US2128113A - Stable oxygen-yielding washing powder - Google Patents
Stable oxygen-yielding washing powder Download PDFInfo
- Publication number
- US2128113A US2128113A US23518A US2351835A US2128113A US 2128113 A US2128113 A US 2128113A US 23518 A US23518 A US 23518A US 2351835 A US2351835 A US 2351835A US 2128113 A US2128113 A US 2128113A
- Authority
- US
- United States
- Prior art keywords
- yielding
- washing powder
- stable
- oxygen
- washing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000000843 powder Substances 0.000 title description 19
- 238000005406 washing Methods 0.000 title description 17
- 239000000203 mixture Substances 0.000 description 13
- 239000000344 soap Substances 0.000 description 10
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 8
- 239000003599 detergent Substances 0.000 description 7
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 6
- 235000019353 potassium silicate Nutrition 0.000 description 5
- 229910052783 alkali metal Inorganic materials 0.000 description 4
- 239000004615 ingredient Substances 0.000 description 4
- MWNQXXOSWHCCOZ-UHFFFAOYSA-L sodium;oxido carbonate Chemical class [Na+].[O-]OC([O-])=O MWNQXXOSWHCCOZ-UHFFFAOYSA-L 0.000 description 4
- VTIIJXUACCWYHX-UHFFFAOYSA-L disodium;carboxylatooxy carbonate Chemical compound [Na+].[Na+].[O-]C(=O)OOC([O-])=O VTIIJXUACCWYHX-UHFFFAOYSA-L 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- -1 fatty alcohol sulfonates Chemical class 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 229940045872 sodium percarbonate Drugs 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 150000001340 alkali metals Chemical class 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 239000000391 magnesium silicate Substances 0.000 description 1
- 229910052919 magnesium silicate Inorganic materials 0.000 description 1
- 235000019792 magnesium silicate Nutrition 0.000 description 1
- ZADYMNAVLSWLEQ-UHFFFAOYSA-N magnesium;oxygen(2-);silicon(4+) Chemical compound [O-2].[O-2].[O-2].[Mg+2].[Si+4] ZADYMNAVLSWLEQ-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229960001922 sodium perborate Drugs 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- YKLJGMBLPUQQOI-UHFFFAOYSA-M sodium;oxidooxy(oxo)borane Chemical compound [Na+].[O-]OB=O YKLJGMBLPUQQOI-UHFFFAOYSA-M 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
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
- C11D9/42—Per-compounds
-
- 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
- C11D9/06—Inorganic compounds
- C11D9/08—Water-soluble compounds
- C11D9/10—Salts
- C11D9/12—Carbonates
Definitions
- the object of this invention is a process for the preparation of stable oxygen-yielding washing powders, utilizing percarbonate salts such as the alkali metal percarbonates. It has been found that stable compositions are obtained when the moisture content is restricted in accordance with the following disclosure.
- Washing powders are ordinarily powdery mixtures which contain besides soap powders also additional materials such as soda, water glass and the like.
- perborates especially sodium perborate
- these salts when mixed with soap and the other usual ingredients of washing powders, such as soda, water glass and the like, were the most stable.
- mixtures with a moisture content of about 25% are much more stable, and that mixtures with a moisture content 01' 10% or less, preferably 5-7%, have such good stability that they are in no way inferior to the detergents prepared with alkali metal perborates and remain practically unchanged after several months storage. If desired, the water can be extracted to such an extent that practically dry substances are obtained.
- the novel stable oxygen-yielding washing powders containing percarbonate with which our invention is concerned may be prepared by adding an alkeiim tel-nereerbo such a sodium percarbonate, to a detergent mixture comprising soap and sodium garb onate.
- the detergent r'n ixtuie' may contain, in addition to the soap and soda, other substances which are usually present in washing powders such as water glass (sodium silicate).
- the resulting mixture is dehy drated so that its moisture content falls within tl'ie'iange 5 to This range represents the per cent moisture content by weight and is based upon the weight of the ingredients comprising the complete oxygen-yielding washing powder.
- antioxidants such as magnesium silicate, and the like.
- soap substitutes such as fatty alcohol sulfonates and the like, may be used.
- a stable alkaline oxygen-yielding washing powder which comprises an alkali metal percarbonate, sodium carbonate, and soap, the moisture content of said washing powder falling within the limits 5 to 7% by weight, based on the weight of said washing powder.
- a stable alkaline oxygen-yielding washing powder which comprises an alkali metal percarbonate, sodium carbonate, soap, and water glass, the moisture content of said washing powder falling within the limits 5 to 7% by weight, based on the weight of said washing powder.
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)
- Inorganic Chemistry (AREA)
- Detergent Compositions (AREA)
Description
252. COMPOSITIONS,
Patented Aug. 23, 1938 UNITED STATES Examine PATENT OFFICE STABLE OXYGEN-YIELDING WASHING POWDER Karl Bauer, Frankfort-on-the-Main, and Friedrich Pressel and Hans Medweth, Rheinfelden/- Baden, Germany, assignors to Deutsche Gold und Silber Scheideanstalt vormals Roessler. Frankfort-on-the-Main, Germany, a. corporation of Germany No Drawing. Application May 25, 1935, Serial No. 23,518. In Germany June 9, 1934 2 Claims.
The object of this invention is a process for the preparation of stable oxygen-yielding washing powders, utilizing percarbonate salts such as the alkali metal percarbonates. It has been found that stable compositions are obtained when the moisture content is restricted in accordance with the following disclosure.
Washing powders are ordinarily powdery mixtures which contain besides soap powders also additional materials such as soda, water glass and the like.
Up to this time perborates, especially sodium perborate, have been used extensively in the preparation of oxygen-yielding washing powders or detergents, because these salts when mixed with soap and the other usual ingredients of washing powders, such as soda, water glass and the like, were the most stable. Perborates when mixed with soap powders, soda, water glass and the like, lose only a small per cent of their original active oxygen content after storage for one year.
The preparation of stable detergents utilizing the percarbonates has been attempted in various ways. The experiments, however, have not been entirely successful, since mixtures of the same composition as the perborate detergent mixtures are always much less stable and lose a great deal or all of their active oxygen within a comparatively short time. An effort has been made to stabilize the percarbonates by means of anticatalysts or by covering them with hydrophobic substances. However, these experiments have not given successful results.
Recently it has been found that stable mixtures of percarbonates such as sodium percarbonate with soaps and the other usual ingredients of washing powders can be produced in the absence of water. If, for example, the percarbonate is mixed with the other anhydrous ingredients oi the washing powder, mixtures are obtained which have excellent stability.
As a result of many experiments it has been ascertained that mixtures with a moisture content of about 25% are much more stable, and that mixtures with a moisture content 01' 10% or less, preferably 5-7%, have such good stability that they are in no way inferior to the detergents prepared with alkali metal perborates and remain practically unchanged after several months storage. If desired, the water can be extracted to such an extent that practically dry substances are obtained.
The novel stable oxygen-yielding washing powders containing percarbonate with which our invention is concerned may be prepared by adding an alkeiim tel-nereerbo such a sodium percarbonate, to a detergent mixture comprising soap and sodium garb onate. If desired, the detergent r'n ixtuie'may contain, in addition to the soap and soda, other substances which are usually present in washing powders such as water glass (sodium silicate). After the addition of the sodium percarbonate to the detergent mixture, the resulting mixture is dehy drated so that its moisture content falls within tl'ie'iange 5 to This range represents the per cent moisture content by weight and is based upon the weight of the ingredients comprising the complete oxygen-yielding washing powder.
To the percarbonate can be added stabilizers such as magnesium silicate, and the like.
According to the invention, in place of soap or in combination with it, soap substitutes, such as fatty alcohol sulfonates and the like, may be used.
We claim:
1. A stable alkaline oxygen-yielding washing powder which comprises an alkali metal percarbonate, sodium carbonate, and soap, the moisture content of said washing powder falling within the limits 5 to 7% by weight, based on the weight of said washing powder.
2. A stable alkaline oxygen-yielding washing powder which comprises an alkali metal percarbonate, sodium carbonate, soap, and water glass, the moisture content of said washing powder falling within the limits 5 to 7% by weight, based on the weight of said washing powder.
KARL BAUER. FRIEDRICH PRESSEL. HANS MEDWETH.
a i i
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2128113X | 1934-06-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US2128113A true US2128113A (en) | 1938-08-23 |
Family
ID=7986276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US23518A Expired - Lifetime US2128113A (en) | 1934-06-09 | 1935-05-25 | Stable oxygen-yielding washing powder |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2128113A (en) |
| BE (1) | BE409748A (en) |
| NL (1) | NL41783C (en) |
-
0
- BE BE409748D patent/BE409748A/xx unknown
- NL NL41783D patent/NL41783C/xx active
-
1935
- 1935-05-25 US US23518A patent/US2128113A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| BE409748A (en) | |
| NL41783C (en) |
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