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Automobile weatherstripping
   
Document Number
US Patent 6500561
Issued Date
December 31, 2002
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Abstract
An automobile weatherstripping includes an extrusion-formed part and a mold-formed part, the mold-formed part being welded and integrated with the extrusion-formed part. The extrusion-formed part is made of an olefin elastomer and the mold-formed part is made of a resin composition containing an olefin resin, ethylene-.alpha.-olefin copolymer rubber, hydrogenated aromatic vinyl conjugated diene compounds block copolymer mineral oil and at least one of natural rubber and butadiene rubber in predetermined proportions. The extrusion-formed part and the mold-formed part have a sufficient level of bonding strength with no bonding agent layer being used therebetween.
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Automobile weatherstripping - US Patent 6500561 Drawing
Drawing from US Patent 6500561
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Number of Claims:
7
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Owner
Published
December 31, 2002
Application Number
09/046,513
Filed
March 24, 1998
US Classification
428/492   428/497 428/516 428/517
Int'l Classification
B60J   10/08   (20060101)   B60J   10/00   (20060101)   B32B   25/00   (20060101)   B32B   25/04   (20060101)  
Examiner
Assistant Examiner
Attorney/Law Firm
Priority Data
Mar 27, 1997 [JP] 9-075706 Mar 13, 1998 [JP] 10-063373
USPTO Field of Search
524/505   525/95   525/98   428/992   428/497   428/515   428/516   428/519   428/517   49/479.1   49/483.1   49/495.1   49/498.1   49/440   49/441   49/475.1   49/490.1  
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A door weather strip having an extruded member and a molded corner for connecting ends of the extruded member. The extruded member is composed of a foamed thermoplastic olefin elastomer which has an average cell diameter of 30 to 70 .mu.m and an expansion ratio of 150 to 250%.

7582352 - Layered product olefin foam and use - Owned by Mitsui Chemicals, Inc. (Tokyo,JP)

The foamed laminate based on olefin according to the present invention is composed of a substrate layer of a foamed body made of either an ethylenic thermoplastic elastomer comprising a polyethylene resin and an ethylene/.alpha.-olefin copolymer having a Mooney viscosity ML.sub.1+4 (100.degree. C.) of 90-250 and an ethylene content of 70-95 mole % or an ethylenic thermoplastic elastomer composition comprising 100 parts by weight of an olefinic thermoplastic elastomer and 1-20 parts by weight of an olefinic thermoplastic resin and, under lamination thereon, a skin layer made of either an ultrahigh molecular weight polyolefin resin having an intrinsic viscosity of 3.5-8.3 dl/g or made of an olefinic thermoplastic elastomer composition comprising an olefinic thermoplastic elastomer and a lubricant. The foamed laminate according to the present invention is easy in recycled use, obtainable at a high foaming expansion ratio with soft hand touch and is superior in the appearance, abrasion resistance, durability and sliding performance.

Claims
Description
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