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. 31, 2017
Filed:
Jun. 27, 2012
Xiaoshuan Fu, Shanghai, CN;
Rui Chen, Shanghai, CN;
Qiang Xu, Shanghai, CN;
Jean Le Normand, Versailles, FR;
Hendrik Both, Rijen, NL;
Tien T. Wu, Woodbury, MN (US);
Andrew R. Fox, Oakdale, MN (US);
Xiaoshuan Fu, Shanghai, CN;
Rui Chen, Shanghai, CN;
Qiang Xu, Shanghai, CN;
Jean Le normand, Versailles, FR;
Hendrik Both, Rijen, NL;
Tien T. Wu, Woodbury, MN (US);
Andrew R. Fox, Oakdale, MN (US);
3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US);
Abstract
A non-woven electret fibrous web for electrostatic adsorption and odor elimination and the preparation process thereof. In certain exemplary embodiments, the non-woven electret fibrous web includes a multiplicity of electret fibers, at least one of a plurality of photo-catalytic fibers or a plurality of multi-component fibers; and optionally, at least one of a plurality of chemically-active particulates, a plurality of carbon-based fibers, or a plurality of mono-component thermoplastic fibers. In other exemplary embodiments, carding and cross-lapping or air-laying processes are disclosed for making nonwoven fibrous webs including electret fibers and one or more of photocatalytic fibers, chemically-active particulates, multi-component fibers, mono-component thermoplastic fibers, or carbon-based fibers. In some exemplary embodiments, exemplary non-woven electret fibrous webs of the disclosure exhibit superior gas permeation characteristics, high adsorption characteristics for airborne contaminants, as well as an odor elimination function.