Title:
クロロトリフルオロエチレン共重合体含有積層体及びその製造方法
Document Type and Number:
Japanese Patent JP4816639
Kind Code:
B2
Abstract:
The present invention provides a CTFE copolymer-containing laminate produced by coextrusion molding of a PFA and/or FEP layer and a CTFE copolymer layer with the thermal degradation of the latter layer being suppressed and the liquid chemical impermeability and gas barrier properties, among others, being improved as well as a method of producing the same. The present invention is a chlorotrifluoroethylene copolymer-containing laminate having a layer (A) comprising a tetrafluoroethylene/perfluoro(vinyl ether) copolymer and/or a tetrafluoroethylene/hexafluoropropylene copolymer and a layer (B) comprising a chlorotrifluoroethylene copolymer, the layer (A) and the layer (B) being formed by coextrusion molding under a condition such that the temperature of a flow path (pa) through which a layer (A)-forming material (a) flows is 300 to 400°C and the temperature of a flow path (pb) through which a layer (B)-forming material (b) flows is 250 to 350°C prior to the material (a) and the material (b) coming into contact with each other in a multilayer die.
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Inventors:
Takahiro Kitahara
Takeshi Shimono
Takahisa Aoyama
Shingo Sakakibara
Takeshi Shimono
Takahisa Aoyama
Shingo Sakakibara
Application Number:
JP2007507203A
Publication Date:
November 16, 2011
Filing Date:
March 10, 2006
Export Citation:
Assignee:
Daikin Industries, Ltd.
International Classes:
B32B27/30; B29C48/08; B29C48/09; B29C48/04; B29K27/12; B29L7/00; B29L23/00
Domestic Patent References:
| JPH09137900A | 1997-05-27 | |||
| JP2004074692A | 2004-03-11 | |||
| JP2001517158A | 2001-10-02 | |||
| JPS63222833A | 1988-09-16 | |||
| JPH10274898A | 1998-10-13 | |||
| JPH0420507A | 1992-01-24 | |||
| JPH1087746A | 1998-04-07 |
Foreign References:
| WO2003089232A1 | 2003-10-30 | |||
| WO2001070485A1 | 2001-09-27 | |||
| WO2000047641A1 | 2000-08-17 |
Attorney, Agent or Firm:
Atomi International Patent Office
Yasuo Yasutomi
Yasuo Yasutomi