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    • 1. 发明授权
    • Process for the preparation of viscosity stable polyurethane solutions
    • 制备粘度稳定的聚氨酯溶液的方法
    • US4530990A
    • 1985-07-23
    • US433596
    • 1982-10-08
    • Reinhard HalpaapJosef PedainWilhelm ThomaJurgen Grammel
    • Reinhard HalpaapJosef PedainWilhelm ThomaJurgen Grammel
    • C08G18/00C08G18/10C08G18/65C08G2/28C08G18/08
    • C08G18/10
    • A process is described for the preparation of predominantly linear polyurethane solutions which comprises(a) reacting(A) an organic diisocyanate or diisocyanate mixture optionally containing small portions of a triisocyanate with(B) one or more polyhydroxyl compounds which are predominantly bifunctional and generally have molecular weights of from about 400 to 5000 and(C) optionally one or more chain lengthening agents having at least two isocyanate reactive hydrogen atoms and molecular weights of from about 32 to 399, wherein the proportion of isocyanate groups to the number of isocyanate-reactive hydrogen atoms is in the range of from about 0.9:1 to 1:0.9, and(b) when the polyurethane formed has reached the required viscosity, adding a monofunctional, low molecular weight oxime having a molecular weight of from about 73 to 325, preferably butanone oxime, to the reaction mixture as chain breaking agent in a quantity equivalent to or in excess of the equivalents of unreacted isocyanate groups.The new chain breaking agents are simple compounds which effect rapid chain breaking and have no undesirable side effects as regards subsequent breakdown of the chains and even enable further synthesizing reactions to be carried out if desired, for example with diamines.
    • 描述了用于制备主要为线性聚氨酯溶液的方法,其包括(a)使(A)任选地含有少量三异氰酸酯的有机二异氰酸酯或二异氰酸酯混合物与(B)一种或多种主要是双官能的多羟基化合物反应,并且通常具有 约400至5000的分子量和(C)任选的一种或多种具有至少两个异氰酸酯反应性氢原子和分子量为约32至399的链延长剂,其中异氰酸酯基团与异氰酸酯反应性数目的比例 氢原子在约0.9:1至1:0.9的范围内,和(b)当所形成的聚氨酯达到所需粘度时,加入分子量为约73至325的单官能低分子量肟, 优选丁酮肟作为断链剂的反应混合物,其量等于或超过未反应的异氰酸酯的当量 anate组。 新的断链剂是简单的化合物,其能够快速断链,并且对链的随后分解没有不期望的副作用,并且甚至能够进一步合成反应,如果需要,例如用二胺进行。
    • 2. 发明授权
    • Polyisocyanates containing uretdione and/or isocyanurate groups, a
process for their production
    • 含有URETDIONE和/或异氰酸酯基团的聚异氰酸酯,其生产过程
    • US5237058A
    • 1993-08-17
    • US774687
    • 1991-10-11
    • Hans J. LaasReinhard HalpaapJosef Pedain
    • Hans J. LaasReinhard HalpaapJosef Pedain
    • C07D229/00C07D251/34C08G18/79C09D175/00C09D175/04
    • C07D229/00C08G18/792C08G18/798
    • The present invention relates to a process for the production of polyisocyanates containing uretdione and/or isocyanurate groups bya) partially oligomerizing the isocyanate groups of organic diisocyanates to form uretdione and/or isocyanurate groups in the presence of catalysts containing trivalent phosphorus,b) terminating the oligomerization reaction at the desired degree of oligomerization by converting the catalyst into a catalytically inactive oxidized form by the addition of an oxidizing agent andc) subsequently removing unreacted diisocyanate by thin-layer distillation.The present invention also relates to the polyisocyanates containing uretdione and/or isocyanurate groups obtained by this process.Finally, the present invention also relates to the use of these polyisocyanates, optionally blocked with blocking agents for isocyanate groups, as the isocyanate component in polyurethane coating compositions.
    • 本发明涉及通过以下方法制备含有脲二酮和/或异氰脲酸酯基团的多异氰酸酯的方法:a)在含有三价磷的催化剂存在下,部分低聚有机二异氰酸酯的异氰酸酯基团以形成脲二酮和/或异氰脲酸酯基团,b)终止 通过加入氧化剂将催化剂转化成催化惰性氧化形式,并且c)通过薄层蒸馏随后除去未反应的二异氰酸酯,从而在所需的低聚程度下进行低聚反应。 本发明还涉及通过该方法获得的含有脲二酮和/或异氰脲酸酯基团的多异氰酸酯。 最后,本发明还涉及这些聚异氰酸酯,任选地用封端剂封端的异氰酸酯基团作为聚氨酯涂料组合物中的异氰酸酯组分的用途。
    • 7. 发明授权
    • Process for the production of combinations of organic polyisocyanates
and at least partly blocked polyamines, the combinations obtainable by
this process and their use for the production of lacquers, coating or
sealing compositions
    • 用于生产有机多异氰酸酯和至少部分封闭的多胺的组合的方法,可通过该方法获得的组合及其用于生产漆,涂料或密封组合物的用途
    • US4481345A
    • 1984-11-06
    • US583918
    • 1984-02-27
    • Klaus NachtkampManfred BockReinhard HalpaapJosef Pedain
    • Klaus NachtkampManfred BockReinhard HalpaapJosef Pedain
    • C09K3/10C08G18/10C08G18/32C08G18/65C09D175/00C09D175/02C09D175/04C08G18/38
    • C08G18/3256C08G18/10
    • Process for the production of water-hardenable compositions of organic polyisocyanates and polyamines containing at least partly blocked amino groups present as ketimines, the combinations essentially representing mixtures and optionally reaction products containing urea groups by mixing the organic polyisocyanates with the polyamines in such quantities that the equivalent ratio of isocyanate groups to blocked and free amino groups is between about 0.9:1 and 4:1 and reacting any free amino groups present with some of the isocyanate groups in the polyisocyanate to form ureas, characterized in that the polyamines containing at least partly blocked amino groups used are mixtures comprising(a) from about 50 to 95 amine equivalent percent of organic compounds which are free from primary and secondary amino groups and which contain at least two ketimine groups corresponding to the following formula ##STR1## in which R.sup.1 represents an alkyl or cycloalkyl radical and R.sup.2 represents hydrogen or an alkyl or cycloalkyl radical or in which R.sup.1 and R.sup.2 form a cycloaliphatic hydrocarbon radical together with the two carbon atoms of the ketimine group and(b) from about 5 to 40 amine equivalent percent of organic compounds which are free from primary and secondary amino groups and which contain at least two ketimine groups of which one corresponds to the formula ##STR2## in which R.sup.1 and R.sup.2 are as defined above, the other ketimine group(s) present correspond(s) to the formula shown in (a).
    • 用于生产有机多异氰酸酯和含有至少部分封闭的胺基的多胺的水可硬化组合物作为酮亚胺存在的方法,所述组合基本上代表混合物和任选的含有尿素基团的反应产物,通过将有机多异氰酸酯与多胺混合, 异氰酸酯基与封端和游离氨基的当量比为约0.9:1至4:1,并使与多异氰酸酯中存在的一些异氰酸酯基团存在的任何游离氨基反应形成脲,其特征在于,含有至少部分 使用的封闭氨基是包含(a)约50至95胺当量百分比的不含伯和仲氨基并且含有至少两个对应于下式的酮亚胺基的有机化合物的混合物:其中R 1表示 烷基或环烷基,R 2表示氢或a n烷基或环烷基,或其中R1和R2与酮亚胺基团的两个碳原子一起形成脂环族烃基,和(b)约5至40胺当量百分比的不含伯和仲氨基的有机化合物 并且其包含至少两个酮亚胺基,其中一个对应于式(Ia)其中R 1和R 2如上所定义的式“IMAGE”,其它酮亚胺基与(a)所示的式表示。
    • 10. 发明授权
    • Uretdione diisocyanates and a process for their production
    • 脲二异氰酸酯及其制备方法
    • US5750629A
    • 1998-05-12
    • US788726
    • 1997-01-23
    • Hans-Josef LaasReinhard HalpaapJosef PedainKlaus Konig
    • Hans-Josef LaasReinhard HalpaapJosef PedainKlaus Konig
    • B01D3/28B01J31/24C07B61/00C07D229/00C08G18/79C08G18/80C09D175/00C09D175/04
    • C08G18/8016C07D229/00C08G18/798
    • The present invention relates to a process for preparing pure bis(isocyanatoalkyl)monouretdiones corresponding to formula (I) ##STR1## wherein R represents identical or different, linear or branched alkyl groups having 4 to 9 carbon atoms, by oligomerizing at least a portion of the isocyanate groups of aliphatic diisocyanates in the presence of catalysts which accelerate the dimerization of isocyanate groups, terminating the reaction at the desired degree of oligomerization, removing unreacted excess diisocyanate by extraction or thin film distillation to obtain a distillation residue, subjecting the distillation residue to thin film distillation at a temperature of 160.degree. to 220.degree. C. and a pressure of 0.01 to 1.0 mbar and obtaining bis(isocyanato-alkyl)monouretdiones corresponding to formula (I) as the distillate. The present invention also relates to the resulting bis(isocyanato-alkyl)monouretdiones corresponding to formula I and to their use for the production of polyisocyanate addition products, in particular as the isocyanate components in polyurethane coatings compositions, in which the isocyanate groups may optionally be present in blocked form.
    • 本发明涉及一种制备对应于式(I)的纯双(异氰酸根合烷基)单脲基的方法,其中R表示相同或不同的具有4至9个碳原子的直链或支链烷基,至少通过低聚 一部分脂族二异氰酸酯的异氰酸酯基团在催化剂存在下加速异氰酸酯基团的二聚反应,以期望的低聚程度终止反应,通过萃取或薄膜蒸馏除去未反应的过量二异氰酸酯,得到蒸馏残渣, 蒸馏残渣,在160〜220℃的温度和0.01〜1.0mbar的压力下进行薄膜蒸馏,得到与式(I)相应的作为馏出物的双(异氰酸基 - 烷基)单脲。 本发明还涉及所得到的对应于式I的双(异氰酸根合 - 烷基)单脲基团,以及其用于制备多异氰酸酯加成产物的用途,特别是作为聚氨酯涂料组合物中的异氰酸酯组分,其中异氰酸酯基团可任选地为 以阻塞形式存在。