Sealing gasket for the automobile industry or the contruction industry, for example

• US 20070193120A1
• Filed: 01/31/2007
• Published: 08/23/2007
• Est. Priority Date: 02/01/2006
• Status: Abandoned Application

• Current Assignee: Hutchinson (Welltower, Inc.)
• Original Assignee: Hutchinson (Welltower, Inc.)
• Inventors: Devaux, Philippe, Andre, Sylvain, Tessier, Bernard, Lebrize, Christophe
• Application Number:
  US11/669,701
• Publication Number:
  US 20070193120A1
• Time in Patent Office: Days
• US Class Current: 49/490.1
• CPC Class Codes: B60J 10/32 using integral U-shaped retainers
• CPC Class Codes: B60J 10/80 specially adapted for opening panels, e.g. doors for non-fixed roofs B60J10/90

Abstract

A sealing gasket comprising at least one zone for putting into contact via a sealing barrier with a gasket-receiver support such as a rabbet on a frame surrounding a recess for a moving panel in the automobile industry or a contact zone between two stationary panels in the construction industry, wherein said sealing barrier comprises a rubber composition based on at least one thermoplastic elastomer of compact type presenting hardness on the Shore A scale, measured using the ASTM D 2240 standard, that is less than or equal to 40.

Claims

1. A sealing gasket comprising at least one zone for putting into contact via a sealing barrier with a gasket-receiver support such as a rabbet on a frame surrounding a recess for a moving panel in the automobile industry or a contact zone between two stationary panels in the construction industry, wherein said sealing barrier comprises a rubber composition based on at least one thermoplastic elastomer of compact type presenting hardness on the Shore A scale, measured using the ASTM D 2240 standard, that is less than or equal to 40.

2. A sealing gasket according to claim 1, in which said thermoplastic elastomer presents hardness on the Shore A scale less than or equal to 20.

3. A sealing gasket according to claim 2, in which said thermoplastic elastomer presents hardness on the Shore A scale that is substantially equal to 0.

4. A sealing gasket according to claim 1, in which said thermoplastic elastomer is a styrene thermoplastic elastomer.

5. A sealing gasket according to claim 4, in which said styrene thermoplastic elastomer is a styrene/ethylene/butylene/styrene (SEBS) block copolymer.

6. A sealing gasket according to claim 4, in which said styrene thermoplastic elastomer is a styrene/ethylene/propylene/styrene (SEPS) block copolymer.

7. A sealing gasket according to claim 1, in which the sealing barrier is co-extruded on the zone of the gasket that is to come into contact with the gasket-receiver support.

8. A sealing gasket according to claim 1, in which the zone of the gasket that is to come into contact with the gasket-receiver support is based on a terpolymer of ethylene/propylene/diene monomer (EPDM), or of a thermoplastic elastomer (TPE, TPO, or TPV) of the type comprising a mixture of a polyolefin and a rubber such as an EPDM.

9. A sealing gasket according to claim 1, in which the gasket presents a fastener clamp forming the zone of the gasket that is to be put into contact with the gasket-receiver support such as a rabbet, said clamp being substantially of channel-section presenting a web and two lateral flanges, and in which said sealing barrier is mounted adjacent the web of the clamp.

10. A sealing gasket according to claim 9, in which the sealing barrier is of arched shape.

11. A sealing gasket according to claim 1, in which the gasket is put into contact with a contact zone between two stationary panels via the sealing barrier that is deposited in the form of a bead or a film.