Invention Grant
- Patent Title: Process for producing elastic fiber, process for producing elastic fiber article, elastic fiber and elastic fiber article
-
Application No.: US16478344Application Date: 2018-02-08
-
Publication No.: US11339504B2Publication Date: 2022-05-24
- Inventor: Yasuyuki Suzuki
- Applicant: BASF SE
- Applicant Address: DE Ludwigshafen am Rhein
- Assignee: BASF SE
- Current Assignee: BASF SE
- Current Assignee Address: DE Ludwigshafen am Rhein
- Agency: Grüneberg and Myers PLLC
- Priority: JPJP2017-023520 20170210,EP17161361 20170316
- International Application: PCT/EP2018/053171 WO 20180208
- International Announcement: WO2018/146192 WO 20180816
- Main IPC: D01D5/10
- IPC: D01D5/10 ; D01F6/70 ; D01D1/06
Abstract:
A process for producing an elastic fiber comprising: melt-spinning a raw material composition, which comprises a thermoplastic polyurethane elastomer, at a spinning rate of 2,500 m/min to 10,000 m/min. The thermoplastic polyurethane elastomer comprises soft-segments obtained by reacting a polyether polyol as a long chain polyol.
Information query
