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公开(公告)号：JP2000025173A
公开(公告)日：2000-01-25
申请号：JP19343998
申请日：1998-07-08
Applicant: TORAY INDUSTRIES
Inventor： ENAMI YOSHIAKI , SATO JUNYA , KUROKAWA TAKESHI
Abstract: PROBLEM TO BE SOLVED: To enhance the smooth touch and the mechanical characteristics and upgrade the interlayer adhesive force with the elimination of glittering by specifying the interlayer adhesive strength of a biaxially oriented layer and a uniaxially oriented layer. SOLUTION: A resin for forming a basic layer is a biaxially oriented polypropylene resin and the degree of isotacticity of an isotactic polypropylene resin is 85% or higher. The polypropylene resin of an intermediate layer laminated on one of the faces of the basic layer is preferably to have 20-90 J/g amount of crystalline fusion heat in order to achieve 120 g/cm or more interlayer adhesive strength. Further the polypropylene resin of the intermediate layer is preferably to have a main endothermic peak following the crystalline fusion at 155-163 deg.C. The intermediate resin layer is preferably of such a type that the isotactic polypropylene resin with 60-80% mesopentad molar fraction is a main component. A uniaxially oriented polypropylene resin is laminated as a surface layer on the intermediate layer.
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公开(公告)号：JPH02293135A
公开(公告)日：1990-12-04
申请号：JP11558889
申请日：1989-05-09
Applicant: TORAY INDUSTRIES
Inventor： KUROKAWA TAKESHI , TANAKA MEGUMI , TSUCHIYA KATSUHIRO
Abstract: PURPOSE:To enhance the adhesiveness of a base film and a metal film layer by applying corona discharge treatment to the base film immediately before laminating the metal film layer to said film. CONSTITUTION:The rear of the base film 6 sent out of an unwinder 1 is subjected to corona discharge treatment by a corona discharge treatment apparatus 2. Immediately thereafter, the film 6 is fed to a metal film forming apparatus 3 to form a metal film layer to the rear of the film 6 under a vacuum atmosphere. This metal film laminated film 6A is reversed to be fed to a laminator 4 to coat the metal film layer with the laminating resin from a die 53 and taken up as a desired multilayer film 6B by a winder 5.
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公开(公告)号：JPS63310954A
公开(公告)日：1988-12-19
申请号：JP14773287
申请日：1987-06-12
Applicant: TORAY INDUSTRIES
Inventor： NIIZAWA MASAYUKI , KOTANI YOSHINORI , KUROKAWA TAKESHI
Abstract: PURPOSE:To provide superior suitability to vapor deposition to a PP film by specifying the thermal shrinkage start temp. of the film in the longitudinal direction, the slip factor and the F100 value. CONSTITUTION:When a PP film for vapor deposition is formed, the thermal shrinkage start temp. of the film in the longitudinal direction is regulated to =10.5kg/mm . The film is desirably a biaxially drawn film and the pref. thickness is
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公开(公告)号：JPH08267680A
公开(公告)日：1996-10-15
申请号：JP9791995
申请日：1995-03-29
Applicant: TORAY INDUSTRIES
Inventor： KUROKAWA TAKESHI , SUZUI NOBUO
IPC: C08J7/00 , B29C55/02 , B29K23/00 , B29K55/00 , B29L7/00 , B29L9/00 , B32B15/08 , B32B15/085 , B32B27/32 , C08L23/12 , C08L57/02 , C23C14/20
Abstract: PURPOSE: To provide an olefinic laminate film with a good moisture resistance and gas barrier property, and having a small rate of the occurrence of disqualified articles due to blocking. CONSTITUTION: The polyolefinic laminate film is at least a two-layer laminate film, and one layer is the layer with one or more kinds of petroleum resin substantially not containing a polar group and terpene resin substantially not containing a polar group blended by 5-30wt.%. and the surface of the layer is given an electric discharge treatment.
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公开(公告)号：JP2000238210A
公开(公告)日：2000-09-05
申请号：JP4154099
申请日：1999-02-19
Applicant: TORAY INDUSTRIES
Inventor： SATO JUNYA , ENAMI YOSHIAKI , KUROKAWA TAKESHI
Abstract: PROBLEM TO BE SOLVED: To prevent the separation of a laminated resin layer by laminating a polypropylene resin layer, a resin layer composed of a mixture containing an ethylene.propylene.butene tertiary copolymer and a bonding resin layer of an ethylene-vinyl acetate copolymer resin layer laminated all together. SOLUTION: A polypropylene resin and a low melting point polypropylene resin are fed into an extruder to manufacture a non-drawn sheet. A resin layer composed of an ethylene.propylene copolymer containing 50-95 wt.% propylene component, a propylene.butene copolymer and an ethylene.propylene.butene tertiary copolymer and also an ethylene-vinyl acetate copolymer resin are fed into an extruder, extruded onto a low melting point propylene resin layer of a film and laminated thereon. The ethylene-vinyl acetate copolymer resin used for the bonding resin layer contains a 10-30 wt.% vinyl acetate content. The laminate bonding force is strengthened by the arrangement and the superior gloss and clear feeling can be provided by the arrangement.
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Patent Agency Ranking
公开(公告)号：JPH08267681A
公开(公告)日：1996-10-15
申请号：JP9976095
申请日：1995-03-30
Applicant: TORAY INDUSTRIES
Inventor： KUROKAWA TAKESHI , SUZUI NOBUO
Abstract: PURPOSE: To provide a laminate film having a mat layer with a good moisture resistance and gas barrier property, and having a small occurrence of disqualified articles due to blocking. CONSTITUTION: The polyolefinlc laminate film is at least a three-layer laminate film, and one layer is the layer with one or more kinds of petroleum resin substantially not containing a polar group and terpene resin substantially not containing a polar group blended by 5-30wt.% and the surface of the layer is given an electric discharge treatment, and the other surface layer Is made into a delustered mat layer.
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公开(公告)号：JPH02293134A
公开(公告)日：1990-12-04
申请号：JP11558789
申请日：1989-05-09
Applicant: TORAY INDUSTRIES
Inventor： KUROKAWA TAKESHI , TANAKA MEGUMI , TSUCHIYA KATSUHIRO
Abstract: PURPOSE:To enhance the adhesiveness of two layers by forming a metal film layer to a base film and continuously forming a coating layer to said metal film layer. CONSTITUTION:A base film 6 is fed out of an unwinder 1 and fed to a metal film forming apparatus 3 while the rear of said film 6 is subjected to corona discharge treatment by a corona discharge treatment apparatus 2. A metal film layer is formed to the rear of the film 6 under a vacuum atmosphere by the metal film forming apparatus 3 and this metal film laminated film 6A is subsequently reversed to be fed to a laminator 4 and the metal film is coated with the laminating resin flowing down from a die 53 to take up a desired multilayer film 6B by a winder 5.
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公开(公告)号：JPH02270526A
公开(公告)日：1990-11-05
申请号：JP9390489
申请日：1989-04-13
Applicant: TORAY INDUSTRIES
Inventor： KUROKAWA TAKESHI , TANAKA MEGUMI , KIMOTO ATSUSHI
Abstract: PURPOSE:To obtain resin film, in which the generation of scraped-off particle and the thickness unevenness are few, by a method wherein resin film is obtained by cooling molten resin arranged on a casting drum and both the edges of the film are shaped flat. CONSTITUTION:Molten resin 15 in a nozzle 11 flows down continuously from a nozzle lip 11A onto the top face of a casting drum 12 and is moved below spot coolers 13 and 13 through the rotation of the casting drum 12. Both the edges of the molten resin 15 are fixed with the spot coolers 13 and 13 so as to make the width of the resin nearly constant through the fixation of the positions of both end parts of the resin. The molten resin 15 is brought into close contact with the casting drum 12 by means of air jetted from an air knife 14 and cooled in order to obtain resin film 15A. Both the edges of the resin film 15A are pressed and shaped flat with nip rolls 16. Further, the scanning of both its edges is improved, resulting in decreasing the generation of scraping-off particle and the staining and thickness ununiformity of the resin film 15A are improved.
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公开(公告)号：JPH11262982A
公开(公告)日：1999-09-28
申请号：JP6898098
申请日：1998-03-18
Applicant: TORAY INDUSTRIES
Inventor： ENAMI YOSHIAKI , KUROKAWA TAKESHI , SUZUI NOBUO
Abstract: PROBLEM TO BE SOLVED: To provide a film for print laminating and a print laminate body maintaining glossiness without using an anchor coat agent, wherein laminated polypropylene resin layer and adhering resin layer do not peel after print laminating regardless of types of printing paper. SOLUTION: A film for print laminating is composed of at least four layers including two or more polypropylene layers 2 wherein at least one layer is composed of a polypropylene resin 3 having a low melting point, and two adhering resin layers comprising a resin layer 4 wherein a specified ethylene- methacrylate ester copolymer and an ethylene/acrylic ester/maleic anhydride terpolymer are mixed at a specified mixing ratio, and a specified ethylene-vinyl acetate copolymer resin layer 5.
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公开(公告)号：JPH10330706A
公开(公告)日：1998-12-15
申请号：JP7452298
申请日：1998-03-23
Applicant: TORAY INDUSTRIES
Inventor： ENAMI YOSHIAKI , KUROKAWA TAKESHI , SUZUI NOBUO
IPC: B32B27/28 , B32B27/32 , C09J5/06 , C09J7/02 , C09J131/04 , C09J133/10
Abstract: PROBLEM TO BE SOLVED: To obtain a film improved in peeling resistance after print lamination and gloss by laminating a polypropylene resin layer made from a low-melting polypropylene resin with a specified ethylene/methacrylate copolymer resin layer and an ethylene/vinyl acetate resin layer. SOLUTION: A layer 3 made of a low-melting polypropylene having a melting point of 105-155 deg.C and having a thickness of 0.5-10 ×m, desirably 1-5 μm is laminated on one surface of a layer 2 made of a polypropylene resin having an isotacticity index of 90-99% and an intrinsic viscosity of 1.0-4.0 dl/g and having a thickness of 10-30 μm. Next, a layer 4 made of an ethylene/ methyacrylate copolymer having a methacrylate content of 5-35 wt.% and having a thickness of 1-10 μm and a layer 5 made of an ethylene/vinyl acetate copolymer resin having a vinyl acetate content of 10-30 wt.% and having a thickness of 4-24 μm are laminated with each other to obtain an adhesive resin layer having a thickness of 5-25 μm. The adhesive resin layer is laminated with the above low-melting polypropylene resin layer 2.
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