发明名称 |
Angular resin container and blow molding die |
摘要 |
Provided are an angular resin container, which while being thin, retains excellent appearance in respect of luster, transparency or the like, as well as a blow molding die for subjecting the container to biaxial stretch blow molding. Biaxial stretch blow molding is conducted with a blow molding die having a scallop height for the surface of the blow molding die, that corresponds to the side wall part of the body part of the angular resin container, of 3 to 30 μm, thereby to obtain an angular resin container having a thickness of the body part of 0.5 mm or less and in which a horizontally-directed processed part having a depth of 3 to 30 μm is formed on the outer surface of the side wall part of the body part. |
申请公布号 |
US9382029(B2) |
申请公布日期 |
2016.07.05 |
申请号 |
US201414258370 |
申请日期 |
2014.04.22 |
申请人 |
TOYO SEIKAN GROUP HOLDINGS, LTD |
发明人 |
Miura Masaki |
分类号 |
B29C49/48;B65D1/40;B65D1/02;B29C49/28;B29C49/08;B29L31/00;B29C49/06;B29C49/02 |
主分类号 |
B29C49/48 |
代理机构 |
Osha Liang LLP |
代理人 |
Osha Liang LLP |
主权项 |
1. A blow molding die for subjecting an angular resin container having a thickness of a body part of 0.5 mm or less to biaxial stretch blow molding, comprising:
a cavity that forms a shape of the angular resin container; and a parting surface in a height direction of the body part, wherein a surface of the cavity that corresponds to a side wall part of the body part comprises processing marks formed by a ball end mill, wherein a scallop height of the processing marks is 3 to 30 μm, wherein a distance between adjacent tops in the scallop height is 0.1 to 1.0 mm, and wherein the processing marks extend in a direction of cutting by the ball end mill and cross orthogonally to the height direction. |
地址 |
Tokyo JP |