3. The method according to claim 1 , wherein the plating layer is formed by depositing a metal on a surface of the undercoat layer.

4. The method according to claim 1 , wherein the color coating layer is formed by drying the applied color coating agent at 60 to 80° C.

5. The method according to claim 1 , wherein the modified acrylic resin included in the color coating agent has a weight average molecular weight of 5,000 to 50,000 g/mol.

6. The method according to claim 1 , wherein the polyester-modified acrylic resin included in the clear coating layer has a weight average molecular weight of 5,000 to 50,000 g/mol, a hydroxyl value of 30 to 250 mgKOH/g and a glass transition temperature of 40 to 90° C.

7. The method according to claim 1 , further comprising at least one of 0.1 to 5% by weight of a light stabilizer, 0.1 to 5% by weight of a heat stabilizer, 0.1 to 5% by weight of an adhesion promoter and 0.1 to 10% by weight of an additive based on a total weight of the clear coating agent.

Assignees

• Hyundai Motor Co Ltd
• Kia Motors Corp

Inventors

• Kim Hyun Kyung
• Cha Dong Eun
• Yoon Jin Young
• Lee Hai Chang
• Park Sun Young

Classifications

• B05D7/536

  each layer being cured, at least partially, separately · CPC title

• C09D4/06

  {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

• C09D7/40

  Additives · CPC title

• C09D5/002 Primary

  Priming paints (C09D5/08 takes precedence) · CPC title

• B05D2451/00

  Type of carrier, type of coating (Multilayers) · CPC title