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1. 发明专利

DE60114729T2 未知
公开(公告)号：DE60114729T2
公开(公告)日：2006-07-06
申请号：DE60114729
申请日：2001-03-15
申请人： TOYO BOSEKI
发明人： YAMAMOTO YOSHIFUMI , KITAURA ICHIRO , MATSUMURA YUTAKA , TAKAHASHI NORIKO , OHAZAMA TAKESHI , MORISHIGE CHIKAO
IPC分类号： B32B27/30 , C08J7/04 , B29C55/14 , B32B27/32 , B32B37/00 , C09D129/04
摘要： The present invention provides a multi-layer resin film having excellent oxygen gas barrier properties, particularly even at high humidity, and further having no chlorine content. The multi-layer resin film of the present invention has a biaxially-stretched polypropylene resin film, an adhesive layer formed on at least one surface of the polypropylene resin film, and a polyvinyl alcohol resin layer formed on the adhesive layer, wherein the polyvinyl alcohol resin layer has a value of crystallinity parameter (CP (M//) ORTHOGONAL ) not less than 0.8. The multi-layer resin film of the present invention can be prepared by forming an adhesive layer on at least one surface of an unstretched polypropylene resin film; stretching the film in one direction; forming a polyvinyl alcohol resin layer on the adhesive layer; and stretching the film in another direction perpendicular to the direction of previous stretching.

2. 发明专利

DE60114729D1 未知
公开(公告)号：DE60114729D1
公开(公告)日：2005-12-15
申请号：DE60114729
申请日：2001-03-15
申请人： TOYO BOSEKI
发明人： YAMAMOTO YOSHIFUMI , KITAURA ICHIRO , MATSUMURA YUTAKA , TAKAHASHI NORIKO , OHAZAMA TAKESHI , MORISHIGE CHIKAO
IPC分类号： B32B27/30 , B29C55/14 , B32B27/32 , B32B37/00 , C08J7/04 , C09D129/04
摘要： The present invention provides a multi-layer resin film having excellent oxygen gas barrier properties, particularly even at high humidity, and further having no chlorine content. The multi-layer resin film of the present invention has a biaxially-stretched polypropylene resin film, an adhesive layer formed on at least one surface of the polypropylene resin film, and a polyvinyl alcohol resin layer formed on the adhesive layer, wherein the polyvinyl alcohol resin layer has a value of crystallinity parameter (CP (M//) ORTHOGONAL ) not less than 0.8. The multi-layer resin film of the present invention can be prepared by forming an adhesive layer on at least one surface of an unstretched polypropylene resin film; stretching the film in one direction; forming a polyvinyl alcohol resin layer on the adhesive layer; and stretching the film in another direction perpendicular to the direction of previous stretching.

3. 发明专利

JP2003225976A OXYGEN GAS BARRIER MULTILAYER RESIN FILM AND ITS MANUFACTURING METHOD 审中-公开
公开(公告)号：JP2003225976A
公开(公告)日：2003-08-12
申请号：JP2002027017
申请日：2002-02-04
申请人： TOYO BOSEKI
发明人： YAMAMOTO KATSUSHI , YOSHIMOTO MISAO , NAKATANI TADASHI , MATSUMURA YUTAKA , TAGA ATSUSHI
IPC分类号： B32B27/30 , B29C55/14 , B29K23/00 , B29K29/00 , B29L7/00 , B29L9/00 , B32B27/32
摘要： PROBLEM TO BE SOLVED: To provide a multilayer resin film having excellent oxygen gas barrier properties, and having sufficient slipperiness and scratch resistance without containing a chlorine or particularly an oxygen gas barrier multilayer resin film having excellent oxygen gas barrier properties even at a high humidity and excellent slipperiness at printing, laminating or bag making time and good workability. SOLUTION: The multilayer resin film comprises a polyvinyl alcohol resin layer formed on at least one surface of a biaxially stretched polypropylene resin film via an adhesive layer so that the adhesive layer contains fine particles, a number-average particle size (A) of the fine particle is 2.0 to 4.0 μm, a particle size distribution range (B) is 90% or more of the fine particles having a particle size of a (number-average particle size (A) + 1.0 μm) or less, and a content (C) is 0.05 to 2.00 wt.%. COPYRIGHT: (C)2003,JPO

4. 发明专利

JP2003145692A OXYGEN GAS BARRIER FILM AND METHOD FOR MANUFACTURING THE SAME 审中-公开
公开(公告)号：JP2003145692A
公开(公告)日：2003-05-20
申请号：JP2001348160
申请日：2001-11-14
申请人： TOYO BOSEKI
发明人： KUWABARA MITSURU , ITO KATSUYA , MATSUMURA YUTAKA , SATO YOSHINORI , SATO SHUNSUKE , TOMINAGA TAKASHI
IPC分类号： B32B27/30 , B29C55/12 , B29K23/00 , B29K29/00 , B29L7/00 , B29L9/00 , C08K5/00 , C08L29/04
摘要： PROBLEM TO BE SOLVED: To provide an oxygen gas barrier film having high oxygen gas barrier properties, capable of developing excellent oxygen gas barrier properties especially even under a high humidity condition and having good sealant adhesiveness, and a method for manufacturing the film having excellent oxygen gas barrier properties from an easily obtainable material at a low cost. SOLUTION: In the oxygen gas barrier film wherein a polyvinyl alcohol resin layer is laminated on at least one surface of a thermoplastic resin film, the polyvinyl alcohol resin layer comprises a composition prepared by mixing 0.01-5 pts.wt. of a wetting improving agent with 100 pts.wt. of a polyvinyl alcohol resin and the oxygen permeability of this film under an atmosphere with a temperature of 23 deg.C and a relative humidity of 85% is not more than 1,000 ml/m .day.MPa.

5. 发明专利

JPH10100226A MANUFACTURE OF THERMOPLASTIC RESIN FILM 失效
公开(公告)号：JPH10100226A
公开(公告)日：1998-04-21
申请号：JP26104996
申请日：1996-10-01
申请人： TOYO BOSEKI
发明人： OSHIMA TSUKASA , MATSUMURA YUTAKA
IPC分类号： B29C47/88 , B29C47/08 , B29L7/00
摘要： PROBLEM TO BE SOLVED: To obtain a film which is uniform in thickness and properties by controlling vibration at both side edge parts of the film by a method wherein air is drawn by a main suction means from between a thermoplastic resin film and a cooling roll removing by suction, and an auxiliary suction means is provided on both end sides of a contact line wherein the film starts coming in contact with the cooling roll. SOLUTION: Thermoplastic resin is extruded in a film shape, and solidified by cooling by being brought in contact with a rotating cooling roll 1. In this case a contact line wherein thermoplastic resin extruded by melting starts to come in contact with the cooling roll 1 is made an adhesion point M, and air which has intruded between the thermoplastic resin and the cooling roll 1 at the adhesion point M is discharged by being sucked by a suction means 3 provided on a rear part side in a rotary direction of the cooling roll 1 to stick the thermoplastic resin close onto a surface of the cooling roll 1. Further, separately from the main suction means 3, an auxialiary suction means 4 is provided onto both end sides of the adhesion point M, and vibration of both end parts of a neckin part is controlled by execution of sucking with suction force preferably not exceeding suction force of the main suction means 3 in a direction almost parallel to the contact line.

6. 发明专利

JPS63259822A MAGNETIC RECORDING MEDIUM AND ITS PRODUCTION 失效
公开(公告)号：JPS63259822A
公开(公告)日：1988-10-26
申请号：JP9400187
申请日：1987-04-16
申请人： TOYO BOSEKI
发明人： KATO YOSHIO , NAKAMURA MASANORI , MATSUMURA YUTAKA
IPC分类号： G11B5/70 , C09D5/23 , C09D101/18 , C09D175/00 , C09D175/04 , G11B5/73 , G11B5/82
摘要： PURPOSE:To prevent a degradation in output by use or preservation at a high temp. and an increase in off-track quantity by forming a magnetic layer on a flexible base, then subjecting the base molded to a use shape to a heat treatment while the base is fixed, thereby enhancing the thermal stability thereof and uniformizing the same in all bearings. CONSTITUTION:After the magnetic layer is formed on the flexible base, the base is molded to the use shape as a magnetic recording medium such as a circular cookie like, for example, floppy disk and this molding is fixed partially or over the entire part and is subjected to the heat treatment at 55-96 deg.C. Burst signals for alignment are written in all the tracks of such magnetic recording medium. The off-track quantity of the burst signals for alignment of this magnetic recording medium with respect to the track width is specified to

7. 发明专利

JP2003251772A POLYAMIDE LAMINATED FILM 审中-公开
公开(公告)号：JP2003251772A
公开(公告)日：2003-09-09
申请号：JP2002053379
申请日：2002-02-28
申请人： TOYO BOSEKI
发明人： OKUDAIRA HARUO , YOSHITANI YUJI , MATSUMURA YUTAKA
IPC分类号： B32B27/34
摘要： PROBLEM TO BE SOLVED: To provide a polyamide laminated film excellent in adhesiveness, especially water-resistant adhesiveness, good in bending fatigue resistance and transparency, having effect for preventing bag bursting at the time of boiling treatment, retorting treatment or processing or transport of a commodity when used as various packing materials, having good processability in a process of printing, lamination or the like and suitable for use in packaging. SOLUTION: A thin film layer, which comprises a polyamide copolymer or a mixed polymer of 6 wt.% or more of the polyamide copolymer and 94 wt.% or less of an aliphatic polyamide, is stacked on at least one surface of a substrate layer comprising a polyamide polymer containing an aliphatic polyamide as a main constituent. COPYRIGHT: (C)2003,JPO

8. 发明专利

JP2003200536A OXYGEN GAS BARRIER MULTILAYER RESIN FILM AND METHOD OF MANUFACTURE THEREOF 审中-公开
公开(公告)号：JP2003200536A
公开(公告)日：2003-07-15
申请号：JP2002003026
申请日：2002-01-10
申请人： TOYO BOSEKI
发明人： YOSHIMOTO MISAO , YAMAMOTO KATSUSHI , NAKATANI TADASHI , MATSUMURA YUTAKA , TAGA ATSUSHI
IPC分类号： B32B27/30 , C09D129/04 , C09J201/00
摘要： PROBLEM TO BE SOLVED: To provide a multilayer resin film which has high oxygen gas barrier properties without a chlorine content, and also a presentable appearance and excellent sliding properties, especially, an oxygen gas barrier multilayer resin film which displays high oxygen barrier properties under a highly humid condition and excellent sliding properties and dependable workability during printing, laminating and bag making, and to provide a method for manufacturing the oxygen gas barrier film at a low cost. SOLUTION: In the multilayer resin film with a polyvinyl alcohol resin layer formed on at least one of the sides of a biaxially orientated polypropylene resin film through an adhesive layer, the adhesive layer contains a lubricant particle, and the difference between the average particle diameter (D) of the lubricant particle and the thickness (T) of the adhesive layer falls within the range: 0.5 (μm)≤(D-T)≤2.0 (μm). COPYRIGHT: (C)2003,JPO

9. 发明专利

JP2003145691A OXYGEN GAS BARRIER FILM AND METHOD FOR MANUFACTURING THE SAME 审中-公开
公开(公告)号：JP2003145691A
公开(公告)日：2003-05-20
申请号：JP2001347903
申请日：2001-11-13
申请人： TOYO BOSEKI
发明人： KUWABARA MITSURU , ITO KATSUYA , MATSUMURA YUTAKA , SATO YOSHINORI , SATO SHUNSUKE , TOMINAGA TAKASHI
IPC分类号： B32B27/30 , B32B27/32
摘要： PROBLEM TO BE SOLVED: To provide an oxygen gas barrier film having high oxygen gas barrier properties, capable of developing excellent oxygen gas barrier properties especially even under a high humidity condition and having good sealant adhesiveness, and a method for manufacturing the film having excellent oxygen gas barrier properties from an easily obtainable material at a low cost. SOLUTION: The oxygen gas barrier film is manufactured by laminating a layer based on a polyvinyl alcohol resin on at least one surface of a biaxially stretched polypropylene resin film through an adhesive layer. The oxygen permeability of this film under an atmosphere with a temperature of 23 deg.C and a relative humidity of 85% is not more than 1,000 ml/m .day.MPa and the laminate strength thereof is not less than 750 mN.

10. 发明专利

JP2003145690A OXYGEN GAS BARRIER FILM AND METHOD FOR MANUFACTURING THE SAME 审中-公开
公开(公告)号：JP2003145690A
公开(公告)日：2003-05-20
申请号：JP2001347902
申请日：2001-11-13
申请人： TOYO BOSEKI
发明人： KUWABARA MITSURU , HIGASHIURA MASAYA , ITO KATSUYA , NAKATANI TADASHI , KITAURA ICHIRO , MATSUMURA YUTAKA
IPC分类号： B32B27/30 , B32B27/32 , C08L29/04 , C08L75/04
摘要： PROBLEM TO BE SOLVED: To provide an oxygen gas barrier film having high oxygen gas barrier properties, capable of developing excellent oxygen gas barrier properties especially even under a high humidity condition and having good sealant adhesiveness, and a method for manufacturing the film having excellent oxygen gas barrier properties from an easily obtainable material at a low cost. SOLUTION: An oxygen gas barrier layer, which comprises a mixture of a polyvinyl alcohol resin (A) with a polymerization degree of 200-2,600 and a saponification value of 90-99.7 mol% and a urethane resin (B), is laminated on at least one surface of a biaxially stretched polypropylene resin film through an adhesive layer to obtain the oxygen gas barrier film. The oxygen permeability of this film under an atmosphere with a temperature of 23 deg.C and a relative humidity of 85% is not more than 1,000 ml/m .day.MPa.

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