发明公开
- 专利标题: MULTI-LAYER SHEET
- 专利标题(中): 多层薄膜
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申请号: EP04788238申请日: 2004-09-28
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公开(公告)号: EP1674230A4公开(公告)日: 2010-11-10
- 发明人: MATSUMOTO HIROTAKE
- 申请人: SEKISUI CHEMICAL CO LTD
- 专利权人: SEKISUI CHEMICAL CO LTD
- 当前专利权人: SEKISUI CHEMICAL CO LTD
- 优先权: JP2003342194 2003-09-30
- 主分类号: B29C43/32
- IPC分类号: B29C43/32 ; B29C43/00 ; B29C43/20 ; B32B27/00 ; B32B27/08 ; H05K3/28 ; H05K3/46
摘要:
A multi-layer sheet which has a follow-up layer being composed of a resin composition containing a resin having a melting point, which is the melting peak temperature measured by DSC, in the range of 50 to 130 °C as a primary component, and a releasing layer being composed of a resin composition containing a resin having a melting point of 200 °C or higher as a primary component and being laminated on the above follow-up layer, wherein when the two releasing layers of the above multi-layer sheets are closely contacted with each other under a condition of 170 °C and 3 MPa for 30 minutes, they exhibit a blocking force of 0.1 N/cm or less as measured in accordance with ASTM D1893. The multi-layer sheet is excellent in heat resistance, releasing characteristics and follow-up characteristics to an irregular surface, exhibits excellent non-staining characteristics and also can be easily disposed of after use.
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