Patent ID: 7226968

Claim:
A composition comprising: (i) an anti-microbial agent comprising a polymeric biguanide, alone or in combination with at least one other microbiologically active component selected from the group consisting of quaternary ammonium compounds, monoquaternary heterocyclic amine salts, urea derivatives, amino compounds, imidazole derivatives, nitrile compounds, tin compounds or complexes, isothiazolin-3-ones, thiazole derivatives, nitro compounds, iodine compounds, aldehyde release agents, thiones, triazine derivatives, oxazolidine and derivatives thereof, furan and derivatives thereof, carboxylic acids and the salts and esters thereof, phenol and derivatives thereof, sulphone derivatives, imides, thiomides, 2-mercapto-pyridine-N-oxide, azole fungicides, strobilurins, amides, carbamates, pyridine derivatives, compounds with active halogen groups, and organometallic compounds; and (ii) a basic co-polymer of the Formula (1): [A] m -[B] n -[D] y q Formula (1) wherein: [A] is of Formula (9), [B] is of Formula (10), and [D] is of Formula (12), [X] is of Formula (11), wherein [A], [B]and [D] may occur in any order; T is an optionally substituted substituent selected from the group consisting of CN, OH, F, Cl, Br, —OR 6 , —C(O)R 6 , —OC(O)R 6 , —C(O)OR 6 , —C(O)NR 7 R 8 and aryl, optionally substituted by —OC(O)R 6 , F, Cl, Br, C 1-6 -alkyl , —CH 2 Cl or —C(O)OR 6 , wherein R 6 is a C 1-10 -alkyl optionally substituted by a ketone, ether, epoxide, silane or ketoester group, and wherein R 7 and R 8 are each independently H, C 1-8 -alkyl or C 3-8 -cycloalkyl optionally substituted by —OH, ketone or alkyl ether groups: L is an optionally substituted linking group represented by a formula selected from the group consisting of Z is an optionally substituted linking group represented by a formula selected from the group consisting of R 1 , R 2 and R 3 are each independently H, optionally substituted C 1-20 -alkyl or optionally substituted C 3-20 -cycloalkyl; R 4 and R 5 are each independently H or C 1-4 alkyl; E is a basic substituent: q is 15 to 1000; m is 0 to 350; n is 1 to 75; y is 1 to 100; s is 0 or 1; p is 3 to 50; and wherein [A] is present in the basic co-polymer in an amount of from 0% to 25% by weight and [B] is present in the basic co-polymer in a range of from 10% to 95% by weight, said amounts being based on the total weight of the basic co-polymer; and provided that at least one of R 4 and R 5 is H and provided that R 1 , R 2 , R 3 , T, L and Z do not contain an acidic group which can protonate E on [D].