Process for coating substrates with polyisocyanates and polyhydroxy
polyacrylates
    46.
    发明授权
    Process for coating substrates with polyisocyanates and polyhydroxy polyacrylates 失效
    用多异氰酸酯和多羟基聚丙烯酸酯涂覆基材的方法

    公开(公告)号:US4442145A

    公开(公告)日:1984-04-10

    申请号:US393224

    申请日:1982-06-28

    CPC classification number: C08G18/6229

    Abstract: The invention relates to a process for the production of coatings using a coating composition containing as binder optionally blocked lacquer-grade polyisocyanates in combination with polyhydroxy polyacrylate resins based on copolymers of certain hydroxy alkyl(meth)acrylates, methyl methacrylate, 2-ethylhexyl acrylate and, optionally, (meth)acrylic acid, wherein the molecular weight is in the range from about 30,000 to 80,000, the content of low molecular weight constituents having molecular weights of at most about 3000 amounts to between 3 and 15% by weight, the molecular heterogeneity factor amounts to between about 1.0 and 10.0, and the parameter for the chemical heterogeneity of the copolymer is between 0 and about 0.06.

    Abstract translation: 本发明涉及一种使用涂料组合物制备涂料的方法,所述涂料组合物含有作为粘合剂的任选封闭的漆级多异氰酸酯与多羟基聚丙烯酸酯树脂的组合,所述聚羟基聚异氰酸酯基于某些羟基烷基(甲基)丙烯酸酯,甲基丙烯酸甲酯,丙烯酸2-乙基己酯和 ,任选地,(甲基)丙烯酸,其中分子量在约30,000至80,000的范围内,分子量至多约3000的低分子量组分的含量为3至15重量%,分子量 异质因子在约1.0和10.0之间,共聚物的化学异质性参数在0和约0.06之间。

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