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21. 发明授权

US5389718A Two-component aqueous polyurethane dispersions 失效
标题翻译：双组分水性聚氨酯分散体
公开(公告)号：US5389718A
公开(公告)日：1995-02-14
申请号：US249486
申请日：1994-05-26
申请人： Terry A. Potter , Patricia B. Jacobs , Peter H. Markusch , James W. Rosthauser
发明人： Terry A. Potter , Patricia B. Jacobs , Peter H. Markusch , James W. Rosthauser
IPC分类号： C08G18/08 , C08G18/10 , C08G18/28 , C08G18/50 , C08G18/79 , C08L75/04
CPC分类号： C08G18/792 , C08G18/0819 , C08G18/10 , C08G18/283 , C08G18/5042 , Y10S524/906
摘要： The present invention relates to a two-component, aqueous polyurethane coating composition which may be cured at ambient temperature and which containsI) a first component based on an aqueously dispersed polyurethane wherein the polyurethane hasa) an average hydroxy functionality of at least 1.8b) a total content of urethane and urea groups, calculated as --NH--C--O--, of 9 to 20% by weight, based on the weight of the polyurethane, andc) sufficient chemically incorporated anionic groups andd) ethylene oxide units incorporated within terminal and/or lateral polyether chainsto maintain the polyurethane stably dispersed in water, andII) a second component based on a water dispersible polyisocyanate wherein the polyisocyanate hasa) an isocyanate content of 2 to 30% by weight, based on the weight of the polyisocyanate,b) an average functionality of at least 1.8 andc) sufficient chemically incorporated anionic groups andd) ethylene oxide units incorporated within terminal and/or lateral polyether chainsto maintain the polyisocyanate stably dispersed in water, and components I and II are present in an amount sufficient to provide an equivalent ratio of isocyanate groups to hydroxyl groups of 0.8:1 to 6:1.The present invention is also directed to the coatings prepared from these coating compositions.
摘要翻译：本发明涉及双组分水性聚氨酯涂料组合物，其可以在环境温度下固化，并且其包含I）基于高分散聚氨酯的第一组分，其中所述聚氨酯具有a）至少1.8b的平均羟基官能度）基于聚氨酯的重量计，氨基甲酸酯和尿素基团的总含量（以-NH-CO-计算）为9至20重量％，以及c）足够的化学引入的阴离子基团和d）掺入到其中的环氧乙烷单元末端和/或侧面聚醚链以保持聚氨酯稳定地分散在水中，和II）基于水分散性多异氰酸酯的第二组分，其中多异氰酸酯的a）异氰酸酯含量为2-30重量％，基于多异氰酸酯，b）至少1.8的平均官能度，和c）足够化学引入的阴离子基团，和d）结合在末端和/或之后的环氧乙烷单元以保持多异氰酸酯稳定地分散在水中，并且组分I和II以足以提供异氰酸酯基与羟基的当量比为0.8:1至6:1的量存在。本发明还涉及由这些涂料组合物制备的涂料。

22. 发明授权

US5175350A Melt crystallization process for preparing high trans, trans-isomer containing 4,4'-diisocyanato dicyclohexylmethane 失效
标题翻译：用于制备含有4,4'-二异氰酸酯基二环己基甲烷的高反式异构体的熔融结晶方法
公开(公告)号：US5175350A
公开(公告)日：1992-12-29
申请号：US836639
申请日：1992-02-14
申请人： Stephen D. Seneker , Kenneth L. Dunlap , Michael K. Lowery , Terry A. Potter
发明人： Stephen D. Seneker , Kenneth L. Dunlap , Michael K. Lowery , Terry A. Potter
IPC分类号： C07C263/20 , C08G18/75
CPC分类号： C08G18/758 , C07C263/20 , C07C2101/14
摘要： The present invention is directed for preparing a 4,4'-diisocyanato dicyclohexylmethane which contain a relatively high amount of the trans,trans-isomer. The process broadly comprises (a) melting a mixture of 4,4'-diisocyanato dicyclohexyl-methane isomers, (b) cooling the melted mixture to form: (1) a liquid phase and (2) a solid phase, (c) removing said liquid phase, which is a commercially viable product itself, (d) heating the solid phase and removing that portion of the solid phase which has melted, and (e) recovering that portion of said solid phase which has not melted by heating the remaining portion.
摘要翻译：本发明涉及制备含有相对高量的反式异构体的4,4'-二异氰酸酯基二环己基甲烷。该方法广泛地包括（a）熔化4,4'-二异氰酸根合二环己基甲烷异构体的混合物，（b）冷却熔融的混合物以形成：（1）液相和（2）固相，（c）所述液相本身是商业上可行的产品，（d）加热固相并除去已熔化的固相的那部分，和（e）通过加热余下的部分回收未融化的所述固相部分一部分。

23. 发明授权

US4983763A Process for preparing high trans, trans-isomer containing 4,4'-diisocyanato dicyclohexylmethane 失效
标题翻译：制备含有4,4'-二异氰酸酯基二环己基甲烷的高反式异构体的方法
公开(公告)号：US4983763A
公开(公告)日：1991-01-08
申请号：US511155
申请日：1990-04-19
申请人： Stephen D. Seneker , Terry A. Potter , Kenneth L. Dunlap
发明人： Stephen D. Seneker , Terry A. Potter , Kenneth L. Dunlap
IPC分类号： C07C263/20 , C07C265/14 , C08G18/75
CPC分类号： C08G18/758 , C07C263/20
摘要： The present invention is directed to a simple process for preparing a 4,4'-diisocyanato dicyclohexylmethane containing at least 90% by weight of the trans, trans-isomer. More particularly, the process comprises:(a) melting a mixture of 4,4'-diisocyanato dicyclohexylmethane isomers containing at least 30% by weight, and preferably from 45 to 55% by weight, of the trans,trans-isomer,(b) cooling the melted mixture to a temperature of from about 20.degree. to about 25.degree. C. to form;(1) a liquid phase which contains from about 18 to about 25% by weight of the trans,trans-isomer, and(2) a solid phase which contains from about 70 to about 85% by weight of the trans,trans-isomer,(c) removing said liquid phase,(d) dissolving said solid phase in a solvent to form a 4,4'-diisocyanato dicyclohexylmethane-containing solution,(e) allowing said solution to remain at room temperature for a time sufficient to form:(1) a solid phase containing at least 90% by weight, and preferably at least 98% by weight of the trans,trans-isomer, and(2) a liquid phase containing said solvent and a mixture of 4,4'-diisocyanato dicyclohexylmethane isomers containing from 30 to 70% by weight, and preferably from 45 to 55% by weight of the trans,trans-isomer, and(f) removing said solid phase (e)(1).

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