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    • 4. 发明授权
    • Coating compositions containing alkoxysilanes
    • 含有烷氧基硅烷的涂料组合物
    • US06281322B1
    • 2001-08-28
    • US09451539
    • 1999-12-01
    • Stefan GrothReinhard HalpaapMarkus MechtelLutz SchmalstiegPhilip E. Yeske
    • Stefan GrothReinhard HalpaapMarkus MechtelLutz SchmalstiegPhilip E. Yeske
    • C08G7726
    • C08G18/792C08G18/282C08G18/289C08G18/758C09D175/04Y10T428/31551Y10T428/31663
    • The present invention relates to coating compositions containing 40 to 100% by weight, based on resin solids, of an alkoxysilyl-functional polyisocyanate polyurea which is reaction product of A) a polyisocyanate component having an average functionality of 2.5 to 5.5, an NCO content of 11.0 to 20.0% by weight and a monomeric diisocyanate content of less than 10% by weight, and containing at least 50% by weight of a polyisocyanate prepared from 4,4′-diisocyanatodicyclohexyl-methane with B) at least 0.7 equivalents, based on the equivalents of isocyanate groups, of an aminosilane corresponding to formula (I) (RO)nY(3−n)Si—CH2CH2CH2—NHZ  (I),  wherein R represents methyl or ethyl, Y represents methyl, Z represents H, a C1-C12 alkyl or CH2CH2CH2—Si(OR)nY3−n, and n is 1, 2 or 3, and C) optionally other isocyanate-reactive compounds. The present invention also relates the hydrolyzates/condensates that are prepared by adding water or an aqueous solution of a catalyst to the coating compositions according to the invention.
    • 本发明涉及基于树脂固体含有40-100重量%的烷氧基甲硅烷基官能多异氰酸酯聚脲的涂料组合物,其是A)平均官能度为2.5至5.5的多异氰酸酯组分,NCO含量为11.0 至20.0重量%,并且单体二异氰酸酯含量小于10重量%,并且含有至少50重量%的由4,4'-二异氰酸根合二环己基甲烷制备的聚异氰酸酯与B)至少0.7当量,基于当量 的异氰酸酯基,对应于式(I)的氨基硅烷,其中R表示甲基或乙基,Y表示甲基,Z表示H,C1-C12烷基或CH2CH2CH2-Si(OR)nY3-n,n为1,2或3 ,和C)任选其它异氰酸酯反应性化合物。 本发明还涉及通过将水或催化剂的水溶液加入到根据本发明的涂料组合物中制备的水解产物/缩合物。