发明名称 |
Parison and blow-molded containers and processes for production thereof. |
摘要 |
<p>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.</p> |
申请公布号 |
EP0278403(A2) |
申请公布日期 |
1988.08.17 |
申请号 |
EP19880101619 |
申请日期 |
1988.02.04 |
申请人 |
MITSUBISHI GAS CHEMICAL COMPANY, INC. |
发明人 |
SENZO, SHIMIZU;YOSHIAKI, MOMOSE;YOZO, YOSHIDA;TAKAO, OHTA |
分类号 |
B29C45/16;B29C49/00;B29C49/06;B29C49/22;B32B27/08;B65D1/02 |
主分类号 |
B29C45/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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