发明授权
- 专利标题: Multi-layer bottle
- 专利标题(中): 多层瓶
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申请号: US12160469申请日: 2007-01-15
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公开(公告)号: US08778470B2公开(公告)日: 2014-07-15
- 发明人: Jun Mitadera , Katsuya Maruyama , Kazunobu Maruo , Tomonori Kato
- 申请人: Jun Mitadera , Katsuya Maruyama , Kazunobu Maruo , Tomonori Kato
- 申请人地址: JP Tokyo
- 专利权人: Mitsubishi Gas Chemical Company, Inc.
- 当前专利权人: Mitsubishi Gas Chemical Company, Inc.
- 当前专利权人地址: JP Tokyo
- 代理机构: Antonelli, Terry, Stout & Kraus, LLP.
- 优先权: JP010040/2006 20060118
- 国际申请: PCT/JP2007/050420 WO 20070115
- 国际公布: WO2007/083598 WO 20070726
- 主分类号: B32B1/02
- IPC分类号: B32B1/02 ; C08F283/04
摘要:
There is provided a multilayer bottle including outermost and innermost layers each made mainly of a polyester (A) and at least one barrier layer interposed between the outermost and innermost layers. The polyester (A) is a thermoplastic resin obtained by polymerizing a dicarboxylic acid component containing 80 mol % or more of terephthalic acid with a diol component containing 80 mol % or more of ethylene glycol. The barrier layer is composed of a polyamide (B) and a polyamide (C). The polyamide (B) is obtained by polycondensing a diamine component containing 70 mol % or more of m-xylylenediamine with a dicarboxylic acid component containing 70 mol % or more of an α,ω-linear aliphatic dicarboxylic acid having 4 to 20 carbon atoms. The polyamide (C) has a higher saturation water content than that of the polyamide (B) as measured at 23° C. and 50% RH under 1 atm, and a content of the polyamide (C) in the barrier layer is 20% by weight or less on the basis of a weight of the barrier layer. The multilayer bottle hardly suffers from delamination upon dropping or upon exposure to impact and, therefore, is not required to have a shape with less irregularities or less bends for preventing the delamination, and further has a large freedom of design choice.
公开/授权文献
- US20100233401A1 Multi-Layer Bottle 公开/授权日:2010-09-16
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