Surface disinfectant with residual biocidal property

Abstract

A disinfectant formulation is provided imparting a residual biocidal property. The disinfectant formulation is used to treat a surface to impart a film having a capacity to quickly kill bacteria and other germs for at least 24 hours after deposit of the film on a treated surface. The disinfectant formulation comprises a polymer binder, wherein the polymer binder is an oxazoline homopolymer or an extended or a modified polymer based on an oxazoline homopolymer, and a biocidal compound. The disinfectant formulation further comprises a carrier. An article having the disinfectant formulation is provided as well as methods of making, using and applying the disinfectant formulation.

What is claimed is: 
     
         1 . A disinfectant formulation imparting a residual biocidal property, the disinfectant formulation comprising:
 a polymer binder, wherein the polymer binder is an oxazoline homopolymer or an extended or a modified polymer based on an oxazoline homopolymer,   a biocidal compound, and   a carrier.   
     
     
         2 . The disinfectant formulation according to  claim 1 , wherein the oxazoline homopolymer has a structure of: 
       
         
           
           
               
               
           
         
         wherein 
         R 1  is a hydrogen, alkyl, alkenyl, alkoxy, alkylamino, alkynyl, allyl, amino, anilino, aryl, benzyl, carboxyl, carboxyalkyl, carboxyalkenyl, cyano, glycosyl, halo, hydroxyl, oxazolinium mesylate, oxazolinium tosylate, oxazolinium triflate, silyl oxazolinium, phenolic, polyalkoxy, quaternary ammonium, thiol, or thioether group; 
         R 2  is a hydrogen, alkyl, alkenyl, alkoxy, alkylamino, alkynyl, allyl, amino, anilino, aryl, benzyl, carboxyl, carboxyalkyl, carboxyalkenyl, cyano, glycosyl, halo, hydroxyl, oxazolinium mesylate, oxazolinium tosylate, oxazolinium triflate, silyl oxazolinium, phenolic, polyalkoxy, quaternary ammonium, thiol, or thioether group or a macrocyclic structure; 
         R 3  is a hydrogen, alkyl, alkenyl, alkoxy, aryl, benzyl, hydroxyalkyl, or perfluoroalkyl group; and 
         n is in a range of 1 to 1,000,000. 
       
     
     
         3 . The disinfectant formulation according to  claim 1 , wherein the extended or the modified polymer based on the oxazoline homopolymer has a structure of: 
       
         
           
           
               
               
           
         
         wherein 
         R 1  is a hydrogen, alkyl, alkenyl, alkoxy, alkylamino, alkynyl, allyl, amino, anilino, aryl, benzyl, carboxyl, carboxyalkyl, carboxyalkenyl, cyano, glycosyl, halo, hydroxyl, oxazolinium mesylate, oxazolinium tosylate, oxazolinium triflate, silyl oxazolinium, phenolic, polyalkoxy, quaternary ammonium, thiol, or thioether group; 
         R 3  is a hydrogen, alkyl, alkenyl, alkoxy, aryl, benzyl, hydroxyalkyl, or perfluoroalkyl group; 
         n is in a range of 1 to 1,000,000; 
         B is a monomer repeating unit linked to oxazoline in a coploymer; and 
         m is in a range of 0 to 500,000. 
       
     
     
         4 . The disinfectant formulation according to  claim 3 , wherein B is ethyleneimine having a structure of: 
       
         
           
           
               
               
           
         
         wherein 
         R 1  is a hydrogen, alkyl, alkenyl, alkoxy, alkylamino, alkynyl, allyl, amino, anilino, aryl, benzyl, carboxyl, carboxyalkyl, carboxyalkenyl, cyano, glycosyl, halo, hydroxyl, oxazolinium mesylate, oxazolinium tosylate, oxazolinium triflate, silyl oxazolinium, phenolic, polyalkoxy, quaternary ammonium, thiol, or thioether group; 
         R 2  is a hydrogen, alkyl, alkenyl, alkoxy, alkylamino, alkynyl, allyl, amino, anilino, aryl, benzyl, carboxyl, carboxyalkyl, carboxyalkenyl, cyano, glycosyl, halo, hydroxyl, oxazolinium mesylate, oxazolinium tosylate, oxazolinium triflate, silyl oxazolinium, phenolic, polyalkoxy, quaternary ammonium, thiol, or thioether group or a macrocyclic structure; 
         R 3  is hydrogen, alkyl, alkenyl, alkoxy, aryl, benzyl, hydroxyalkyl, or perfluoroalkyl; 
         R 4  is hydrogen, alkyl, alkenyl, alkoxy, aryl, benzyl, hydroxyalkyl, or perfluoroalkyl; 
         m is in a range of 0 to 500,000; and 
         n is in a range of 1 to 1,000,000. 
       
     
     
         5 . The disinfectant formulation according to  claim 3 , wherein B has a structure of: 
       
         
           
           
               
               
           
         
         wherein 
         R 1  is a hydrogen, alkyl, alkenyl, alkoxy, alkylamino, alkynyl, allyl, amino, anilino, aryl, benzyl, carboxyl, carboxyalkyl, carboxyalkenyl, cyano, glycosyl, halo, hydroxyl, oxazolinium mesylate, oxazolinium tosylate, oxazolinium triflate, silyl oxazolinium, phenolic, polyalkoxy, quaternary ammonium, thiol, or thioether group; 
         R 2  is a hydrogen, alkyl, alkenyl, alkoxy, alkylamino, alkynyl, allyl, amino, anilino, aryl, benzyl, carboxyl, carboxyalkyl, carboxyalkenyl, cyano, glycosyl, halo, hydroxyl, oxazolinium mesylate, oxazolinium tosylate, oxazolinium triflate, silyl oxazolinium, phenolic, polyalkoxy, quaternary ammonium, thiol, or thioether group or a macrocyclic structure; 
         R 3  is hydrogen, alkyl, alkenyl, alkoxy, aryl, benzyl, hydroxyalkyl, or perfluoroalkyl; 
         R 4  is hydrogen, alkyl, alkenyl, alkoxy, aryl, benzyl, hydroxyalkyl, or perfluoroalkyl; 
         R 5  is hydrogen, methyl, ethyl, propyl, or another type of alkyl group; 
         m is in a range of 0 to 500,000; 
         n is in a range of 1 to 1,000,000; and 
         X − , an anion, is a halogen, sulfonate, sulfate, phosphonate, phosphate, carbonate/bicarbonate, hydroxy, or carboxylate. 
       
     
     
         6 . The disinfectant formulation according to  claim 3 , wherein B is a polyethyloxazoline modified with polydiallyldimethylammonium chloride having a structure of: 
       
         
           
           
               
               
           
         
         wherein 
         R 1  is a hydrogen, alkyl, alkenyl, alkoxy, alkylamino, alkynyl, allyl, amino, anilino, aryl, benzyl, carboxyl, carboxyalkyl, carboxyalkenyl, cyano, glycosyl, halo, hydroxyl, oxazolinium mesylate, oxazolinium tosylate, oxazolinium triflate, silyl oxazolinium, phenolic, polyalkoxy, quaternary ammonium, thiol, or thioether group; 
         R 2  is a short chain alkyl group; 
         R 3  is a short chain alkyl group; 
         R 4  is hydrogen, alkyl, alkenyl, alkoxy, aryl, benzyl, hydroxyalkyl, or perfluoroalkyl; 
         m is in a range of 0 to 500,000; 
         n is in a range of 1 to 1,000,000; and 
         X − , an anion, is a halogen, sulfonate, sulfate, phosphonate, phosphate, carbonate, bicarbonate, hydroxy, or carboxylate. 
       
     
     
         7 . The disinfectant formulation according to  claim 3 , wherein B is an olefin selected from the group consisting of diallyldimethylammonium chloride, styrene, methoxystyrene, methoxyethene, or another olefin. 
     
     
         8 . The disinfectant formulation according to  claim 1 , wherein the polymer binder is prepared with a monomer of ethyloxazoline. 
     
     
         9 . The disinfectant formulation according to  claim 8 , wherein ethyloxazoline is copolymerized with a heterocyclic monomer. 
     
     
         10 . The disinfectant formulation according to  claim 1 , wherein the polymer binder employs a pendant oxazoline group on a polymer backbone. 
     
     
         11 . The disinfectant formulation according to  claim 10 , wherein the polymer backbone is an acrylic or a styrene based polymer, or a copolymer containing acrylic or styrene. 
     
     
         12 . The disinfectant formulation according to  claim 1 , wherein the disinfectant formulation is in a form of a liquid. 
     
     
         13 . The disinfectant formulation according to  claim 12 , wherein the polymer binder is present in a range of 0.1% to 20% based on the weight of the disinfectant formulation. 
     
     
         14 . The disinfectant formulation according to  claim 13 , wherein the polymer binder is in a range of 0.1% to 10% based on the weight of the disinfectant formulation. 
     
     
         15 . The disinfectant formulation according to  claim 1 , wherein the biocidal compound is selected from the group consisting of a quaternary ammonium compound, citric acid, sulfamic acid, glycolic acid, lactic acid, lauric acid, and capric acid, silane quaternary salts, triclosan, zinc pyrithione, metal salt, metal oxide, phenol, botanical, halogen, peroxide, heterocyclic antimicrobial, aldehyde, alcohol, and a combination thereof. 
     
     
         16 . The disinfectant formulation according to  claim 15 , wherein the quaternary ammonium compound has a structure of: 
       
         
           
           
               
               
           
         
         wherein 
         R 1  is alkyl, alkoxy, or aryl, either with or without heteroatoms, or saturated or non-saturated; 
         R 2  is alkyl, alkoxy, or aryl, either with or without heteroatoms, or saturated or non-saturated; 
         R 3  is alkyl, alkoxy, or aryl, either with or without heteroatoms, or saturated or non-saturated; 
         R 4  is alkyl, alkoxy, or aryl, either with or without heteroatoms, or saturated or non-saturated; 
         X − , an anion, is halogen, sulfonate, sulfate, phosphonate, phosphate, carbonate, bicarbonate, hydroxy, or carboxylate. 
       
     
     
         17 . The disinfectant formulation according to  claim 15 , wherein the quaternary ammonium compound is selected from the group consisting of n-alkyl dimethyl benzyl ammonium chloride, di-n-octyl dimethyl ammonium chloride, dodecyl dimethyl ammonium chloride, n-alkyl dimethyl benzyl ammonium saccharinate, 3-(trimethoxysilyl) propyldimethyloctadecyl ammonium chloride, and a combination thereof. 
     
     
         18 . The disinfectant formulation according to  claim 15 , wherein the quaternary ammonium compound is present in a composition comprising: N-alkyl dimethyl benzyl ammonium chloride, N-octyl decyl dimethyl ammonium chloride, di-n-decyl dimethyl ammonium chloride, and di-n-dioctyl dimethyl ammonium chloride. 
     
     
         19 . The disinfectant formulation according to  claim 18 , wherein the composition comprises: 40 weight % of N-alkyl dimethyl benzyl ammonium chloride, 30 weight % of N-octyl decyl dimethyl ammonium chloride, 15 weight % of di-n-decyl dimethyl ammonium chloride, and 15 weight % of di-n-dioctyl dimethyl ammonium chloride, wherein the percentage is a weight percentage of individual quaternary ammonium compounds based on the total weight of the composition. 
     
     
         20 . The disinfectant formulation according to  claim 15 , wherein the quaternary ammonium compound is a polymeric version having a structure of: 
       
         
           
           
               
               
           
         
         wherein 
         R 1  is hydrogen, methyl, ethyl, propyl or other carbon alkyl group; 
         R 2  is hydrogen, methyl, ethyl, propyl or other carbon alkyl group; 
         R 3  is methylene, ethylene, propylene or other alkylene linking group; 
         R 4  is methylene, ethylene, propylene or other alkylene linking group; 
         R 5  is hydrogen, methyl, ethyl, propyl or other carbon alkyl group; 
         R 6  is hydrogen, methyl, ethyl, propyl or other carbon alkyl group; and 
         n is in a range of 2 to 10,000. 
       
     
     
         21 . The disinfectant formulation according to  claim 20 , wherein the polymeric version is a cationic polymer. 
     
     
         22 . The disinfectant formulation according to  claim 22 , wherein the cationic polymer is a polyamine derived from dimethylamine and epichlorohydrin. 
     
     
         23 . The disinfectant formulation according to  claim 15 , wherein the quaternary ammonium compound is poly diallyldimethylammonium chloride, polyDADMAC, or a compound comprising a biguanide moiety in the molecule. 
     
     
         24 . The disinfectant formulation according to  claim 12 , wherein the biocidal compound is present in a range of 0.05% to 10% based on the weight of the disinfectant formulation. 
     
     
         25 . The disinfectant formulation according to  claim 1 , wherein the carrier comprises a solvent or a mixture of solvents. 
     
     
         26 . The disinfectant formulation according to  claim 25 , wherein the solvent or mixture of solvents comprise water, a low molecular weight alcohol, alkylene glycol ether, a terpene or terpene derivative, and a combination thereof. 
     
     
         27 . The disinfectant formulation according to  claim 1 , further comprising a corrosion inhibitor. 
     
     
         28 . The disinfectant formulation according to  claim 1 , further comprising a surfactant or a wetting agent. 
     
     
         29 . The disinfectant formulation according to  claim 28 , wherein the surfactant is present in a range of 0.01% to 10%. 
     
     
         30 . A liquid disinfectant formulation imparting a residual biocidal property, the disinfectant formulation comprising:
 0.1% to 20% of a polymer binder, wherein the polymer binder is an oxazoline homopolymer or an extended or a modified polymer based on an oxazoline homopolymer,   0.05% to 2% of a biocidal compound,   0% to 99.9% of water, and   0.01% to 2% of a surfactant.   
     
     
         31 . A liquid disinfectant formulation imparting a residual biocidal property, the disinfectant formulation comprising:
 0.1% to 20% of a polymer binder, wherein the polymer binder is an oxazoline homopolymer or an extended or a modified polymer based on an oxazoline homopolymer,   0.05% to 10% of a biocidal compound,   0% to 99.9% of water,   0.1% to 10% of a non-ionic surfactant, and   1% to 10% glycol ether solvent.   
     
     
         32 . An article treated with the disinfectant formulation according to  claim 1 . 
     
     
         33 . The article according to  claim 1 , wherein the article is in a form of a wipe or other disposable product. 
     
     
         34 . A method of using a disinfectant formulation according to  claim 1 , comprising treating a surface with the disinfectant formulation to impart a film having a capacity to quickly kill bacteria and other germs for at least 24 hours after deposit of the film on the treated surface. 
     
     
         35 . The method according to  claim 34 , wherein treating occurs by an application method selected from the group consisting of spraying, fogging, rolling, brushing, mopping, wiping, and a combination thereof.