EXTRUSION-MOLDED PRODUCT HAVING A CORE MATERIAL

• US 20090313929A1
• Filed: 05/29/2009
• Published: 12/24/2009
• Est. Priority Date: 06/20/2008
• Status: Abandoned Application

• Current Assignee: System Technical Co., Ltd., Tokiwa Chemical Industries Co., Ltd.
• Original Assignee: System Technical Co., Ltd., Tokiwa Chemical Industries Co., Ltd.
• Inventors: Miyakawa, Naohisa, Kato, Katsuhisa
• Application Number:
  US12/474,602
• Publication Number:
  US 20090313929A1
• Time in Patent Office: Days
• US Class Current: 52/309.100
• CPC Class Codes: B60J 10/32 using integral U-shaped retainers
• CPC Class Codes: B60R 13/06 Sealing strips sealing arrangements for vehicle windows, windscreens, non-fixed roofs, doors, or similar devices B60J10/00

Abstract

An extrusion-molded product for attaching to a flange of a vehicle body opening, such as an automotive door, trunk and backdoor comprises a core material having a U-shaped cross section along the lengthwise direction of of said core material, a coating layer of thermoplastic elastomer or rubber formed in the outside of the core material and provided with a hollow seal portion, and a pressing member of thermoplastic elastomer or rubber having a hollow portion formed integrally in the inside of the U-shaped cross section of the core material.

Claims

1. An extrusion-molded product for attaching to a flange of a vehicle body opening, such as an automotive door, trunk and backdoor comprising:

a core material having a U-shaped cross section along the lengthwise direction of said core material;

a coating layer of thermoplastic elastomer or rubber formed in the outside of the core material and provided with a hollow seal portion; and

a pressing member of thermoplastic elastomer having a hollow portion formed in the inside of a connecting portion of the U-shaped cross section of the core material.

2. The extrusion-molded product having the core material according to claim 1, wherein the pressing member is formed integrally in the inside of the connecting portion and opposed side portions of the U-shaped cross section of said core material.

3. The extrusion-molded product having the core material according to claim 1, wherein the pressing member is provided with a channel portion.

4. The extrusion-molded product having the core material according to claim 1, wherein the pressing member is formed integrally in a part or whole of the inside of the core material.

5. The extrusion-molded product having the core material according to claim 1, wherein the coating layer is formed in a part or whole of the inside of the core material.

6. The extrusion-molded product having the core material according to claim 5, wherein the coating layer is formed between the core material and pressing member.

7. The extrusion-molded product having the core material according to claim 1, wherein the pressing member is made of a thermoplastic elastomer or rubber having a hardness not higher than 20.

8. The extrusion-molded product having the core material according to claim 1, wherein the pressing member is made of a thermoplastic elastomer or rubber having a tensile stress not higher than 0.5 Mpa at the elongation time of 100%.

9. The extrusion-molded product having the core material according to claim 1, wherein the pressing member is made of a thermoplastic elastomer or rubber having a rebound resilience not higher than 70%.

10. The extrusion molded product having the core material according to claim 1, wherein the pressing member is made of a thermoplastic elastomer or rubber having an adhesiveness.

11. The extrusion molded product having the core material according to claim 1, wherein the core material is made of a hard synthetic resin.

12. The extrusion molded product having the core material according to claim 1, wherein the core material is made of a metal.