Process for the preparation of polyisocyanates containing isocyanurate
groups
    2.
    发明授权
    Process for the preparation of polyisocyanates containing isocyanurate groups 失效
    制备含有异氰脲酸酯基团的多异氰酸酯的方法

    公开(公告)号:US4837321A

    公开(公告)日:1989-06-06

    申请号:US937952

    申请日:1986-12-04

    CPC分类号: C07D251/34 C08G18/791

    摘要: The present invention is directed to a process for the preparation of isocyanurate group-containing polyisocyanates by trimerizing a portion of the isocyanate groups of an organic polyisocyanate and terminating the trimerization reaction by the addition of a catalyst poison, characterized in that the trimerization catalyst used is a quaternary phosphonium salt of a tertiary phosphine and an alkylating ester of an acid of phosphorus. The present invention also relates to the use of the polyisocyanates obtained according to this process, optionally, in a form that has been freed from excess starting polyisoyanate and/or optionally blocked with blocking agents for isocyanate groups as the isocyanate component for the preparation of polyisocyanate polyaddition products, preferably polyurethanes.

    摘要翻译: 本发明涉及一种通过将有机多异氰酸酯的一部分异氰酸酯基团三聚并通过加入催化剂毒物终止三聚反应来制备含异氰脲酸酯基的多异氰酸酯的方法,其特征在于所用的三聚催化剂为 叔膦的季鏻盐和磷酸的烷基化酯。 本发明还涉及根据本方法获得的多异氰酸酯的用途,任选地以不含过量的起始多异氰酸酯和/或任选地用异氰酸酯基团的封端剂作为异氰酸酯组分的多异氰酸酯组分 加聚产物,优选聚氨酯。

    Process for the production of compression-molded materials containing
polyisocyanate binders using latent, heat activatable catalysts
    4.
    发明授权
    Process for the production of compression-molded materials containing polyisocyanate binders using latent, heat activatable catalysts 失效
    使用潜热,可热活化的催化剂生产含有多异氰酸酯粘合剂的压塑材料的方法

    公开(公告)号:US4608407A

    公开(公告)日:1986-08-26

    申请号:US632341

    申请日:1984-07-19

    CPC分类号: C08G18/1875 C08L97/02

    摘要: The present invention is directed to a process for the production of compression-molded materials by the compression molding lignocellulose-containing materials mixed and/or impregnated with polyisocyanates as binder in the presence of catalysts, the improvement wherein the catalysts used are latent, heat-activatable catalysts based on ammonium salts of the type which can be obtained by reacting(i) monofunctional or polyfunctional, primary, secondary and/or tertiary amines with(ii) alkyl esters of acids of phosphorus.or secondary and/or tertiary amines (i) withacidic alkylester of acids of phosporous (ii) under neutralization in substantially equivalent quantities.

    摘要翻译: 本发明涉及一种通过在催化剂存在下将含有多异氰酸酯作为粘合剂混合和/或浸渍的含有木质素纤维素的压缩材料生产压缩成型材料的方法,其中使用的催化剂是潜在的, 可以通过(i)单官能或多官能,伯,仲和/或叔胺与(ii)磷酸的烷基酯反应获得的类型的铵盐的可活化催化剂。 或二级和/或叔胺(i)与酸的酸性烷基酯(ii)在中和下基本相同的量。

    Process for the preparation of polyisocyanates containing isocyanurate
groups and their use for the preparation of isocyanate-polyaddition
products
    5.
    发明授权
    Process for the preparation of polyisocyanates containing isocyanurate groups and their use for the preparation of isocyanate-polyaddition products 失效
    含有异氰脲酸酯基团的多异氰酸酯的制备方法及其制备异氰酸酯加成产物的用途

    公开(公告)号:US4499253A

    公开(公告)日:1985-02-12

    申请号:US514765

    申请日:1983-07-18

    CPC分类号: C08G18/791

    摘要: The present invention relates to a process for the preparation of polyisocyanates containing isocyanurate groups by the trimerization of a proportion of the isocyanate groups of organic polyisocyanates and termination of the trimerization reaction by the addition of a catalyst poison, characterized in that the trimerization catalysts employed are quaternary ammonium salts based on the reaction product of tertiary amines and esters of acids of phosphorus which have an alkylating action. The invention also relates to the use of the polyisocyanates with isocyanurate groups obtainable by this process, optionally in a form freed from excess starting polyisocyanates and/or optionally in a form in which the isocyanate groups are blocked with blocking agents, as isocyanate components for the preparation of isocyanate-polyaddition products, especially polyurethanes.

    摘要翻译: 本发明涉及通过一部分有机多异氰酸酯的异氰酸酯基团的三聚和通过加入催化剂毒物终止三聚反应来制备含有异氰脲酸酯基团的多异氰酸酯的方法,其特征在于所用的三聚催化剂为 基于叔胺和具有烷基化作用的磷酸的酯的反应产物的季铵盐。 本发明还涉及多异氰酸酯与通过该方法获得的异氰脲酸酯基团的用途,任选地以不含过量起始多异氰酸酯的形式和/或任选地以异氰酸酯基团用封端剂封端的形式作为异氰酸酯组分, 制备异氰酸酯加成产物,特别是聚氨酯。

    Aqueous solutions or dispersions of polyurethanes, a process for their
preparation and their use in coating compositions
    9.
    发明授权
    Aqueous solutions or dispersions of polyurethanes, a process for their preparation and their use in coating compositions 失效
    聚氨酯的水溶液或分散体,其制备方法及其在涂料组合物中的用途

    公开(公告)号:US5041494A

    公开(公告)日:1991-08-20

    申请号:US264300

    申请日:1988-10-28

    摘要: The present invention is directed to aqueous solutions or dispersions of cationically modified polyurethanes, characterized in that the dissolved or dispersed polyurethanes(i) contain about 2 to 200 milliequivalents of incorporated ammonium groups per 100 g of solids content,(ii) contain 0 to about 25% by weight of ethylene oxide units within terminal or lateral polyether chains and(iii) contain at least 1.3% by weight, calculated as SiO.sub.3 (molecular weight=76), of built-in structural units corresponding to the formula ##STR1## wherein R', R" and R"' may be the same or different and represent hydrogen or alkyl groups containing 1 to 4 carbon atoms,the total quantity of hydrophilic structural units (i) and (ii) being sufficient to ensure the solubility or dispersibility of the polyurethanes in water and the solutions or dispersions having a pH value of 3 to 6. The present invention is also directed to a process for the preparation of these storage stable aqueous solutions or dispersions and to their use as coating compounds or for the preparation of coating compositions for any substrates.

    摘要翻译: 本发明涉及阳离子改性聚氨酯的水溶液或分散体,其特征在于溶解或分散的聚氨酯(i)每100g固体含量含有约2至200毫当量的并入铵基团,(ii)含有0至约 末端或侧面聚醚链中的25重量%的环氧乙烷单元和(iii)含有至少1.3重量%(以SiO 3计(分子量= 76)计算)的内置结构单元对应于式,其中 R',R“和R”可以相同或不同,表示氢或含有1至4个碳原子的烷基,亲水结构单元(i)和(ii)的总量足以确保溶解度 或聚氨酯在水中的分散性以及pH值为3至6的溶液或分散体。本发明还涉及制备这些储存稳定的水溶液或分散体的方法 离子和它们作为涂料化合物的用途或用于制备用于任何底物的涂料组合物。