Process for stabilizing moldings of high molecular weight thermo-plastic polycarbonates
    1.
    发明授权
    Process for stabilizing moldings of high molecular weight thermo-plastic polycarbonates 失效
    稳定高分子量热塑性聚碳酸酯模塑品的工艺

    公开(公告)号:US3892889A

    公开(公告)日:1975-07-01

    申请号:US33665773

    申请日:1973-02-28

    Applicant: BAYER AG

    CPC classification number: C08J7/065 B01D53/26 C08J2369/00

    Abstract: Articles of high molecular weight thermoplastic polycarbonates having high resistance to ultraviolet radiation while retaining good mechanical properties prepared by applying to the surface of the articles a liquid mixture containing 2 - 20 percent by weight of an ultraviolet absorber in a mixture of 10 to 80 parts by weight of one or more aliphatic C1 - C3 halogenohydrocarbons, 20 to 80 parts by weight of one or more lower aliphatic C1 - C4 alcohols, which may be halogen-substituted, and 0 to 25 parts by weight of water. The mixtures are applied to the polycarbonate at room temperature and subsequently dried at 70* - 100*C.

    Abstract translation: 具有高耐紫外线辐射性的高分子量热塑性聚碳酸酯的制品,同时保持良好的机械性能,其通过向制品的表面施加含有2-20重量%的紫外线吸收剂的混合物,混合物含有10至80份 一种或多种脂族C 1 -C 3卤代烃的重量,20至80份重量的一种或多种可被卤素取代的低级脂族C 1 -C 4醇和0至25重量份的水。 将混合物在室温下加到聚碳酸酯上,随后在70-100℃下干燥。

Patent Agency Ranking