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:
Nov. 08, 2022
Filed:
Oct. 26, 2018
Applicant:
Mitsui Chemicals, Inc., Tokyo, JP;
Inventors:
Kozo Iiba, Ichihara, JP;
Takeshi Kikutani, Tokyo, JP;
Wataru Takarada, Tokyo, JP;
Sho Hatano, Tokyo, JP;
Assignee:
MITSUI CHEMICALS, INC., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 39/16 (2006.01); D04H 3/007 (2012.01); D04H 3/16 (2006.01);
U.S. Cl.
CPC ...
B01D 39/1623 (2013.01); D04H 3/007 (2013.01); D04H 3/16 (2013.01); B01D 2239/0618 (2013.01); B01D 2239/0622 (2013.01); B01D 2239/1233 (2013.01); B01D 2239/1291 (2013.01); D10B 2321/022 (2013.01); D10B 2505/04 (2013.01);
Abstract
A nonwoven fabric, including fibers, in which the fibers have an elongational viscosity, as measured under conditions at an elongational strain rate of 2.5×10(1/s) and a temperature of 160° C., of from 430 Pa·s to 1200 Pa·s, and a ratio of the elongational viscosity (Pa·s) to a shear viscosity (Pa·s) of the fiber, as measured under conditions at a shear strain rate of 2.5×10(1/s) and a temperature of 160° C., is from 35 to 65.