| abstract |
A COLORED COPOLYMER SOLUBLE IN A SOLVENT SELECTED FROM THE GROUP CONSISTING OF WATER, ALCOHOL AND MIXTURES THEREOF CONSISTING ESSENTIALLY OF A FIRST COMONOMER CONTAINING A REACTIVE EPOXY GROUP AND BEING SELECTED FROM THE GROUP CONSISTING OF GLYCIDYL METHACRYLATE, GLYCIDYL ACRYLATE AND ALLYL GLYCIDYL ESTER, A SECOND COMONOMER CONSISTING OF VINYLPYRROLIDONE, THE REMAINING COMONOMER BEING ESSENTIALLY VINYL ACETATE, AND A DYE SELECTED FROM THE GROUP CONSISTING OF AZO, ANTHRAQUINONE AND BENZENE DYES CONTAINING AN EXTRA-NUCLEAR RADICAL HAVING THE FORMULA: -(CH2)P-NH-R WHEREIN R IS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN, -CH3 AND -C2H5 AND P IS 2-6, SAID EXTRA-NUCLEAR RADICAL BEING BONDED TO THE AROMATIC NUCLEUS OF SAID DYE THROUGH A NITROGEN ATOM DIRECTLY ATTACHED TO SAID AROMATRIC NUCLEUS AND SAID DYE BEING BONDED TO SAID REACTIVE EPOXY GROUP THROUGH THE TERMINAL NITROGEN ATOM OF SAID EXTRA-NUCLEAR RADICAL. |