| 摘要 |
946,728. Leather. CIBA Ltd. Sept. 14, 1960 [Sept. 23, 1959 ; Dec. 8, 1959], No. 19727/62. Divided out of 941,990. Heading C6C. [Also in Divisions A2, A5, B5, C2, C3, C4, C5, Dl, D2 and G2] Materials are protected against ultra-violet rays by means of compounds of formula where A1 is a branched alkyl group having at least 4 carbon atoms, A2 is an unbranched alkyl group, and n is I or 2 (see Division C2). Materials specified include fibrous materials such as skins and hides and leathers made from the latter and products made therefrom.
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