The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 09, 2010
Filed:
Jan. 23, 2004
Daisuke Nishiguchi, Sodegaura, JP;
Kenichi Suzuki, Sodegaura, JP;
Satoshi Yamasaki, Sodegaura, JP;
Shigeyuki Motomura, Sodegaura, JP;
Hisashi Kawanabe, Sodegaura, JP;
Daisuke Nishiguchi, Sodegaura, JP;
Kenichi Suzuki, Sodegaura, JP;
Satoshi Yamasaki, Sodegaura, JP;
Shigeyuki Motomura, Sodegaura, JP;
Hisashi Kawanabe, Sodegaura, JP;
Mitsui Chemicals, Inc, Tokyo, JP;
Abstract
A spunbonded elastic nonwoven fabric according to the invention comprises fibers formed from a polymer comprising a thermoplastic polyurethane elastomer, wherein the thermoplastic polyurethane elastomer has a starting temperature for solidifying of 65° C. or above as measured by a differential scanning calorimeter (DSC) and contains 3.00×10or less polar-solvent-insoluble particles per g as counted on a particle size distribution analyzer, which is based on an electrical sensing zone method, equipped with an aperture tube having an orifice of 100 μm in diameter, and wherein the fibers have diameters such that the standard deviation of fiber diameters (Sn) divided by the average fiber diameter (X) (Sn/X) gives a value of 0.15 or less.