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    • 6. 发明申请
    • Coating compositions, their preparation, and coated articles made therefrom
    • 涂料组合物,它们的制备和由其制成的涂覆制品
    • US20050159543A1
    • 2005-07-21
    • US10819524
    • 2004-04-06
    • Ali AcarRainer KoenigerGlen Merfeld
    • Ali AcarRainer KoenigerGlen Merfeld
    • C08K5/00C08L67/03C08G8/02
    • C09D167/03
    • A coating composition comprising components A, B and optionally C, wherein component A comprises at least one carboxy-terminated polyarylate. Component B is an organic species which can react with the terminal carboxy groups of component A, and component C is a catalyst or mixture of catalysts. The carboxy-terminated polyarylates are prepared by a solution polymerization method wherein a stoichiometric excess of a diacid chloride is reacted with a dihydroxy-substituted aromatic compound (e.g. resorcinol) in the presence of an organic base and a limited amount of water to produce an initially formed polyarylate comprising anhydride linkages. The initially formed polyarylate is then subjected to selective hydrolysis of the anhydride linkages to provide a low molecular weight carboxy-terminated polyarylate.
    • 包含组分A,B和任选C的涂料组合物,其中组分A包含至少一种羧基封端的多芳基化合物。 组分B是可与组分A的末端羧基反应的有机物,组分C是催化剂或催化剂的混合物。 羧基封端的多芳基化合物通过溶液聚合法制备,其中化学计量过量的二酰氯与二羟基取代的芳族化合物(例如间苯二酚)在有机碱和有限量的水存在下反应以产生最初的 形成的包含酸酐键的多芳基化合物。 然后对最初形成的多芳基化合物进行酸酐键的选择性水解以提供低分子量羧基封端的多芳基化合物。