# US 10,441,051 B2 · Cleaning fluid for electrical personal care apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,441,051 B2 - Document ID: US10441051B2 - Status: Granted - Kind: B2 - Application number: 11/911,149 - Filed: 2006-04-11 - Published: 2008-04-24 - Granted: 2019-10-15 - Earliest claimed: 2005-04-14 - Assignees: Koninklijke Philips N.V. - Applicants: Jacob Brinkert; Tatiana Dimitrova; Philippe Leonard Joseph Verheyden; Andre Jozef Maria Nagels - Inventors: Jacob Brinkert; Tatiana Dimitrova; Philippe Leonard Joseph Verheyden; Andre Jozef Maria Nagels - Web page: https://patentgrep.com/patent/US10441051B2 ## CPC - A45D 27/46: Devices specially adapted for cleaning or disinfecting shavers or razors - C11D 1/65: Mixtures of anionic with cationic compounds - C11D 1/83: Mixtures of non-ionic with anionic compounds - C11D 1/86: Mixtures of anionic, cationic, and non-ionic compounds - C11D 3/3418: {Toluene -, xylene -, cumene -, benzene - or naphthalene sulfonates or sulfates} - C11D 11/0094: {Process for making liquid detergent compositions, e.g. slurries, pastes or gels} - B26B 19/38: Details of, or accessories for, hair clippers, or dry shavers, e.g. housings, casings, grips, guards (cutters, cutting heads B26B19/04, B26B19/12, B26B19/14; cleaning or disinfecting devices A45D27/46; drying devices A45D27/48; casings for electric apparatus in general H05K) - C11D 1/22: derived from aromatic compounds - C11D 1/58: Heterocyclic compounds - C11D 1/72: Ethers of polyoxyalkylene glycols - C11D 2111/20: Industrial or commercial equipment, e.g. reactors, tubes or engines - A45D: HAIRDRESSING OR SHAVING EQUIPMENT (wigs, toupees or the like A41G3/00, A41G5/00; hairdressers' chairs A47C1/04; hair cutting appliances, razors B26B); EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING - C11D: DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL - B26B: HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR (for harvesting A01D; for horticulture, for forestry A01G; for butchering or meat treatment A22; for manufactering or repairing footwear A43D; nail clippers or cutters A45D29/02; kitchen equipment A47J; {vegetable slicers, julienne cutters and similar devices and holders therefor, B26D3/28}; for surgical purposes A61B; for metal B23D; cutting by abrasive fluid jets B24C5/02; plier-like tools with cutting edges B25B7/22; pincers B25C11/02; handles for hand implements, in general B25G; guillotine-type cutters B26D; {perforating by non-mechanical means, e.g. by fluid jet, B26F1/26}; for erasing B43L19/00; for textile materials D06H) ## Abstract A fluid aqueous composition for cleaning an electric personal care apparatus including at least one alkyl benzene sulfonate and at least two non-ionic surfactants. The alkyl benzene sulfonate may be sodium alkyl benzene sulfonate. The non-ionic surfactants may be a fatty alcohol polyalkylene glycol ether and a fatty alcohol polyglycol ether. ## Claims ### Claim 1 A system for cleaning debris from a portion of an electric personal care apparatus, the system comprising: a container for submerging the portion of the electric personal care apparatus; and a fluid aqueous composition provided in the container for providing sedimentation of the debris from the submerged portion to the bottom of the container, the fluid aqueous composition comprising: from at least 0.08 wt. % up to 3 wt. % of at least one alkyl benzene sulfonate for enabling sinking of the debris and comprising sodium alkyl benzene sulfonate; from at least 0.002 wt. % up to 3 wt. % of non-ionic surfactants including at least two non-ionic surfactants including at an alkylpyrrolidone and an alcohol-N-polyglycol ether, wherein N represents a number of glycol ether moieties and the alcohol is a monohydric alcohol; and polyethyleneglycol. ### Claim 2 (depends on 1) The system according to claim 1, wherein the fluid aqueous composition further comprises organic solvents selected from ethanol and C1-C3 alcohols. ### Claim 3 (depends on 1) The system according to claim 1, wherein the alkyl benzene sulfonate contains 10 to 14 carbon atoms. ### Claim 4 (depends on 1) The system according to claim 1, wherein the number of glycol ether moieties N is from 3-10 and alkylpyrrolidone is 1-(C6-C18)-2-pyrrolidone. ### Claim 5 (depends on 4) The system according to claim 4, wherein the alcohol moiety of the polyglycol ether is an (iso)decanol moiety. ### Claim 6 (depends on 1) The system according to claim 1, wherein one of the non-ionic surfactants is 1-(C6-C18)-2-pyrrolidone and another one of the non-ionic surfactants is isoalcohol-N-polyglycol ether where N is 5. ### Claim 7 (depends on 1) The system according to claim 1, wherein a concentration of alkyl benzene sulfonate(s) is at least 0.75 wt. %. ### Claim 8 (depends on 1) The system according to claim 1, wherein a concentration of the non-ionic surfactant(s) is in the range of 0.01 wt. % to 0.2 wt. %. ### Claim 9 (depends on 1) The system according to claim 1, wherein the composition further comprises demineralized water, and the water content of the fluid composition is in the range of 90-99 wt. %. ### Claim 10 (depends on 1) The system according to claim 1, wherein a total concentration of the non-ionic surfactants is in a range of 0.01 wt. % and 1 wt. %. ### Claim 11 (depends on 1) The system according to claim 1, wherein the fluid composition is a ready to use composition and a total concentration of the non-ionic surfactants is in the range of 0.01 to 0.15 wt. %. ### Claim 12 (depends on 1) The system according to claim 1, wherein one of the non-ionic surfactants comprises 1-octyl-2-pyrrolidone. ### Claim 13 (depends on 12) The system according to claim 12, wherein the alkyl benzene sulfonate is in the range of 0.4 to 1.0 wt. %, the 1-octyl-2-pyrrolidone is in the range of 0.01 to 0.09 wt. %, and wherein one of the non-ionic surfactants comprises fatty alcohol polyalkylene glycol ether in the range of 0.000085 to 0.05 wt. %. ### Claim 14 (depends on 1) The system according to claim 1, wherein one of the non-ionic surfactants is selected from 1-octyl-2-pyrrolidone, glycerol and citron. ### Claim 15 A method for cleaning an electric apparatus for removing hair debris, the method comprising acts of: providing a container for submerging a hair removing part of the electric personal care apparatus; providing a fluid composition in the container for providing sedimentation of the debris from the submerged portion to the bottom of the container, the fluid composition comprising: up to 98 wt. % of water, from at least 0.08 wt. % up to 3 wt. % of at least one alkyl benzene sulfonate for enabling sinking of the hair debris, from at least 0.002 wt. % up to 3 wt. % of non-ionic surfactants including at least two non-ionic surfactants including at least an alkylpyrrolidone and an alcohol-N-polyglycol ether, wherein N represents a number of glycol ether moieties and the alcohol is a monohydric alcohol, and polyethyleneglycol; allowing hair debris from the hair removing part of the apparatus to release from the removing part; and contacting the hair removing part of the electric apparatus in the container having the fluid composition. ### Claim 16 (depends on 15) The method according to claim 15, wherein the contacting involves immersing the hair removing part in the fluid composition. ### Claim 17 A method for cleaning an electric personal care apparatus for removing hair debris, the method comprising acts of: providing a container for submerging a hair removing part of the electric personal care apparatus; adding a fluid composition in the container for providing sedimentation of the debris from the submerged portion to the bottom of the container, the fluid composition comprising: up to 98 wt. % of demineralized water, from at least 0.08 wt. % up to 3 wt. % of at least one alkyl benzene sulfonate for enabling sinking of debris and comprising sodium alkyl benzene sulfonate, from at least 0.002 wt. % up to 3 wt. % of non-ionic surfactants including at least two non-ionic surfactant(s) including at least an alkylpyrrolidone and an alcohol-N-polyglycol ether, wherein N represents a number of glycol ether moieties and the alcohol is a monohydric alcohol, and polyethyleneglycol; allowing hair debris from the hair removing part of the apparatus to release from the removing part; and contacting the hair removing part of the electric apparatus in the container having the fluid composition. ### Claim 18 A system for cleaning debris from a portion of an electric personal care apparatus, the system comprising: a container for submerging the portion of the electric personal care apparatus; and a fluid aqueous composition provided in the container for providing sedimentation of the debris from the submerged portion to the bottom of the container, the composition is essentially free of organic solvents flammable at about 20° C. and comprising: up to 98 wt. % of water; from at least 0.08 wt. % up to 3 wt. % of at least one alkyl benzene sulfonate for enabling sinking of the debris and comprising sodium alkyl benzene sulfonate; from at least 0.002 wt. % up to 3 wt. % of non-ionic surfactants including an alkylpyrrolidone and a monohydric alcohol ether and 1-(octyl)-2 pyrrolidone; and polyethyleneglycol.