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31. 发明专利

JPH07319221A WET DEVELOPER AND ITS PRODUCTION 失效
公开(公告)号：JPH07319221A
公开(公告)日：1995-12-08
申请号：JP4676095
申请日：1995-03-07
申请人： DAINIPPON PRINTING CO LTD
发明人： NISHIZAWA MASUMI , MIYAMA TAKASHI , IIJIMA MASAYUKI
IPC分类号： G03G9/12 , G03G9/13
摘要： PURPOSE:To obtain a wet developer excellent in dispersibility without causing sedimentation or aggregation even when the amt. of a pigment and the like is increased. CONSTITUTION:This wet developer is produced by dispersing copolymer resin particles comprising at least two monomer components in an electric insulating dispersion medium. The copolymer resin particles and the dispersion medium have such relations that the difference DELTAdelta between the solubility parameter deltap of a homopolymer comprising at least one monomer component in the copolymer resin and the solubility parameter deltas of the dispersion medium is >=1.0, the difference DELTAdelta between the solubility parameter deltap of the other homopolymer and the solubility parameter deltas is -DELTAdelta ) between DELTAdelta and DELTAdelta is >=0.5. This developer is produced by dissolving the copolymer resin in a good solvent and mixing the soln. with the dispersion medium having the relations above described to produce granules of copolymer resin particles.

32. 发明专利

JP2000280412A LAMINATE 失效
公开(公告)号：JP2000280412A
公开(公告)日：2000-10-10
申请号：JP9153899
申请日：1999-03-31
申请人： DAINIPPON PRINTING CO LTD , INCTEC INC
发明人： NISHIZAWA MASUMI , KITAGAWA SHOICHI , MIYATA EIICHI
IPC分类号： B65D65/40 , B32B7/02 , B32B27/18 , G11B5/73 , G11B5/733
摘要： PROBLEM TO BE SOLVED: To provide a laminate having heat fusibility, excellent in antistatic capacity and transparency even under low humidity environment, and a package produced by the thermal fusion processing of the laminate. SOLUTION: A laminate is obtained by laminating a heat seal layer on one surface of a resin film substrate layer and a conductive layer on the other surface thereof and the conductive layer contains an acicular conductive filler. The conductive layer is formed by coating the substrate layer with a binder resin having acicular antimony doped tin oxide, wherein a major axis particle size is 0.2-2.0 μm, a minor axis particle size is 0.01-0.02 μm and a particle size ratio of major axis/minor axis is 20-30, dispersed therein. Since the conductive layer contains fine acicular antimony doped tin oxide, stable and good conductivity not depending on humidity can be developed in the laminate. Since particles of antimony doped tin oxide are easy to contact with each other even in a reduced addition amt. as compared with a case using a conventional spherical conductive filler, this laminate is excellent in transparency.

33. 发明专利

JP2000160143A ORGANIC ELECTROCONDUCTIVE MATERIAL 失效
公开(公告)号：JP2000160143A
公开(公告)日：2000-06-13
申请号：JP9587199
申请日：1999-04-02
申请人： YASUHARA CHEMICAL CO LTD , DAINIPPON PRINTING CO LTD
发明人： MORIKAWA TOSHIYUKI , MINEYAMA SHINOBU , NISHIZAWA MASUMI , ONO NORIKATSU , OGATA NAOYA
IPC分类号： H05F1/00 , C09K3/16 , H01B1/12
摘要： PROBLEM TO BE SOLVED: To produce an organic electroconductive material capable of manifesting heat resistance, adhesion to a base material, transparency and electroconductivity by including a new compound where sulfonic acid groups are introduced into a terpene material. SOLUTION: This organic electroconductive material includes at least one of new compounds of formulas I-VII [wherein, X1-X4 are each H, a 1-5C alkyl or hydroxyl; Ya and Yb are each proton (H+), a positive ion from a basic compound; (n) is 0-15; (r)+(s)=0.1-2; (m) is 0-30; and R1 and R2 are each a alkyl or H]. The compounds of formula I and II are obtained by reacting a monoterpene compound (e.g. α-pinene) with a phenolic compound (e.g. phenol), followed by sulfonation. Their sulfonates are obtained by the acid-base reaction of the sulfonated product with a basic compound. Materials suitable for improving performance such as electroconductivity, heat resistance and waterproof can be provided.

34. 发明专利

JP2000155438A IMAGE RECEIVING SHEET 失效
公开(公告)号：JP2000155438A
公开(公告)日：2000-06-06
申请号：JP32944798
申请日：1998-11-19
申请人： DAINIPPON PRINTING CO LTD
发明人： NISHIZAWA MASUMI , ONO NORIKATSU , HAYASHI MASAFUMI
IPC分类号： C09K3/16 , G03G7/00
摘要： PROBLEM TO BE SOLVED: To obtain an image receiving sheet which ensures good toner fixability, is excellent in image quality and has good suitability to transport in an electrophotographic copying machine and a printer. SOLUTION: The image receiving sheet has a receiving layer 2 on at least one face of the substrate sheet 1 and a layer 3, 3' containing an organic electrically conductive material obtained by introducing a sulfonic acid group and/or a sulfonate group into a compound having a terpene skeleton as an antistatic agent on the top of the image receiving sheet or between the receiving layer 2 and the substrate sheet 1.

35. 发明专利

JP2000103175A THERMAL TRANSFER SHEET 失效
公开(公告)号：JP2000103175A
公开(公告)日：2000-04-11
申请号：JP27350698
申请日：1998-09-28
申请人： DAINIPPON PRINTING CO LTD
发明人： NISHIZAWA MASUMI , ONO NORIKATSU
IPC分类号： B44C1/17 , B41M5/382 , B41M5/40 , B41M5/38
摘要： PROBLEM TO BE SOLVED: To obtain a thermal transfer sheet provided with heat resistance, coating properties, slip properties and the like in addition to antistatic properties and corrosion prevention properties, and also provided with excellent thermal- head-traveling properties and good antistatic properties (and a heat-resistant lubricant layer) without accumulation of refuses in a thermal head and wear of the thermal head. SOLUTION: A thermal transfer coloring matter layer is formed on one face of a base sheet, and a heat-resistant lubricant layer is formed on the other face through a primer layer on a thermal transfer layer, and the primer layer contains an organic conductive material formed of a compound of terpene skeleton into which a sulfonic group and/or a group of its salt is introduced.

36. 发明专利

JP2000033673A LAMINATE 失效
公开(公告)号：JP2000033673A
公开(公告)日：2000-02-02
申请号：JP20134898
申请日：1998-07-16
申请人： DAINIPPON PRINTING CO LTD
发明人： FUJII KAZUHITO , NISHIZAWA MASUMI
IPC分类号： B65D77/20 , B32B27/18 , B32B27/36 , C09K3/10 , C09K3/16
摘要： PROBLEM TO BE SOLVED: To provide a laminate having transparency and excellent antistatic characteristics and made heat-sealable as a lid material to a synthetic resin container. SOLUTION: In a laminate wherein a base material layer 2 comprising a stretched film is provided to one surface of a heat sealant layer 3, the heat sealant layer contains at least one of a polyester resin, a polyurethane resin an acrylic resin, a vinyl chloride/vinyl acetate copolymer resin and an ethylene/ acrylic acid copolymer resin and polythiophene represented by formula being an antistatic agent 7. The base material layer 2 is a biaxially stretched polyester film with a thickness of 5-100 μm and the total light transmissivity of the laminate is 80% or more and the haze value thereof is 25% or less.

37. 发明专利

JPH11278582A Transparent conductive cover tape 失效
标题翻译：透明导电胶带
公开(公告)号：JPH11278582A
公开(公告)日：1999-10-12
申请号：JP10043398
申请日：1998-03-27
申请人： Dainippon Printing Co Ltd , 大日本印刷株式会社
发明人： NISHIZAWA MASUMI , FUJII KAZUHITO
IPC分类号： B65D73/02 , B32B27/30 , B32B27/32 , B65D85/86 , C08K3/22 , C08L23/08 , H05K9/00
摘要： PROBLEM TO BE SOLVED: To manufacture a cover tape of superior bonding properties when a polystyrene carrying tape is heat sealed and also provided with superior antistatic properties and transparency. SOLUTION: A cover tape is formed of at least a biaxially oriented resin film layer 5, a heat sealant layer 4, and an antistatic layer 3 laminated successively, and the heat sealant layer 4 is composed of ethylene copolymerized resin, and the antistatic layer 3 is formed of a layer in which an antimony dope oxide tin having the 0.2-2.0 μm long axial direction particles and the 0.01-0.02 μm axial direction particles and also having the 20-30 particle diameter ratio between the long axis and the short taxis is dispersed in the ethylene copolymerized resin.
摘要翻译：要解决的问题：当聚苯乙烯携带带被热密封并且还具有优异的抗静电性能和透明性时，制造具有优异粘合性能的覆盖带。解决方案：覆盖带由至少双轴取向树脂膜层5，热密封层4和抗静电层3依次层压形成，热密封层4由乙烯共聚树脂构成，抗静电层3 由具有0.2-2.0μm长轴向颗粒和0.01-0.02μm轴向颗粒并且在长轴和短的出租车之间具有20-30个粒径比的锑掺杂氧化锡形成的层是分散在乙烯共聚树脂中。

38. 发明专利

JPH11115088A HEAT SEALANT LAYER AND LAMINATE USING THE SAME 失效
公开(公告)号：JPH11115088A
公开(公告)日：1999-04-27
申请号：JP29964297
申请日：1997-10-17
申请人： DAINIPPON PRINTING CO LTD
发明人： FUJII KAZUHITO , NISHIZAWA MASUMI
IPC分类号： B32B7/02 , B32B7/10 , B32B27/18 , B32B27/32
摘要： PROBLEM TO BE SOLVED: To form a laminate having superior antistatic property and characteristic, and a lid material combining a stable adhesiveness, good peelability and excellent antistatic effect by providing a static despersive layer consisting of conductive minute grains and a binder on one surface of a heat seal resin layer. SOLUTION: A heat seal resin layer 2 forming a heat seal layer 1 is made up of an ethylene vinyl acetate copolymer, a hotmelt adhesive consisting mainly of olefin, elastomer or the like, etc. The static dispersive layer 3 formed on one surface of the heat seal layer 1 is made such that coat liquid with minute grains such as conductive minute grains of tin oxide or the like or minute grains such as an organic silicone compound dispersed in a vehicle is coated by a gravure reverse method. The conductive minute grain have preferably a primary average grain diameter of, e.g. 0.01-10 μm, and can form a laminate having a rate of surface resistance of 10 -10 Ω/square. Material used for a binder of the static dispersive layer 3 is preferable to be polyester, urethane, acrylic resin or the like.

39. 发明专利

JPH08292609A WET DEVELOPER 失效
公开(公告)号：JPH08292609A
公开(公告)日：1996-11-05
申请号：JP9470795
申请日：1995-04-20
申请人： DAINIPPON PRINTING CO LTD
发明人： ARIYAMA MINORU , MIYAMA TAKASHI , NISHIZAWA MASUMI , IIJIMA MASAYUKI
IPC分类号： G03G9/12 , G03G9/13
摘要： PURPOSE: To obtain a developer which does not cause faults in overlappling of colors by incorporating a urethane prepolymer and a charge controlling agent into either of a dispersion medium and copolymer resin particles. CONSTITUTION: This wet developer is prepared by dispersing copolymer resin particles comprising two or more kinds of monomer components in an electric insulating dispersion medium. As for the electric insulating dispersion medium, a liquid aliphatic hydrocarbon is preferably used, and especially, a medium having >=10 Ω.cm volume resistance is preferable. The wet developer contains a coloring agent, a urethane prepolymer and a charge controlling agent such as zirconium naphthenate. The amt. of the urethane prepolymer is 0.01-1 pt.wt. to 1 pt.wt. of the coloring agent. Thereby, the obtd. wet tone has excellent dispersion stability and does not cause faults in overlapping of colors, and a high-resolution color image having excellent characteristics can be formed.

40. 发明专利

JPH08171238A WET DEVELOPER 失效
公开(公告)号：JPH08171238A
公开(公告)日：1996-07-02
申请号：JP31488194
申请日：1994-12-19
申请人： DAINIPPON PRINTING CO LTD
发明人： NISHIZAWA MASUMI , MIYAMA TAKASHI , ARIYAMA MINORU , IIJIMA MASAYUKI
IPC分类号： G03G9/12 , G03G9/13
摘要： PURPOSE: To provide a wet developer capable of ensuring tighter bonding of carbon black to a resin, not causing image blurring, more excellent in dispersion stability and capable of giving a smooth image at the time of development and to further provide a wet developer excellent in dispersion stability of toner particles because of improved wettability with a dispersive medium and fit for electrophotography, electrostatic printing and electrostatic recording by using a copolymerized resin excellent in affinity for the dispersive medium. CONSTITUTION: Particles of a copolymerized resin consisting of two or more kinds of monomers and including a colorant are dispersed in an electric insulating dispersive medium to provide the objective wet developer. Each of the particles consists of a core part insoluble in the dispersive medium and a shell part wrapping the core part and soluble or swellable in the dispersive medium. The colorant is carbon black surface-modified with an aliphatic polyamine and the copolymerized resin has hydroxy or carboxyl groups.

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