发明申请
- 专利标题: CHLOROTRIFLUOROETHYLENE COPOLYMER CONTAINING LAMINATE AND PROCESS FOR PRODUCTION THEREOF
- 专利标题(中): 包含层压板的氯乙烯共聚物及其生产方法
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申请号: US11908286申请日: 2006-03-10
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公开(公告)号: US20090053443A1公开(公告)日: 2009-02-26
- 发明人: Takahiro Kitahara , Takeshi Shimono , Takahisa Aoyama , Shingo Sakakibara
- 申请人: Takahiro Kitahara , Takeshi Shimono , Takahisa Aoyama , Shingo Sakakibara
- 申请人地址: JP Osaka-shi, Osaka
- 专利权人: DAIKIN INDUSTRIES, LTD.
- 当前专利权人: DAIKIN INDUSTRIES, LTD.
- 当前专利权人地址: JP Osaka-shi, Osaka
- 优先权: JP2005-068105 20050310; JP2005-337789 20051122
- 国际申请: PCT/JP2006/304759 WO 20060310
- 主分类号: B32B9/00
- IPC分类号: B32B9/00 ; B29D23/00 ; B29C47/06 ; B32B1/08 ; B32B27/08
摘要:
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.