-
公开(公告)号：JP2550746B2
公开(公告)日：1996-11-06
申请号：JP9612890
申请日：1990-04-10
Applicant: TORAY INDUSTRIES
Inventor： SUMYA TAKASHI , YAMAGISHI HIDEKI , FUNAYAMA NOBUTAKA
IPC: B32B27/36
-
公开(公告)号：JPH04316830A
公开(公告)日：1992-11-09
申请号：JP8404291
申请日：1991-04-16
Applicant: TORAY INDUSTRIES
Inventor： SUMIYA TAKASHI , FUNAYAMA NOBUTAKA , YAMAGISHI HIDEKI
Abstract: PURPOSE:To provide the title film excellent in transparency and processability, stabilized in heat behavior after processing and suppressed in the lowering of the flatness of the film due to heat shrinkage such as unevenness or a curl. CONSTITUTION:A polyester biaxially stretched film is characterized by that at least two heat absorption peaks are observed other than a melting peak at the time of thermal analysis and the difference between the heat absorption peak of the highest temp. and that of the lowest temp. excepting the melting peak is within the range of 20-130 deg.C and the heat shrinkage factors in longitudinal and lateral directions at 150 deg.C are 0.8 to -0.5% and the presence probability (Ps) of org. particles in the surface layer of at least a single surface and the presence probability (Pc) of org. particles in the center part of the film become Ps>2Pc.
-
公开(公告)号：JPH03292141A
公开(公告)日：1991-12-24
申请号：JP9612890
申请日：1990-04-10
Applicant: TORAY INDUSTRIES
Inventor： SUMIYA TAKASHI , YAMAGISHI HIDEKI , FUNAYAMA NOBUTAKA
IPC: B32B27/36
Abstract: PURPOSE:To obtain good transparency and easy slip properties and to prevent the generation of rupture and scratch at the time of film formation by providing a base material layer having a surface orientation coefficient (a) composed of a polyester resin film having intrinsic viscosity A and the film layer having thickness Tmum and a surface orientation coefficient (b) laminated to the base material layer and composed of a polyester resin film having intrinsic viscosity B containing inorg. particles having an average particle size (d)mum and setting B, A, T, (d), (b), (a) so as to satisfy specific conditions. CONSTITUTION:A base material layer having a surface orientation coefficient (a) composed of a polyester resin having intrinsic viscosity A and the film layer having thickness Tmum and a surface orientation coefficient (b) laminated to the base material layer and composed of a polyester resin having inherent viscosity B containing inorg. particles having an average particle size (d)mum are provided and B, A, T, (d), (b), (a) satisfy conditions of 0.5>=B-A>=0.02, 25>=T/d>=1.5 and b-a>=1X10 . The average particle size (d) of the inorg. particles is 0.2 - 1.0mum and the addition amount of the inorg. particles to the polyester resin having intrinsic viscosity B is 1wt.% or less. When the polyester resin having high intrinsic viscosity higher than that of the base material layer is used on the side of the film layer, the rupture at the time of film formation can be reduced.
-
公开(公告)号：JPH01297287A
公开(公告)日：1989-11-30
申请号：JP12763288
申请日：1988-05-25
Applicant: TORAY INDUSTRIES
Inventor： FUNAYAMA NOBUTAKA , KATAYAMA ICHIRO , NAKAHARA KOJI
IPC: B41J31/00
Abstract: PURPOSE:To reduce the separation of an ink layer, to make a roll dimeter small in continuous form, and to conduct a sharp printing, by providing a transfer layer on a biaxially oriented copolymer polyester film having specific coefficient of surface orientation, difference in refractive index between a longitudinal direction and a direction at right angles thereto, and thickness, and a yield point. CONSTITUTION:A transfer film consists of a polyester film and a transfer layer provided on one surface thereof. The polyester film is an ester-containing condensation polymer obtained by condensing a dicarboxylic acid content and a diol content, and biaxially oriented. This polyester film has a yield point in a stress- strain curve, a coefficient of surface orientation ranging from 0.03 to and including 0.10, an absolute difference in refractive index of 0.015 or less between a longitudinal direction and a direction at right angles thereto, and a thickness from 1.0 to and including 30mum. In this manner, the separation of an ink layer can be reduced, a roll diameter in continuous form can be made small, and a sharp printing can be conducted.
-
公开(公告)号：JPH01208132A
公开(公告)日：1989-08-22
申请号：JP3369688
申请日：1988-02-16
Applicant: TORAY INDUSTRIES
Inventor： MATSUSHIMA KEISUKE , NAKAHARA KOJI , FUNAYAMA NOBUTAKA
Abstract: PURPOSE:To obtain a dustless film for printer, printing and drawing, which is superior in dimensional stability, heat resistance, durability, printability and writing properties, by a method wherein a layer comprised of a water soluble high molecule and inorganic particles having a specific weight ratio is provided on a biaxially oriented polyester film whose thickness, light transmission density and whiteness degree are specified. CONSTITUTION:A layer of 0.3-7.0mum thick, which is comprised of a water-soluble high molecule and inorganic particles is provided on at least one surface of a biaxially oriented polyester film whose thickness is 6-300mum and light transmission density and whiteness degree are at least 0.3 and 60% respectively. A rate of organic particles is 20-40wt.% to the total weight of the water-soluble high molecule and inorganic particles and that of polyvinyl alcohol in the water-soluble high molecule is 15-35wt.%. Mean roughness on the center line of the surface of the layer comprised of the water-soluble high molecule and inorganic particles and the maximum height of the roughness are made respectively 0.1-0.6mum and 1.0-6.0mum. Shading properties of a light, the whiteness degree, printability, writing properties and wear resistance of the film obtained in this manner are extremely favorable.
-
Patent Agency Ranking
公开(公告)号：JPH11138693A
公开(公告)日：1999-05-25
申请号：JP31338397
申请日：1997-11-14
Applicant: TORAY INDUSTRIES
Inventor： OUCHI KUNIHIKO , TSUCHIYA TAKESHI , FUNAYAMA NOBUTAKA
IPC: B65D25/14 , B29C48/305 , B29C55/12 , B29C71/02 , B29D7/01 , B29K67/00 , B29L7/00 , B32B15/08 , B32B15/09 , B65D25/36 , C08J5/18 , C08L67/02 , B29C47/14
Abstract: PROBLEM TO BE SOLVED: To improve adhesion, moldability, and shock resistance by imparting orientation intensity ratios in ranges represented by specified expressions to a side laminated to a metallic sheet and a side not laminated to the metallic sheet. SOLUTION: When lamination is performed such that an orientation strength ratio Ha of a side laminated to a metallic sheet measured through a laser Raman spectroscopy method is made to be 0.8 in deflection vertical to the film thickness direction, and I ZD: Raman band strength measured near 1615 cm in deflection horizontal to the film thickness direction. The orientation strength Xi of the polyester film measured through X-ray diffraction is made to be 20-30 for the adhesion at the time of laminating, moldability at the time of can manufacturing, heat resistance, shock resistance, or the like.
-
公开(公告)号：JPH09239826A
公开(公告)日：1997-09-16
申请号：JP5455596
申请日：1996-03-12
Applicant: TORAY INDUSTRIES
Inventor： TSUCHIYA TAKESHI , FUNAYAMA NOBUTAKA , OUCHI KUNIHIKO
Abstract: PROBLEM TO BE SOLVED: To provide the above polyester film excellent in the bonding strength of metal and a film and the moldability to a metal container, imparting excellent impact resistance and taste characteristics to the metal container after molding processing and hard to exert the effect of fluctuations of a temp. condition at a time of thermal lamination on the bonding strength of metal and the film, the moldability to the metal container and the impact resistance and taste characteristics of the metal container after molding processing. SOLUTION: In a biaxlally stretched single layer polyester resin film of which one surface is used in the lamination to metal, the surface orientation coefficient on the side of the surface laminated to metal of the film and that on the surface not laminated to metal thereof are controlled to spacific ranges and the value obtained by dividing the difference between the surface orientation coefficients of both surfaces of the film by the thickness of the film is set to 0.00015 or more.
-
公开(公告)号：JPH09208720A
公开(公告)日：1997-08-12
申请号：JP2004396
申请日：1996-02-06
Applicant: TORAY INDUSTRIES
Inventor： FUNAYAMA NOBUTAKA , TSUCHIYA TAKESHI , KIDA KATSUMI
Abstract: PROBLEM TO BE SOLVED: To obtain the above film having a specific polyester layer treated with a corona discharge, excellent in adhesive property, forming property, impact resistance, taste characteristic, foaming property and change in a smell, and suitable for a food container. SOLUTION: This laminated polyester film used for laminating the one of surfaces of the film with a metal plate, has >=40 equivalent/ton content of carboxyl terminal groups in the polyester layer (A) laminated with the metal plate, and surface thereof is treated with a corona discharge. Further, it is preferable that an intrinsic viscosity of the polyester layer (B) not laminated with the metal plate is 0.6-0.9, of which difference from the intrinsic viscosity of the layer (A) is
-
公开(公告)号：JP2581132B2
公开(公告)日：1997-02-12
申请号：JP3629988
申请日：1988-02-17
Applicant: TORAY INDUSTRIES
Inventor： YOSHII TOSHA , NAKAHARA KOJI , FUNAYAMA NOBUTAKA
-
公开(公告)号：JPS6411820A
公开(公告)日：1989-01-17
申请号：JP16824587
申请日：1987-07-06
Applicant: TORAY INDUSTRIES
Inventor： NAKAHARA KOJI , NAGATA RYUICHI , FUNAYAMA NOBUTAKA
Abstract: PURPOSE:To obtain excellent easy foldability and dimensional stability by a method wherein film, which is made of polyethylene terephthalate copolymer and has a yield point and the difference between mean refractive indices in unstretched state and in biaxially stretched state of which is set to lie within the specified range. CONSTITUTION:The easily foldable polyester film concerned is a biaxially stretched film, which is made of polyethylene terephthalate (PET) copolymer and has a yield point in a stress-strain curve and satisfies the following relationship: 0.003
-
-
-
-
-
-
-
-
-
Search Results
37
records
(took 0.024 seconds)
