发明名称 |
METHOD OF MOULDING A BLOW-MOULDED BOTTLE-SHAPED CONTAINER |
摘要 |
<p>A hollow blow-molded bottle-shaped container of a biaxially oriented polyethylene terephthalate which advantageously has a crystallized outer peripheral portion at the neck portion except the boundary between the neck portion and the body portion and non-crystallized inner peripheral portion thereat. This bottle-shaped container is molded by a method of molding the same, which method advantageously has the steps of injection-molding a piece or parison formed at the outer peripheral surface of a neck root part forming portion in a downwardly flared tapered shape, and crystallizing by a heat treatment the outer peripheral surface portion of the neck root part forming portion. Thus, the deterioration in the physical properties of the neck and shoulder portions of the bottle-shaped container thus finally blow-molded can be reduced.</p> |
申请公布号 |
HK8690(A) |
申请公布日期 |
1990.02.09 |
申请号 |
HK19900000086 |
申请日期 |
1990.02.01 |
申请人 |
YOSHINO KOGYOSHO CO.,LTD. |
发明人 |
HAYASHI, YOSHIAKI;TAKADA, TAKUZO |
分类号 |
B29C49/00;B29C49/06;B29C49/64;B65D1/02;(IPC1-7):B29C49/08 |
主分类号 |
B29C49/00 |
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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