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
  • C11D9/02—Compositions of detergents based essentially on soap on alkali or ammonium soaps
• • 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
  • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
  • C11D17/0095—Solid transparent soaps or detergents
• • 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
  • C11D9/007—Soaps or soap mixtures with well defined chain length
• • 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
  • C11D9/262—Organic compounds, e.g. vitamins containing oxygen containing carbohydrates
• • 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

Definitions

• Transparent soap particularly transparent toilet soap
• transparent soap is a known product.
• the manufacture of transparent soap was complicated and involved expensive techniques like mixing with high shear mixers or, for example, addition of alcohol as a solvent for the soap.
• GB-A-2 126 603 Cold Palmolive Co.
• lanolin fatty acids
• a mixture of tallow fat and coconut oil soap was prepared in the classical manner by boiling, to which the other ingredients such as lanolin (fatty acid), possibly polyol etc. are added.
• this soap composition which contains about 0.5% sodium chloride as well as glycerol, are therefore added lanolin (fattty acid), etc.
• the sodium chloride present serves to salt out the soap and also imparts the required hardness to the soap tablet to be made.
• the soap can also be prepared by continuous saponification of fatty acid, whereafter, evidently, the further components like, for example, lanolin are incorporated.
• the invention now provides a transparent soap composition which can be prepared, in a simple manner, by means of direct saponification of fatty acid and this composition differs from that according to British patent specification (GB-A-) 2 126 603 in that there is no lanolin (fatty acid) present and the amount of sodium chloride is less than 0.2%, while the soap tablet manufactured therefrom is of excellent transparency and also, for example, sufficiently hard and has excellent foaming characteristics.
• GB-A- British patent specification
• the soap composition is preferably as follows:
• transparent soap also contains potassium and/or triethanolamine soap
• excellent results have already been obtained with predominantly or even exclusively sodium soap.
• Triethanol amine soaps are preferably applied in amounts below 15% (ww).
• C10-C14 fatty acids normally coconut fatty acids or palmkernel fatty acids are used; as C16-­C22 fatty acids (saturated or unsaturated), tallow and/or palm oil fatty acids are very suitable and these are advantageously partially replaced so as to contain up to 40% of branched chain monocarboxylic acids.
• Suitable branched chain monocarboxylic acids are conveniently obtained as a by-product of the polymerization of unsaturated fatty acids.
• the branched chain monocarboxylic acids have short side-chains (C1-C3) distributed over the carbon chain with a statistic preference for the centre carbon atoms.
• sugar alcohols like e.g. sorbitol, mannitol, and so-called (poly)glycols derived from C2-C3 glycols having a molecular weight between 62 and 1200 are considered as thermostable polyol; also other C3-C6 polyols containing 3-6 hydroxyl groups polyols like trimethylolpropane, trimethylolethane, glycerol can be used.
• C10-­C22 fatty acids particularly C10-C14 fatty acids
• saponification can also be carried out with a smaller than stoechiometric amount of alkali metal hydroxide.
• the saponification takes place at temperatures of 20-160°C and at atmospheric or super-­atmospheric pressure.
• the saponification can take place in an autoclave which is operated atmospherically or under pressure, or in a unit specially designed for saponification.
• the hydroxide it is preferable that, predominantly or even exclusively, sodium hydroxide is used.
• Adding potassium hydroxide brings no or little improvement and, in any case, increases the price of the product.
• perfume, stabilizers and dyes must be considered. These ingredients should be chosen judiciously, because they can cause opacity.
• suitable components for transparent soaps are already known.
• the present invention also provides a simple process for preparing transparent soaps, in which a fatty acid mixture of C16-C18 and C10-C14 fatty acids and possibly other components in a suitable ratio to each other is saponified, completely or not completely, and, after addition of the other components B and C as defined above, is dried to a water content of 12-20% and the material thus obtained is processed, preferably with a standard soap-processing unit, to transparent soap tablets.
• This equipment for example, consists of a mixer in which the perfume and dye are mixed with the soap granules, a refiner-plodder and a vacuum-plodder, in which, at the outlet, an extruded bar of soap is formed that is cut into billets and stamped to tablets.
• the transparency of this soap was slightly better than that of the above Example.
• Example II In a manner analogous to that described in Example I, a transparent soap composition was prepared. Now, however, not 75 g technical lauric acid was added, but 42 g, and this resulted in a transparent soap composition with 0.01% NaCl and 3% free fatty acid content. In this case the light absorption was appreciably lower than that obtained according to Example 1, namely 25%.

Landscapes

• Chemical & Material Sciences (AREA)
• Life Sciences & Earth Sciences (AREA)
• Engineering & Computer Science (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Oil, Petroleum & Natural Gas (AREA)
• Wood Science & Technology (AREA)
• Organic Chemistry (AREA)
• Health & Medical Sciences (AREA)
• Emergency Medicine (AREA)
• Molecular Biology (AREA)
• Detergent Compositions (AREA)

Priority Applications (1)

Applications Claiming Priority (2)

Publications (1)

Family

ID=19848242

Family Applications (1)

Country Status (11)

Cited By (7)

Families Citing this family (5)

Citations (6)

• 1986
  • 1986-06-30 NL NL8601701A patent/NL8601701A/nl not_active Application Discontinuation
• 1987
  • 1987-06-26 EP EP87201229A patent/EP0251410A1/en not_active Withdrawn
  • 1987-06-26 MT MT1005A patent/MTP1005B/xx unknown
  • 1987-06-29 NO NO872717A patent/NO872717L/no unknown
  • 1987-06-29 AU AU74926/87A patent/AU7492687A/en not_active Abandoned
  • 1987-06-29 DK DK332587A patent/DK332587A/da unknown
  • 1987-06-29 PT PT85202A patent/PT85202A/pt unknown
  • 1987-06-29 BR BR8703299A patent/BR8703299A/pt unknown
  • 1987-06-30 FI FI872876A patent/FI872876A/fi not_active Application Discontinuation
  • 1987-06-30 KR KR1019870006681A patent/KR880000570A/ko not_active Application Discontinuation
  • 1987-06-30 JP JP62163881A patent/JPS6339998A/ja active Pending

Patent Citations (6)

Also Published As

Similar Documents

Legal Events