Disinfectant composition having residual biocidal properties
View Patent ↗A composition having biocidal properties is disclosed. The composition includes a biocide in combination with a film forming component. In one embodiment, for instance, the biocide comprises an amine while the film forming component comprises one or more polyvinyl alcohol polymers. The disinfectant composition forms a film on a surface that is abrasion resistant and will provide biocidal activity over an extended period of time, while being completely water dispersible.
1. A composition for disinfecting surfaces comprising:
a biocide, the biocide comprising a tertiary amine biocide, a chlorhexidine, a biguanide, or mixtures thereof;
a film forming component combined with the biocide, the film forming component comprising a polyvinyl alcohol having a degree of hydrolysis of greater than about 90 mol %, a polyvinyl pyrrolidone, a polyalkylene glycol, or mixtures thereof; and
a liquid carrier.
2. A composition as defined in claim 1 , wherein the biocide comprises the tertiary amine biocide.
3. A composition as defined in claim 2 , wherein tertiary amine comprises a tertiary alkyl amine.
4. A composition as defined in claim 2 , wherein the biocide is N, N-bis(3-aminopropyl) dodecylamine, N-(3-aminopropyl)-N-dodecylpropane-1,3-diamine, N-(3-aminopropyl)-N-decyl-1,3-propanediamine, N-(3-aminopropyl)-N-tetradecyl-1,3-propanediamine, or mixtures thereof.
5. A composition as defined in claim 1 , wherein the biocide is present in the composition in an about from about 0.1% to about 2% by weight.
6. A composition as defined in claim 1 , wherein the film forming component comprises the polyvinyl alcohol.
7. A composition as defined in claim 6 , wherein the polyvinyl alcohol has a degree of hydrolysis of greater than about 95 mol %.
8. A composition as defined in claim 6 , wherein the composition contains a first polyvinyl alcohol and a second polyvinyl alcohol, the first polyvinyl alcohol having a degree of hydrolysis greater than the second polyvinyl alcohol, the first polyvinyl alcohol and the second polyvinyl alcohol both having a degree of hydrolysis of greater than about 90 mol %.
9. A composition as defined in claim 8 , wherein the first polyvinyl alcohol has a degree of hydrolysis of about 98 mol % and the second polyvinyl alcohol has a degree of hydrolysis of from about 95 mol % to about 97 mol %, the first polyvinyl alcohol and the second polyvinyl alcohol being present in the composition at a weight ratio of from about 1:1 to about 4:1.
10. A composition as defined in claim 1 , wherein the film forming component is present in the composition in an amount from about 1% to about 10% by weight.
11. A composition as defined in claim 1 , wherein the liquid carrier comprises water, water being present in the composition in an amount of at least 40% by weight.
12. A composition as defined in claim 1 , wherein the composition further contains an evaporating agent, the evaporating agent having a boiling point of less than about 90° C.
13. A composition as defined in claim 12 , wherein the evaporating agent comprises an alcohol.
14. A composition as defined in claim 12 , wherein the evaporating agent is present in the composition in an amount from about 1% to about 25%.
15. A composition as defined in claim 1 , wherein the film forming component comprises the polyvinyl pyrrolidone.
16. A composition as defined in claim 1 , wherein the composition further contains a chelating agent.
17. A composition as defined in claim 1 , wherein the composition further contains a surfactant.
18. A composition as defined in claim 1 , wherein the biocide comprises the chlorhexidine, the chlorhexidine comprising chlorhexidine digluconate.
19. A composition as defined in claim 1 , wherein the biocide comprises the biguanide, the biguanide comprising a polyhexamethylene biguanide hydrochloride.
20. A composition as defined in claim 1 , wherein the biocide comprises the tertiary amine biocide in combination with a chlorhexidine or a biguanide.
21. A premoistened wiper comprising a liquid absorbent substrate impregnated with the composition as defined in claim 1 .
22. A disinfectant product for disinfecting instruments comprising the composition as defined in claim 1 .
23. A hard surfaces disinfectant comprising the composition as defined in claim 1 .
24. A hand sanitizer comprising the composition as defined in claim 1 .