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    • 9. 发明授权
    • Method for modified aminoplast compounds, aminoplasts obtained thereby
and coatings containing the same
    • 修饰氨基塑料化合物的方法,由此获得的氨基塑料和含有它们的涂层
    • US5777048A
    • 1998-07-07
    • US667261
    • 1996-06-20
    • Walter H. OhrbomDonald H. CampbellDonald L. St. Aubin
    • Walter H. OhrbomDonald H. CampbellDonald L. St. Aubin
    • C08G12/40C08G18/80C09D161/20C09D201/00C09D201/02C08F8/30
    • C09D201/025C08G12/40C08G18/8077C09D161/20C09D201/02
    • A method for reducing the molecular weight of aminoplast compounds, the aminoplast compounds obtained thereby, and coating compositions containing said aminoplast compounds are provided. The reduced molecular weight aminoplasts are obtained by reacting (a) an aminoplast compound, having a total number (y) of reactive substituents on the amino nitrogens of the aminoplast, where y=(E.times.M) and E=equivalents per mole of aminoplast and M=total number of moles of aminoplast, wherein the reactive substituents are selected from the group consisting of --NH, alkylol, alkoxy, alkoxyalkyl, and mixtures thereof and(b) at least one carbamate compound selected from the group consisting of unsubstituted and substituted primary carbamate compounds, unsubstituted and substituted secondary carbamate compounds and mixtures thereof, in the presence of primary or secondary alcohols, at temperatures under 150.degree. C., and at pressures ranging between atmospheric pressure and 20 atm pressure, to form a functionalized aminoplast compound, wherein at least one and up to (y-1) of the amino substituents on the aminoplast are substituted with the carbamate functionality.
    • 提供了降低氨基塑料化合物的分子量,由此获得的氨基塑料化合物和含有所述氨基塑料化合物的涂料组合物的方法。 通过使(a)在氨基塑料的氨基氮上具有总数(y)的反应性取代基的氨基塑料化合物,其中y =(ExM)和E =每摩尔氨基塑料的当量和M =氨基塑料的总摩尔数,其中反应性取代基选自-NH,羟烷基,烷氧基,烷氧基烷基及其混合物,和(b)至少一种选自未取代和取代的伯 氨基甲酸酯化合物,未取代和取代的仲氨基甲酸酯化合物及其混合物,在初级醇或仲醇的存在下,在150℃的温度和在大气压和20atm压力之间的压力下形成官能化的氨基塑料化合物,其中 氨基塑料上氨基取代基的至少一个和至多(y-1)被氨基甲酸酯官能团取代。
    • 10. 发明授权
    • Carbamate functional addition polymers and a method for their preparation
    • 氨基甲酸酯官能加成聚合物及其制备方法
    • US07179861B2
    • 2007-02-20
    • US10815327
    • 2004-04-01
    • Donald H. CampbellDonald L. St. AubinWalter H. Ohrbom
    • Donald H. CampbellDonald L. St. AubinWalter H. Ohrbom
    • C08F8/30
    • C09D201/025C08F222/20C08F222/22
    • A carbamate or terminal urea functional vinyl polymer is prepared by reacting a compound having an hydroxyl group and a carbamate group, terminal urea group, or a group that can be converted to a carbamate or terminal urea group, with a cyclic carboxylic acid anhydride group to form an ester bond and a free acid group from the anhydride; and reacting the free acid group with a compound having an epoxide group. The cyclic carboxylic acid anhydride group may be pendant to a vinyl polymer, or one of the compound having an hydroxyl group, a compound having the cyclic carboxylic acid anhydride group, and the compound having an epoxide group may have polymerizable ethylenic unsaturation that is polymerized, optionally with one or more copolymerizable monomers to form a vinyl polymer. When the compound having an hydroxyl group has a group that can be converted to a carbamate or terminal urea group, the group is converted to the carbamate or terminal urea group after step (a). The carbamate or terminal urea functional vinyl polymer may be included in a coating composition. The coating composition may be applied to a substrate and cured to form a cured coating on the substrate.
    • 通过将具有羟基和氨基甲酸酯基的化合物,末端脲基团或可转化为氨基甲酸酯或末端脲基团的化合物与环状羧酸酐基团反应制备氨基甲酸酯或末端脲官能乙烯基聚合物, 从酸酐形成酯键和游离酸基团; 并使游离酸基与具有环氧基的化合物反应。 环状羧酸酐基可以侧链至乙烯基聚合物,或具有羟基的化合物,具有环状羧酸酐基的化合物和具有环氧基的化合物之间可具有可聚合的烯属不饱和基团, 任选地与一种或多种可共聚单体形成乙烯基聚合物。 当具有羟基的化合物具有可以转化为氨基甲酸酯或末端脲基团的基团时,在步骤(a)之后将该基团转化为氨基甲酸酯或末端脲基团。 氨基甲酸酯或末端脲官能的乙烯基聚合物可以包括在涂料组合物中。 涂料组合物可以施加到基底上并固化以在基底上形成固化的涂层。