Invention Grant
- Patent Title: Method of producing liquid crystal polyester fibers
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Application No.: US16017205Application Date: 2018-06-25
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Publication No.: US10584429B2Publication Date: 2020-03-10
- Inventor: Chieko Kawamata , Yusuke Ono , Hiroo Katsuta , Yoshitsugu Funatsu
- Applicant: Toray Industries, Inc.
- Applicant Address: JP Tokyo
- Assignee: Toray Industries, Inc.
- Current Assignee: Toray Industries, Inc.
- Current Assignee Address: JP Tokyo
- Agency: DLA Piper LLP (US)
- Priority: JP2011-072020 20110329; JP2011-076158 20110330; JP2011-263399 20111201
- Main IPC: C08G63/16
- IPC: C08G63/16 ; C08G63/18 ; C08G63/181 ; C08G63/183 ; C08G63/19 ; C08G63/191 ; C08G63/60 ; C08G63/80 ; C08J7/12 ; D01D5/08 ; D01D10/02 ; D01D10/06 ; D06M11/68 ; D06M11/69 ; D06M11/70 ; D06M11/71 ; D06M11/77 ; D06M13/282 ; D01F6/62 ; D01F6/84 ; D06M11/79 ; D06M13/292 ; D06M23/08 ; D02J13/00 ; B29D99/00 ; C08G63/40 ; D06M101/32
Abstract:
A method of producing a liquid crystalline polyester fiber includes subjecting a yarn prepared by melt spinning a liquid crystalline polyester to a solid-phase polymerization after applying inorganic particles (A) and a phosphate-based compound (B) to the yarn. The method can optionally include cleaning the liquid crystalline polyester fiber after the solid-phase polymerization.
Public/Granted literature
- US20180305841A1 METHOD OF PRODUCING LIQUID CRYSTAL POLYESTER FIBERS Public/Granted day:2018-10-25
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