发明名称 |
METHOD FOR PRODUCING SYNTHETIC RESIN CONTAINER |
摘要 |
Disclosed is a method for producing a synthetic resin container comprising: a primary blow step of forming a bottomed cylindrical preform 10 made of a thermoplastic resin into a first molded intermediate 11 by blow molding; a constriction step of constricting the first molded intermediate 11 by depressurizing the inside of the first molded intermediate 11, to obtain a second molded intermediate 12; and a secondary blow step of placing the second molded intermediate 12 in a blow mold 1 and transferring an inner surface shape of the blow mold thereto by blow molding, to mold the secondary molded intermediate 12 into a predetermined container shape. According to this constitution, even though a body portion of each container has a deeply constricted shape, the inner surface shape of the blow mold can be successfully transferred thereto, and hence the synthetic resin containers molded into a predetermined container shape with excellent molding properties can be efficiency mass-produced. |
申请公布号 |
EP2366528(A1) |
申请公布日期 |
2011.09.21 |
申请号 |
EP20090833156 |
申请日期 |
2009.12.09 |
申请人 |
TOYO SEIKAN KAISHA, LTD. |
发明人 |
MAEDA, KOUJI;HIKICHI, NORITAKA;SUGIURA, KEISHI;MIYAKAWA, NOBUHIDE;MORI, KENJI |
分类号 |
B29C49/16;B29C49/00;B29C49/48;B29L22/00 |
主分类号 |
B29C49/16 |
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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