Interior sheet for vehicles and method for manufacturing same

Patent metadata

Field	Value
Publication number	US-9487673-B2
Application number	US-201214416091-A
Country	US
Kind code	B2
Filing date	Dec 28, 2012
Priority date	Aug 7, 2012
Publication date	Nov 8, 2016
Grant date	Nov 8, 2016

Abstract

The present invention relates to an interior sheet for vehicles which includes a surface-treated layer which is formed from the electron beam cross-linking of a siloxane-modified urethane-based acrylate resin, silicone acrylate, and polysiloxane.

First claim

The invention claimed is:

1. An interior sheet for vehicles, comprising a surface-treated layer formed by electron beam cross-linking of 100 parts by weight of a siloxane-modified urethane-based acrylate resin, 20 parts by weight to 35 parts by weight of a silicone acrylate, and 1 part by weight to 15 parts by weight of a polysiloxane.

2. The interior sheet for vehicles according to claim 1 , wherein the siloxane-modified urethane-based acrylate resin comprises bifunctional siloxane-modified urethane-based acrylate resins and trifunctional siloxane-modified urethane-based acrylate resins.

3. The interior sheet for vehicles according to claim 1 , wherein the surface-treated layer has a thickness of about 1 μm to about 20 μm.

4. The interior sheet for vehicles according to claim 1 , further comprising: a substrate comprising one selected from the group consisting of polyvinyl chloride, polyurethane, thermoplastic polyurethane, thermoplastic polyolefin resins, and combinations thereof.

5. The interior sheet for vehicles according to claim 1 , wherein the surface-treated layer has an elongation of about 20% to about 150%.

6. The interior sheet for vehicles according to claim 1 , wherein the surface-treated layer further comprises an additive selected from the group consisting of dispersants, matting agents, defoaming agents, and combinations thereof.

7. A method for manufacturing an interior sheet for vehicles, comprising:
applying a composition for surface treatment to a substrate, the composition for surface treatment comprising 100 parts by weight of a siloxane-modified urethane-based acrylate resin, 20 parts by weight to 35 parts by weight of a silicone acrylate, and 1 part by weight to 15 parts by weight of a polysiloxane; and
irradiating the applied composition with electron beams to form a surface-treated layer.

8. The method for manufacturing an interior sheet for vehicles according to claim 7 , wherein the surface-treated layer is formed by electron beam irradiation at a voltage of about 50 keV to about 300 keV.

9. The method for manufacturing an interior sheet for vehicles according to claim 7 , wherein the surface-treated layer is formed by electron beam irradiation at an electron dose of about 10 kGy to about 100 kGy.

10. The method for manufacturing an interior sheet for vehicles according to claim 7 , wherein the substrate comprises one selected from the group consisting of polyvinyl chloride, polyurethane, thermoplastic polyurethane, thermoplastic polyolefin resins, and combinations thereof.

Assignees

• Lg Hausys Ltd

Inventors

• Yun Su Hyeong
• Jung Yong Bae
• Min Chul Hee

Classifications

• C09D175/16 Primary

  having terminal carbon-to-carbon unsaturated bonds · CPC title

• B60R13/02

  {Internal} Trim mouldings {; Internal} Ledges; Wall liners {for passenger compartments}; Roof liners (B60R13/01 takes precedence {; padded linings for the vehicle interior B60R21/04; arrangements or adaptations of floor mats or carpets in vehicles B60N3/04; internal lining for trains B61D17/18}) · CPC title

• C08F299/08

  from polysiloxanes · CPC title

• C08L33/14

  of esters containing halogen, nitrogen, sulfur, or oxygen atoms in addition to the carboxy oxygen · CPC title

• B05D3/068

  using ionising radiations (gamma, X, electrons) · CPC title