Removable antimicrobial coating compositions and methods of use
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A01N-033/12
A23L-003/3526
A61L-002/232
A61K-009/70
C09D-005/00
C09D-005/14
C09D-005/16
출원번호
US-0710325
(2007-02-23)
등록번호
US-9668476
(2017-06-06)
발명자
/ 주소
Lu, Helen S. M.
Lenges, Christian
Stieglitz, Barry
Leger, Lynn
Hoffman, Christian
Vangorp, Judith J.
Malone, Shaun F.
출원인 / 주소
LANXESS Corporation
인용정보
피인용 횟수 :
0인용 특허 :
30
초록
This invention relates to a method for controlling microorganisms comprising coating a surface with a removable, antimicrobial film-forming composition.
대표청구항▼
1. An antimicrobial composition being removable by application of water thereto having a viscosity ratio between 15 and 12 wherein said viscosity ratio is the ratio of viscosity at a shear rate of 5 s-1 to the viscosity at a shear rate of 190 s−1, the composition comprising: i) 1 to 30 wt. % of a wa
1. An antimicrobial composition being removable by application of water thereto having a viscosity ratio between 15 and 12 wherein said viscosity ratio is the ratio of viscosity at a shear rate of 5 s-1 to the viscosity at a shear rate of 190 s−1, the composition comprising: i) 1 to 30 wt. % of a water soluble or water-dispersible film-forming agent selected from polyvinyl alcohols, polyvinyl alcohol copolymers, polyvinyl pyrrolidones, polyacrylic add, acrylate copolymers, ionic hydrocarbon polymers, polyurethanes or combinations thereof;ii) at least 0.001 wt. % of an antimicrobial agent;iii) at least 50 wt. % of an inert solvent;iv) a surfactant that provides a surface tension of the composition below 40 mN/m; andv) a rheology agent capable of adjusting the viscosity ratio. 2. The composition of claim 1, wherein the surface tension of the composition is below 35 mN/m. 3. The composition of claim 1, wherein the surfactant is an organosilicone. 4. The composition of claim 1, comprising 0.01 wt. % to 0.2 wt. % of the surfactant. 5. The composition of claim 1, wherein the composition provides a reduction of microorganisms of at least 3-log when applied to a contaminated surface. 6. The composition of claim 1, wherein the composition further comprises one or more: plasticizer, cross-linking agent, colorant, solubilizing agent, rheology modifier, antioxidant pH adjuster, antifoaming agent, lubricant, processing aid, color fastness agent, performance enhancing agent, or enzyme. 7. The composition of claim 1, wherein the composition is removable from a surface by applying the water at a temperature of about 15° C. to about 100° c. 8. The composition of claim 1, wherein the water soluble or water-dispersible film-forming agent is a polyvinyl alcohol or a polyvinyl alcohol copolymer. 9. The composition of claim 8, comprising about 2% to about 15% by weight of the polyvinyl alcohol or the polyvinyl alcohol copolymer. 10. The composition of claim 1, wherein the inert solvent is water. 11. The composition of claim 1, further comprising about 0.001% to about 1% by weight of at least one surfactant. 12. A method for controlling microorganisms at a locus, the method comprising: (a) applying to the locus a liquid coating composition having a degree of shear thinning, the composition comprising: i) 1 to 30 wt. % of a water soluble or water-dispersible film-forming agent selected from polyvinyl alcohols, polyvinyl alcohol copolymers, polyvinyl pyrrolidones, polyacrylic acid, acrylate copolymers, ionic hydrocarbon polymers, polyurethanes, or combinations thereof;ii) at least 0.001 wt. % of an antimicrobial agent;iii) at least 50 wt. % of an inert solvent;iv) a surfactant that provides a surface tension of the composition below 40 mN/m;v) a rheology agent capable of adjusting the viscosity ratio;wherein the composition has a viscosity ratio between 1.5 and 50 in which the viscosity ratio is the ratio of viscosity at a shear rate of 5 s-1 to the viscosity at a shear rate of 190 s-1; and(b) removing the coating composition from the locus by applying water to the locus. 13. The method of claim 12, wherein the water is applied at a temperature of about 15° C. to about 100° C. 14. The method of claim 12, wherein the composition is applied in a thickness of about 0.3 to about 300 microns. 15. The method of claim 12, wherein the composition is applied in a thickness of about 1.0 to about 30 microns. 16. The method of claim 12, wherein the composition is applied by spraying, aerosolizing, or pouring. 17. The method of claim 12, wherein the composition provides a reduction of microorganisms of at least 3-log when applied to a contaminated food processing surface. 18. The method of claim 12, wherein the water is applied by spraying onto the locus. 19. The method of claim 12, wherein the water is applied by pressure washing.
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