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    • 17. 发明授权
    • Prepolymers based on di- or polyisocyanates and formamide-terminated low molecular weight compounds, processes for preparing the same and uses thereof
    • 基于二异氰酸酯或多异氰酸酯和甲酰胺封端的低分子量化合物的预聚物,其制备方法及其应用
    • US08729210B2
    • 2014-05-20
    • US12837536
    • 2010-07-16
    • Harald BlumEvelyn PeifferMarc Leimenstoll
    • Harald BlumEvelyn PeifferMarc Leimenstoll
    • C08G18/10
    • C08G18/3825C08G18/10C08G18/5039C09D175/04C09J175/04
    • Prepolymers, which are accessible from formamides of low molecular weight di- or triamines (formamide-terminated low molecular weight compounds) and di- or polyisocyanates, of the general formula (II): X—[—N(CHO)—CO—NH—R1—NCO]n  (II) wherein X represents a linear or branched aliphatic, cycloaliphatic, heterocyclic and/or aromatic structural unit having 2 to 40 carbon atoms, and which is optionally further substituted and/or optionally comprises one or more heteroatoms, wherein R1 represents an organic radical which may optionally contain one or more heteroatoms and which may further contain one or more additional free isocyanate groups and/or one or more urethane, biuret, carbodiimide, isocyanurate, allophanate, iminooxadiazinedione and/or uretdione structural units, and wherein n≧2; processes for making the same; compositions containing the same; and uses thereof.
    • 通式(II)的低分子量二 - 或三胺(甲酰胺封端的低分子量化合物)和二异氰酸酯或多异氰酸酯的甲酰胺可以得到的预聚物:X - [ - N(CHO)-CO-NH -R1-NCO] n(II)其中X表示具有2至40个碳原子的直链或支链脂族,脂环族,杂环和/或芳族结构单元,并且其任选进一步被取代和/或任选地包含一个或多个杂原子, 其中R1表示可以任选地含有一个或多个杂原子并且还可以含有一个或多个另外的游离异氰酸酯基团和/或一个或多个氨基甲酸酯,缩二脲,碳二亚胺,异氰脲酸酯,脲基甲酸酯,亚氨基恶二嗪二酮和/或脲二酮结构单元的有机基团, 并且其中n≥2; 制作相同的过程; 含有它们的组合物; 及其用途。