US3069360A - Detergent compositions for removing silicone grease - Google Patents
Detergent compositions for removing silicone grease Download PDFInfo
- Publication number
- US3069360A US3069360A US760526A US76052658A US3069360A US 3069360 A US3069360 A US 3069360A US 760526 A US760526 A US 760526A US 76052658 A US76052658 A US 76052658A US 3069360 A US3069360 A US 3069360A
- Authority
- US
- United States
- Prior art keywords
- silicone grease
- percent
- weight
- sodium
- propylene
- 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
- 239000000203 mixture Substances 0.000 title claims description 25
- 229920001296 polysiloxane Polymers 0.000 title claims description 17
- 239000004519 grease Substances 0.000 title claims description 14
- 239000003599 detergent Substances 0.000 title description 10
- 229910052751 metal Inorganic materials 0.000 claims description 15
- 239000002184 metal Substances 0.000 claims description 15
- -1 OXYETHYLENE-OXY 1,2 PROPYLENE DIOL Chemical class 0.000 claims description 12
- 238000004140 cleaning Methods 0.000 claims description 12
- 239000002689 soil Substances 0.000 claims description 8
- DURPTKYDGMDSBL-UHFFFAOYSA-N 1-butoxybutane Chemical compound CCCCOCCCC DURPTKYDGMDSBL-UHFFFAOYSA-N 0.000 claims description 6
- 239000000344 soap Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 claims description 5
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 claims description 5
- 239000004115 Sodium Silicate Substances 0.000 claims description 5
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 5
- 239000000194 fatty acid Substances 0.000 claims description 5
- 229930195729 fatty acid Natural products 0.000 claims description 5
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 5
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 5
- 229910052783 alkali metal Inorganic materials 0.000 claims description 4
- BCKXLBQYZLBQEK-KVVVOXFISA-M Sodium oleate Chemical compound [Na+].CCCCCCCC\C=C/CCCCCCCC([O-])=O BCKXLBQYZLBQEK-KVVVOXFISA-M 0.000 claims description 3
- BTURAGWYSMTVOW-UHFFFAOYSA-M sodium dodecanoate Chemical compound [Na+].CCCCCCCCCCCC([O-])=O BTURAGWYSMTVOW-UHFFFAOYSA-M 0.000 claims description 3
- 229940082004 sodium laurate Drugs 0.000 claims description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- POULHZVOKOAJMA-UHFFFAOYSA-N dodecanoic acid Chemical compound CCCCCCCCCCCC(O)=O POULHZVOKOAJMA-UHFFFAOYSA-N 0.000 description 6
- 239000000243 solution Substances 0.000 description 5
- 239000004094 surface-active agent Substances 0.000 description 5
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 4
- 239000005639 Lauric acid Substances 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 3
- 159000000011 group IA salts Chemical class 0.000 description 3
- 235000019795 sodium metasilicate Nutrition 0.000 description 3
- POWFTOSLLWLEBN-UHFFFAOYSA-N tetrasodium;silicate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-][Si]([O-])([O-])[O-] POWFTOSLLWLEBN-UHFFFAOYSA-N 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 125000000129 anionic group Chemical group 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 150000002009 diols Chemical class 0.000 description 2
- 150000004665 fatty acids Chemical group 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 150000002739 metals Chemical class 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
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920001983 poloxamer Polymers 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000004447 silicone coating Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000000126 substance 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
- 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
- C11D10/045—Compositions of detergents, not provided for by one single preceding group based on mixtures of surface-active non-soap compounds and soap based on non-ionic surface-active 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
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/72—Ethers of polyoxyalkylene glycols
Definitions
- This invention relates to improvements in alkaline detergents for the cleaning of metal surfaces. More particularly the invention concerns alkaline detergent compositions suitable for use in the removal of silicone greases from the surfaces of metal objects as a step in the fabrication of the metal into a finished product having a coating on the surface of the metal.
- a primary object of this invention is the development of aqueous alkaline detergent compositions capable of effectively removing silicone grease soils from metal surfaces.
- Another object of the invention is the presentation of an alkaline detergent composition for use in aqueous solutions and capable of removing silicone grease soils from the surfaces of ferrous metals and their alloys.
- cleaners capable of efiiciently removing silicone grease soils from metals can be attained by the addition of specific, stable, anionic and non-ionic types of surface active agents to alkaline salt detergents of high alkalinity.
- alkaline salt detergents of high alkalinity is meant those salts or mixtures thereof which when dissolved in suitable amounts of water will produce solutions having a minimum pH of 13.1 and preferably higher.
- the surface-active agents should consist of suitable amounts of a non-ionic material of the polyoxyalkylene diol type or mixtures thereof and an anionic material of the alkali metal fatty acid soap type.
- a non-ionic material of the polyoxyalkylene diol type or mixtures thereof and an anionic material of the alkali metal fatty acid soap type.
- the polyoxyalkylene diol surface active agents suitable for use are the monobutyl ethers of oxyethylene-oxy 1,2 propylene diols sold commercially as Ucon 50HB-3520 and Ucon SO-HB-S 100.
- the Ucon 50HB types of oxyethylene-oxy 1,2 propylene diols are compositions covered by US. Patent No. 2,425,845.
- the specific non-ionic surface active agent used in the working example is Ucon 5 0-HB-3520 which is the monobutyl ether of a mixed ethylene-propylene polyoxyalkylene glycol in which the weight ratio of ethylene oxide to 1,2 propylene oxide is 1:1 and in which the total molecular weight of the butyl derivative is about 2. 3500 or greater.
- an alkali metal fatty acid soap type of surface active agent sodium laurate, sodium oleate or any other similar compound has been found. to be suitable for use in the cleaning composition of this invention.
- Example I Percent by weight Sodium orthosilicate 87.6 Ucon 50-HE3520 5.7 Why acid 6.7
- This composition when used at a concentration of approximately 9.5 ounces per gallon of water at boiling temperature effectively removes silicone grease soils from metal surfaces.
- Example II Percent by weight Sodium metasilicate 50.0
- the sodium orthosilicate and sodium metasilicate of the above examples are anhydrous grade.
- the lauric acid employed was of the Neo-Fat 11 brand as manufactured by the Amour Chemical Division of Armour and Company. As will be obvious to those skilled in the art, the lauric or other type fatty acids forms the sodium soap in situ on solution of the ingredients in water.
- the nonionic content of the cleaners may be varied from 4.5 to 7.5 percent by weight and the fatty acid soap content may be varied from 6.0 to 10.0 percent by weight.
- the concentration of aqueous solutions of the detergent compositions of this invention may be varied from approximately 8.0 to 12.0 ounces per gallon of water, 9.5 ounces per gallon representing the optimum value.
- a silicone grease cleaning composition capable of removing silicone grease soils from metal surfaces consisting essentially of, by weight, of from 4.5 to 7.5 percent of the monobutyl ether of oxyethylene-oxy 1,2 propylene diol in which the weight ratio of ethylene oxide to propylene oxide is 1:1 and in which the total molecular weight of the butyl derivative is greater than about 3500, of from 6 to 10 percent of a water soluble alkali metal fatty acid soap selected from the group consisting of sodium laurate and sodium oleate and the remainder of the composition consisting essentially of a sodium silicate.
- a silicone grease cleaning composition consisting of, by weight, 87.6 percent sodium orthosilicate, 5.7 percent of the monobutyl ether of oxyethylene-oxy 1,2 propylene diol in which the weight ratio of ethylene oxide to propylene oxide is 1:1 and in which the total molecular weight of the butyl derivative is greater than about 3500 and 6.7 percent lauric acid.
- a silicone grease cleaning composition consisting of, by weight, approximately 50 percent sodium metasilicate, 37.6 percent sodium hydroxide, 5.7 percent of the monobutyl ether of oXyethylene-oxy 1,2 propylene diol in which the weight ratio of ethylene oxide to propylene oxide is 1:1 and in which the total molecular weight of the butyl derivative is greater than about 3500 and 6.7 percent lauric acid.
- An aqueous cleaning solution capable of removing silicone grease soils from metal surfaces containing from 6to 10 percent by weight of the cleaning composition of claim 3.
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- 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)
- Detergent Compositions (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Description
United States Patent Office 3,0h9,3fi Patented Dec. '18, 1962 The invention described herein may be manufactured and used by or for the Government for governmental purposes without the payment to me of any royalty thereon.
This invention relates to improvements in alkaline detergents for the cleaning of metal surfaces. More particularly the invention concerns alkaline detergent compositions suitable for use in the removal of silicone greases from the surfaces of metal objects as a step in the fabrication of the metal into a finished product having a coating on the surface of the metal.
Prior to the discovery of the invention to be described hereinafter it was particularly difficult to remove silicone grease soils from metal surfaces. Known aqueous alkaline cleaning solutions, particularly those of the hot soak tank type, were generally incapable of cleaning silicone greases from metals regardless of their alkalinity or the type of surface-active additive and alkaline salt detergents employed. The highly lipophilic character of the silicone grease rendered it immune to removal by known aqueous detergent solutions.
The recent greatly increased usage of silicone coating compositions, and the difficulty of removing these coatings by conventional aqueous solutions makes it imperative that an efficient, rapid and inexpensive composition be developed for accomplishing the removal of silicones from metal and other surfaces.
Therefore a primary object of this invention is the development of aqueous alkaline detergent compositions capable of effectively removing silicone grease soils from metal surfaces.
Another object of the invention is the presentation of an alkaline detergent composition for use in aqueous solutions and capable of removing silicone grease soils from the surfaces of ferrous metals and their alloys.
In accordance with the above mentioned objectives it has now been found that cleaners capable of efiiciently removing silicone grease soils from metals can be attained by the addition of specific, stable, anionic and non-ionic types of surface active agents to alkaline salt detergents of high alkalinity. By alkaline salt detergents of high alkalinity is meant those salts or mixtures thereof which when dissolved in suitable amounts of water will produce solutions having a minimum pH of 13.1 and preferably higher.
For an effective cleaning composition, the surface-active agents should consist of suitable amounts of a non-ionic material of the polyoxyalkylene diol type or mixtures thereof and an anionic material of the alkali metal fatty acid soap type. Examples of the polyoxyalkylene diol surface active agents suitable for use are the monobutyl ethers of oxyethylene-oxy 1,2 propylene diols sold commercially as Ucon 50HB-3520 and Ucon SO-HB-S 100. The Ucon 50HB types of oxyethylene-oxy 1,2 propylene diols are compositions covered by US. Patent No. 2,425,845. The specific non-ionic surface active agent used in the working example is Ucon 5 0-HB-3520 which is the monobutyl ether of a mixed ethylene-propylene polyoxyalkylene glycol in which the weight ratio of ethylene oxide to 1,2 propylene oxide is 1:1 and in which the total molecular weight of the butyl derivative is about 2. 3500 or greater. As an example of an alkali metal fatty acid soap type of surface active agent, sodium laurate, sodium oleate or any other similar compound has been found. to be suitable for use in the cleaning composition of this invention.
The following specific examples are given by way of iilustrating preferred embodiments of the alkaline cleaner compositions of this invention. In these examples as elsewhere throughout the specification and claims, all weights and percentages are given in terms of weight unless specifically designated to the contrary.
Example I Component: Percent by weight Sodium orthosilicate 87.6 Ucon 50-HE3520 5.7 Laurie acid 6.7
This composition when used at a concentration of approximately 9.5 ounces per gallon of water at boiling temperature effectively removes silicone grease soils from metal surfaces.
Example II Component: Percent by weight Sodium metasilicate 50.0
Sodium hydroxide 37.6
Ucon 50-HB3520 5.7
Laurie acid 6.7
This composition is used in the same manner as that of Example I.
The sodium orthosilicate and sodium metasilicate of the above examples are anhydrous grade. The lauric acid employed was of the Neo-Fat 11 brand as manufactured by the Amour Chemical Division of Armour and Company. As will be obvious to those skilled in the art, the lauric or other type fatty acids forms the sodium soap in situ on solution of the ingredients in water.
The examples given above illustrate cleaner compositions adapted to give optimum detergency. However, the nonionic content of the cleaners may be varied from 4.5 to 7.5 percent by weight and the fatty acid soap content may be varied from 6.0 to 10.0 percent by weight. The concentration of aqueous solutions of the detergent compositions of this invention may be varied from approximately 8.0 to 12.0 ounces per gallon of water, 9.5 ounces per gallon representing the optimum value.
While the instant invention has been shown and described herein in what are conceived to be the .most practical and preferred embodiments, it is to be recognized that departures may be made therefrom within the scope of the invention, which is therefore not to be limited to the details disclosed herein but is to be accorded the full scope of the claims so as to embrace any and all equivalents.
What is claimed and desired to be secured by United States Letters Patent is:
1. A silicone grease cleaning composition capable of removing silicone grease soils from metal surfaces consisting essentially of, by weight, of from 4.5 to 7.5 percent of the monobutyl ether of oxyethylene-oxy 1,2 propylene diol in which the weight ratio of ethylene oxide to propylene oxide is 1:1 and in which the total molecular weight of the butyl derivative is greater than about 3500, of from 6 to 10 percent of a water soluble alkali metal fatty acid soap selected from the group consisting of sodium laurate and sodium oleate and the remainder of the composition consisting essentially of a sodium silicate.
2. A silicone grease cleaning composition consisting of, by weight, 87.6 percent sodium orthosilicate, 5.7 percent of the monobutyl ether of oxyethylene-oxy 1,2 propylene diol in which the weight ratio of ethylene oxide to propylene oxide is 1:1 and in which the total molecular weight of the butyl derivative is greater than about 3500 and 6.7 percent lauric acid.
3. A silicone grease cleaning composition consisting of, by weight, approximately 50 percent sodium metasilicate, 37.6 percent sodium hydroxide, 5.7 percent of the monobutyl ether of oXyethylene-oxy 1,2 propylene diol in which the weight ratio of ethylene oxide to propylene oxide is 1:1 and in which the total molecular weight of the butyl derivative is greater than about 3500 and 6.7 percent lauric acid.
4. An aqueous cleaning solution capable of removing silicone grease soils from metal surfaces containing from 6to 10 percent by weight of the cleaning composition of claim 3.
4- References Cited in the file of this patent UNITED STATES PATENTS 2,614,992 Mankowich Oct. 21, 1952 2,615,853 Kirkpatrick Oct. 28, 1952 2,806,001 Pong et al Sept. 10, 1957 FOREIGN PATENTS 716,354 Great Britain Oct. 6, 1954 OTHER REFERENCES Pluronics in Metal Cleaning Formulations, Wyandotte 5. A composition as described in claim 4 having a pH 15 Chem. Corp., pp. 11-13; receivid in U.S. Patent Office of not less than 13.1.
on Jan. 7, 1957.
Claims (1)
1. A SILICONE GREASE CLEANING COMPOSITION CAPABLE OF REMOVING SILICONE GREASE SOILS FROM METAL SURFACES CONSISTING ESSENTIALLY OF, BY WEIGHT, OF FROM 4.5 TO 7.5 PERCENT OF THE MONOBUTYL ETHER OF OXYETHYLENE-OXY 1,2 PROPYLENE DIOL IN WHICH THE WEIGHT RATIO OF ETHYLENE OXIDE TO PROPYLENE OXIDE IS 1:1 AND IN WHICH THE TOTAL MOLECULAR WEIGHT OF THE BUTYL DERIVATIVE IS GREATER THAN ABOUT 3500, OF FROM 6 TO 10 PERCENT OF A WATER SOLUBLE ALKALI METAL FATTY ACID SOAP SELECTED FROM THE GROUP CONSISTING OF SODIUM LAURATE AND SODIUM OLEATE AND THE REMAINDER OF THE COMPOSITION CONSISTING ESSENTIALLY OF A SODIUM SILICATE.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US760526A US3069360A (en) | 1958-09-11 | 1958-09-11 | Detergent compositions for removing silicone grease |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US760526A US3069360A (en) | 1958-09-11 | 1958-09-11 | Detergent compositions for removing silicone grease |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3069360A true US3069360A (en) | 1962-12-18 |
Family
ID=25059360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US760526A Expired - Lifetime US3069360A (en) | 1958-09-11 | 1958-09-11 | Detergent compositions for removing silicone grease |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US3069360A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3953351A (en) * | 1973-03-15 | 1976-04-27 | Lever Brothers Company | Liquid laundry detergent |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2614992A (en) * | 1950-11-30 | 1952-10-21 | Mankowich Abraham | Paint stripping compositions |
| US2615853A (en) * | 1948-11-04 | 1952-10-28 | Visco Products Co | Method of breaking water-in-oil emulsions |
| GB716354A (en) * | 1951-07-18 | 1954-10-06 | Bataafsche Petroleum | Metal working lubricating compositions |
| US2806001A (en) * | 1952-12-05 | 1957-09-10 | Fong Willie | Polyethyleneglycols as laundering aids |
-
1958
- 1958-09-11 US US760526A patent/US3069360A/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2615853A (en) * | 1948-11-04 | 1952-10-28 | Visco Products Co | Method of breaking water-in-oil emulsions |
| US2614992A (en) * | 1950-11-30 | 1952-10-21 | Mankowich Abraham | Paint stripping compositions |
| GB716354A (en) * | 1951-07-18 | 1954-10-06 | Bataafsche Petroleum | Metal working lubricating compositions |
| US2806001A (en) * | 1952-12-05 | 1957-09-10 | Fong Willie | Polyethyleneglycols as laundering aids |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3953351A (en) * | 1973-03-15 | 1976-04-27 | Lever Brothers Company | Liquid laundry detergent |
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