Patent ID: 9382029
Filing Date: 2016-07-05
CPC Classification: B29C,B29K,B29L,B65D

Claim Text:
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.