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. 30, 2019
Filed:
Aug. 25, 2015
Applicant:
3m Innovative Properties Company, St. Paul, MN (US);
Inventors:
Liming Song, Woodbury, MN (US);
Sachin Talwar, Woodbury, MN (US);
John D. Stelter, Osceola, WI (US);
John M. Sebastian, Oakdale, MN (US);
Nathan E. Schultz, Lakeland, MN (US);
Eric M. Moore, Roseville, MN (US);
Fuming B. Li, Woodbury, MN (US);
Andrew R. Fox, Oakdale, MN (US);
Michael R. Berrigan, Oakdale, MN (US);
Zackary J. Becker, St. Paul, MN (US);
Assignee:
3M Innovative Properties Company, St. Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 53/22 (2006.01); D04H 3/11 (2012.01); D04H 3/14 (2012.01); B01D 39/16 (2006.01); B01D 46/00 (2006.01); B01D 46/52 (2006.01); D01D 5/16 (2006.01); D04H 3/011 (2012.01);
U.S. Cl.
CPC ...
D04H 3/11 (2013.01); B01D 39/163 (2013.01); B01D 46/0032 (2013.01); B01D 46/521 (2013.01); D01D 5/16 (2013.01); D04H 3/011 (2013.01); D04H 3/14 (2013.01); B01D 2239/0435 (2013.01); B01D 2239/10 (2013.01); D10B 2505/04 (2013.01);
Abstract
Spunbonded electret webs comprising polylactic acid fibers, in which at least some of the polylactic acid fibers are meltspun, drawn, charged fibers that include charging additive; and, methods of making such fibers and webs.