Invention Grant
- Patent Title: Method for producing low molecular weight polytetrafluoroethylene, low molecular weight polytetrafluoroethylene, and powder
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Application No.: US16696970Application Date: 2019-11-26
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Publication No.: US10793650B2Publication Date: 2020-10-06
- Inventor: Ken Yoshida , Hirotoshi Yoshida , Keisuke Hagi , Masayuki Tsuji , Taketo Kato , Yuuji Tanaka , Taku Yamanaka , Kazuya Kawahara , Masamichi Sukegawa , Kazutaka Hosokawa
- Applicant: DAIKIN INDUSTRIES, LTD.
- Applicant Address: JP Osaka
- Assignee: DAIKIN INDUSTRIES, LTD.
- Current Assignee: DAIKIN INDUSTRIES, LTD.
- Current Assignee Address: JP Osaka
- Agency: Sughrue Mion, PLLC
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@869950c
- Main IPC: C08F2/46
- IPC: C08F2/46 ; C08F2/50 ; C08G61/04 ; C08F8/50 ; C08J3/28 ; C08K5/01 ; C08K5/03
Abstract:
Low molecular weight polytetrafluoroethylene powder having a complex viscosity of 1×102 to 7×105 Pa·s at 380° C., containing 5 or less carboxyl groups at ends of the molecule chain per 106 carbon atoms in the main chain, and being substantially free from C8-C14 perfluorocarboxylic acids and salts thereof. Also disclosed is a method for producing low molecular weight polytetrafluoroethylene.
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