Cleansing composition containing oligodynamic metal and efficacy enhancing agent

• US 9,771,549 B2
• Filed: 01/06/2015
• Issued: 09/26/2017
• Est. Priority Date: 01/29/2014
• Status: Active Grant

• Current Assignee: Conopco (Unilever PLC)
• Original Assignee: Conopco (Unilever PLC)
• Inventors: Agarkhed, Ajit Manohar, Kumar, Nitish, Paruchuri, Divya
• Primary Examiner(s): Ogden, Jr., Necholus
• Application Number:
  US15/114,102
• Publication Number:
  US 20160362646A1
• Time in Patent Office: 994 Days
• Field of Search: None
• CPC Class Codes: C11D 10/04 based on mixtures of surface-active non-soap compounds and soap
• CPC Class Codes: C11D 10/042 based on anionic surface-active compounds and soap
• CPC Class Codes: C11D 3/1206 free metals, e.g. aluminium grit or flakes
• CPC Class Codes: C11D 3/1213 Oxides or hydroxides, e.g. Al2O3, TiO2, CaO or Ca(OH)2
• CPC Class Codes: C11D 3/33 Amino carboxylic acids
• CPC Class Codes: C11D 3/3753 Polyvinylalcohol; Ethers or esters thereof
• CPC Class Codes: C11D 3/3757 (Co)polymerised carboxylic acids, -anhydrides, -esters in solid and liquid compositions
• CPC Class Codes: C11D 3/3776 Heterocyclic compounds, e.g. lactam
• CPC Class Codes: C11D 3/48 Medical, disinfecting agents, disinfecting, antibacterial, germicidal or antimicrobial compositions
• CPC Class Codes: C11D 9/007 Soaps or soap mixtures with well defined chain length
• CPC Class Codes: C11D 9/02 on alkali or ammonium soaps
• CPC Class Codes: C11D 9/10 Salts
• CPC Class Codes: C11D 9/18 Water-insoluble compounds
• CPC Class Codes: C11D 9/225 Polymers
• CPC Class Codes: C11D 9/30 containing nitrogen C11D9/225 takes precedence

Abstract

In one aspect is disclosed a cleansing composition comprising: (i) a surfactant; (ii) an oligodynamic metal or ions thereof; (iii) a chelating agent; and, a polymer having a group comprising a site having one or more lone pair of electrons wherein, said surfactant is soap. The polymer having a group comprising a site having one or more lone pair of electrons enhances the antimicrobial efficacy of the oligodynamic metal.

Claims

1. A cleansing composition comprising:

(i) a surfactant;

(ii) 0.00001 to 5 wt % of an oligodynamic metal selected from the group consisting of silver, oxide, silver nitrate, silver acetate, silver sulfate, silver benzoate, silver salicylate, silver carbonate, silver citrate or silver phosphate;

(iii) a chelating agent; and

,

0.001 to 2% of a polymer having a group comprising a site having one or more lone pair of electrons, wherein said polymer is selected from the group consisting of polyvinylpyrrolidone, polyvinylacetate, polyvinyl alcohol or a copolymer thereof, and mixtures thereof;

wherein, said surfactant is soap.

2. A composition as claimed in claim 1 comprising 10 wt % to 85 wt % surfactant.

3. A cleansing composition as claimed in claim 1 wherein said chelating agent is ethylene diamine tetraacetic acid (EDTA), ethylene diamine dissuccinate (EDDS), N,N-bis(carboxymethyl) glutamic acid (GLDA), Diethylenetriaminepentaacetic acid (DTPA), Nitrilotriacetic acid (NTA) or Ethanoldiglycinic acid ((EDG).

4. A composition as claimed in claim 1 wherein ratio of said metal to said polymer is in the range of 1:

1 to 1;

500.

5. A composition as claimed in claim 2 wherein the polyvinylpyrrolidone content in said copolymer is from 10% to 95%.