WO2005049782A1 - Improved low ph detergent composition - Google Patents
Improved low ph detergent composition Download PDFInfo
- Publication number
- WO2005049782A1 WO2005049782A1 PCT/EP2004/012250 EP2004012250W WO2005049782A1 WO 2005049782 A1 WO2005049782 A1 WO 2005049782A1 EP 2004012250 W EP2004012250 W EP 2004012250W WO 2005049782 A1 WO2005049782 A1 WO 2005049782A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- soap
- soaps
- low
- sodium
- magnesium
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D9/00—Compositions of detergents based essentially on soap
- C11D9/04—Compositions of detergents based essentially on soap containing compounding ingredients other than soaps
- C11D9/22—Organic compounds, e.g. vitamins
- C11D9/26—Organic compounds, e.g. vitamins containing oxygen
- C11D9/267—Organic compounds, e.g. vitamins containing oxygen containing free fatty acids
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D10/00—Compositions of detergents, not provided for by one single preceding group
- C11D10/04—Compositions of detergents, not provided for by one single preceding group based on mixtures of surface-active non-soap compounds and soap
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D9/00—Compositions of detergents based essentially on soap
- C11D9/002—Non alkali-metal soaps
Definitions
- the present invention relates to low pH soap formulations, and in particular to synergistic and selective low pH soap formulations comprised of sodium and magnesium soap.
- the soap formulation of the invention would favour obtaining only soap based low pH formulations, optionally with ' non- soap detergents, thereby enabling the preparation of desired cleansing formulations with soaps, avoiding the problems associated with synthetic detergents, and also favouring incorporation of pH sensitive benefit agents in soap formulations .
- cleansing/soap formulations are provided for the cleansing of skin with surface active preparations.
- Skin being a sensitive substrate, there is always the need to provide a formulation which would favour effective cleansing of the skin gently and without causing irritation or problems to the skin surface, and deliver benefit agents such as skin lightening, antibacterial agents, etc.
- cleansing compositions are made available to suit various end user benefits/utilities. Mildness is considered one of the key requirements to maintain proper skin benefits in the use of cleansing compositions. However, mildness is sometimes achieved at the expense of lathering and cleansing benefits. In the alternative, in case of requirements of improved lathering characteristics, the same is often achieved by sacrificing mildness of the formulation. Therefore, depending upon the specific use and application, cleansing formulations are tailor made. It is however difficult, and not always predictable as to the end properties and characteristics obtained of selective blends of fatty acid soaps and synthetic surfactants used.
- US 5,607,909 discloses a mild, lathering personal cleansing freezer bar composition by weight of the bar comprising from 30 to 85 parts of tailored fatty acid soap, from 3 parts to 30 parts synthetic surfactant and from 15 to 35 parts of water, wherein the tailored fatty acid soap is a mixture of 65% to about 95% sodium soap and 5 to about 35% magnesium soap (which is 1.5 % to 30 % magnesium soap in overall formulation) .
- This prior art is specifically directed to a mild lathering bar, and essentially involves synthetic surfactants.
- US 5,387,362 relates to personal cleansing bar made with a base soap tailored with mixed counterions ( g/K/Na) , selected saturated C14-C18 fatty acid soap and soaps selected from lauric, oleic and other minor selected water soluble soaps.
- the level of sodium, potassium and magnesium are limited to 64%, 24% and 12%.
- This prior art is again directed to improvements in mildness, while maintaining acceptable lathering/sudsing, rinsing and processing characteristics.
- US 5204014 discloses a low pH mild personal cleansing bar with lathering mild synthetic surfactants of about 20 to 50 %, and magnesium soap in amount of 5 to 50 %.
- the ratio of synthetic to Mg soap varied from 10:1 to 0.4:1 to obtain a pH in the range of 6.5 to 8.5 in 1 % solution (25°C) .
- This formulation although claims for a low pH bar clearly involves the use of synthetic detergents to control pH of soap, and also requires wax as an essential constituent.
- syndet bars synthetic detergent
- Another object of the present invention is to be able to provide for synergistic low pH soap formulations with selective soap combinations which would enable obtaining low pH only soap based formulations, and in the process further achieve the advantageous benefit characteristics of soap formulations vis-a-vis its essential combinations with synthetic detergents to reduce pH as known in the art.
- Yet further object of the present invention is directed to being able to identify possible soap based formulations which would on one hand enable maintaining desired bar properties of a soap formulation vis-a-vis synthetic detergents, and also facilitate incorporation of pH sensitive benefit agents in soap formulations thereby providing for a wider use/application of soap formulations.
- a synergistic low pH cleansing composition comprising: i) 2 % to 30 % of soaps selected from sodium and potassium soap; ii) 30 % to 80 % of soaps selected from magnesium, calcium, zinc and aluminium soaps; and iii) 4 % to 25 % water. It is found by way of the invention that the above selective formulation, which includes basically only soaps and is free of synthetic detergents, by way of a synergistic and selective combination of the soaps selected from sodium and potassium soap along with the soaps selected from magnesium, calcium, zinc and aluminium soaps provides unexpectedly for a low pH soap formulation.
- a low pH soap formulation comprising: soaps with or without synthetic detergents and other additives; and free fatty acid as a diluent in combination with at least one of the soaps selected from sodium, potassium, magnesium, calcium, zinc and aluminium soaps.
- synergistic low pH cleansing composition comprising:
- a process for the manufacture of low pH soap formulations comprising: i) providing 2 % to 30 % of soaps selected from sodium and potassium soap; ii) providing 30 % to 80 % of soaps selected from magnesium, calcium, zinc and aluminium soaps; and iii) providing 4 % to 25 % water.
- the process for the manufacture of the synergistic low pH soap formulation comprise:
- the above formulations of the invention thus provide for low pH cleansing compositions involving only soap, and avoiding the requirement of synthetic detergents in producing such low pH formulations.
- the compositions may be free (e.g. contain less than about 5 %, preferably less than about 3 %, preferably less than about 1 %, and ideally may be totally free) of synthetic surfactant.
- the soap-based formulations would on the one hand enable maintaining desired bar properties of a soap formulation vis-a-vis synthetic detergents, and also facilitate incorporation of pH sensitive benefit agents in soap formulations, thereby providing for a wider use or application of soap formulations.
- the above selective low pH formulation is based on a surprising finding that sodium/potassium soap, which usually has a high pH value when selectively mixed with magnesium, calcium, zinc and aluminium soaps which have lower comparative pH value in combination is usually guided by the strongly alkaline sodium/potassium soap pH except at selective concentrations of the mix, which achieve a surprisingly lower pH for the combination.
- sodium/potassium soap which usually has a high pH value when selectively mixed with magnesium, calcium, zinc and aluminium soaps which have lower comparative pH value in combination is usually guided by the strongly alkaline sodium/potassium soap pH except at selective concentrations of the mix, which achieve a surprisingly lower pH for the combination.
- compositions of the invention can include other conventional additives such as polyethylene glycol, sorbitol, glycerine, and similar skin emollients and moisturising agents, in addition to skin- benefit agents like sunscreen, skin lightening, antibacterial agents and other pH sensitive additives.
- the soap mix is selected from sodium or potassium soap in combination with soap selected from magnesium, calcium, zinc and aluminium.
- the soap formulation can involve addition of free fatty acid as a diluent, which synergistically favours obtaining soap based low pH formulations.
- the free fatty acid affects the lathering characteristics of the bars, and in particular surprisingly assists in lowering the pH levels of the formulation, apart from showing mildness improvement.
- the presence of such free fatty acid favours obtaining an emollient effect which tends to soften the skin, or otherwise improves feel on skin characteristics and scavenges any excess alkalinity.
- the free fatty acid suitable can be selected from stearic acid, hysteric acid, palmitic acid, myristric acid and lauric acid and mixtures thereof. It can preferably be present at a level of up to 20 %, conveniently 0.1 % to 15 %, preferably 1 % to 12 %, optionally 5 % to 10
- the formulation of the invention can optionally include synthetic detergent surfactants, which are typically selected from anionic, nonionic, amphoteric and zwetterionic synthetic detergents. Both low and high lathering/water solubility surfactants can be used along with suds boosting synthetic detergent surfactants as good dispersants.
- Examples 23 to 32 The following examples illustrate the effect of dilution of magnesium soap using diluents such as sorbitol and free fatty acid.
- concentration of the diluent effects of magnesium salts in combination with FFA/Sorbitol was studied with concentrations of the solutions as detailed hereunder in Table III.
- the invention would on one hand enable maintaining desired advantageous bar properties of a soap formulation vis-a-vis synthetic detergents, and also facilitate incorporation of pH sensitive benefit agents in soap formulations, thereby providing for a wider use/application of soap formulations.
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04791012A EP1685229A1 (en) | 2003-11-18 | 2004-10-28 | Improved low ph detergent composition |
BRPI0415776-1A BRPI0415776A (en) | 2003-11-18 | 2004-10-28 | synergistic cleaning composition and process for making soap formulations |
MXPA06005631A MXPA06005631A (en) | 2003-11-18 | 2004-10-28 | Improved low ph detergent composition. |
AU2004291625A AU2004291625A1 (en) | 2003-11-18 | 2004-10-28 | Improved low pH detergent composition |
CA002544336A CA2544336A1 (en) | 2003-11-18 | 2004-10-28 | Improved low ph detergent composition |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IN1193/MUM/2003 | 2003-11-18 | ||
IN1193MU2003 | 2003-11-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005049782A1 true WO2005049782A1 (en) | 2005-06-02 |
Family
ID=32040234
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2004/012250 WO2005049782A1 (en) | 2003-11-18 | 2004-10-28 | Improved low ph detergent composition |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP1685229A1 (en) |
AU (1) | AU2004291625A1 (en) |
BR (1) | BRPI0415776A (en) |
CA (1) | CA2544336A1 (en) |
GB (1) | GB0403410D0 (en) |
MX (1) | MXPA06005631A (en) |
WO (1) | WO2005049782A1 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1803803A2 (en) * | 2005-12-30 | 2007-07-04 | Lam Research Corporation | Cleaning compounds and method and system for using the cleaning compound |
US9622951B2 (en) | 2012-10-29 | 2017-04-18 | The Procter & Gamble Company | Personal care compositions |
WO2018015759A1 (en) * | 2016-07-21 | 2018-01-25 | Cosmetic Warriors Limited | Solid soap composition |
US10959933B1 (en) | 2020-06-01 | 2021-03-30 | The Procter & Gamble Company | Low pH skin care composition and methods of using the same |
US11110049B2 (en) | 2017-06-23 | 2021-09-07 | The Procter & Gamble Company | Composition and method for improving the appearance of skin |
US11583488B2 (en) | 2020-06-01 | 2023-02-21 | The Procter & Gamble Company | Method of improving penetration of a vitamin B3 compound into skin |
US11622963B2 (en) | 2018-07-03 | 2023-04-11 | The Procter & Gamble Company | Method of treating a skin condition |
Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB756502A (en) * | 1953-07-13 | 1956-09-05 | Hedley Thomas & Co Ltd | Soap-synthetic bar |
GB844918A (en) * | 1958-02-20 | 1960-08-17 | Unilever Ltd | Soap compositions |
US2988511A (en) * | 1955-03-31 | 1961-06-13 | Mills Victor | Nonsmearing detergent bar |
US3030310A (en) * | 1957-10-28 | 1962-04-17 | Colgate Palmolive Co | Combination soap-synthetic detergent bar |
GB945062A (en) * | 1960-09-05 | 1963-12-18 | Procter & Gamble Ltd | Improvements in detergent bars |
GB989007A (en) * | 1961-01-23 | 1965-04-14 | Procter & Gamble | Detergent bar |
GB1235292A (en) * | 1967-12-11 | 1971-06-09 | Unilever Ltd | Liquid soap composition |
WO1993002174A1 (en) * | 1991-07-15 | 1993-02-04 | The Procter & Gamble Company | A personal cleansing freezer bar made with a rigid, interlocking mesh of neutralized carboxylic acid |
US5204014A (en) * | 1991-03-13 | 1993-04-20 | The Procter & Gamble Company | Low pH mild personal cleansing bar with lathering mild synthetic surfactant and magnesium soap |
US5312559A (en) * | 1992-07-07 | 1994-05-17 | The Procter & Gamble Company | Personal cleanser with moisturizer |
WO1995013357A1 (en) * | 1993-11-08 | 1995-05-18 | The Procter & Gamble Company | Topped, distilled, cocoyl isethionate skin cleansing bar |
US5607909A (en) * | 1995-01-31 | 1997-03-04 | The Procter & Gamble Company | Personal cleansing freezer bar with tailored fatty acid soap |
-
2004
- 2004-02-17 GB GBGB0403410.4A patent/GB0403410D0/en not_active Ceased
- 2004-10-28 AU AU2004291625A patent/AU2004291625A1/en not_active Abandoned
- 2004-10-28 WO PCT/EP2004/012250 patent/WO2005049782A1/en not_active Application Discontinuation
- 2004-10-28 EP EP04791012A patent/EP1685229A1/en not_active Withdrawn
- 2004-10-28 MX MXPA06005631A patent/MXPA06005631A/en unknown
- 2004-10-28 CA CA002544336A patent/CA2544336A1/en not_active Abandoned
- 2004-10-28 BR BRPI0415776-1A patent/BRPI0415776A/en not_active Application Discontinuation
Patent Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB756502A (en) * | 1953-07-13 | 1956-09-05 | Hedley Thomas & Co Ltd | Soap-synthetic bar |
US2988511A (en) * | 1955-03-31 | 1961-06-13 | Mills Victor | Nonsmearing detergent bar |
US3030310A (en) * | 1957-10-28 | 1962-04-17 | Colgate Palmolive Co | Combination soap-synthetic detergent bar |
GB844918A (en) * | 1958-02-20 | 1960-08-17 | Unilever Ltd | Soap compositions |
GB945062A (en) * | 1960-09-05 | 1963-12-18 | Procter & Gamble Ltd | Improvements in detergent bars |
GB989007A (en) * | 1961-01-23 | 1965-04-14 | Procter & Gamble | Detergent bar |
GB1235292A (en) * | 1967-12-11 | 1971-06-09 | Unilever Ltd | Liquid soap composition |
US5204014A (en) * | 1991-03-13 | 1993-04-20 | The Procter & Gamble Company | Low pH mild personal cleansing bar with lathering mild synthetic surfactant and magnesium soap |
WO1993002174A1 (en) * | 1991-07-15 | 1993-02-04 | The Procter & Gamble Company | A personal cleansing freezer bar made with a rigid, interlocking mesh of neutralized carboxylic acid |
US5312559A (en) * | 1992-07-07 | 1994-05-17 | The Procter & Gamble Company | Personal cleanser with moisturizer |
WO1995013357A1 (en) * | 1993-11-08 | 1995-05-18 | The Procter & Gamble Company | Topped, distilled, cocoyl isethionate skin cleansing bar |
US5607909A (en) * | 1995-01-31 | 1997-03-04 | The Procter & Gamble Company | Personal cleansing freezer bar with tailored fatty acid soap |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1803803A2 (en) * | 2005-12-30 | 2007-07-04 | Lam Research Corporation | Cleaning compounds and method and system for using the cleaning compound |
EP1803803A3 (en) * | 2005-12-30 | 2012-08-01 | Lam Research Corporation | Cleaning compounds and method and system for using the cleaning compound |
US9622951B2 (en) | 2012-10-29 | 2017-04-18 | The Procter & Gamble Company | Personal care compositions |
WO2018015759A1 (en) * | 2016-07-21 | 2018-01-25 | Cosmetic Warriors Limited | Solid soap composition |
GB2553498A (en) * | 2016-07-21 | 2018-03-14 | Cosmetic Warriors Ltd | Composition |
US11110049B2 (en) | 2017-06-23 | 2021-09-07 | The Procter & Gamble Company | Composition and method for improving the appearance of skin |
US11622963B2 (en) | 2018-07-03 | 2023-04-11 | The Procter & Gamble Company | Method of treating a skin condition |
US10959933B1 (en) | 2020-06-01 | 2021-03-30 | The Procter & Gamble Company | Low pH skin care composition and methods of using the same |
US11583488B2 (en) | 2020-06-01 | 2023-02-21 | The Procter & Gamble Company | Method of improving penetration of a vitamin B3 compound into skin |
US11911498B2 (en) | 2020-06-01 | 2024-02-27 | The Procter & Gamble Company | Low pH skin care composition and methods of using the same |
Also Published As
Publication number | Publication date |
---|---|
BRPI0415776A (en) | 2006-12-26 |
CA2544336A1 (en) | 2005-06-02 |
AU2004291625A1 (en) | 2005-06-02 |
MXPA06005631A (en) | 2006-08-17 |
GB0403410D0 (en) | 2004-03-24 |
EP1685229A1 (en) | 2006-08-02 |
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