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    • 32. 发明授权
    • Carboxyl-containing polymer(s) with (2-oxo-1,3-dioxolan-4-yl)methyl
groups-containing compound(s)
    • 含有(2-氧代-1,3-二氧戊环-4-基)甲基的化合物的含羧基的聚合物
    • US6090891A
    • 2000-07-18
    • US75639
    • 1998-05-11
    • Isabelle FrischingerJacques-Alain CottingJurgen FinterJacques Fran.cedilla.ois
    • Isabelle FrischingerJacques-Alain CottingJurgen FinterJacques Fran.cedilla.ois
    • C08G59/14C08G63/42C08G67/00C08L33/06C08L63/00C08L67/00C09D133/06C09D163/00C09D167/00C08L33/02C08L67/04C08L69/00
    • C09D167/00C08G59/1405C08L33/064C08L67/00C09D133/064C09D163/00C08L63/00
    • Curable compositions, which comprise the following components:(A) a polymer component consisting of one or more than one of the following components:polymers based on acrylate monomers and/or methacrylate monomers containing free carboxyl groups, and carboxyl-terminated polyesters;(B) a crosslinker for component (A) selected from the group consisting of:(B1) one or more than one compound having a molecular weight of less than 800 and containing at least two (2-oxo-1,3-dioxolan-4-yl)methyl groups per molecule, and(B2) a mixture consisting of one or more than one compound having a molecular weight of less than 800 and containing at least two (2-oxo-1,3-dioxolan-4-yl)methyl groups per molecule, and of one or more than one epoxy resin, at least 60 percent of the total number of (2-oxo-1,3-dioxolan-4-yl)methyl groups and epoxy groups of the mixture being (2-oxo-1,3-dioxolan-4-yl)methyl groups;(C) a catalyst for accelerating the crosslinking reaction between the components (A) and (B), and(D) a solvent for the components (A), (B) and (C);the molar ratio of free carboxyl groups to the total number of (2-oxo-1,3-dioxolan-4-yl)methyl groups and epoxy groups in the composition being from 0.3:1 to 3:1,have particularly good storage stability and are therefore suitable for use in one-component form, for example as coating agents.
    • 可固化组合物,其包含以下组分:(A)由以下组分中的一种或多种组成的聚合物组分:基于丙烯酸酯单体和/或含有游离羧基的甲基丙烯酸酯单体的聚合物和羧基封端的聚酯; (B)组分(A)的交联剂,其选自:(B1)一种或多种分子量小于800的化合物,并且含有至少两个(2-氧代-1,3-二氧戊环 - (B2)由一种或多于一种分子量小于800的化合物组成的混合物,并含有至少两个(2-氧代-1,3-二氧戊环-4-基) )甲基和一种或多于一种环氧树脂,(2-氧代-1,3-二氧戊环-4-基)甲基和环氧基的总数的至少60%为( 2-氧代-1,3-二氧戊环-4-基)甲基; (C)用于促进组分(A)和(B)之间的交联反应的催化剂,和(D)组分(A),(B)和(C)的溶剂; 游离羧基与组合物中(2-氧代-1,3-二氧戊环-4-基)甲基和环氧基总数的摩尔比为0.3:1至3:1具有特别良好的储存稳定性 因此适用于单组分形式,例如作为涂层剂。