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    • 5. 发明授权
    • Water dispersible polyisocyanates
    • 水分散性多异氰酸酯
    • US5200489A
    • 1993-04-06
    • US842866
    • 1992-02-27
    • Patricia B. JacobsTerry A. Potter
    • Patricia B. JacobsTerry A. Potter
    • C08G18/28C08G18/70C08G18/79
    • C08G18/792C08G18/283C08G18/706
    • The present invention is directed to a polyisocyanate composition which is dispersible in water, has an average NCO functionality of 2 to 6 and containsa) a polyisocyanate adduct prepared from 1,6-hexamethylene diisocyanate or a mixture of hexamethylene diisocyanate with up to 70% by weight, based on the weight of the diisocyanates, of another diisocyanate andb) at least 10% by weight, based on the weight of the polyisocyanate adduct, of an emulsifier which is based on the reaction product ofi) a monohydroxy functional polyether wherein the ethylene oxide portion of the polyether has a molecular weight of 200 to 1000 and the polyether has a total molecular weight of 200 to 1500 withii) either a polyisocyanate adduct which corresponds to component a) or another polyisocyanate.The present invention is also directed to a composition which contains this polyisocyanate compositions and an aqueous resin containing isocyanate-reactive groups.
    • 本发明涉及一种可分散在水中的多异氰酸酯组合物,其平均NCO官能度为2-6,并含有a)由1,6-六亚甲基二异氰酸酯制得的多异氰酸酯加合物或六亚甲基二异氰酸酯与高达70% 基于二异氰酸酯的重量,另外的二异氰酸酯和b)基于多异氰酸酯加合物的重量,至少10重量%的基于i)单羟基官能聚醚的反应产物的乳化剂 其中所述聚醚的环氧乙烷部分的分子量为200〜1000,聚醚的总分子量为200〜1500,ii)对应于组分a)的多异氰酸酯加成物或其它多异氰酸酯。 本发明还涉及含有该多异氰酸酯组合物和含有异氰酸酯反应性基团的含水树脂的组合物。
    • 8. 发明授权
    • Process for the production of polyisocyanates containing allophanate and
isocyanurate groups
    • 用于生产含有脲基甲酸酯和异氰脲酸酯基团的多异氰酸酯的方法
    • US5208334A
    • 1993-05-04
    • US895955
    • 1992-06-09
    • Terry A. PotterWilliam E. Slack
    • Terry A. PotterWilliam E. Slack
    • C07D251/34C08G18/02C08G18/78C08G18/79
    • C07D251/34C08G18/022C08G18/7837C08G18/792
    • The present invention is directed to a process for the production of a polyisocyanate composition having an NCO content of 10 to 47% by weight and a viscosity of less than 2,500 mPa.s, wherein the viscosity is determined from a mixture containing less than 1% by weight of the starting organic diisocyanate, and containing isocyanurate and allophanate groups in a molar ratio of monoisocyanurates to monoallophanates of 10:1 to 1:5 bya) catalytically trimerizing a portion of the isocyanate groups of an organic diisocyanate having (cyclo)aliphatically bound isocyanate groupsb) adding 0.01 to 0.5 moles, per mole of organic diisocyanate, of a monoalcohol containing 6 to 9 carbon atoms to the organic diisocyanate prior to or during the trimerization reaction of step a) andc) terminating the trimerization reaction at the desired degree of trimerization by adding a catalyst poison and/or by thermally deactivating the catalyst,wherein said trimerization catalyst is a compound containing aminosilyl groups or a catalyst which is capable of reducing the isocyanate content of a mixture consisting of 1,6-hexamethylene diisocyanate containing less than 10 ppm of carbon dioxide and the trimerization catalyst from 50% to 45% by weight or less within a period of 4 hours at a catalyst concentration of 500 ppm, based on the weight of 1,6-hexamethylene diisocyanate, and a temperature of 80.degree. C.
    • 本发明涉及制备NCO含量为10至47重量%且粘度小于2,500mPa.s的多异氰酸酯组合物的方法,其中粘度由含有小于1% 并且含有异氰脲酸酯和脲基甲酸酯基团,其单异氰尿酸酯与单甲酸酯的摩尔比为10:1至1:5,通过以下步骤:a)将具有(环)脂族的有机二异氰酸酯的一部分异氰酸酯基催化三聚 b)在步骤a)的三聚反应之前或期间,向有机二异氰酸酯加入每摩尔有机二异氰酸酯0.01至0.5摩尔的含有6至9个碳原子的一元醇,并且c)在该步骤a)终止三聚反应 通过添加催化剂毒物和/或通过使催化剂热失活来达到所需的三聚程度,其中所述三聚催化剂是含有氨基 甲硅烷基或催化剂,其能够将含有少于10ppm二氧化碳的1,6-六亚甲基二异氰酸酯和三聚催化剂的混合物的异氰酸酯含量从50%至45%重量或更少的时间内降低 基于1,6-己二异氰酸酯的重量,温度为80℃,催化剂浓度为500ppm 4小时。
    • 9. 发明授权
    • Blocked polyisocyanates for the production of powder coatings with flat
finishes
    • 用于生产具有平整饰面的粉末涂料的封闭多异氰酸酯
    • US5112931A
    • 1992-05-12
    • US754773
    • 1991-09-04
    • Terry A. PotterHugh C. Grubbs
    • Terry A. PotterHugh C. Grubbs
    • C08G18/62C08G18/80
    • C08G18/8061C08G18/6229C08G18/8058C08G18/8074C08G2150/20
    • The present invention is directed to coating compositions comprising a) polyisocyanates having a content of isocyanate groups blocked by blocking agents of about 10 to 35% by weight and containing about 0.5 to 10.0% by weight of structural units corresponding to the formula--CO--NH--NH--CO--and b) polyhydroxy polyacrylates in an amount sufficient to provide an equivalent ratio of blocked isocyanate groups to hydroxyl groups of about 0.5:1.0 to 2.0:1.0.The present invention is also directed to the coatings prepared from these coating compositions.Finally, the present invention is directed to blocked polyisocyanates which have a content of isocyanate groups blocked by blocking agents of about 10 to 35% by weight and about 0.5 to 10.0% by weight (calculated as --CO--NH--NH--CO--, MW 86) of structural units corresponding to the formula--CO--NH--NH--CO--Q--whereinQ represents NH--NH--CO-- or the group R--(CO--NH--NH--CO--).sub.nR is an n+1 valent hydrocarbon radical andn has a value from 1 to 3.
    • 本发明涉及涂料组合物,其包含a)具有由约10至35重量%的封闭剂封闭的异氰酸酯基团含量的多异氰酸酯,并且含有约0.5至10.0重量%的对应于式-CO-NH的结构单元 -NH-CO-和b)多羟基聚丙烯酸酯,其量足以提供约0.5:1.0至2.0:1.0的封端异氰酸酯基与羟基的当量比。 本发明还涉及由这些涂料组合物制备的涂料。 最后,本发明涉及封闭的多异氰酸酯,其具有通过约10至35重量%和约0.5至10.0重量%(以-CO-NH-NH-CO-计算)的封闭剂封闭的异氰酸酯基团的含量, MW 86)对应于式-CO-NH-NH-CO-Q-的结构单元,其中Q表示NH-NH-CO-或基团R-(CO-NH-NH-CO-)n R是n +1价烃基,n为1〜3。