GEGEN EINWIRKUNG VON LICHT STABILISIERTE POLYMERE SOWIE NEUE IMIDAZOL-2-CARBONSAEURE-ANILIDE.

摘要

Light-stabilised polymer (I) contains cpd(s). of formula (II) as stabiliser(s) where R1, R2 = Ph or heteroaryl, opt. substd. with 1-12C alkyl or alkoxy, PhO, Hal or CF3, and the other R1 or R2 = H, 1-12C alkyl, 7-9C phenalkyl or COOR5, or -CR1=C2- is a condensed benzene ring, opt. substd. with OH, Hal, 1-12C alkyl or alkoxy, COOR5, COR5, CONHR5, COOH, OCOR5, NHCOR5, SO2R5 or CN; R5 = 1-12C alkyl; or 5-8C cycloalkyl, Ph or 7-10C phenalkyl (opt. 1-4C alkyl-substd.); R3, R4 = H, or one R3 or R4 = 1-4C alkyl or 7-9C phenalkyl; n = 1 or 2. If n = 1, X = Ph, naphthyl, or 5- or 6-membered aromatic heterocycle, opt. condensed with a benzene ring; the residues are opt. substd. with 1-12C alkoxy, OCH2O, OC2H4O, CF3, OH, Hal, SR5, COR5, COOR5, OCOR5, COOH, CN, CONHR5, NHR5, N(R5)2 or NHCOR5; If n = 2, X = C6H4 or C10H6, opt. substd. with 1-12C alkyl or alkoxy or Hal, or C6H4YC6H4, Y = (CH2)m, CO, CO(CH2)pCO, OCO(CH2)pCOO, NHCO(CH2)pCONH, -O-, SO2, OCOC6H4COO or NHCOC6H4CONH; m = 1, 2 or 3; p = 0 or 1-8. Imidazole-2-carboxylic acid anhydrides of formula (III) are claimed. R = C6H4R9 or -CR=CR- = T-C6H3 (condensed); R8 = 1-12C alkyl or alkoxy or alkoxycarbonyl, PhO, 7-9C phenalkyl, CF3, N,N-di(1-6C)alkylamino, 2-12C alkanoyl- or alkanoyloxy-amino, 1-12C alkylcarbonyl, phenalkanoyloxy, PhCOO, PhCO, CN, OCH2O, or OC2H4O; R9 = 1-12C alkyl, 1-4C alkoxy, Cl or H; T = H, 1-4C alkyl or alkoxy, CF3, Ph, 7-9C phenalkyl or Cl; q = 1 or 2.