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    • 1. 发明授权
    • Process for the preparation of biuret polyisocyanates, the compounds
obtained by this process and their use
    • 制备缩二脲多异氰酸酯的方法,通过该方法获得的化合物及其用途
    • US4980500A
    • 1990-12-25
    • US281159
    • 1988-12-07
    • Josef PedainManfred SchonfelderManfred Schmidt
    • Josef PedainManfred SchonfelderManfred Schmidt
    • C07C273/18C07C275/62C08G18/10C08G18/42C08G18/77C08G18/78C08G18/79C08G18/80
    • C08G18/8045C08G18/10C08G18/42C08G18/7831C08G18/8016C08G18/8038
    • The present invention is directed to a process for the preparation of urethane-modified biuret polyisocyanates by the reaction of(a) 1,6-diisocyanatohexane with subequivalent quantities of(b) biuretizing agents based on water and/or organic compounds which react with isocyanate groups to form biuret groups,to form biurets followed by removal of the unreacted, excess 1,6-diisocyanatohexane and any volatile components present, characterized in that at any stage before removal of the excess 1,6-diisocyanate,(c) at least one diol containing ester groups and having an average molecular weight of about 350 to 950 is added to the reaction mixture in a quantity of about 1 to 50% by weight, based on the weight of the 1,6-diisocyanatohexane, the diol reacting with part of the isocyanate groups present to form urethane groups.The invention is also directed to the urethane-modified biuret polyisocyanates obtained by this process and their use as polyisocyanate components in two-component polyurethane lacquers.
    • 本发明涉及通过(a)1,6-二异氰酸根合己烷与基于与异氰酸酯反应的水和/或有机化合物的(b)缩二脲化合物的反应制备氨基甲酸酯改性的缩二脲多异氰酸酯的方法 组合形成缩二脲基团,形成缩二脲,然后除去未反应的过量1,6-二异氰酸根合己烷和存在的任何挥发性组分,其特征在于在去除过量的1,6-二异氰酸酯之前的任何阶段,(c)至少 一元醇含有酯基并且平均分子量为约350至950的反应混合物中加入约1至50重量%,基于1,6-二异氰酸根合己烷的重量,二醇与 存在的部分异氰酸酯基团形成氨基甲酸酯基团。 本发明还涉及通过该方法获得的氨基甲酸酯改性的缩二脲多异氰酸酯及其在双组分聚氨酯漆中作为多异氰酸酯组分的用途。
    • 4. 发明授权
    • Cross-linkable polymer resins and use thereof as binders for coating
agents
    • 可交联聚合物树脂及其作为涂布剂的粘合剂的用途
    • US4639499A
    • 1987-01-27
    • US756483
    • 1985-07-18
    • Peter HohleinManfred SchmidtJosef PedainBernd RiberiMichael Sonntag
    • Peter HohleinManfred SchmidtJosef PedainBernd RiberiMichael Sonntag
    • C09D201/06C08F216/00C08F246/00C09D133/04C09D157/04C09D175/00C08F238/00C08F220/04
    • C08F246/00C08F216/00C09D157/04
    • The present invention is directed to cross-linkable, hydroxyl group-containing polymer resins which are obtained by copolymerizing olefinically-unsaturated monomers and are suitable as binder components for lacquers, the polymer resins having a hydroxyl number of about 20 to 400, an average osmometrically-determined molecular weight of about 500 to 30,000 and a molecular inhomogeneity U of about 0.5 to 15, characterized in that they contain about 0.2 to 80% by weight, preferably about 10 to 70% by weight, based on the total weight of the copolymers, of incorporated monomers selected from olefinically- and acetylenically-unsaturated aliphatic diols having 4 carbon atoms, the ether group-containing alkoxylation products thereof with a hydroxyl number of about 50 to 900, the reaction products of these diols with .epsilon.-caprolactone in a mol ratio of diol:-caprolactone of about 1:0.2 to 1:10 and any mixtures of these components.The present invention is also directed to the use of the above polymer resins as binders for coating compositions.
    • 本发明涉及可交联的含羟基的聚合物树脂,其通过使烯属不饱和单体共聚合而获得,并且适合作为漆的粘合剂组分,聚合物树脂的羟值为约20至400,平均渗透压 约500至30,000的测定分子量和约0.5至15的分子不均匀性U,其特征在于它们含有约0.2至80重量%,优选约10至70重量%,基于共聚物的总重量 包含选自具有4个碳原子的烯属和炔属不饱和脂族二醇的单体,其含醚基的烷氧基化产物的羟值为约50至900,这些二醇与ε-己内酯的摩尔比为摩尔 二醇:己内酯的比例为约1:0.2至1:10,以及这些组分的任何混合物。 本发明还涉及上述聚合物树脂作为涂料组合物的粘合剂的用途。