Title:
PACKING MATERIAL OF POLYESTER
Document Type and Number:
Japanese Patent JPH05209116
Kind Code:
A
Abstract:
PURPOSE:To obtain a packing material of polyester having excellent fragrance retention, spreadability, impact resistance, etc., comprising an inner layer composed of a composition consisting of a specific copolymerized polyethylene terephthalate and an ethylene copolymer ionomer. CONSTITUTION:A packing material has a layer, made of a composition comprising (A) 70-95 pts.wt. copolymerized polyethylene terephthalate which is derived from A1: terephthalic acid and optionally isophthalic acid and A2: ethylene glycol and cyclohexanedimethanol (molar ratio of the former/the latter of 95/5 to 75/25) and has 180-240 deg.C endothermic peak by DSC and 10-40 joule/g endotherm, (B) 5-30 pts.wt. ionomer wherein COOH of ethylene/unsaturated carboxylic acid copolymer is at least partially neutralized with a metal cation (preferably bivalent ion), preferably further (C) a nonpolar ethylene (co)polymer (preferably straight-chain low-density polyethylene) and (D) an antioxidant, as an inner layer.
Inventors:
KUTSUWA YOSHIKAZU
ISHII SHIGENORI
FUKADA TORU
ISHII SHIGENORI
FUKADA TORU
Application Number:
JP14144692A
Publication Date:
August 20, 1993
Filing Date:
June 02, 1992
Export Citation:
Assignee:
MITSUI DU PONT POLYCHEMICAL
International Classes:
B65D65/40; B65D65/02; C08F8/42; C08F210/00; C08F210/02; C08L23/26; C08L67/00; C08L67/02; (IPC1-7): B65D65/40; C08F8/42; C08F210/02; C08L23/26; C08L67/02
Attorney, Agent or Firm:
Shunichiro Suzuki
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