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    Process for preparing isocyanate homopolymers containing uretdione groups
    1.
    发明授权
    Process for preparing isocyanate homopolymers containing uretdione groups 有权
    制备含有脲二酮基团的异氰酸酯均聚物的方法

    公开(公告)号：US09518142B2

    公开(公告)日：2016-12-13

    申请号：US14907153

    申请日：2014-03-03

    申请人： Wanhua Chemical (Ningbo) Co., Ltd. ,  Wanhua Chemical Group Co., Ltd.

    发明人： Lidong Sun

    IPC分类号： C08G18/02 ,  C08G18/16 ,  C07F9/54

    CPC分类号： C08G18/027 ,  C07F9/5414 ,  C08G18/168

    摘要： The present invention relates to a process for preparing isocyanate homopolymers containing uretdione groups, in which the phosphinoboron compound of formula (I) are used as catalysts to catalyze the homopolymerization reaction of raw isocyanates, thereby obtaining a solution of isocyanate homopolymers having uretdione groups, then separating the solution and thus obtaining the isocyanate homopolymers containing uretdione groups. The isocyanate homopolymers containing uretdione groups prepared by this process have a high amount of the uretdione groups, wherein the dependence of the amount on the conversion rate of raw isocyanates is significantly ameliorated, with low chromaticities.

    Polyadducts containing uretidone groups
    6.
    发明授权
    Polyadducts containing uretidone groups 有权
    含有uretidone基团的多元体系

    公开(公告)号：US06987158B2

    公开(公告)日：2006-01-17

    申请号：US10613725

    申请日：2003-07-03

    申请人： Hans-Josef Laas ,  Reinhard Halpaap ,  Peter Thometzek ,  Michael Grahl ,  Hans-Ulrich Meier-Westhues

    发明人： Hans-Josef Laas ,  Reinhard Halpaap ,  Peter Thometzek ,  Michael Grahl ,  Hans-Ulrich Meier-Westhues

    IPC分类号： C08G18/79 ,  C08G18/80 ,  C08G18/73 ,  C08G18/75 ,  C07D229/00

    CPC分类号： C08G18/2036 ,  C07D229/00 ,  C08G18/027 ,  C08G2150/00 ,  C08G2150/20

    摘要： Polyaddition compounds containing uretdione groups prepared by reacting uretdione polyisocyanates formed from diisocyanates having exclusively secondary- and/or tertiary-attached isocyanate groups with a molar fraction of isocyanurate structures, based on the sum of uretdione groups and isocyanurate groups, of not more than 10%, with compounds reactive towards isocyanates. The polyaddition compounds can be use as a starting component in the preparation of polyurethane plastics, in particular as crosslinkers for heat-crosslinkable powder coating materials. The compounds may be used as starting components in the preparation of moldings and shaped parts, and as starting components in the preparation of coating materials and coatings.

    摘要翻译： 通过使仅由二级和/或三级连接的异氰酸酯基组成的二异氰酸酯形成的脲二酮多异氰酸酯与基于脲二酮基团和异氰脲酸酯基团的总量的异氰脲酸酯结构的摩尔分数反应制备的含有脲二酮基团的加聚化合物不超过10％ 具有对异氰酸酯反应的化合物。 加聚化合物可用作制备聚氨酯塑料的起始组分，特别是作为热交联粉末涂料的交联剂。 这些化合物可以用作制备模塑件和成型件的起始组分，并且可用作制备涂料和涂料的起始组分。

    Method for catalytic dimerization of isocyanates
    8.
    发明申请
    Method for catalytic dimerization of isocyanates 有权
    异氰酸酯的催化二聚方法

    公开(公告)号：US20040014970A1

    公开(公告)日：2004-01-22

    申请号：US10432050

    申请日：2003-05-19

    发明人： Jean-Marie Bernard

    IPC分类号： C07D251/54 ,  C07C263/16

    CPC分类号： C08G18/168 ,  C08G18/027

    摘要： The invention concerns a method for preparing polyisocyanates by cyclodimerization of isocyanate functions borne by initial monomer isocyanates. The invention is characterised in that it comprises steps which consist in: a) providing a reaction medium comprising initial monomer isocyanates, optionally in the presence of a solvent; b) adding to said reaction mixture a (cyclo)dimerization catalyst comprising a compound of the family of super acids; c) heating the reaction medium to a temperature ranging between 0null C. and 300null C., advantageously between 20null C. and 200null C. until the desired rate of transformation is obtained; d) optionally inactivating or eliminating the reaction catalyst; and e) optionally eliminating the unreacted monomer.

    摘要翻译： 本发明涉及一种通过由初始单体异氰酸酯承载的异氰酸酯官能团的环二聚制备多异氰酸酯的方法。 本发明的特征在于其包括以下步骤：a）提供包含初始单体异氰酸酯的反应介质，任选在溶剂存在下; b）向所述反应混合物中加入包含超酸族的化合物的（环）二聚催化剂; c）将反应介质加热到0℃至300℃之间的温度，有利地在20℃至200℃之间，直到获得所需的转化速率; d）任选灭活或除去反应催化剂; 和e）任选地除去未反应的单体。

    Method of dimerizing isophorone diisocyanate
    9.
    发明申请
    Method of dimerizing isophorone diisocyanate 失效
    二异氰酸异佛尔酮二异氰酸酯的方法

    公开(公告)号：US20030013872A1

    公开(公告)日：2003-01-16

    申请号：US10144608

    申请日：2002-05-13

    发明人： Hans-Josef Laas ,  Reinhard Halpaap ,  Frank Richter ,  Jurgen Kocher

    IPC分类号： C07D205/08 ,  B01J031/00

    CPC分类号： C08G18/798 ,  C08G18/027

    摘要： The invention relates to a method of preparing a polyisocyanate with at least one uretdione group by oligomerizing part of the isocyanate groups of isophorone diisocyanate in the presence of a catalyst which accelerates the dimerization of isocyanate groups, wherein the oligomerization catalyst comprises a saline compound comprising from 10 to 100 wt. % of 1,2,3- and/or 1,2,4-triazolate structures (calculated as C2N3; molecular weightnull66) in the anion, and the products prepared by this method.

    摘要翻译： 本发明涉及一种通过在促进异氰酸酯基团二聚化的催化剂存在下使异佛尔酮二异氰酸酯的一部分异氰酸酯基团低聚来制备具有至少一个脲二酮基团的多异氰酸酯的方法，其中该低聚催化剂包括含有 10〜100重量％ 阴离子中1,2,3-和/或1,2,4-三唑酸酯结构的％（以C2N3计算;分子量= 66），以及通过该方法制备的产物。