Polaroid Corporation

Performance Indicator, LLC

Alan N Schuler

Edward D Kingsley

Charles K Chiklis

Cliff Parker

A luminescent end indicating tape comprising one or more base layers and an adhesive layer is disclosed. The one or more base layers provide support to the adhesive layer, whereas the adhesive layer comprises one or more fluorescent materials that convert at least a portion of incident electromagnetic radiation to a longer output wavelength. The adhesive layer redirects at least a portion of the longer output wavelength to at least an end of the tape, such that the end is illuminated with that of at least a portion of the longer output wavelength upon the tape being exposed to incident electromagnetic radiation. Further disclosed are methods of fabricating and using the luminescent end indicating tape.

Luminescent end indicating tape

A process for preparing polymeric oximes and photographic processing compositions containing polymeric oximes are described. The polymeric oximes are prepared by a process which comprises: introducing into an aqueous polymerization medium a portion of a polymerizable monomer to be polymerized, said polymerizable monomer having the formula ##STR1## wherein R is hydrogen or methyl, R.sup.1 is hydrogen, alkyl of from 1 to 4 carbon atoms, benzyl or phenyl, R.sup.2 is alkyl of from 1 to 4 carbon atoms, benzyl or phenyl, alkylene is a divalent alkylene radical having 1 or 2 carbon atoms, and R.sup.3 is hydrogen, alkyl of from 1 to 4 carbon atoms or phenyl; initiating the emulsion polymerization of said monomer, and while maintaining said polymerization, introducing substantially uniformly over the course of the polymerization, the remaining polymerizable monomer to be polymerized, thereby to provide a polymeric latex of polymeric particles of said polymerizable monomer in a water medium; contacting said polymeric latex with an organic solvent for said latex particles in an amount sufficient to effect swelling of the polymeric particles in said medium; and oximating the swollen polymeric particles by reaction with hydroxylamine salt and an amount of alkalinity sufficient to provide free hydroxylamine for said oximation but insufficient to effect alkali solubilization of the resulting oximated polymeric particles.

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Lexington, MA, United States of America

Alan N Schuler