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    • 4. 发明授权
    • Hydroxy-functional prepolymers containing hydantoin group precursors and
their use in coating compositions
    • 含有乙内酰脲基前体的羟基官能预聚物及其在涂料组合物中的应用
    • US5596044A
    • 1997-01-21
    • US443502
    • 1995-05-18
    • Lyuba K. GindinDouglas A. WicksPhilip E. YeskeE. Haakan Jonsson
    • Lyuba K. GindinDouglas A. WicksPhilip E. YeskeE. Haakan Jonsson
    • C07C275/16C07D233/54C08G18/32C08G18/38C08G18/42C08G18/80C08G18/83C08G33/02
    • C08G18/3821C08G18/3829
    • The present invention relates to hydroxy-functional prepolymers containing urea groups and corresponding to the formula ##STR1## wherein R represents the residue obtained by removing the isocyanate groups from an organic monomeric diisocyanate, a polyisocyanate adduct or an NCO prepolymer containing hydantoin groups or hydantoin group precursors, R.sub.1 and R.sub.2 may be identical or different and represent organic groups which are inert towards isocyanate groups at a temperature of 100.degree. C. or less, R.sub.3 and R.sub.4 may be identical or different and represent hydrogen or organic groups which are inert towards isocyanate groups at a temperature of 100.degree. C. or less, R.sub.5 represents the hydrocarbon radical obtained by removing the amino and hydroxyl groups from an amino alcohol, n has a value of 1 to 3 and m has a value of 2 to 6.The present invention is also directed to compositions suitable for the production of coatings, adhesives or elastomers containing these polyhydantoin prepolymers in combination with optionally blocked polyisocyanates or aminoplast resins.
    • 本发明涉及含脲基团并且相应于式(I)的羟基官能预聚物,其中R代表通过从有机单体二异氰酸酯中除去异氰酸酯基团,多异氰酸酯加合物或含有乙内酰脲基团的NCO预聚物而获得的残基 或乙内酰脲基前体,R1和R2可以相同或不同,表示在100℃或更低的温度下对异氰酸酯基团呈惰性的有机基团,R 3和R 4可以相同或不同,表示氢或有机基团, 在100℃或更低的温度下对异氰酸酯基呈惰性,R5表示通过从氨基醇除去氨基和羟基而获得的烃基,n的值为1至3,m的值为2至6 本发明还涉及适用于在com中生产含有这些聚乙内酰脲预聚物的涂料,粘合剂或弹性体的组合物 与任选封闭的多异氰酸酯或氨基塑料树脂的结合。