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    • 7. 发明授权
    • Lightfast colored polymeric coatings and process for making same
    • 耐光色聚合物涂料及其制备方法
    • US5231135A
    • 1993-07-27
    • US619023
    • 1990-11-28
    • Greville MachellRobert L. Mahaffey
    • Greville MachellRobert L. Mahaffey
    • C08F8/00
    • C08F8/00
    • A method of forming a colored polymer coating on a substrate is disclosed which comprises mixing a reactive polymer, a reactive colorant, and a linking agent, and reacting the linking agent with the reactive polymer and reactive colorant under suitable conditions to form the colored polymer coating. The polymer from which the coating is formed has reactive groups which can react with the linking agent. The reactive colorant has the general formula:R-[polymeric constituent-X].sub.nwherein R is an organic dyestuff radical; the polymeric constituent is selected from polyalkylene oxides and copolymers of alkylene oxides in which the alkylene moiety of the polymeric constituent contains 2 or more carbon atoms; n is an integer from 1 to about 6; and X is a reactive moiety. The linking agent has a reactive group capable of reacting with reactive groups in the polymer and a reactive group capable of reacting with the reactive moiety of the reactive colorant. A method of coating a substrate with a lightfast colored polymer finish is also disclosed which comprises forming a colored polymer coating on the substrate in accordance with the method described above and then overcoating the colored polymer coating with a second polymer layer containing an ultraviolet absorber. A composition comprising a mixture of the coating polymer, a reactive colorant, and a linking agent is also disclosed.
    • 公开了一种在基材上形成着色聚合物涂层的方法,其包括混合反应性聚合物,活性着色剂和连接剂,并在合适的条件下使交联剂与反应性聚合物和活性着色剂反应以形成着色聚合物涂层 。 形成涂层的聚合物具有可与连接剂反应的反应性基团。 活性着色剂具有以下通式:R- [聚合物成分-X] n,其中R是有机染料基团; 聚合物成分选自聚环氧烷和烯化氧的共聚物,其中聚合物成分的亚烷基部分含有2个或更多个碳原子; n是1至约6的整数; X是反应性部分。 连接剂具有能够与聚合物中的反应性基团反应的反应性基团和能够与活性着色剂的反应性部分反应的反应性基团。 还公开了一种用耐光色的聚合物涂层涂覆基材的方法,其包括根据上述方法在基材上形成着色聚合物涂层,然后用含有紫外线吸收剂的第二聚合物层涂覆着色聚合物涂层。 还公开了包含涂料聚合物,活性着色剂和连接剂的混合物的组合物。