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. 14, 2020
Filed:
Apr. 28, 2015
Applicant:
3m Innovative Properties Company, St. Paul, MN (US);
Inventors:
Assignee:
3M Innovative Properties Company, St. Paul, MN (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
D04H 13/00 (2006.01); B32B 5/02 (2006.01); B32B 5/26 (2006.01); D04H 1/4382 (2012.01); D04H 1/542 (2012.01); D04H 1/56 (2006.01); D04H 5/06 (2006.01); G10K 11/168 (2006.01); G10K 11/162 (2006.01); D04H 5/02 (2012.01); B60R 13/08 (2006.01); B32B 25/08 (2006.01); B32B 25/14 (2006.01); B32B 27/08 (2006.01); B32B 27/32 (2006.01); B32B 27/36 (2006.01);
U.S. Cl.
CPC ...
D04H 13/00 (2013.01); B32B 5/022 (2013.01); B32B 5/26 (2013.01); B32B 25/08 (2013.01); B32B 25/14 (2013.01); B32B 27/08 (2013.01); B32B 27/32 (2013.01); B32B 27/36 (2013.01); B60R 13/08 (2013.01); B60R 13/0861 (2013.01); D04H 1/4382 (2013.01); D04H 1/542 (2013.01); D04H 1/56 (2013.01); D04H 5/02 (2013.01); D04H 5/06 (2013.01); G10K 11/162 (2013.01); G10K 11/168 (2013.01); B32B 2307/102 (2013.01); B32B 2605/00 (2013.01);
Abstract
A nonwoven fabric web having an excellent sound absorption coefficient in a frequency range from 800 Hz to 1000 Hz when used as a sound absorbing member for a vehicle exterior. The nonwoven fabric web including a nonwoven fabric having meltblown fibers and binder fibers arranged so as to be confounded with the meltblown fibers and fused with the meltblown fibers at some of the confounding points at the very least, the weight per unit area of the nonwoven fabric being from 400 g/mto 1500 g/m, and the flexural rigidity of the nonwoven fabric being from 2.0 N/50 mm to 20.0 N/50 mm.