SALTS OF DEHYDROACETIC ACID AS A PYRITHIONE STABILIZER IN PLASTICS

The invention provides a method for preventing discoloration of pyrithione-containing materials, in particular plastic materials or other material such as paints, coatings, adhesives or textiles which are exposed to an outdoor environment. The method is likewise suited for preventing discoloration o...

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Bibliographische Detailangaben
Hauptverfasser:	HALL, Larry Kent, KIMLER, Joseph, RAO, Lei
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AGRICULTURE ANIMAL HUSBANDRY BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES, AS HERBICIDES CHEMISTRY COMPOSITIONS BASED THEREON FISHING FORESTRY HUMAN NECESSITIES HUNTING METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PEST REPELLANTS OR ATTRACTANTS PLANT GROWTH REGULATORS PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTSTHEREOF THEIR PREPARATION OR CHEMICAL WORKING-UP TRAPPING USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
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Beschreibung
Zusammenfassung:	The invention provides a method for preventing discoloration of pyrithione-containing materials, in particular plastic materials or other material such as paints, coatings, adhesives or textiles which are exposed to an outdoor environment. The method is likewise suited for preventing discoloration of other pyrithione-containing materials such as personal care compositions like shampoos. A discoloration inhibitor that includes dehydroacetic acid or a salt thereof is added to the pyrithione-containing material. The discoloration is prevented without the addition of a cyclic organic phosphoric acid ester or an organic phosphite. Use of the discoloration inhibitor does not interfere with the antimicrobial effect of the pyrithione.