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1. 发明专利

JP2001005173A WATER-DEVELOPABLE PHOTOSENSITIVE FLEXOGRAPHIC PRINTING PLATE 失效
公开(公告)号：JP2001005173A
公开(公告)日：2001-01-12
申请号：JP17702699
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 plate excellent in image reproducibility and having a small dot gain and good printing performance by making the ratio of the dynamic hardness of the surface of a dot part having a specified density or below to the dynamic hardness of the surface of a solid part having 100% density a specified value or above. SOLUTION: In this water-developable photosensitive flexographic printing plate, the ratio (A/B) of the dynamic hardness A of the surface of a dot part having >=50% density to the dynamic hardness B of the surface of a solid part having 100% density is >=1.1. In the case of A/B>=1.1, ink on the solid part is satisfactorily transferred under low printing pressure, the dot part is sharply printed without crushing and well-balanced printed matter is obtained. In the case of A/B

2. 发明专利

JP2001005171A WATER-DEVELOPABLE PHOTOSENSITIVE FLEXOGRAPHIC PRINTING PLATE 失效
公开(公告)号：JP2001005171A
公开(公告)日：2001-01-12
申请号：JP17702599
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： G03F7/00
摘要： PROBLEM TO BE SOLVED: To obtain a water developable photosensitive flexographic printing plate excellent in image reproducibility and having a small dot gain and good printing performance by making the ratio of the dynamic hardness of the surface of a printing plate to the dynamic hardness of the inside of the printing plate a specified value or above. SOLUTION: In this water developable photosensitive flexographic printing plate, the ratio (A/B) of the dynamic hardness A of the surface of the printing plate to the dynamic hardness B of the inside of the printing plate is >=1.1. In the case of A/B>=1.1, the surface of the printing plate has a higher hardness than the inside and this hardness difference produces a cushioning effect and prevents deformation in printing. The transfer of ink to a body to be printed is carried out faithfully to the shape of the printing pate, dot gain peculiar to flexographic printing is reduced and clear printed matter is obtained. In the case of A/B

3. 发明专利

JPH11305431A PHOTOSENSITIVE RESIN COMPOSITION AND PHOTOSENSITIVE RESIN PRINTING PLATE 失效
公开(公告)号：JPH11305431A
公开(公告)日：1999-11-05
申请号：JP10770098
申请日：1998-04-17
申请人： TOYO BOSEKI
发明人： OKAZAKI YASUYUKI , WADA TORU , IMAHASHI SATOSHI
IPC分类号： G03F7/004 , C08F2/48 , C08F20/26 , C08F290/06 , G03F7/00 , G03F7/033
摘要： PROBLEM TO BE SOLVED: To provide a photosensitive resin compsn. to provide a photosensitive resin printing plate having high plate strength and printing performance by incorporating a thermoplastic elastomer, an ester compd. of an ethylene type unsatd. alcohol and an acid having a cyclic part, and a photopolymn. initiator. SOLUTION: This compsn. contains (A) a thermoplastic elastomer, (B) an ester compd. of an ethylene type unsatd. alcohol and an acid having a cyclic part, and (C) a photopolymn. initiator. The ethylene type unsatd. alcohol is an alcohol having photopolymerizable carbon-carbon unsatd. bond, and for example, allylalcohol and hydroxyalkyl(meth)acrylate can be used. As for the acid having a cyclic part, cyclohexane carboxylic acid and phthalic acid can be used, and phthalic acid is preferable. The amt. of the component (B) is 1 to 100 pts.wt., preferably 5 to 80 pts.wt., especially 10 to 60 pts.wt., to 100 pts.wt. of the thermoplastic elastomer (A).

4. 发明专利

JPH10339951A PHOTOSENSITIVE RESIN COMPOSITION 失效
公开(公告)号：JPH10339951A
公开(公告)日：1998-12-22
申请号：JP15123197
申请日：1997-06-09
申请人： TOYO BOSEKI
发明人： OSHITA CHIHIRO , WADA TORU , NAKAMORI MASAHIKO
IPC分类号： G03F7/027 , C08F2/48 , C08L21/00 , G03F7/00 , G03F7/028 , G03F7/032 , G03F7/033 , G03F7/035 , G03F7/038
摘要： PROBLEM TO BE SOLVED: To suppress scattering of light in a photosensitive resin compsn. by controlling the difference between the refractive index of a hydrophobic polymer as the main component of a core phase and the refractive index of the mixture of a hydrophobic polymer as the main component of a matrix phase and a non-gaseous ethylene-type unsatd. compd. to not more than a specified value. SOLUTION: This resin compsn. has a phase separation structure which consists of dispersed particles comprising a core phase as the core and a shell phase covering the core, and a matrix phase surrounding the particles. The core phase essentially consists of a noncrosslinking hydrophobic polymer having a glass transition temp of

5. 发明专利

JPH03217473A COATING AGENT COMPOSITION AND PRINTED WIRING BOARD USING SAME COMPOSITION 失效
公开(公告)号：JPH03217473A
公开(公告)日：1991-09-25
申请号：JP1418890
申请日：1990-01-23
申请人： TOYO BOSEKI
发明人： WADA TORU , INUKAI TADASHI , KURITA TOMOHARU , KUROSE NORIO , ABE SHUNZO , UNO KEIICHI
IPC分类号： B32B15/08 , C09D163/00 , C09D179/08 , H05K3/28
摘要： PURPOSE:To obtain the title composition useful in printing field, having excellent heat resistance and flexibility, by blending a polyamide-imide resin with epoxy compound, inorganic or organic filler and solvent for polyamide-imide in a specific ratio into specific viscosity and specific thixotropy index. CONSTITUTION:A composition which comprises a polyamide-imide resin and an epoxy compound (e.g. bisphenol A type epoxy resin) in the weight ratio of (100/0)-(50/50), 0-100 pts.wt. based on 100 pts.wt. of the polyamide-imide resin of an inorganic (e.g. talc) and/or organic (e.g. polystyrene) filler and 100-1,900 pts.wt. solvent (e.g. dimethylacetamide) for polyamide-imide is adjusted to 10-1,000 poise viscosity and 1.0-5.0 thixotropy index to give the objective composition.

6. 发明专利

JPH03164240A LAMINATED BODY 失效
公开(公告)号：JPH03164240A
公开(公告)日：1991-07-16
申请号：JP30565089
申请日：1989-11-24
申请人： TOYO BOSEKI
发明人： KURITA TOMOHARU , WADA TORU , UNO KEIICHI
IPC分类号： B32B15/088 , B32B15/08 , H05K1/03
摘要： PURPOSE:To obtain a laminate which has an excellent adhesive property and hardly curls itself by providing a film which comprises a polyimide resin or a polyamideimide resin wherein a specific amine residue having an imide or amide bonding is contained at least in a specific amount based on the whole amine residue, and a metal foil to be laminated on the film. CONSTITUTION:The title laminated body is provided with a film which is essentially composed of a polyimide resin or a polyamideimide resin wherein an amide residue component of formula I forming an imide or amide bonding is contained at least 60mol% based on the whole amine residue, and a metal foil laminated on the film. In the formula R1 and R2 each are hydrogen or a 1-4C alkyl group, and they may be same each other. As a material to be used for containing an amine residue of the formula I, tolydine, tolydineisocyanate, etc., may be mentioned. When the content of the amine residue is less than 60mol%, curling of a metal laminate and etched product becomes great.

7. 发明专利

JPH03133634A HEAT RESISTANT LAMINATED BODY AND PRODUCTION THEREFOR 失效
公开(公告)号：JPH03133634A
公开(公告)日：1991-06-06
申请号：JP27337489
申请日：1989-10-19
申请人： TOYO BOSEKI
发明人： WADA TORU , KURITA TOMOHARU , UNO KEIICHI
IPC分类号： B32B15/088 , H05K1/03 , H05K3/38
摘要： PURPOSE:To obtain a heat resistant laminated body which has heat resistance sufficiently durable to heat at a time of soldering and is inexpensive and excellent in physical properties such as flexibility by laminating polyimide-based resin and/or polyamideimide-based resin via an epoxy-based heat resistant adhesive and further more forming the metallic foil layers on both surfaces of these resin layers. CONSTITUTION:A metallic foil is laminated on single face of a heat resistant resin layer made of polyimide-based resin and/or polyamideimide-based resin. The resin layers of this laminated body are mutually joined via an epoxy-based heat resistant adhesive. The utilized polyimide-based resin is a polymer having the repeated unit of polyimide shown in a formula I. In the formula, R shows a residual group of aromatic diamine or diisocyanate. R shows a residual group formed by leaving carboxylic acid derivative part of aromatic tetracarboxylic acid derivative part. Polyamideimide-based resin is a polymer having the repeated unit of polyamideimide shown in a formula II. In the formula, R shows a residual group formed by leaving amino group of aromatic diamine or diisocyanate. R shows a residual group formed by leaving the carboxylic acid derivative part of aromatic tetracarboxylic acid derivatives.

8. 发明专利

JP2005031186A PHOTOSENSITIVE RESIN COMPOSITION AND PHOTOSENSITIVE RESIN ORIGINAL PRINTING PLATE USING THE SAME 审中-公开
公开(公告)号：JP2005031186A
公开(公告)日：2005-02-03
申请号：JP2003193554
申请日：2003-07-08
申请人： TOYO BOSEKI
发明人： HIRAMATSU TOMONORI , WADA TORU , TOMITA AKIRA
IPC分类号： G03F7/033 , G03F7/00 , G03F7/004 , G03F7/027
摘要： PROBLEM TO BE SOLVED: To obtain without difficulty a photosensitive resin composition and a photosensitive resin original printing plate developable with a water-based developer and having resistance to a water-based ink and good image reproducibility. SOLUTION: The photosensitive resin composition contains (A) at least two or more hydrophobic polymers obtained from water dispersive latexes, (B) a hydrophilic polymer, (C) a photopolymerizable compound, (D) a photopolymerization initiator and (E) a viscosity control agent. The photosensitive resin original printing plate uses the same. COPYRIGHT: (C)2005,JPO&NCIPI

9. 发明专利

JP2003177514A PHOTOSENSITIVE PRINTING ORIGINAL PLATE 审中-公开
公开(公告)号：JP2003177514A
公开(公告)日：2003-06-27
申请号：JP2001374675
申请日：2001-12-07
申请人： TOYO BOSEKI
发明人： WADA TORU , MOTOI KEIICHI , TAGUCHI YUJI , IMAHASHI SATOSHI
IPC分类号： G03F7/004 , B41N1/14 , C08F30/02 , G03F7/00
摘要： PROBLEM TO BE SOLVED: To provide a photosensitive CTP flexographic printing original plate in which a photosensitive resin layer has excellent workability and a cured body has excellent transparency and elasticity at low temperature, an IR ablation layer has high sensitivity, and both the layers can be developed with water or a water-base liquid as a developing solution. SOLUTION: The photosensitive printing original plate has at least (A) a support, (B) a photosensitive resin layer and (C) an IR ablation layer, wherein (B) the photosensitive resin layer contains a copolymer having at least one phosphoric ester group, (C) the IR ablation layer comprises at least one binder and at least one IR absorbing material and the thermal decomposition initiating temperature of the binder in air is ≤250°C. COPYRIGHT: (C)2003,JPO

10. 发明专利

JPH11295891A PHOTOSENSITIVE RESIN COMPOSITION AND PHOTOSENSITIVE RESIN PLATE 失效
公开(公告)号：JPH11295891A
公开(公告)日：1999-10-29
申请号：JP10477198
申请日：1998-04-15
申请人： TOYO BOSEKI
发明人： NAKAMORI MASAHIKO , WADA TORU , IMAHASHI SATOSHI
IPC分类号： G03F7/027 , G03F7/00 , G03F7/028 , G03F7/032
摘要： PROBLEM TO BE SOLVED: To obtain a photosensitive resin plate having high plate strength and printing performance by using a photosensitive elastomer compsn. containing a specified photopolymerizable ethylenic monomer. SOLUTION: The photosensitive resin compsn. used contains a thermoplastic elastomer (A), an ester compd. (B) of an ethylenic unsatd. acid and an alcohol having a cyclic part, and a photopolymn. initiator (C). The ester compd. as the component (B) comprising an ethylenic unsatd. acid and an alcohol having a cyclic part is a compd. produced by ester coupling of an ethylenic unsatd. acid and an alcohol having a cyclic part, and it causes polymn. reaction by the photopolymn. initiator. The cyclic part is an aromatic or alicyclic group. Moreover, other-ethylenic unsatd. compds. may be compounded as well as the component (B) in the photosensitive resin compsn.

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