Ultraviolet-absorbing polymers compositions and filter
Abstract
Abstract THE INVENTION CLAIMS AN ULTRAVIOLET-ABSORBING FILTER LAYER COMPOSITION FORMED FROM AN AQUEOUS SOLUTION OF A HYDROPHILIC COLLOID HAVING DISPERSED THEREIN A HYDROPHOBIC COPOLYMER OBTAINED BY EMULSION POLYMERIZATION OF AT LEAST ONE A,B-ETHYLENICALLY UNSATURATED MONOMER AND OF AN ULTRAVIOLET-ABSORBING, SOLID, WATER-INSOLUBLE MONOMER OF THE FORMULA: R-CH=C(-R'')-CO-A-Z WHEREIN Z IS H OR Z'', WITH Z'' REPRESENTING A SUBSTITUTED BENZOTRIAZOLE GROUP OF THE FORMULA: 2-(2-HO,Y,Y''-PHENYL),X,X''-2H-BENZOTRIAZOLE R IS H, -CH3, -CN, -COOH OR -COAZ'' R'' IS H, -CH3, OR -CH2COAZ'' A IS -O- OR -NH OR A AND R FORM TOGETHER A CYCLIC IMIDE GROUP, OR A AND R'' FORM TOGETHER A CYCLIC IMIDE GROUP, A BEING BOUND TO THE SUBSTITUTED THIAZOLE GROUP OF Z'' VIA THE CARBOCYCLIC PHENYL GROUP OR VIA THE CARBOCYCLIC BENZO GROUP. THE ULTRAVIOLET-ABSORBING FILTER LAYER COMPOSITION MAY BE USED FOR THE PROTECTION OF LIGHT-SENSITIVE PHOTOGRAPHIC MATERIALS AGAINST ULTRAVIOLET LIGHT AND FOR THE PRODUCTION OF ULTRAVIOLET FILTERS AND FILTER LAYERS.
Inventors
- 👤 M Mannens
- 👤 J Jaeken
- 👤 W Janssens
- 👤 J Priem
Bibliographic Details
Claims Analysis
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