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682 条记录 (耗时 0.014 秒)

    62.
    发明专利
    失效

    公开(公告)号：JP3189520B2

    公开(公告)日：2001-07-16

    申请号：JP21175693

    申请日：1993-08-26

    IPC分类号： C07D207/452 ,  C08F22/36 ,  C08F22/40

    RESIN SHEET AND MOLDED ARTICLE USING THE SAME
    63.
    发明专利
    RESIN SHEET AND MOLDED ARTICLE USING THE SAME 失效

    公开(公告)号：JP2001146506A

    公开(公告)日：2001-05-29

    申请号：JP2000270702

    申请日：2000-09-06

    申请人： NIPPON CATALYTIC CHEM IND

    发明人： UEDA KENICHI ,  FUKADA AKIHIKO

    IPC分类号： C08J5/18 ,  B29C47/06 ,  B29C51/12 ,  B29C51/14 ,  B32B27/30 ,  C08F20/10 ,  C08F22/40

    摘要： PROBLEM TO BE SOLVED: To prepare a resin sheet using a resin that may be molded by extrusion, excellent in thermoformability and in resistance to hot water, and to provide a molded article using the same. SOLUTION: A resin sheet is provided, to be used for the formation of the surface layer of a molded article, which is formed of a methacrylic resin whose glass transition temperature is 120 deg.C or higher, such as a resin having as an essential component a polymer containing maleimide monomeric units occupying 3 wt.% or more of the whole structural units. Also provided is a molded article covered by a surface layer formed by thermoforming the above resin sheet.

    AQUEOUS POWDER SLURRY COMPOSITION, COATING MATERIAL CURABLE BY ACTINIC RADIATION, AND METHOD OF CURING THEM
    64.
    发明专利
    AQUEOUS POWDER SLURRY COMPOSITION, COATING MATERIAL CURABLE BY ACTINIC RADIATION, AND METHOD OF CURING THEM 失效

    公开(公告)号：JP2000336234A

    公开(公告)日：2000-12-05

    申请号：JP2000086234

    申请日：2000-03-27

    申请人： DAINIPPON INK & CHEMICALS

    发明人： KASHIWAGI YASUYOSHI ,  OOKA MASATAKA ,  SAKURAI MIYA ,  MIYAGAWA ATSUSHI

    IPC分类号： C08L35/00 ,  C08F2/46 ,  C08F8/46 ,  C08F22/40 ,  C08F290/00 ,  C09D4/00 ,  C09D5/00 ,  C09D201/02

    摘要： PROBLEM TO BE SOLVED: To obtain a composition which gives a cured coating film excellent in appearance and hardness and is excellent in storage stability by dispersing in an aqueous medium a compound which contains maleimido groups and is solid at a specified temperature. SOLUTION: The composition is formed by dispersing in an aqueous medium a compound (A) which contains maleimido groups and is solid at 30 deg.C, for example, an acrylic resin containing maleimido groups, having a softening point of 75 deg.C and obtained by reacting methyl methacrylate, n-butyl methacrylate and glycidyl rnethacrylate to give an epoxidized polymer and then reacting the obtained polymer with N-(5-carboxy)pentylmaleimide, or dispersing in an aqueous medium a composition which contains as the essential constituents a compound containing maleimido groups and a compound having C-C double bonds copolymerizable therewith and which is solid at 30 deg.C, or dispersing in an aqueous medium the compound A and a compound which has C-C double bonds copolymerizable with the compound A and is solid at 30 deg.C.

    BISMALEIMIDE CONTAINING MESOGENIC GROUP
    66.
    发明专利
    BISMALEIMIDE CONTAINING MESOGENIC GROUP 失效

    公开(公告)号：JP2000191640A

    公开(公告)日：2000-07-11

    申请号：JP36434599

    申请日：1999-12-22

    申请人： DAINIPPON INK & CHEMICALS

    发明人： IMAI MASARU ,  RAINER B FRINGS ,  GRAHE GERWALD F DR ,  KAWAMURA JOJI ,  KOO NAOKI

    IPC分类号： C07D207/44 ,  C07D207/452 ,  C08F22/40 ,  C08F290/04 ,  C08F290/14 ,  C08G73/12 ,  C09K19/38 ,  G02F1/13

    摘要： PROBLEM TO BE SOLVED: To obtain a mesogenic group-containing bismaleimide having two reactive terminal maleimide groups, containing a cross-linkable mesogenic group, and useful as a cross-linking agent for liquid crystals. SOLUTION: A compound of formula I (A is a 3-20C alkylene chain or the like; M is a mesogen comprising at least two rings which are bound to each other at the para-positions through a single bond, a C≡C bond, an ester bond, an amide bond or the like; R is H, a 1-8C alkyl, phenyl or a halogen). For example, a compound of formula II. The compound of formula I wherein X is C(O)0 or C(O)NH is obtained by converting a compound of formula III into the corresponding acid chloride, and then reacting two equivalents of the corresponding acid chloride with a compound of the formula: HO-M-OH or H2N-M- NH2 at a temp. of 0-70 deg.C in a proper solvent, if desired, in the presence of a catalyst and/or an acid receptor.

    POLYMERIZABLE MONOMER, ITS PRODUCTION AND ITS POLYMER
    68.
    发明专利
    POLYMERIZABLE MONOMER, ITS PRODUCTION AND ITS POLYMER 失效

    公开(公告)号：JPH11292843A

    公开(公告)日：1999-10-26

    申请号：JP9289098

    申请日：1998-04-06

    申请人： NOF CORP

    发明人： YAMADA FUMIICHIRO

    IPC分类号： C07D207/452 ,  B01J31/02 ,  C07B61/00 ,  C08F20/36 ,  C08F20/60 ,  C08F22/40

    摘要： PROBLEM TO BE SOLVED: To obtain the subject new compound containing unsaturated groups different in reactivity, useful as a cross-linkable monomer. SOLUTION: This compound is shown by formula I [R is OR or NR R (R to R are each H, >=1C alkyl or a hydroxyalkyl)] such as methyl-α-(maleimidomethyl)acrylate. The compound of formula I is obtained, for example, by reacting an α-halogen-substituted methyl acrylate of formula II (e.g. methyl-α-bromomethyl acrylate or the like) or an α-halogen-substituted methylacrylamide of formula II with a maleimide of formula III in the presence of an organic solvent (tetrahydrofuran or the like) by the use of a dehydrohalogenating agent (e.g. triethylamine or the like) as a reaction catalyst at a room temperature to 100 deg.C. The above-mentioned compound is polymerized by a polymerization method such as radical, anionic or cationic polymerization or the like to give a cross-linking type polymer having high heat resistance and high hardness.

    SEAMLESS BELT FOR ELECTROSTATIC LATENT IMAGE CARRIER, ITS PRODUCTION AND IMAGE FORMING METHOD
    69.
    发明专利
    SEAMLESS BELT FOR ELECTROSTATIC LATENT IMAGE CARRIER, ITS PRODUCTION AND IMAGE FORMING METHOD 失效

    公开(公告)号：JPH10142812A

    公开(公告)日：1998-05-29

    申请号：JP30535596

    申请日：1996-11-15

    申请人： GUNZE KK

    发明人： NISHIURA NAOKI ,  KURAOKA TAKASHI ,  KANETAKE JUNYA ,  KOBAYASHI NOBUAKI ,  MIYAMOTO TSUNEO ,  SADAMITSU TETSUO

    IPC分类号： G03G5/02 ,  C08F14/26 ,  C08F14/28 ,  C08F22/40

    摘要： PROBLEM TO BE SOLVED: To easily form a latent image having high electrostatic charges and to stably maintain the latent image by forming an outer layer of a fluorocarbon resin, forming an inner layer of a semiconducting polyimide and specifying the electrostatic capacity and conductivity of the outer layer and conductivity of the inner layer. SOLUTION: This seamless belt essentially consists of two layers of an outer layer of a fluorocarbon resin and an inner layer of a semiconducting polyimide. The outer layer has 80 to 800pF/cm electrostatic capacity and conductivity and the inner layer has 10 to 10 μS/cm conductivity. The fluorocarbon resin is preferably a copolymer or tetrafluoroethylene and perfluoroalkylvinyl ether and/or a copolymer of tetrafluoroethylene and hexafluoropropylene. The semiconducting polyimide is preferably a thermoplastic or thermosetting polyimide containing conductive carbon black.