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    • 8. 发明授权
    • Method of decreasing the UV light degradation of polymers
    • 降低聚合物紫外光降解的方法
    • US07544350B2
    • 2009-06-09
    • US11123925
    • 2005-05-06
    • Craig A. BondaStephen O'RourkeAnna PavlovicUrvil B. Shah
    • Craig A. BondaStephen O'RourkeAnna PavlovicUrvil B. Shah
    • A61K8/18
    • C08K5/103C08K5/315C08L27/06
    • A method of decreasing the UV light degradation of a UV-light degradable polymer comprising adding to said polymer an effective amount of a compound of formula (IX): wherein, R19, R20 and R21 are the same or different and are selected from the group consisting of C1-C30 alkyl, C3-C8 cycloalkyl, substituted alkyl, substituted cycloalkyl, ester, aryl, heteroaryl, heterocycloalkyl, substituted aryl, substituted heteroaryl, substituted heterocycloalkyl, and amino; R17 and R23 are the same or different and are selected from the group consisting of C1-C30 alkyl, C3-C8 cycloalkyl, substituted alkyl, substituted cycloalkyl, ester, aryl, heteroaryl, heterocycloalkyl, substituted aryl, substituted heteroaryl, substituted heterocycloalkyl, cyano, and amino; R18 and R22 are the same or different and are selected from the group consisting of substituted diphenylmethylene, unsubstituted diphenylmethylene, substituted 9H-fluorene, and unsubstituted 9H-fluorene; t and u are each in the range of 1 to 100; s is in the range of 0 to 100; and a, b, c, and d are each in the range of 0 to 4.
    • 一种减少紫外光可降解聚合物的UV光降解的方法,包括向所述聚合物中加入有效量的式(IX)化合物:其中R19,R20和R21相同或不同,并且选自 由C 1 -C 30烷基,C 3 -C 8环烷基,取代的烷基,取代的环烷基,酯,芳基,杂芳基,杂环烷基,取代的芳基,取代的杂芳基,取代的杂环烷基和氨基组成。 R17和R23相同或不同,并且选自C1-C30烷基,C3-C8环烷基,取代的烷基,取代的环烷基,酯,芳基,杂芳基,杂环烷基,取代的芳基,取代的杂芳基,取代的杂环烷基,氰基 ,和氨基; R18和R22相同或不同,选自取代的二苯基亚甲基,未取代的二苯基亚甲基,取代的9H-芴和未取代的9H-芴; t和u各自在1至100的范围内; s在0到100的范围内; a,b,c,d分别为0〜4的范围。