Invention Grant
- Patent Title: Electret webs with charge-enhancing additives
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Application No.: US14784634Application Date: 2014-04-15
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Publication No.: US09815067B2Publication Date: 2017-11-14
- Inventor: Nathan E. Schultz , Fuming B. Li , John M. Sebastian
- Applicant: 3M INNOVATIVE PROPERTIES COMPANY
- Applicant Address: US MN St. Paul
- Assignee: 3M Innovative Properties Company
- Current Assignee: 3M Innovative Properties Company
- Current Assignee Address: US MN St. Paul
- Agent Jeffrey M. Olofson
- International Application: PCT/US2014/034076 WO 20140415
- International Announcement: WO2014/172308 WO 20141023
- Main IPC: B03C3/28
- IPC: B03C3/28 ; B01D39/16 ; H01B1/12
Abstract:
Electret webs include a thermoplastic resin and a charge-enhancing additive. The charge-enhancing additive is an arylamino-substituted benzoic acid or an arylamino-substituted benzoic acid salt. The electret webs may be a non-woven fibrous web or a film. The electret webs are suitable for use as filter media.
Public/Granted literature
- US20160067717A1 ELECTRET WEBS WITH CHARGE-ENHANCING ADDITIVES Public/Granted day:2016-03-10
Information query
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