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    • 7. 发明授权
    • Freeze stable allophanate-modified toluene diisocyanate trimers
    • 冷冻稳定的脲基甲酸酯改性甲苯二异氰酸酯三聚体
    • US6063891A
    • 2000-05-16
    • US375842
    • 1999-08-16
    • William E. SlackHersel T. Kemp, II
    • William E. SlackHersel T. Kemp, II
    • C08G18/09C08G18/16C08G18/76C08G18/78C08G18/10
    • C08G18/7837C08G18/092C08G18/161C08G18/7621
    • This invention relates to a novel freeze-stable allophanate modified toluene diisocyanurates, and to a process for producing these freeze-stable allophanate-modified toluene diisocyanurates which requires a catalyst which is capable of forming both trimer and allophanate groups, or a catalyst system comprising at least one catalyst capable of forming trimer groups and at least one catalyst capable of forming allophanate groups. This invention also relates to novel freeze-stable blends of the allophanate-modified toluene diisocyanurates with di- and/or polyisocyanates of the diphenylmethane series; and to freeze-stable urethane prepolymers of the allophanate-modified toluene diisocyanurates, or the blends of these with an isocyanate of the diphenylmethane series.
    • 本发明涉及一种新型的冷冻稳定的脲基甲酸酯改性的甲苯二异氰脲酸酯,以及制备这种冷冻稳定的脲基甲酸酯改性的甲苯二异氰酸酯的方法,其需要能够形成三聚体和脲基甲酸酯基团的催化剂,或者包含 能够形成三聚体基团的至少一种催化剂和能够形成脲基甲酸酯基团的至少一种催化剂。 本发明还涉及脲基甲酸酯改性的甲苯二异氰脲酸酯与二苯基甲烷系列的二 - 和/或多异氰酸酯的新型冷冻稳定共混物; 以及脲基甲酸酯改性的甲苯二异氰脲酸酯的冷冻稳定的氨基甲酸酯预聚物,或它们与二苯基甲烷系列的异氰酸酯的共混物。
    • 10. 发明授权
    • Low surface energy polyisocyanates and their use in one- or
two-component coating compositions
    • 低表面能多异氰酸酯及其在单组分或双组分涂料组合物中的用途
    • US5646227A
    • 1997-07-08
    • US593129
    • 1996-02-01
    • William E. SlackEdward P. SquillerPhilip E. Yeske
    • William E. SlackEdward P. SquillerPhilip E. Yeske
    • C08G18/70C08G18/61C08G18/77C08G18/78C08G18/79C08G18/80C09D175/04C08G77/04
    • C08G18/61C08G18/7837C08G18/791C08G18/8054
    • The present invention is directed to a polyisocyanate mixturei) having an NCO content of 5 to 35% by weight and prepared from an organic diisocyanate,ii) containing up to 25% by weight of isocyanurate groups (calculated as N.sub.3, C.sub.3, O.sub.3, MW 126),iii) containing allophanate groups in an amount such that there are more equivalents of allophanate groups than urethane and urea groups and such that the polyisocyanate mixture remains stable and homogeneous in storage for 3 months at 25.degree. C. andiv) containing siloxane groups (calculated as SiO, MW 44) in an amount of 0.002 to 50% by weight,wherein the preceding percentages are based on the solids content of the polyisocyanate mixture, excluding any unreacted organic diisocyanate, and wherein the siloxane groups are incorporated by reacting an isocyanate group with a compound containing two or more isocyanate-reactive groups directly attached to carbon atoms and one or more siloxane groups. The present invention is also directed to a process for the production of this polyisocyanate mixture and to its use, optionally in blocked form, as an isocyanate component in one- or two-component coating compositions.
    • 本发明涉及NCO含量为5-35重量%并由有机二异氰酸酯制备的多异氰酸酯混合物,ii)含有至多25重量%的异氰脲酸酯基(以N 3,C 3,O 3, MW 126),iii)含有脲基甲酸酯基团,其量使得比氨基甲酸酯和脲基团具有更多当量的脲基甲酸酯基团,并且使得多异氰酸酯混合物在25℃保存3个月并保持稳定和均匀,以及iv)含 硅氧烷基团(以SiO,MW 44计),其量为0.002至50重量%,其中前述百分比是基于多异氰酸酯混合物的固体含量,不包括任何未反应的有机二异氰酸酯,并且其中硅氧烷基团通过 使异氰酸酯基团与含有直接连接到碳原子上的两个或多个异氰酸酯反应性基团和一个或多个硅氧烷基团的化合物反应。 本发明还涉及在单组分或双组分涂料组合物中制备该多异氰酸酯混合物及其用途,任选为封闭形式的异氰酸酯组分的方法。