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21. 发明专利

JPH03113013A PRODUCTION OF POLYIMIDE YARN 失效
公开(公告)号：JPH03113013A
公开(公告)日：1991-05-14
申请号：JP25389289
申请日：1989-09-28
申请人： UNITIKA LTD
发明人： MOCHIZUKI MASATSUGU , MURASE SHIGEMITSU , MATSUDA TSUNETOSHI , YAMAGUCHI MASAAKI
IPC分类号： D01F6/74
摘要： PURPOSE:To obtain the title yarn having excellent heat resistance and mechanical characteristics industrially and advantageously by extruding spinning dope of polyimide using a mixed solvent of three components of a non-solvent to polymer, amide-based polar solvent and calcium chloride, etc., as a coagulating solution. CONSTITUTION:A polymer composed of polyimide is dissolved in a polar solvent to give spinning dope, which is extruded through a spinneret into a coagulating solution using a mixed solvent of three components of (A) a non-solvent (preferably water or glycerin) to polymer, (B) an amide-based polar solvent (e.g. N- methyl-2-pyrrolidone or DMF) and (C) calcium chloride and/or lithium chloride to give the objective yarn.

22. 发明专利

JPH0319913A PRODUCTION OF POLYETHER KETONE FIBER 失效
公开(公告)号：JPH0319913A
公开(公告)日：1991-01-29
申请号：JP15272089
申请日：1989-06-15
申请人： UNITIKA LTD
发明人： YAMAGUCHI MASAAKI , MURASE SHIGEMITSU , MATSUDA TSUNETOSHI , MOCHIZUKI MASATSUGU
IPC分类号： D01F6/76 , D01D5/084 , D01F6/78 , D02J1/22
摘要： PURPOSE:To obtain the subject fiber having high strength and useful as an industrial material in high operability by melt-spinning an aromatic polyether ketone polymer, adjusting the birefringence of undrawn fiber to be smaller than a specific level and subjecting the fiber to multiple stage drawing under a condition satisfyink specific condition. CONSTITUTION:A polymer composed essentially of an aromatic polyether ketone (e.g. a polymer composed of the recurring units of formula I-III) is melt-spun to obtain an undrawn fiber having a birefringence n of and subjected to multiple stage drawing under the condition satisfying the formulas IV and V (1DR is 1st-stage draw ratio; TDR is total draw ratio).

23. 发明专利

JPH02120091A PRINTING SCREEN 失效
公开(公告)号：JPH02120091A
公开(公告)日：1990-05-08
申请号：JP27382588
申请日：1988-10-28
申请人： UNITIKA LTD
发明人： MOCHIZUKI MASATSUGU , MURASE SHIGEMITSU , MATSUDA TSUNETOSHI , YAMAGUCHI MASAAKI
IPC分类号： B41N1/24
摘要： PURPOSE:To obtain a printing screen which is superior in strength and other mechanical characteristics, dimensional stability without a change in dimension caused by a moisture absorption or temperature change, and durability without the occurrence of a permanent deformation even under a repeated use by a method wherein the title printing screen is made of a mesh structure woven from an aromatic polyether ketone monofilament. CONSTITUTION:The title printing screen is made of a mesh structure woven from an aromatic polyether ketone monofilament. A polyether ketone polymer is melted and spun to obtain an unoriented monofilament. The polymer to be spun preferably has an intrinsic viscosity of 0.9 or more in the measurement at 25 deg.C using a 96% sulfuric acid as a solvent. If the viscosity is lower than the aforesaid, a monofilament having sufficient mechanical characteristics is difficult to obtain. It is preferable that the monofilament has a diameter of 70mum or less, a strength of 4g/d or more, and an extensibility of 15-50%. The fabric of the order of 100-400 mesh/2.54cm is used for a printing with normal accuracy, and that of 400 mesh/2.54cm or more is used for a printing with very high accuracy.

24. 发明专利

JPH0233340A SNELL 失效
公开(公告)号：JPH0233340A
公开(公告)日：1990-02-02
申请号：JP17977888
申请日：1988-07-19
申请人： UNITIKA LTD
发明人： MOCHIZUKI MASATSUGU , MURASE SHIGEMITSU , MATSUDA TSUNETOSHI
IPC分类号： A01K91/14 , A01K91/00 , D02G3/44
摘要： PURPOSE:To obtain a snell for fishing, constituted of a monofilament, consisting of an aromatic polyether ketone and having a specific strength, elongation and initial Young's modulus with moderate rigidity without causing deterioration in strength in water. CONSTITUTION:The objective snell consisting of a monofilament prepared by melt spinning an aromatic polyether ketone, such as polyether ketone, and having >=5g/d strength, 10-200% elongation and 80-130g/d initial Young's modulus.

25. 发明专利

JP2004148729A Film laminate 有权
公开(公告)号：JP2004148729A
公开(公告)日：2004-05-27
申请号：JP2002317935
申请日：2002-10-31
申请人： Unitika Ltd , ユニチカ株式会社
发明人： MATSUDA TSUNETOSHI , KISHIDA MINORU , SHIBA YOSHITO
IPC分类号： B32B27/32
摘要： PROBLEM TO BE SOLVED: To achieve good adhesion without an adhesive in forming a heat seal layer made of a polyolefinic resin by extrusion lamination.
SOLUTION: A film laminate for extrusion lamination has a layer made of a mixture consisting of 20-80 wt.% an aqueous polyolefin resin (A), 10-80 wt.% an aqueous polyurethane resin (B) and 1-15 wt.% a melamine type cross-linking agent, on at least one side of a biaxially oriented film.
COPYRIGHT: (C)2004,JPO

26. 发明专利

JP2002347195A MULTILAYER STRETCHED POLYAMIDE FILM 失效
公开(公告)号：JP2002347195A
公开(公告)日：2002-12-04
申请号：JP2001158862
申请日：2001-05-28
申请人： UNITIKA LTD
发明人： MATSUDA TSUNETOSHI , KAWAKITA SHUNICHI , KIMURA KIYOHIDE , TANAKA JUNICHI
IPC分类号： B32B27/34
摘要： PROBLEM TO BE SOLVED: To provide a biaxially-oriented multilayer stretched film for packaging having excellent impact resistance, pinhole resistance, tensile strength, interlayer peel-strength and gas-barrier properties. SOLUTION: The multilayer stretched polyamide film comprises at least three layers comprising a resin layer (X) mainly comprising a polyamide (A), a resin layer (Y) comprising a polyamide (B) containing 0.5-3 mass% of a polymeric compound P and a polyamide resin layer (Z), interposed between the resin layers (X) and (Y), comprising a mixture of an aliphatic polyamide (C) with a polyamide (A) and/or an amorphous polyamide (D).

27. 发明专利

JP2002307595A GAS BARRIER LAMINATED FILM 失效
公开(公告)号：JP2002307595A
公开(公告)日：2002-10-23
申请号：JP2001108541
申请日：2001-04-06
申请人： UNITIKA LTD
发明人： ISHIKAWA ATSUHIRO , NANJO KAZUNARI , MATSUDA TSUNETOSHI , NAKANISHI KIYOTAKA
IPC分类号： C08J7/04 , B32B9/00 , B32B27/32
摘要： PROBLEM TO BE SOLVED: To provide a gas barrier laminated film without losing gas barrier properties and excellent in peel strength in a printing or lamination process even if the laminated film having a composite film having a thin film layer comprising an inorganic oxide formed thereto as a barrier layer is used in a soft package. SOLUTION: A layer comprising a polyvinyl alcohol/olefin-maleic anhydride copolymer = 10/90-9/10 (mass ratio) is provided on at least the single surface of a thermoplastic resin film, and the inorganic oxide thin film layer is further formed on this layer.

28. 发明专利

JP2000336195A GAS BARRIER FILM AND ITS PRODUCTION 失效
公开(公告)号：JP2000336195A
公开(公告)日：2000-12-05
申请号：JP14955099
申请日：1999-05-28
申请人： UNITIKA LTD
发明人： MIYAGAWA TETSUYA , MATSUDA TSUNETOSHI , NANJO SADAMI , NAKANISHI KIYOTAKA , SHIBA YOSHITO
IPC分类号： C08J7/04 , C08J5/18 , C08L29/04 , C08L31/02 , C08L67/02 , C08L77/02
摘要： PROBLEM TO BE SOLVED: To obtain a thermoplastic resin film having a high gas barrier property even in high humidity, and capable of being industrially inexpensively produced. SOLUTION: This gas barrier film is the film having a gas barrier layer comprising (A) a polyvinyl alcohol and (B) an alkyl vinyl ether-maleic acid copolymer at a weight ratio of (97/3)-(20/80), formed at least on one surface of a thermoplastic resin film. The oxygen permeability coefficient of the gas barrier layer at 20 deg.C in 85%RH is

29. 发明专利

JP2000177066A LAMINATED FILM 失效
公开(公告)号：JP2000177066A
公开(公告)日：2000-06-27
申请号：JP36057098
申请日：1998-12-18
申请人： UNITIKA LTD , UNITIKA CHEM CO LTD
发明人： UYAMA TOYOKI , KUBO KOJI , MATSUDA TSUNETOSHI , KASAI MASATOSHI
IPC分类号： C08J3/24 , B32B27/28 , C08K5/24 , C08L29/04
摘要： PROBLEM TO BE SOLVED: To obtain excellent gas barrier properties by providing a crosslinking film obtained by reacting a specific amount of a crosslinker with a saponified material of a diacetone acrylamide-aliphatic vinyl ester copolymer containing a specific amount of a diacetone acrylamide unit on one surface of a thermoplastic resin film. SOLUTION: In a laminated film used for a food packaging material or the like having an excellent water resistance and gas barrier properties, at least one surface of a thermoplastic resin film is provided with a crosslinking film obtained by reacting 0,1 to 20 pts.wt. of a crosslinker with 100 pts.wt. of a saponified material of an aliphatic vinyl ester copolymer containing 0.05 to 15 mol% of a diacetone acrylamide unit. As the vinyl ester, a vinyl acetate is particularly preferable. The saponified material of the aliphatic vinyl ester copolymer is copolymerized with 0.05 to 10 mol% of an α-olefin polymer unit. As the crosslinker, one or more type of a compound selected from a hydrazine compound is preferable.

30. 发明专利

JPH10298162A RECOVERED EPSILON-CAPROLACTAM AND ITS PURIFICATION 失效
公开(公告)号：JPH10298162A
公开(公告)日：1998-11-10
申请号：JP10865597
申请日：1997-04-25
申请人： UNITIKA LTD
发明人： UEDA KAZUE , MATSUDA TSUNETOSHI
IPC分类号： C07D201/12 , C07D201/16
摘要： PROBLEM TO BE SOLVED: To obtain a high-purity recovered ε-caprolactam capable of using in a level equivalent to virgin ε-caprolactam and provide a method for purifying the recovered ε-caprolactam. SOLUTION: A depolymerized or hot water-extraction-treated ε-caprolactam aqueous solution is concentrated to >=90 wt.% and recrystallized or subjected to vacuum distillation under

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