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:
Apr. 11, 2000
Filed:
Jul. 06, 1998
Kazuhiko Kurihara, Itabashi-ku, JP;
Hiroshi Yazawa, Kunitachi, JP;
Toshikazu Ohishi, Kawaguchi, JP;
Yoichi Mazawa, Yono, JP;
Yuki Kuroiwa, Shiki, JP;
Shuichi Murakami, Itabashi-ku, JP;
Sadayuki Ishiyama, Setagaya, JP;
Jun Yamada, Yokosuka, JP;
Polymer Processing Research Inst., Ltd., Tokyo, JP;
Nippon Petrochemicals Company, Ltd., Tokyo, JP;
Abstract
The invention provides a nonwoven fabric of stretched filaments of different kind polymers, having a strength equal to that of a woven fabric and features including an elongation, a uniformity, good feeling, a bulkiness and a thinness, characterized in that the nonwoven fabric is provided with stretched filament webs comprising long filaments formed out of a plural kinds of thermoplastic polymers of different properties, the long filaments as a whole being aligned in one direction, and a method for manufacturing the same. The invention provides also a nonwoven fabric of stretched filaments having a high strength as well as a high bulkiness and comprising different kind polymers which is provided with a first web layer of crimped filaments and a second web layer of substantially non-crimped, stretched long filaments, and a method for manufacturing the same.