公开(公告)号：JPH05306360A

公开(公告)日：1993-11-19

申请号：JP28456590

申请日：1990-10-23

Applicant: KAO CORP

Inventor： ITO TAKASHI ,  AMIYA TSUYOSHI ,  TSUDA YUKA ,  YASUDA YUTAKA

IPC: B65D1/00 ,  B65D1/02 ,  C08L23/00 ,  C08L23/06 ,  C08L23/08 ,  C08L63/00 ,  C08L63/08 ,  C08L67/00 ,  C08L67/02 ,  B65D1/09

Abstract: PURPOSE:To obtain a packaging material excellent in mechanical characteristics and elevated gas barrier properties, and composed of a composition obtained by blending a specific resin composition with a specific amount of a specific glycidyl containing copolymer. CONSTITUTION:A resin composition made by blending (A) a resin composition composed of (i) 10-90wt.% polyester resin (preferably the resin having 0.6-1.5dl/g intrinsic viscosity at 25 deg.C in a mixed solvent consisting of phenol- tetrachloroethane (weight ratio 6:4) and (ii) 90-10% polyethylene (preferably a low density polyethylene having a melt viscosity given by 0.1-20g/10min. flow rate) and (B) 1-30 parts (preferably 2-20 parts) glycidyl containing copolymer having ethylene and a glycidyl ester of a beta-unsaturated carboxylic acid (preferably glycidyl methacrylate) as essential components is drawn to obtain the objective packaging material.

公开(公告)号：JPH0411651A

公开(公告)日：1992-01-16

申请号：JP11377190

申请日：1990-04-27

Applicant: KAO CORP

Inventor： HOSOKAWA YASUTOKU ,  TSUDA YUKA ,  AMIYA TSUYOSHI ,  YASUDA YUTAKA

IPC: C08K5/13 ,  C08L67/00 ,  C08L67/02

Abstract: PURPOSE:To improve gas barrier properties without adversely affecting transparency and mechanical properties by compounding an arom. polyester with a specific compd. CONSTITUTION:An acid component contg. at least 60mol% arom. dicarboxylic acid and at least 50mol% acid selected from the group consisting of terephthalic acid, a naphthalenedicarboxylic acid, and a cyclohexanedicarboxylic acid is copolymerized with a glycol component to give an arom. polyester having an intrinsic viscosity (in phenol/tetrachloroethane in a wt. ratio of 6/4, at 25 deg.C) of 0.5dl/g or higher. 100 pts.wt. said polyester is compounded with 0.1-3 pts.wt. at least one compd. selected from the group consisting of 1-naphthol, 2-naphthol, triphenylcarbinol, hydroquinone, resorcinol, and catechol.