Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – For cleaning a specific substrate or removing a specific...
Reexamination Certificate
2000-07-20
2001-10-23
Delcotto, Gregory (Department: 1751)
Cleaning compositions for solid surfaces, auxiliary compositions
Cleaning compositions or processes of preparing
For cleaning a specific substrate or removing a specific...
C510S191000, C510S423000, C510S427000, C510S433000, C510S504000, C510S505000, C510S384000, C510S391000, C510S466000
Reexamination Certificate
active
06306810
ABSTRACT:
The present invention generally relates to hard surface treatment compositions which impart a cleaning and sanitizing effect, as well as processes for their use.
Cleaning compositions are commercially important products and enjoy a wide field of utility in assisting in the removal of dirt and grime from surfaces, especially those characterized as useful with “hard surfaces”. Hard surfaces are those which are frequently encountered in lavatories such as lavatory fixtures such as toilets, shower stalls, bathtubs, bidets, sinks, etc., as well as in kitchen and food preparation facilities, such as countertops, cabinet and appliance surfaces, as well as walls, floors, etc.
The prior art has suggested many aqueous compositions which are directed to provide a cleaning or disinfecting benefit to such hard surfaces. Certain of these provide both effective cleaning and disinfection of a treated surfaces. These compositions predominantly are aqueous preparations which include one or more detersive surfactants, one or more organic solvents and in minor amounts, conventional additives included enhance the attractiveness of the product, typically fragrances and coloring agents.
While these known-art compositions may provide advantages, there is a continuing need in the art for such hard surface treatment compositions which include reduced amounts of active constituents, and which minimize or eliminate the amounts of organic solvents which need be present in such compositions.
It is yet a further object of the invention to provide a readily pourable and readily pumpable cleaning composition which features the benefits described above.
It is a further object of the invention to provide a process for cleaning or sanitization of hard surfaces, which process comprises the step of: providing the composition as outlined above, and applying an effective amount to a hard surface requiring such treatment. The composition of the invention may also provide some residual sanitizing activity.
These and other objects of the invention shall be more apparent from a reading of he specification and of the claims attached.
According to a first aspect of the invention there is provided a hard surface cleaning and disinfecting composition which comprises (preferably, consisting essentially of) the following constituents:
(a) at least one cationic surfactant compound having germicidal properties;
(b) a fluorosurfactant selected from the group of nonionic fluorosurfactant, cationic fluorosurfactant, and mixtures thereof;
(c) a film-forming, organosilicone quaternary ammonium compound;
(d) optionally, one or more detersive surfactants particularly selected from carboxylate surfactants as well as nonionic, cationic and amphoteric surfactants;
(e) optionally, one or more organic solvents;
(f) a major proportion of water.
The compositions described above may include one or more further conventional optional constituents such as: pH buffering agents, perfumes, perfume carriers, colorants, hydrotropes, germicides, fungicides, anti-oxidants, anti-corrosion agents, and the like.
Preferred compositions according to the invention are largely aqueous, and are readily pourable and pumpable when packaged from a manually operable pump, such as a ‘trigger spray’ dispenser. The preferred compositions of the invention feature good cleaning, disinfection of hard surfaces and little or no buildup of residue on treated hard surfaces.
According to a second aspect of the invention, there is provided a hard surface cleaning and disinfecting composition which comprises (preferably, consisting essentially of) the following constituents:
(a) at least one cationic surfactant compound having germicidal properties;
(b) a fluorosurfactant selected from the group of nonionic fluorosurfactant, cationic fluorosurfactant, and mixtures thereof;
(c) a film-forming, organosilicone quaternary ammonium compound;
(d) one or more detersive surfactants particularly selected from carboxylate surfactants as well as nonionic, cationic and amphoteric surfactants;
(f) a major proportion of water; characterized wherein the compositions are essentially free of (e) one or more organic solvents, such as water soluble alcohols, ethers, and glycol ethers. These compositions may include one or more further conventional optional constituents such as: pH buffering agents, perfumes, perfume carriers, colorants, hydrotropes, germicides, fungicides, anti-oxidants, anti-corrosion agents, and the like.
According to a third aspect of the invention, there is provided a hard surface cleaning and disinfecting composition which comprises (preferably, consists essentially of) the following constituents:
(a) at least one cationic surfactant compound having germicidal properties;
(b) a fluorosurfactant selected from the group of nonionic fluorosurfactant, cationic fluorosurfactant, and mixtures thereof;
(c) a film forming, organosilicone quaternary ammonium compound;
(e) one or more organic solvents;
(f) a major portion of water;
wherein the compositions are essentially free of (d) one or more detersive surfactants particularly selected from carboxylate surfactants, as well as nonionic, cationic, and amphoteric surfactants. These compositions may include one or more further conventional optional constituents such as: pH buffering agents, perfumes, perfume carriers, colorants, hydrotropes, viscosity modifying agents, further germicides, fungicides, anti-oxidants, and anti-corrosion agents, and the like.
In accordance with a fourth aspect of the invention first aspect of the invention there is provided a hard surface cleaning and disinfecting composition which comprises (preferably, consisting essentially of) the following constituents:
(a) at least one cationic surfactant compound having germicidal properties;
(b) fluorosurfactant selected from the group of nonionic fluorosurfactant, cationic fluorosurfactant, and mixtures thereof;
(c) a film-forming, organosilicone quaternary ammonium compound;
(f) a major proportion of water;
wherein the compositions are essentially free of (d) detersive surfactants, particularly carboxylate surfactants as well as nonionic, cationic and amphoteric surfactants, as well as being essentially free of (e) organic solvents.
The compositions described above may include one or more further conventional optional constituents such as: pH buffering agents, perfumes, perfume carriers, colorants, hydrotropes, germicides, fungicides, anti-oxidants, anti-corrosion agents, and the like.
The aqueous compositions taught herein provide surprisingly good cleaning and disinfection of hard surfaces merely with the inclusion of the preferred germicidal constituents and the flurosurfactant, and at the same time provide a surface protective coating due to the inclusion of the film-forming, organosilicone quaternary ammonium compound. These excellent results are obtained without the inclusion of: further organic solvents (in accordance with the second aspect of the invention) or further detersive surfactants (in accordance with the third aspect of the invention), or either of these latter materials (in accordance with the fourth aspect of the invention) It is particularly surprising that excellent cleaning and disinfecting results are obtained in accordance with the fourth aspect of the invention, including embodiments which consist essentially of a major proportion of water, a fluorosurfactant constituent, the film-forming, organosilicone quaternary ammonium compound, and one or more quaternary ammonium compounds as the germicidal constituent.
The compositions described above may include one or more further conventional optional constituents such as: pH buffering agents, perfumes, perfume carriers, colorants, hydrotropes, germicides, fungicides, anti-oxidants, anti-corrosion agents, and the like.
The inventive compositions necessarily include (a) at least one cationic surfactant compound having germicidal properties.
Particularly preferred for use as the (a) at least one cationic surfactant compound having germicidal properties are those which provide a broad antibacteri
Cheung Tak Wai
Mehta Minaxi Hemansu
Smialowicz Dennis Thomas
Delcotto Gregory
Fish & Richardson P.C.
Reckitt Benckiser , Inc.
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