Title:
POLYTETRAFLUOROETHYLENE THIN FILM AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2020/253332
Kind Code:
A1
Abstract:
Provided is a polytetrafluoroethylene thin film and a manufacturing method therefor. The polytetrafluoroethylene thin film of the present invention has excellent characteristics of high strength and low shrinkage rate at high temperatures, addressing the limitations of application of common polytetrafluoroethylene thin films on the market having either high strength with high shrinkage rate or low strength with low shrinkage rate. The polytetrafluoroethylene thin film of the invention has excellent flatness, strong wear resistance, high strength, and can effectively inhibit thermal shrinkage. In addition, the manufacturing method of the polytetrafluoroethylene thin film of the present invention is simple and easy to conduct, and has high production efficiency.
Inventors:
LI XU (CN)
TIAN SONG (CN)
WATANABE YOSHINORI (JP)
TIAN SONG (CN)
WATANABE YOSHINORI (JP)
Application Number:
PCT/CN2020/083896
Publication Date:
December 24, 2020
Filing Date:
April 09, 2020
Export Citation:
Assignee:
NITTO DENKO SHANGHAI SONGJIANG CO LTD (CN)
NITTO DENKO CORP (JP)
NITTO DENKO CORP (JP)
International Classes:
C08L27/18; B23Q15/08; B29C43/46; B29C55/02; B29C67/04; B29D7/00; C08J5/18; C09J7/20; B29L7/00
Domestic Patent References:
| WO2012026401A1 | 2012-03-01 |
Foreign References:
| CN101491945A | 2009-07-29 | |||
| CN106042411A | 2016-10-26 | |||
| CN107599461A | 2018-01-19 | |||
| CN105666889A | 2016-06-15 | |||
| CN103867716A | 2014-06-18 | |||
| JP2002370279A | 2002-12-24 | |||
| US5474727A | 1995-12-12 | |||
| CN106700350A | 2017-05-24 |
Other References:
See also references of EP 3988616A4
Attorney, Agent or Firm:
LINDA LIU & PARTNERS (CN)
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