发明授权
- 专利标题: Parison and blow-molded container and processes for production thereof
- 专利标题(中): 比例和吹塑容器及其生产方法
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申请号: US394292申请日: 1989-08-15
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公开(公告)号: US4994313A公开(公告)日: 1991-02-19
- 发明人: Senzo Shimizu , Yoshiaki Momose , Yozo Yoshida , Takao Ohta
- 申请人: Senzo Shimizu , Yoshiaki Momose , Yozo Yoshida , Takao Ohta
- 申请人地址: JPX 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: JPX Tokyo
- 优先权: JPX62-24768 19870206; JPX62-297759 19871127
- 主分类号: B29C45/16
- IPC分类号: B29C45/16 ; B29C49/00 ; B29C49/06 ; B29C49/22 ; B32B27/08 ; B65D1/02
摘要:
A parison, as a precursor of a container, composed at least of a thermoplastic resin (resin A) and another thermoplastic resin having excellent gas-barrier property (resin B) and containing a multilayered resin layer at least in an intermediate layer between an outermost layer and an innermost layer each composed of resin A at parts other than the open end part of the mouth portion of the parison, or wholly in the parison, said multilayered resin layer being formed by using an injection-molding machine equipped with a static mixing-stirring device provided in a nozzle portion of an injection cylinder, or in a mold, or in a resin flow passage between the nozzle portion and a mold, and injecting the resins A and B through the static mixing-stirring device so that flows of the resins A and B are divided in a plurality of thin layers parallel to the flowing direction; and a process for production thereof. A container obtained by biaxially stretching and blow-molding the said parison has excellent transparency, gas-barrier property and mechanical strength.
公开/授权文献
- USD276878S Hand-held barbecue spit 公开/授权日:1984-12-25