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:
May. 24, 2011
Filed:
Apr. 22, 2004
Ryuji Suzuka, Moriyama, JP;
Mitsuji Nakakita, Moriyama, JP;
Ryuji Suzuka, Moriyama, JP;
Mitsuji Nakakita, Moriyama, JP;
Asahi Kasei Fibers Corporation, Osaka-Shi, JP;
Abstract
The present invention provides a laminated nonwoven fabric wherein the nonwoven fabric is a laminated one formed by integrating, through compressive bonding, a stacked nonwoven fabric structure comprising an upper and a lower thermoplastic synthetic filamentary fiber layer that have a fiber diameter from 7 μm or more to 20 μm, and an intermediate layer composed of thermoplastic synthetic fine fibers that have a fiber diameter of 5 μm or less, the laminated nonwoven fabric having an intimately mixed structure in which a portion of the fine fibers is intruded into at least one face side of the filamentary fiber layers with an intrusion index of 0.36 or more to bond, surround or interlace the filamentary fibers, a basis of weight of from 10 g or more to 250 g/m, and a bulk density of 0.20 g/cmor more.