| abstract |
1,246,236. Treating textiles. FARBENFABRIKEN BAYER A.G. 16 March, 1970 [20 March, 1969], No. 12537/70. Heading DIP. [Also in Divisions C2 and C3] Organic materials such as cotton, wood, paper, a cellulose ester and nitrocellulose are made resistant to the effects of U.V. radiation by applying to the organic material an aqueous suspension or solution of a compound of formula wherein R represents a phenyl radical which may carry at least one substituent selected from halogen, alkyl, hydroxy and alkoxy radicals; R' represents a hydrogen atom or an alkyl, aralkyl or aryl radical; R" represents CN or the radical COOR"' wherein R"' represents an alkyl, aralkyl or aryl radical; and n represents an integer from 4 to 20, any of the aforesaid alkyl, aralkyl, aryl or alkoxy radicals being optionally substituted, and subsequently drying the organic material. |