Biocidal polystyrene hydantoin particles

   
   

Method for preparing biocidal halogenated polystyrene hydantoins. The biocidal polymers poly-1,3-dichloro-5-methyl-5-(4'-vinylphenyl)hydantoin, poly-1,3-dibromo-5-methyl-5-(4'-vinylphenyl)hydantoin, and their monohalogenated alkali metal salts and protonated derivatives have been prepared as porous beads by use of highly crosslinked polystyrene beads as starting materials. The porous beads will be useful in water and air disinfection applications when employed in cartridge filters and carafes (for water), as well as for controlling noxious odor when mixed with absorbent materials in items such as disposable diapers, incontinence pads, bandages, sanitary napkins, pantiliners, mattress covers, shoe inserts, sponges, animal litter, carpets, fabrics, and air filters or the like.

Metodo per la preparazione delle idantoine alogenate biocidali del polistirolo. I polimeri biocidali poly-1,3-dichloro-5-methyl-5-(4'-vinylphenyl)hydantoin, poly-1,3-dibromo-5-methyl-5-(4'-vinylphenyl)hydantoin e loro monohalogenated i sali alcalini-metallici e protonated i derivati sono stati preparati come branelli porosi per mezzo dei branelli altamente uniti con legami atomici incrociati del polistirolo come prodotti base. I branelli porosi saranno utili nelle applicazioni di disinfezione dell'aria e dell'acqua una volta impiegati in filtri e carafes della cartuccia (per acqua), così come per il controllo dell'odore nocivo una volta mescolati con i materiali assorbenti negli articoli quali i diapers a gettare, rilievi di incontinence, fasciature, tovaglioli sanitarii, pantiliners, le coperture del materasso, inserti del pattino, spugne, disordine animale, moquette, tessuti e filtri dell'aria e simili.

 
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