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Photographic emulsions containing fluorine substituted ethylene polymers as delustering agents

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1. A PROCESS OF DELUSTERING WATER-PERMEABLE, ORGANIC, PROTECTIVE COLLOID LAYERS WHICH COMPRISES ADMIXING AN AQUEOUS SOLUTION OF WATER-PERMEABLE, ORGANIC, PROTECTIVE COLLOID WITH AN AQUEOUS DISPERSION OF FINELY DIVIDED PARTICLES OF AN ETHYLENIC ADDITION POLYMER AT LEAST 65% BY WEIGHT OF A POLYMER UNITS BEING FLUORINE-SUBSTITUTED ETHYLENE UNITS CONTAINING 3 TO 4 FLUORINE ATOMS, SAID PARTICLES HAVING SIZES WITHIN THE RANGE OF 0.05 TO 25.0 MICRONS, AND COATING THE RESULTING DISPERSION ONTO A SHEET SUPPORT.
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