Patent ID: 8076390

Claim:
A polymeric matrix composition comprising: at least one structural monomer selected from esters of acrylic acid or substituted acrylic acids, amides of acrylic acid or substituted acrylic acids, styrene, substituted styrenes, acrylonitrile, substituted acrylonitriles, vinyl esters, vinyl chloride, alkenes, dienes, polyvinylic compounds, or polyalkenyl compounds; and at least one ionic monomer comprising a salt, said salt comprising an anionic monomer that is a conjugate base of an acid having a pK a less than about 9 and at least one cationic biocide selected from (a) guanidinium cations of general formula wherein R 1 is selected from alkyl, substituted alkyl, cycloalkyl, substituted cycloalkyl, alkenyl, substituted alkenyl, cycloalkenyl, substituted cycloalkenyl, alkynyl, substituted aryl, heteroaryl and substituted heteroaryl, and R 2 , R 3 , R 4 , R 5 and R 6 are independently selected from hydrogen, alkyl, substituted alkyl, cycloalkyl, substituted cycloalkyl, alkenyl, substituted alkenyl, cycloalkenyl, substituted cycloalkenyl, alkynyl, substituted aryl, heteroaryl and substituted heteroaryl; (b) quaternary ammonium cations of general formula R 1 R 2 R 3 R 4 N + , where R 1 , R 2 , R 3 , and R 4 are independently selected from alkyl, substituted alkyl, cycloalkyl, substituted cycloalkyl, alkenyl, substituted alkenyl, cycloalkenyl, substituted cycloalkenyl, alkynyl, substituted aryl, heteroaryl and substituted heteroaryl; and (c) pyridinium cations selected from N-substituted pyridinium where the N substituent is selected from alkyl, branched alkyl, substituted alkyl, alkenyl, aryl or heteroaryl; N,N′-disubstituted bipyridinium where the N and N′ substituents are independently selected from alkyl, branched alkyl, substituted alkyl, alkenyl, aryl or heteroaryl; N-alkyl-2, 3, 4, or 5- substituted pyridinium compounds where the N substituent is selected from alkyl, branched alkyl, substituted alkyl, alkenyl, aryl or heteroaryl and where the 2, 3, 4 or 5- substituents are independently selected from alkyl, branched alkyl, substituted alkyl, alkenyl, aryl, heteroaryl, hydroxyl, O-alkyl, O-aryl, cyano, nitro, chloro, bromo, formyl, or acetyl, wherein the at least one structural monomer and the anionic monomer are bonded to one another to form the polymeric matrix.