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    PRODUCTION OF POLYISOCYANATE HAVING BIURET STRUCTURE
    6.
    发明专利
    PRODUCTION OF POLYISOCYANATE HAVING BIURET STRUCTURE 失效

    公开(公告)号：JPH10237037A

    公开(公告)日：1998-09-08

    申请号：JP5736298

    申请日：1998-02-24

    申请人： BAYER AG

    发明人： WOYNAR HELMUT DR ,  SCHMIDT MANFRED ,  GROENEN JUEGEN DR

    IPC分类号： B01F3/04 ,  C07C273/18 ,  C07C275/62 ,  C08G18/02 ,  C08G18/78 ,  G01N33/58

    摘要： PROBLEM TO BE SOLVED: To provide an one step method for producing a polyisocyanate having a biuret structure on the basis of an isocyanate having an isocyanate group bound to an aromatic group without forming an undesired solid product by- produced on the reaction of an isocyanate with an organic diamine. SOLUTION: This method for producing a polyisocyanate having a biuret structure comprises continuously mixing an organic diisocyanate having an isocyanate group bound to an aromatic group with an organic diamine having an amino group bound to an aromatic group in a mixing chamber in a molar ratio of at least 8:1, reacting the mixture at a temperature of >180 deg.C and controlling the retention time of the reaction mixture in the mixing chamber from the mixing time of the organic diisocyanate with the organic diamine maximally to 60sec.

    7.
    发明专利
    失效

    公开(公告)号：JPH05297588A

    公开(公告)日：1993-11-12

    申请号：JP25754892

    申请日：1992-09-02

    申请人： AGFA GEVAERT AG

    发明人： BORUFUGANGU POZUTSUN ,  MIHIYAERU MIYURAA ,  HERUMAN UITSUTAAHOOFUEN

    IPC分类号： G03F7/004 ,  B41M5/30 ,  B41M5/337 ,  B41M5/48 ,  C07C275/62 ,  C07D229/00 ,  C08F20/36 ,  C09D4/02 ,  G03F7/027 ,  G03F7/095 ,  G03F7/105 ,  G03F7/26

    摘要： PURPOSE: To enable a development by heating and to obtain a high resolution by forming a layer of a photopolymerizable compsn. containing specified photopolymerizable monomers on a layer supporting body. CONSTITUTION: A photopolymerizable compsn. layer having a content of at least one kind of photpolymerizable monomer expressed by formula is formed. In formula, A is a double-bonded or triple-bonded urea group, X is -O- or -NR-, (wherein R is 1 to 12C alkyl group), R is a double-bonded hydrocarbon group having 2 to 25 carbon atoms, R is a double-bonded to six-bonded straight or branched chain hydrocarbon group having 2 to 18 carbon atoms, in which the chain may be intercepted by at most three oxygen atoms, and R is H or methyl group, (n) is an integer 1 to 5, and (m) is 2 or 3.

    AQUEOUS BLOCKED POLYISOCYANATE COMPOUND
    9.
    发明专利
    AQUEOUS BLOCKED POLYISOCYANATE COMPOUND 失效

    公开(公告)号：JPH02304056A

    公开(公告)日：1990-12-17

    申请号：JP12288389

    申请日：1989-05-18

    申请人： ASAHI CHEMICAL IND

    发明人： NAKABAYASHI AKIRA ,  KAMIYANAGI KAORU

    IPC分类号： C07C265/14 ,  C07C275/62 ,  C07D213/63 ,  C07D215/20 ,  C07D251/32 ,  C08G18/80

    摘要： PURPOSE:To obtain a water-soluble or water-compatible aqueous blocked polyisocyanate compound, stably usable in a low temperature aqueous system and useful as a crosslinking agent, etc., for aqueous polymer compounds by blocking isocyanate groups in a compound with a specific thermally dissociable blocking agent. CONSTITUTION:A blocked polyisocyanate compound obtained by blocking NCO groups of a polyisocyanate compound with at least one thermally dissociable blocking agent in which at least one of the blocking agent has tertiary nitrogen atom and phenolic hydroxyl group in one molecule and at least part of the abovementioned tertiary nitrogen atom forms an organic acid salt expressed by formula I (R to R are monovalent organic group except H; Q(-) is organic acid anion residue), an inorganic acid salt expressed by formula II (Y(-) is inorganic acid anion residue or halide ion) or a quaternary ammonium salt expressed by formula III (R is same as R ; X(-) is monovalent anion).