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:
Oct. 01, 2024
Filed:
Jun. 11, 2019
Applicant:
Toray Industries, Inc., Tokyo, JP;
Inventors:
Assignee:
Toray Industries, Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D04H 3/16 (2006.01); D04H 3/011 (2012.01); D04H 3/147 (2012.01);
U.S. Cl.
CPC ...
D04H 3/16 (2013.01); D04H 3/011 (2013.01); D04H 3/147 (2013.01); D10B 2321/02 (2013.01); D10B 2401/062 (2013.01); D10B 2403/0211 (2013.01); D10B 2505/04 (2013.01); Y10T 442/681 (2015.04);
Abstract
Provided is a spunbond nonwoven fabric for use in filters which has excellent rigidity, folding endurance, and uniformity of a weight per unit area, and which also has excellent dust collection performance and mechanical properties. The spunbond nonwoven fabric for use in filters includes a thermoplastic continuous filament and has a partially fused portion. The nonwoven fabric has a stiffness of 2 mN or more and 100 mN or less, a weight per unit area-CV value of 5% or less, and a weight per unit area of 150 g/mor more and 300 g/mor less.