公开(公告)号：EP1547766A4

公开(公告)日：2009-07-15

申请号：EP03795351

申请日：2003-09-10

Applicant: TORAY INDUSTRIES

Inventor： TANAKA HIROYUKI ,  TANAKA KUNIMASA ,  MATSUI RYOSUKE

IPC: B32B27/36 ,  C08J5/18

CPC classification number: B32B27/36 ,  B32B27/08 ,  B32B2307/518 ,  C08J5/18 ,  C08J2367/02 ,  Y10S428/91 ,  Y10T428/24942 ,  Y10T428/2495 ,  Y10T428/24975 ,  Y10T428/28 ,  Y10T428/2817 ,  Y10T428/2826 ,  Y10T428/31681 ,  Y10T428/31786

Abstract: The biaxially oriented polyester film of the present invention contains a polyester having a primary melting point of 245 to 265 DEG C as the main component and exhibits a drop bag strength index at 0 DEG C of at least 2.0 and a strength at break in the film longitudinal direction at 120 DEG C of at least 100 MPa. The film has superior heat resistance, mechanical strength, impact resistance, and bending resistance and is particularly suitable for packaging materials.

公开(公告)号：JP2003113259A

公开(公告)日：2003-04-18

申请号：JP2002215167

申请日：2002-07-24

Applicant: TORAY INDUSTRIES

Inventor： TANAKA KUNIMASA ,  MATSUI RYOSUKE ,  YOSHIDA MINORU

IPC: C08J5/18 ,  C08L67/02

Abstract: PROBLEM TO BE SOLVED: To provide a biaxially oriented polyester film having pinhole-resistant characteristics which a biaxially oriented nylon film has and also having good moldability which a conventional biaxially oriented polyester film and the biaxially oriented nylon film have not. SOLUTION: This biaxially oriented polyester film comprises a resin component composed of (A) 55-95 wt.% resin having 240-265 deg.C melting point and comprising >=90 wt.% polyester component composed of ethylene terephthalate and/or ethylene naphthalate and (B) 5-45 wt.% resin having 185-235 deg.C melting point and comprising >=70 wt.% polyester component, and the polyester film has properties comprising (1) >=200 MPa loss modulus (E") at a peak temperature of β disperse and (2) >=140 MPa breaking strength of the film or (1') >=55% recovery factor of deformation of the film after 20% pulling at 0 deg.C and (2) >=140 MPa breaking strength of the film.

公开(公告)号：JP2002347109A

公开(公告)日：2002-12-04

申请号：JP2001153902

申请日：2001-05-23

Applicant: TORAY INDUSTRIES

Inventor： TANAKA KUNIMASA ,  TAKAHASHI KOZO ,  MATSUI RYOSUKE

IPC: B29C55/12 ,  B29K67/00 ,  B29L7/00 ,  C08J5/18

Abstract: PROBLEM TO BE SOLVED: To provide a biaxially stretched polyester film for a molding process which has stretching properties as well as being excellent in processing properties such as heat resistance, dimensional stability, and molding property. SOLUTION: The biaxially stretched polyester film for molding process and its manufacturing method is characterized in that the melting point is 240-265 deg.C, crystalization degree is 49-58, and the total (FMD+FTD) of the stretching at break in the longitudinal direction (FMD) and the stretching at break in the width direction (FTD) at 80 deg.C is not less than 430%.

公开(公告)号：JP2003113258A

公开(公告)日：2003-04-18

申请号：JP2002207266

申请日：2002-07-16

Applicant: TORAY INDUSTRIES

Inventor： TANAKA HIROYUKI ,  TANAKA KUNIMASA ,  YOSHIDA MINORU

IPC: C08J5/18 ,  B29C55/12 ,  B29K67/00 ,  B29L7/00 ,  B32B27/36

Abstract: PROBLEM TO BE SOLVED: To provide a polyester film excellent in toughness and impact resistance. SOLUTION: In this biaxially oriented polyester film, the density is 1.37-1.4 g/cm and the relaxation time T1ρ of diol carbon in a structural analysis by solid high-resolution NMR is >=50 mm sec and