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21. 发明专利

JP2002062639A PHOTOSENSITIVE RESIN LAMINATE 失效
公开(公告)号：JP2002062639A
公开(公告)日：2002-02-28
申请号：JP2000248703
申请日：2000-08-18
申请人： TOYO BOSEKI
发明人： OKAZAKI YASUYUKI , WADA TORU
IPC分类号： G03F7/027 , B41N1/12 , G03F7/00 , G03F7/032 , G03F7/11
摘要： PROBLEM TO BE SOLVED: To provide a photosensitive resin composition for obtaining a printing plate ensuring small dot gain in printing and free of peeling even in long-time printing. SOLUTION: (1) The photosensitive resin laminate consists at least of a substrate, a photosensitive resin layer and a cover film. After the curing of the photosensitive resin layer, the dynamic hardness of the surface part is >=0.1 and that of the interior is

22. 发明专利

JP2001005172A WATER-DEVELOPABLE PHOTOSENSITIVE FLEXOGRAPHIC PRINTING ORIGINAL PLATE 失效
公开(公告)号：JP2001005172A
公开(公告)日：2001-01-12
申请号：JP17702499
申请日：1999-06-23
申请人： TOYO BOSEKI
发明人： KAWAHARA KEIZO , OKAZAKI YASUYUKI , SATOMI HIROSHI , WADA TORU
IPC分类号： G03F7/027 , G03F7/00 , G03F7/32
摘要： PROBLEM TO BE SOLVED: To obtain a water-developable photosensitive flexographic printing original plate excellent in image reproducibility and giving a printing plate having a small dot gain and good printing performance by reproducing an image up to an image with a specified dot resolving power, a specified diameter of minimum separate points and a specified width of minimum separate lines. SOLUTION: In this water-developable photosensitive flexographic printing original plate, an image having a dot resolving power represented by 1-95% dots in 200 lines, 100 μm diameter of minimum separate points and 30 μm width of minimum separate lines can be reproduced. The original plate is obtained by adjusting the ratio (A/B) of the dynamic hardness A of the surface of an original plate to the dynamic hardness B of the inside of the plate to >=1.1. In other way, the ratio (C/D) of the dynamic hardness C of the surface of a dot part having =1.1 or the scattering of light to a wavelength necessary for image formation is suppressed.

23. 发明专利

JPH0915843A PHOTOSENSITIVE RESIN ORIGINAL BOARD AND ITS MANUFACTURE 失效
公开(公告)号：JPH0915843A
公开(公告)日：1997-01-17
申请号：JP16386295
申请日：1995-06-29
申请人： TOYO BOSEKI
发明人： TOMITA AKIRA , WADA TORU , FUJIMURA TOSHIAKI
IPC分类号： G03F7/004 , G03F7/00 , G03F7/032
摘要： PURPOSE: To provide a photosensitive resin original board in which an unexposed photosensitive resin original board is hardly deformed or dented in the preparing process operation or moving work by it, the cold flow of a photosensitive resin layer is improved to provide satisfactory solid state stability, and the long-term storage is facilitated. CONSTITUTION: In a photosensitive resin original board having a photosensitive resin composition laminated as photosensitive layer on a support body, the photosensitive resin composition mainly contains a polymer compound, a photopolymerizing unsaturated compound and a photopolymerization initiator, and has a sea-island structure, in which the island part consists of dispersed particles with an average particle diameter of 1μm or more and is present in 40% by capacity or more in the photosensitive resin composition, and the dispersed particles are in contact to each other.

24. 发明专利

JPH03164241A PREPARATION OF METAL FOIL-LAMINATED CONTINUOUS LENGTH 失效
公开(公告)号：JPH03164241A
公开(公告)日：1991-07-16
申请号：JP30565189
申请日：1989-11-24
申请人： TOYO BOSEKI
发明人： UNO KEIICHI , WATANABE OSAMU , KURITA TOMOHARU , WADA TORU
IPC分类号： B32B15/088 , B32B15/08 , H05K3/00
摘要： PURPOSE:To obtain high heat resistance and to obtain easily a metal foil double- clad laminated continuous lengths by adhering a metal foil or a heat-resistant film with a resin layer formed on the metal foil or the heat-resistant film. CONSTITUTION:At least one face of a metal foil or a heat-resistant film is coated with a soln. of a resin wherein an org. solvent-soluble polyimide resin and/or polyamideimide resin are main ingredients in an org. solvent and it is dried so as to obtain a volatile content of 1-30wt.% to form a resin layer. A plurality of heat-resistant films are piled up so as to make the resin layers face to face each other or on a metal foil or a resin layer of the heat-resistant film, another metal foil or heat-resistant film is piled up and they are wound in a roll shape. The metal foil laminated body wound in a roll shape is heated at 150-250 deg.C to remove an org. solvent in the resin layer. When the volatile content is less than 1wt.%, the resin layer does not have enough adhesive properties and in the contrary, when the volatile content exceeds 30wt.%, a volatile org. solvent remains in the laminated body or generates air bubbles.

25. 发明专利

JPH03157429A POLYAMIDE IMIDE RESIN 失效
公开(公告)号：JPH03157429A
公开(公告)日：1991-07-05
申请号：JP29659789
申请日：1989-11-15
申请人： TOYO BOSEKI
发明人： KURITA TOMOHARU , WADA TORU , UNO KEIICHI
IPC分类号： C08G73/14 , C08J5/18
摘要： PURPOSE:To obtain the title resin containing an amine residue expressed by a specific formula as an amino component at a specific ratio, having excellent heat resistance and processability and good mechanical characteristics and electrical characteristics and useful for film, etc. CONSTITUTION:The aimed resin containing (A) an acid component consisting of (i) 100-60mol% trimellitic acid residue and (ii) 0-40mol% other aromatic polyfunctional carboxylic acid residue other than trimellitic acid and (B) amino component consisting of (iii) 95-70mol% amine residue expressed by the formula (R1 and R2 are separately or simultaneously H or 1-4C alkyl) and (iv) 5-30mol% aromatic diamine residue other than the component iii. Furthermore, e.g. terephthalic acid is preferably used as the component A and p-phenylene diamine is preferably used as the component B.

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