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:
Jun. 27, 2000
Filed:
Nov. 12, 1997
Applicant:
Inventors:
Jiro Yoshimura, Tokyo, JP;
Akira Sakamoto, Tokyo, JP;
Hirotoshi Aikawa, Hokkaido, JP;
Yoichi Yamazaki, Tokyo, JP;
Assignee:
Nippon Paper Industries, Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ;
U.S. Cl.
CPC ...
428152 ; 428153 ; 428154 ; 428219 ; 428220 ; 428338 ; 428340 ; 442334 ; 442385 ; 442387 ; 442408 ; 442412 ; 442413 ;
Abstract
The present invention overcomes drawbacks of prior composite sheets consisting of a spun-bonded nonwoven fabric and pulp fibers and provides an inexpensive composite sheet with excellent draping qualities, a nearly fabric-like touch and good usability. According to the present invention, a composite sheet made by entangling a web of thermoplastic filaments with pulp fibers under water stream is creped to increase the elongation in machine direction as high as in cross direction enough to obtain a usability equal to those of fabric wipers.