Invention Grant
- Patent Title: Fluoropolymer fibre
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Application No.: US14905443Application Date: 2014-07-15
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Publication No.: US10364514B2Publication Date: 2019-07-30
- Inventor: Julio A. Abusleme , Giambattista Besana , Mattia Bassi , Christine Hamon , Chiara Gualandi , Maria Letizia Focarete , Andrea Zucchelli
- Applicant: SOLVAY SA
- Applicant Address: BE Brussels
- Assignee: SOLVAY SA
- Current Assignee: SOLVAY SA
- Current Assignee Address: BE Brussels
- Priority: EP13176447 20130715
- International Application: PCT/EP2014/065080 WO 20140715
- International Announcement: WO2015/007706 WO 20150122
- Main IPC: D01F6/32
- IPC: D01F6/32 ; B01D71/32 ; C08F214/18 ; D04H1/4318 ; D04H1/728 ; D01D5/00 ; D01F1/10 ; D01F6/48 ; B01D67/00 ; B01D71/76 ; D02J1/00 ; H01M10/0525 ; H01M2/16 ; H01M10/052

Abstract:
The present invention pertains to a process for manufacturing one or more fluoropolymer fibers, said process comprising the following steps: (i) providing a liquid composition [composition (C1)] comprising: —at least one fluoropolymer comprising at least one hydroxyl end group [polymer (FOH)L and —a liquid medium comprising at least one organic solvent [solvent (S)]; (ii) contacting the composition (C1) provided in step (i) with at least one metal compound [compound (M)] of formula (I) here below: X4−mAYm (I) wherein X is a hydrocarbon group, optionally comprising one or more functional groups, m is an integer from 1 to 4, A is a metal selected from the group consisting of Si, Ti and Zr, and Y is a hydrolysable group selected from the group consisting of an alkoxy group, an acyloxy group and a hydroxyl group, thereby providing a liquid composition [composition (C2)]; (iii) submitting to at least partial hydrolysis and/or polycondensation the composition (C2) provided in step (ii) thereby providing a liquid composition [composition (C3)] comprising at least one fluoropolymer hybrid organic/inorganic composite; (iv) processing the composition (C3) provided in step (iii) by electrospinning thereby providing one or more fluoropolymer fibers; (v) drying the fluoropolymer fiber(s) provided in step (iv); and (vi) optionally, submitting to compression the fluoropolymer fiber(s) provided in step (v) at a temperature comprised between 50° C. and 300° C. The invention also pertains to a process for the manufacture of said fluoropolymer fiber(s) and to uses of said fluoropolymer fiber(s) in various applications.
Public/Granted literature
- US20160160392A1 FLUOROPOLYMER FIBRE Public/Granted day:2016-06-09
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