Title:
FLUORORESIN MATERIAL LOWLY PERMEABLE TO LIQUID CHEMICAL
Document Type and Number:
WIPO Patent Application WO/2001/040332
Kind Code:
A1
Abstract:
A resin material which has improved impermeability to liquid chemicals and improved cracking resistance while retaining the excellent heat resistance and processability inherent in FEPs. It gives a molded article suitable for use in the field of semiconductor production apparatuses, etc. The resin material and the molded article each comprises a fluorocopolymer comprising 85 to 95.5 mol% repeating units derived from tetrafluoroethylene, 5 to 10 mol% repeating units derived from hexafluoropropylene, and 0.1 to 5 mol% repeating units derived from at least one higher perfluoro(vinyl ether) represented by the formula (1): CF¿2?=CF-O-Rf?1¿ (wherein Rf?1¿ is C¿5-10? perfluoroalkyl or C¿4-17? perfluoroalkoxyalkyl).
Inventors:
TAIRA TAKAHIRO (JP)
AOYAMA TAKAHISA (JP)
OTANI KATSUHIDE (JP)
SHIMIZU TETSUO (JP)
AOYAMA TAKAHISA (JP)
OTANI KATSUHIDE (JP)
SHIMIZU TETSUO (JP)
Application Number:
PCT/JP2000/008286
Publication Date:
June 07, 2001
Filing Date:
November 24, 2000
Export Citation:
Assignee:
DAIKIN IND LTD (JP)
TAIRA TAKAHIRO (JP)
AOYAMA TAKAHISA (JP)
OTANI KATSUHIDE (JP)
SHIMIZU TETSUO (JP)
TAIRA TAKAHIRO (JP)
AOYAMA TAKAHISA (JP)
OTANI KATSUHIDE (JP)
SHIMIZU TETSUO (JP)
International Classes:
C08F214/26; C08L27/18; (IPC1-7): C08F214/26; C08L27/18
Domestic Patent References:
| WO1997039071A1 | 1997-10-23 |
Foreign References:
| JPH11210941A | 1999-08-06 | |||
| JPH11116706A | 1999-04-27 |
Attorney, Agent or Firm:
Asahina, Sohta (Tanimachi 2-chome Chuo-ku, Osaka-shi Osaka, JP)
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