| 摘要 |
1,186,777. Coated surfaces. FARBENFABRIKEN BAYER A.G. 31 May, 1967 [15 June, 1966], No. 25088/67. Heading B2K. [Also in Divisions C2, C3 and D2] A protective coating composition such as a film or foil comprises an ultraviolet light absorber of the formula: wherein R, is hydrogen or a C 1-4 alkyl or alkoxy radical or halogen, R 2 is hydrogen or a C 1-4 alkyl radical, R 3 to R 8 represent hydrogen or C 1-4 alkyl radicals or R 4 and R 5 may together form a 5- or 6-membered carbocyclic ring, n is 0 or 1, m is 1 to 4 and X is -CN, -COOR, -CONHR, or -CONR 2 where R is hydrogen or a C 1-12 alkyl radical which may be polyvalent, in which case the above structure, excluding the radical X, is repeated in accordance with the valency of X. In specific examples: (3) glass is coated with a stabilized lacquer comprising collodion wool dissolved in alcohol, acetone, ethylene glycol and butanol and containing dibutyl- and butylbenzylphthalate as plasticizers, (8) a glass plate is coated with a stabilised lacquer comprising cellulose acetate, acetic acid, toluene, methyl glycol acetate, ethyl acetate, methyl acetate, methanol, diacetone alcohol and dimethyl glycol phthalate, (14) wood is coated with a stabilised film comprising a hydroxyl-group containing polyester of phthalic acid/adipic acid with a diol and a triol, ethyl glycol acetate, butyl acetate and a toluene solution of an aliphatic and/or aromatic polyisocyanate added shortly before processing. |
