ARTIFICIAL LEATHER EXCELLENT IN EXPANDABILITY AND METHOD FOR PRODUCTION THEREOF

Title:

ARTIFICIAL LEATHER EXCELLENT IN EXPANDABILITY AND METHOD FOR PRODUCTION THEREOF

Document Type and Number:

WIPO Patent Application WO/2003/027380

Kind Code:

A1

Abstract:

An artificial leather being composed of an entangled fiber material and an polymeric elastomer and excellent in expandability, characterized in that it exhibits an elongation percentage in the longitudinal direction of 15 % or more and an elongation recovery in the longitudinal direction of 80 % or more&semi and a method for producing the artificial leather, which comprises integrating a fiber web and a shrinkable sheet, attaching a polymeric elastomer to the integrated sheet, subjecting the resulting sheet to a shrinking treatment, and then removing the shrinkable sheet. The artificial leather exhibits excellent expandability, in particular, excellent expandability in the longitudinal direction which has not been achieved by a conventional artificial leather, without lowering the surface quality thereof.

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Inventors:

HANAOKA JUN (JP)
IIJIMA HIROMICHI (JP)
IKEYAMA MASAMI (JP)
WATANABE KOJI (JP)

Application Number:

PCT/JP2002/009456

Publication Date:

April 03, 2003

Filing Date:

September 13, 2002

Export Citation:

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Assignee:

TORAY INDUSTRIES (JP)
HANAOKA JUN (JP)
IIJIMA HIROMICHI (JP)
IKEYAMA MASAMI (JP)
WATANABE KOJI (JP)

International Classes:

B32B7/06; B32B27/12; B32B37/14; D06N3/00; B29C61/02; (IPC1-7): D06N3/00

Foreign References:

JP2000336581A	2000-12-05
JP2001214377A	2001-08-07
JPS5247901A	1977-04-16
JP2000303365A	2000-10-31
JPS61132684A	1986-06-20
JP2001164477A	2001-06-19
JPS62289602A	1987-12-16
JPS62289603A	1987-12-16
US4515854A	1985-05-07

Other References: