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.

Date of Patent:
Nov. 09, 2010

Filed:

Nov. 25, 2003
Applicants:

Kenichi Suzuki, Sodegaura, JP;

Hisashi Morimoto, Sodegaura, JP;

Katsuaki Harubayashi, Sodegaura, JP;

Shigeyuki Motomura, Sodegaura, JP;

Pingfan Chen, Sodegaura, JP;

Inventors:

Kenichi Suzuki, Sodegaura, JP;

Hisashi Morimoto, Sodegaura, JP;

Katsuaki Harubayashi, Sodegaura, JP;

Shigeyuki Motomura, Sodegaura, JP;

Pingfan Chen, Sodegaura, JP;

Assignee:

Mitsui Chemicals, Inc., Minato-Ku, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D04H 3/00 (2006.01); D04H 3/16 (2006.01);
U.S. Cl.
CPC ...
Abstract

An extensible nonwoven fabric comprises a fiber comprising at least two olefin-based polymers. These olefin-based polymers are of the same kind and have different induction periods of strain-induced crystallization as measured at the same temperature and shear strain rate. A composite nonwoven fabric of the invention comprises at least one layer comprising the extensible nonwoven fabric.


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