FLEXIBLE BOOT MADE OF RESIN AND METHOD FOR MANUFACTURING THE SAME

Title:

FLEXIBLE BOOT MADE OF RESIN AND METHOD FOR MANUFACTURING THE SAME

Document Type and Number:

WIPO Patent Application WO/2001/011253

Kind Code:

A1

Abstract:

A flexible boot which utilizes a thermoplastic elastomer resin as its base resin material and comprises a large bore part and a small bore part and, connecting the bore parts, a bellow part, characterized in that the thermoplastic elastomer resin contains a mineral oil or a vegetable oil. The thermoplastic elastomer resin is preferably a thermoplastic polyester elastomer and the mineral oil is preferably a process oil having an aromatic component content of 13 % or less. The flexible boot is used for covering a constant-velocity universal joint of an automobile and is advantageous in that it exhibits improved continuation with respect to the suppression of an abnormal noise, while securing good sealing property and durability.

Inventors:

SAITO KATSUSHI (JP)
TORIUMI MAYUKI (JP)
OHNO HIROSHI (JP)
UENO HITOSHI (JP)

Application Number:

PCT/JP2000/005238

Publication Date:

February 15, 2001

Filing Date:

August 03, 2000

Export Citation:

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Assignee:

TOYO TIRE & RUBBER CO (JP)
TOYO BOSEKI (JP)
SAITO KATSUSHI (JP)
TORIUMI MAYUKI (JP)
OHNO HIROSHI (JP)
UENO HITOSHI (JP)

International Classes:

F16D3/84; F16J3/04; (IPC1-7): F16D3/84

Domestic Patent References:

WO1997046618A1

1997-12-11

Foreign References:

JPH07126500A	1995-05-16
JPH11130952A	1999-05-18
JPS50160361A	1975-12-25
JPH10278747A	1998-10-20
JPH09177971A	1997-07-11

Other References: