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    • 11. 发明授权
    • Allophanate group-containing polyisocyanates improved compatibility with
aldimines
    • 含有脲基甲酸酯基团的多异氰酸酯改善了与醛亚胺的相容性
    • US5859163A
    • 1999-01-12
    • US917455
    • 1997-08-22
    • William E. SlackEdward P. SquillerHans Georg Schmelzer
    • William E. SlackEdward P. SquillerHans Georg Schmelzer
    • C08G18/32C08G18/78C08G18/80C09D175/02C08G18/30
    • C08G18/8064C08G18/3256C08G18/7837C08G18/8016C09D175/02
    • The present invention relates to coating compositions containinga) aldimines andb) polyisocyanates whichi) contain 2 to 35% by weight of allophanate groups, based on the weight of the polyisocyanates,ii) have a viscosity of less than 3000 mpa.s at 25.degree. C. when measured at a solids content of 100%,iii) are based on the reaction products of aliphatic polyisocyanates with1) 10 to 90 mole percent of monohydroxy compounds and2) 10 to 90 mole percent of polyhydric alcohols, wherein the mole percentages of 1) and 2) add up to 100, and the percentages are based on the total moles of monohydroxy compounds 1) and polyhydric alcohols 2) andiv) contain less than 10 mole percent of urethane groups, based on the total moles of urethane groups obtained from monohydroxy compounds 1) and polyhydric alcohols 2).The present invention also relates to these polyisocyanates containing allophanate groups and to polyisocyanate mixtures containing these polyisocyanates and polyisocyanate adducts containing isocyanurate, uretdione, biuret and/or urethane groups.
    • 本发明涉及包含a)醛亚胺和b)多异氰酸酯的涂料组合物,i)含有2至35重量%的脲基甲酸酯基团,基于多异氰酸酯的重量,ii)具有小于3000mpa.s的粘度 25℃,固体含量为100%时,iii)基于脂族多异氰酸酯与1)10至90摩尔%的单羟基化合物和2)10至90摩尔%的多元醇的反应产物,其中 摩尔百分比为1)和2)加起来为100,百分比基于单羟基化合物1)和多元醇的总摩尔数2)和iv)含有少于10摩尔%的氨基甲酸酯基,基于总摩尔数 由单羟基化合物1)和多元醇2)得到的氨基甲酸酯基团。 本发明还涉及含有脲基甲酸酯基团的这些多异氰酸酯和含有这些多异氰酸酯和含有异氰脲酸酯,脲二酮,缩二脲和/或氨基甲酸酯基团的多异氰酸酯加合物的多异氰酸酯混合物。
    • 15. 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。