Biocidal particles of methylated polystyrene

C - Chemistry – Metallurgy – 08 – F

Patent

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Details

C08F 212/14 (2006.01) A01N 25/10 (2006.01) A01N 43/50 (2006.01) A01N 43/66 (2006.01) A01N 43/76 (2006.01) C08F 8/32 (2006.01) C08F 212/36 (2006.01)

Patent

CA 2503377

Methylated polystyrene having pendant N-halamine and N-halamine precursor groups. Biocidal particles have been prepared by reacting highly crosslinked methylated polystyrene beads as starting materials with various N-halamine precursor compounds. The resulting polymer beads are halogenated with chlorine or bromine. The porous beads will be useful in disinfection applications, as well as for sanitization and controlling noxious odor when mixed with absorbent materials in items such as disposable diapers, infant swimwear, incontinence pads, bandages, sanitary napkins, pantiliners, mattress covers, shoe inserts, sponges, animal litter, carpets, and fabrics.

L'invention concerne un polystyrène méthylé comportant des groupes précurseurs pendants N-halamine et N-halamine. On a préparé des particules de biocide par réaction de billes de polystyrène méthylé fortement réticulé; en tant que matériau de départ, avec différents composés précurseurs N-halamine. Les billes de polymère résultantes sont halogénées avec du chlore ou du brome. Les billes poreuses sont très utiles dans des applications de désinfection, ainsi que de nettoyage et de maîtrise d'odeurs nuisantes lorsqu'elles sont mélangées avec des matériaux absorbants dans des articles comme des couches jetables, des vêtements de bain d'enfants, des tampons d'incontinence, des bandages, de serviettes hygiéniques, des protège-slips, des couvertures de matelas, des semelles de chaussures, des éponges, des litières animales, des tapis et des tissus.

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