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    • 7. 发明申请
    • HYDROPHILIC POLYASPARTIC ESTERS
    • 水溶性聚酯酯
    • US20160060380A1
    • 2016-03-03
    • US14836144
    • 2015-08-26
    • Bayer MaterialScience AG
    • Hans-Josef LaasMichael GrahlOlaf FleckHans-Ulrich Meyer-WesthuesMichèl La Faille
    • C08G18/34C09D175/02C08G18/77
    • C09D175/02C07C229/24C07C229/28C07C2601/08C07C2601/14C08G18/222C08G18/283C08G18/3821C08G18/73C08G18/755C08G18/7837
    • Disclosed are polyaspartic esters obtainable by reaction of at least one polyamine component A), comprising an amine compound of the formula (I), where X is a saturated or unsaturated, linear or branched, aliphatic or cycloaliphatic or aromatic organic radical which is substituted or unsubstituted and/or has heteroatoms in the chain, Y is a secondary amino group bonded to two carbon atoms, R1 and R2 independently of one another are saturated or unsaturated, linear or branched, aliphatic or cycloaliphatic or aromatic organic radicals having 1 to 18 carbon atoms, and are substituted or unsubstituted and/or have heteroatoms in the chain, and n is a natural number from 1 to 4, with at least one polyisocyanate component B), comprising a polyisocyanate which contains at least one chemically bonded, non-ionic, hydrophilic group, characterized in that the ratio of the number of secondary amino groups Y to the number of isocyanate groups in the polyisocyanate is from 250:1 to 3:1. Further disclosed is a method for producing a coating composition, a 2-component system, the use thereof for producing a coating on a substrate, and the substrates coated accordingly.
    • 公开了通过至少一种多胺组分A)的反应获得的聚天冬氨酸酯,其包含式(I)的胺化合物,其中X是饱和或不饱和的直链或支链的脂族或脂环族或芳族有机基团,其被取代或 未取代的和/或在链中具有杂原子,Y是与两个碳原子键合的仲氨基,R 1和R 2彼此独立地是饱和或不饱和的直链或支链的具有1至18个碳原子的脂族或脂环族或芳族有机基团 原子,并且是取代或未取代的和/或在链中具有杂原子,n是1至4的天然数,与至少一种多异氰酸酯组分B),其包含含有至少一个化学键合的非离子的多异氰酸酯 亲水基团,其特征在于,多异氰酸酯中的仲氨基数Y与异氰酸酯基的数目的比例为250:1至3:1。 进一步公开了一种制备涂料组合物,2-组分体系,其用于在基材上制备涂层的用途的方法,以及相应地涂布的基材。