发明名称 |
CONTAINER WITH SYNTHETIC RESIN WINDOW, PREFORM, AND PREFORM INJECTION MOLDING APPARATUS |
摘要 |
To solve a problem associated with formation of a transparent window portion in a biaxially stretch blow molded container by a nozzle structure of an injection molding apparatus, provided is a biaxially stretch blow molded container that is formed with a clearly transparent window portion in a longitudinal strip shape by effectively preventing mixture and cut-in of a colored resin to the window portion. In a predetermined range extending from an upstream end to a predetermined downstream position of a flow path including a cylindrical flow path and a reduced-diameter flow path formed in a nozzle portion, a pair of guiding ribs in the form of longitudinal ridges is arranged in line to partition the flow path in a circumferential direction, and a longitudinal groove flow path is formed between the pair of guiding ribs. A molten B resin is supplied to the longitudinal groove flow path, and a molten A resin is supplied to the cylindrical flow path excluding the longitudinal groove flow path. Thus, the longitudinal strip-shaped flow path of the B resin interrupts the cylindrical flow path of the A resin in the circumferential direction. |
申请公布号 |
CA2943444(A1) |
申请公布日期 |
2014.06.05 |
申请号 |
CA20132943444 |
申请日期 |
2013.11.30 |
申请人 |
YOSHINO KOGYOSHO CO., LTD. |
发明人 |
SOYAMA, HIDEAKI;ISHII, YUSUKE |
分类号 |
B29B11/08;B29C45/17;B29C49/08 |
主分类号 |
B29B11/08 |
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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