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    • 7. 发明授权
    • Low basicity hindered amine light stabilizers
    • 低碱度受阻胺光稳定剂
    • US4778837A
    • 1988-10-18
    • US946409
    • 1986-12-24
    • Paul S. WatermanFrank F. Loffelman
    • Paul S. WatermanFrank F. Loffelman
    • C07D211/58C07D401/04C08K5/3435C09D7/12
    • C07D401/04C07D211/58C08K5/3435C09D7/1241
    • A method of stabilizing an acid cured coating formulation against photo and/or thermal degradation without adverse effect on acid cure is disclosed. The method discloses incorporating a stabilizingly effective amount of a hindered amine light stabilizer (HALS) represented by Formula I: ##STR1## wherein R is a saturated or unsaturated, optionally alkyl- or alkenyl-substituted alkylene or cycloalkylene radical having 2-20 C-atoms and R' is selected from the group consisting of:hydrogen;an alkyl radical having 1-20 C-atoms;an alkenyl radical having 3-5 C-atoms;an aralkyl radical having 7-12 C-atoms;--CH.sub.2 --CH.sub.2 --CN;--CH.sub.2 --COO--alkyl;--CH.sub.2 --CH(CH.sub.3)--COO--alkyl; an acyl radical; and--(CH.sub.2 --CH.sub.2 O).sub.n H, wherein n can be 1-10.Also disclosed is an acid cured coating composition stabilized against photo and/or thermal degradation. The composition comprises: a stabilizingly effective amount of HALS represented by Formula I above.
    • 公开了一种稳定酸固化涂层配方免受光和/或热降解而不对酸固化产生不利影响的方法。 该方法公开了一种稳定有效量的由式I表示的受阻胺光稳定剂(HALS):其中R是饱和或不饱和的任选烷基或烯基取代的亚烷基或具有2- 20个C原子,R'选自:氢; 具有1-20个C原子的烷基; 具有3-5个C原子的烯基; 具有7-12个碳原子的芳烷基; -CH2-CH2-CN; -CH2-COO-烷基; -CH 2 -CH(CH 3)-COO-烷基; 酰基; 和 - (CH 2 -CH 2 O)n H,其中n可以是1-10。 还公开了耐光固化和/或热降解的酸固化涂料组合物。 该组合物包含:稳定有效量的由上式I表示的HALS。