发明申请
- 专利标题: Multilayer Structure
- 专利标题(中): 多层结构
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申请号: US11909881申请日: 2006-03-30
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公开(公告)号: US20090148641A1公开(公告)日: 2009-06-11
- 发明人: Koichi Uchida , Takashi Yamashita
- 申请人: Koichi Uchida , Takashi Yamashita
- 申请人地址: JP Okayama
- 专利权人: KURARAY CO., LTD.
- 当前专利权人: KURARAY CO., LTD.
- 当前专利权人地址: JP Okayama
- 优先权: JP2005-103298 20050331
- 国际申请: PCT/JP2006/307275 WO 20060330
- 主分类号: B32B27/34
- IPC分类号: B32B27/34 ; B32B1/08
摘要:
Provision of a multilayer structure superior in the alcohol gasoline permeation-preventing property, interlayer adhesiveness, low temperature impact resistance, heat resistance and chemical resistance. A multilayer structure comprising at least two layers of layer A consisting of a polyamide resin composition (a) comprising 30-90 mass % of a polyamide resin (X) comprising a dicarboxylic acid unit comprising 50-100 mol % of a terephthalic acid unit and/or a lo naphthalene dicarboxylic acid unit, and a diamine unit comprising 60-100 mol % of an aliphatic diamine unit having 9-13 carbon atoms, and 70-10 mass % of an impact resistance modifier, and layer B consisting of a polyamide resin composition (b) comprising 50-95 mass % of a polyamide resin (X′) comprising a dicarboxylic acid unit comprising 50-100 mol % of a terephthalic acid unit and/or a naphthalene dicarboxylic acid unit, and a diamine unit comprising 60-100 mol % of an aliphatic diamine unit having 9-13 carbon atoms, and 50-5 mass % of an impact resistance modifier, which satisfies Y≧Y′+5 wherein Y shows a content ratio (mass %) of the impact resistance modifier in layer A and Y′ shows a content ratio (mass %) of the impact resistance modifier in layer B.
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