公开(公告)号：JPH08244100A

公开(公告)日：1996-09-24

申请号：JP5011595

申请日：1995-03-09

Applicant: MITSUI PETROCHEMICAL IND

Inventor： KASHIWA HIDENORI ,  HATA ISAO ,  NAKAMACHI KOJI ,  TSUGAWA MICHIO ,  HATAHO SUSUMU

IPC: B65D1/00 ,  B29C49/08 ,  B29C49/64 ,  B29K67/00 ,  B29L22/00 ,  B65D1/09 ,  C08J5/00 ,  C08L67/00

Abstract: PURPOSE: To provide a bottle which is not deformed and is self-standable even when sterilization treatment is performed under heating after filling by making the changing ratios of dimensions in the height direction and in the trunk diameter direction of carbon dioxide-filled drink-filled bottle before and after hot bath test each at a specified value or smaller and making the angle of falling down of the bottle after hot bath test at a specified value or larger. CONSTITUTION: A polyester bottle consisting of a polyester with a crystallization speed measured by a t1/2 temp. elevating method (140 deg.C) by means of a differential scanning calorimeter of at most 150sec is prepd. In this case, when a hot bath test wherein under a condition where a drink contg. 2.5 gas vol. carbon dioxide is filled and sealed at 23 deg.C, the bottle is immersed in a hot bath at 70 deg.C for 1 hour is performed, the following conditions should be satisfied. The condition 1: the changing ratio in the height direction of the carbon dioxide-filled drink-filled bottle before and after the hot bath test is at most 5% and the changing ratio in the trunk diameter is at most 5%. The condition 2: the angle of falling down of the bottle 1 after the hot bath test is at least 10 deg..

公开(公告)号：JPS61272110A

公开(公告)日：1986-12-02

申请号：JP11423885

申请日：1985-05-29

Applicant: MITSUI PETROCHEMICAL IND ,  TOYO INK MFG CO

Inventor： MAEDA SEIKI ,  HATA ISAO ,  SHIMIZU HIDEO ,  SAKUMA KANA

IPC: B29C31/10 ,  B29B9/16 ,  B29C47/10

Abstract: PURPOSE:To prevent working environment from being polluted and improve color changeover efficiency by a method wherein uncolored particulate resin is fed to the hopper of a molding machine and at the same time liquid coloring agent is fed to a screw part in the downstream of the hopper. CONSTITUTION:Uncolored particulate thermoplastic resin or natural resin is fed to the hopper 1 of an injection molding machine A. And liquid coloring agent, which is stored in a tank 3 and metered by a metering pump 4, is poured in a screw part 2 in the downstream side of the hopper 1. Accordingly, the premixing process in manufacturing precolored pellets eliminated and consequently the reduction and rationalization of working process are realized. At the same time, the pollution of environment due to the dusts of resin, pigment and the like during mixing is prevented from developing. Further, because the liquid-coloring agent is fed to the screw part in the downstream of the hopper, the washing of the hopper during the change of color is made unnecessary and consequently the color changeover efficiency is improved.