Base for synthetic leather and synthetic leathers made by...

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2011-04-26

2011-04-26

Torres-Velazquez, Norca L (Department: 1786)

Fabric (woven, knitted, or nonwoven textile or cloth, etc.)

Coated or impregnated woven, knit, or nonwoven fabric which...

Coated or impregnated synthetic organic fiber fabric

C442S340000, C442S402000, C442S408000, C428S904000, C264S172130

Reexamination Certificate

active

07932192

ABSTRACT:
A substrate for artificial leathers, comprising a nonwoven fabric body made of microfine fiber bundles and an elastic polymer impregnated therein. The substrate for artificial leathers simultaneously satisfies the following requirements 1 to 4: (1) each of the microfine fiber bundles contains 6 to 150 bundled microfine long fibers in average; (2) a cross-sectional area of the microfine long fibers constituting the microfine fiber bundles is 27 μm2or less, and 80% or more of the microfine long fibers has a cross-sectional area of from 0.9 to 25 μm2; (3) an average cross-sectional area of the microfine fiber bundles is from 15 to 150 μm2; and (4) on a cross section parallel to a thickness direction of the nonwoven fabric body, cross sections of the microfine fiber bundles exist in a density of from 1000 to 3000/mm2in average. The raised artificial leathers and grain-finished artificial leathers made from the substrate for artificial leathers are excellent in the properties which are hitherto difficult to be combined.

REFERENCES:
patent: 6716776 (2004-04-01), Morishima et al.
patent: 2007/0231547 (2007-10-01), Makimura et al.
patent: 0 651 090 (1995-05-01), None
patent: 1 541 750 (2005-06-01), None
patent: 1 550 767 (2005-07-01), None
patent: 1 930 495 (2008-06-01), None
patent: 53 34903 (1978-03-01), None
patent: 57 154468 (1982-09-01), None
patent: 7 173778 (1995-07-01), None
patent: 11 200219 (1999-07-01), None
patent: 2000 110060 (2000-04-01), None
patent: 2000 273769 (2000-10-01), None
patent: 2002 275748 (2002-09-01), None
patent: 2003 328276 (2003-11-01), None
patent: WO 2005-106108 (2005-11-01), None
U.S. Appl. No. 12/302,813, filed Dec. 1, 2008, Fujisawa, et al.
U.S. Appl. No. 11/917,665, filed Dec. 14, 2007, Fujisawa, et al.
U.S. Appl. No. 12/161,013, filed Jul. 16, 2008, Fujisawa, et al.
U.S. Appl. No. 12/593,399, filed Sep. 28, 2009, Tanaka, et al.

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