GB2237026A - A cleaning solution and a method of cleaning - Google Patents
A cleaning solution and a method of cleaning Download PDFInfo
- Publication number
- GB2237026A GB2237026A GB8923385A GB8923385A GB2237026A GB 2237026 A GB2237026 A GB 2237026A GB 8923385 A GB8923385 A GB 8923385A GB 8923385 A GB8923385 A GB 8923385A GB 2237026 A GB2237026 A GB 2237026A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mixture
- mixture according
- coating
- detergent
- sequestering material
- 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.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims description 19
- 238000004140 cleaning Methods 0.000 title claims description 16
- 239000000203 mixture Substances 0.000 claims abstract description 64
- 239000011248 coating agent Substances 0.000 claims abstract description 43
- 238000000576 coating method Methods 0.000 claims abstract description 43
- 239000003599 detergent Substances 0.000 claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000000463 material Substances 0.000 claims description 35
- 230000014759 maintenance of location Effects 0.000 claims description 20
- 239000000243 solution Substances 0.000 claims description 15
- 150000001408 amides Chemical class 0.000 claims description 14
- 230000009471 action Effects 0.000 claims description 9
- 239000003344 environmental pollutant Substances 0.000 claims description 9
- 231100000719 pollutant Toxicity 0.000 claims description 9
- 239000000080 wetting agent Substances 0.000 claims description 9
- 235000019832 sodium triphosphate Nutrition 0.000 claims description 8
- BDDLHHRCDSJVKV-UHFFFAOYSA-N 7028-40-2 Chemical compound CC(O)=O.CC(O)=O.CC(O)=O.CC(O)=O BDDLHHRCDSJVKV-UHFFFAOYSA-N 0.000 claims description 7
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 7
- 239000005977 Ethylene Substances 0.000 claims description 7
- 150000001875 compounds Chemical class 0.000 claims description 7
- 239000002562 thickening agent Substances 0.000 claims description 7
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 claims description 6
- ILJSQTXMGCGYMG-UHFFFAOYSA-N triacetic acid Chemical compound CC(=O)CC(=O)CC(O)=O ILJSQTXMGCGYMG-UHFFFAOYSA-N 0.000 claims description 6
- 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 claims description 5
- 239000007864 aqueous solution Substances 0.000 claims description 4
- 229910052708 sodium Inorganic materials 0.000 claims description 4
- 239000011734 sodium Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 3
- RYCLIXPGLDDLTM-UHFFFAOYSA-J tetrapotassium;phosphonato phosphate Chemical compound [K+].[K+].[K+].[K+].[O-]P([O-])(=O)OP([O-])([O-])=O RYCLIXPGLDDLTM-UHFFFAOYSA-J 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 229910052700 potassium Inorganic materials 0.000 claims description 2
- 239000011591 potassium Substances 0.000 claims description 2
- FQENQNTWSFEDLI-UHFFFAOYSA-J sodium diphosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])([O-])=O FQENQNTWSFEDLI-UHFFFAOYSA-J 0.000 claims description 2
- 229940048086 sodium pyrophosphate Drugs 0.000 claims description 2
- 235000019818 tetrasodium diphosphate Nutrition 0.000 claims description 2
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 claims description 2
- UNXRWKVEANCORM-UHFFFAOYSA-I triphosphate(5-) Chemical compound [O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O UNXRWKVEANCORM-UHFFFAOYSA-I 0.000 claims description 2
- HRXKRNGNAMMEHJ-UHFFFAOYSA-K trisodium citrate Chemical compound [Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O HRXKRNGNAMMEHJ-UHFFFAOYSA-K 0.000 claims description 2
- 229910019142 PO4 Inorganic materials 0.000 claims 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims 1
- 239000010452 phosphate Substances 0.000 claims 1
- 150000003839 salts Chemical class 0.000 claims 1
- 239000003517 fume Substances 0.000 description 3
- 239000003352 sequestering agent Substances 0.000 description 3
- 239000003082 abrasive agent Substances 0.000 description 2
- 239000008234 soft water Substances 0.000 description 2
- LWIHDJKSTIGBAC-UHFFFAOYSA-K tripotassium phosphate Chemical compound [K+].[K+].[K+].[O-]P([O-])([O-])=O LWIHDJKSTIGBAC-UHFFFAOYSA-K 0.000 description 2
- 239000004902 Softening Agent Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- HWGNBUXHKFFFIH-UHFFFAOYSA-I pentasodium;[oxido(phosphonatooxy)phosphoryl] phosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O HWGNBUXHKFFFIH-UHFFFAOYSA-I 0.000 description 1
- 235000007686 potassium Nutrition 0.000 description 1
- 229910000160 potassium phosphate Inorganic materials 0.000 description 1
- 235000011009 potassium phosphates Nutrition 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000001488 sodium phosphate Substances 0.000 description 1
- 229910000162 sodium phosphate Inorganic materials 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000009736 wetting Methods 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
- C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
- C11D17/0008—Detergent materials or soaps characterised by their shape or physical properties aqueous liquid non soap compositions
- C11D17/003—Colloidal solutions, e.g. gels; Thixotropic solutions or pastes
-
- 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
- C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
- C11D2111/40—Specific cleaning or washing processes
- C11D2111/42—Application of foam or a temporary coating on the surface to be cleaned
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (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)
Abstract
A mixture to be applied to a surface which is to be subjected to oily pollution, said mixture having a viscosity of at least 5 poise, and incorporating a detergent, the mixture being adapted to be applied to a surface to form a coating, the said coating being dissoluble in water.
Description
Description of Invention "Improvements in or relating to a cleaning solution and a method of cleaning?? THE PRESENT INVENTION relates to a cleaning solution and a method of cleaning, and more particularly relates to a cleaning solution and the method of cleaning for use in areas which are subject to oily pollutants, such as diesel fumes, for example the vehicle-carrying deck or a ferry.
It has been found that certain environments, such as the vehicle-carrying deck of a ferry, may be subjected to a high degree of pollution from oily pollutants, such as diesel fume, or the fumes generated from motor vehicles when the engines are first started. These oily pollutants tend to cling to the walls and ceiling of a vehicle deck, making it difficult, and therefore expensive, subsequently to clean the walls and ceiling.
At the present point in time, such walls and ceilings must be cleaned, either by hand, or mechanically, using powerful detergents or abrasives, which is time consuming and expensive.
The present invention seeks to provide a solution to the problems which exist, at the present point in time, in cleaning areas which are subject to oily pollutants, or other pollution.
According to one aspect of this invention there is provided a mixture adapted to be applied to a surface which is to be subjected to pollution, said mixture having a viscosity of at least 5 poise, and incorporating a detergent, the mixture being adapted to be applied to a surface to form a coating, the said coating being dissoluble in water.
Preferably the mixture is an aqueous solution.
Conveniently the detergent material comprises a sodium or potassium phosphate material, such as sodium tri-polyphosphate, sodium pyrophosphate, potassium tripolyphosphate or potassium pyrophosphate.
Conveniently the detergent is present in a concentration of up to 4 percent, such as a concentration of approximately 3 to 3.5 percent.
Preferably the mixture incorporates a sequestering material, such as the tetra-sodium salt of ethylene diamene tetra-acetic acid, or the tri-sodium salt of nitrillo tri-acetic acid. alternatively the sequestering material may be potassium salt of ethylene diamene tetra-acetic acid, or the potassium salt of nitrillo tri-acetic acid. Thus it is preferred that the sequestering material is a sodium or potassium salt of a modified tri-acetic acid.
Preferably the sequestering material is present in a concentration of up to 1.5 percent, and may have a concentration of approximately 1 percent.
Preferably the mixture incorporates a wetting agent.
Preferably the mixture incorporates a thickening agent to provide a desired viscosity. This may be the same agent as the wetting agent.
Preferably the wetting agent or thickening agent comprises a modified amide.
Conveninetly the wetting agent or the thickening agent is present in a concentration of between 3 and 12 percent, and may have a concentration of approximately 11 percent.
Preferably the mixture has a viscosity of approximately 7 poise.
According to another aspect of this invention there is provided a method of making a mixture comprising the steps of mixing together a compound having a detergent action and a sequestering material, with water, at an 0 elevated temperature between 40 and 60 C, heating a liquid modified amide to a temperature of between 40 and 0 60 C, mixing the modified amide with the aqueous solution, and subsequently storing the mixture at a lower temperature.
Conveniently the temperature of the solution and the temperature of the modified amide is approximately 0 50 C.
Preferably the compound having the detergent action is sodium tri-polyphosphate and the sequestering material is a tetra-sodium salt of ethylene diamene tetra-acetic acid.
Advantageously there are 32.7 parts by weight of a compound having a detergent action, 10.9 parts by weight of the sequestering material, 873 parts by weight of water and 107 parts by weight of the modified amide.
This invention also relates to a method of cleaning a surface, said method comprising the steps of applying to the surface a solution or mixture which provides a coating upon the said surface, leaving the coating on the surface until such time that air borne pollutants have formed on the coating, and subsequently washing the coating off the surface utilising water.
Preferably the material that forms the coating is sprayed onto the surface.
Conveniently the coating is washed off the surface using a water jet.
The invention will now be described, by way of example.
A cleaning mixture in accordance with the invention is made by mixing together 873 Kg of soft water, 32.7 Kg of sodium tri-phosphate, which has a detergent action, and 10.9 Kg of a tetra-sodium salt of ethylene diamene tetra-acetic acid, which has a sequestering action. The mixture may be formed by dissolving the detergent and the 0 seqestrant in the water at a temperature of about 50 C.
107 Kg of modified amide, such as that sold under the trade designation Ninol 1281 by Steppan Europe is heated to a temperature of approximately 500C, to reduce inherent viscosity thereof, and is then mixed with the detergent and sequestrant material as dissolved in the warm water. After an appropriate mixing time the mixture is pumped into drums, while still warm and having a relatively low viscosity, and the mixture is then allowed to cool.
When the mixture has cooled it has a viscosity of approximately 7 poise.
In utilising the mixture it is pumped, either directly from the drums, or indirectly through a spray nozzle. The pumping may be effected manually, by means of a stirrup pump or may be effected by means of a mechanically operated pump. The material is sprayed through the nozzle onto exposed surfaces in a region that is likely to be subjected to oily pollutants, such as the vehicle carrying deck of a ferry.
Since the material has a significant viscosity it tends to cling to the surfaces onto which it is sprayed, forming a coating. The material dries slightly, providing a coating which is relatively thin and which has a slight degree of tack.
It is to be appreciated that when all the exposed areas within a space such as the vehicle-carrying deck of a ferry have been coated with the material as described above, should any oily pollution occur within that space, the resultant oily deposits form on the surface of the coating as described above.
After a period of time, which is determined by the degree of pollution experienced within the space, the space may be cleaned, by simply expedient of applying a high pressure water jet to the exposed surfaces provided with the coating. The coating is water soluble, and thus the water jet washes-off the coating and, therefore, also washes-off all the pollutants which have been deposited on the surface of the coating. Thus the walls and ceilings of the vehicle-carrying deck may readily be cleaned. Once the walls and ceiling of the vehicle carrying deck have dried a fresh coating of the mixture described above may be applied.
It will be appreciated, therefore, that the cleaning mixture of the present invention is applied to surfaces which are likely to be polluted before the pollution occurs. If the coating is applied while the surfaces are clean, it will be appreciated that any pollution that does cause deposits will only lead to those deposits being formed on the outer surface of the coating, and when the coating has been washed away the pollution will also be washed away, and the surfaces are returned to their initial cleaned condition.
In utilising the invention it is no longer necessary to carry out a manual or mechanical washing of the surfaces, applying strong detergents or abrasives to remove pollutants from the surfaces in question, but instead the actual cleaning operation can be carried out with a high pressure water hose, or by some other application of water which serves to dissolve the coating that has been applied to the surface. This ensures that the cleaning process can be carried out rapidly and at a minimum cost. The step of applying the coating to the surfaces which are subsequently to be cleaned can, as mentioned above, be carried out using the spraying technique, although the coating may be applied utilising many different techniques in appropriate circumstances.
However, this means that the cost of applying the coating may be kept to a minimum.
Whilst the invention has been described with reference to one particular mixture or solution that can be applied as the coating, many modifications may be effected without departing from the scope of the invention, as defined by the following claims.
Of course, it is preferred that the solution or mixture that is applied has a viscosity which is initially greater than 5 poise and preferably 7 poise, at room temperature so the mixture will adhere to the surface to which is applied to form a coating.
The mixture which is applied must be such that the coating formed from the mixture or solution is soluble in water, so that the coating can, at a later time, easily be removed from the surface to which it has been applied.
It is for this reason that the mixture or solution that is initially applied to form the a coating is preferably a solution in an aqueous base. The mixture includes a compound having a detergent action, such as sodium tripolyphosphate. However, other equivalent materials may be utilised such as sodium or potassium pyrophosphate.
The sequestering material is provided primarily to act as a softening agent or a builder. This tends to help when the dirt is being washed off. The sequestering agent also reduces any "hardness" present in the water that is utilised. However, it is preferred to use soft water if possible.
The modified amide is provided to act as a wetting agent, to facilitate the wetting and dissolution of the coating when the water jet is subsequently applied, and also has the desired property of giving the material the appropriate viscosity for the material to cling to the surface onto which it is spread or dried to form a substantially uniform coating. sslso the modified amide leaves the resultant coating in a "tacky" state which is a desirable property so that any pollutent material may tend to cling to the coating.
The proportion of detergent may be selected to be within a range of up to 4 percent of the total mixture and the proportion of sequestrant may be selected to be within the range of up to 1.5 percent of the mixture.
The modified amide should be present within a range of 3 to 12 percent of the solution. It may be found desirable to incorporate other additives into the solution.
Claims (29)
1. A mixture adapted to be applied to a surface which is to be subjected to pollution, said mixture having a viscosity of at least 5 poise, and incorporating a detergent, the mixture being adapted to be applied to a surface to form a coating, the said coating being dissoluble in water.
2. A mixture according to claim 1, wherein the mixture is an aqueous solution.
3. A mixture according to claim 1 or 2 wherein the detergent material comprises a sodium or potasssium phosphate material.
4. A mixture according to claim 3, wherein the detergent comprises sodium tri-polyphosphate.
5. A mixture according to claim 3, wherein the detergent material comprises sodium pyrophosphate.
6. A mixture according to claim 3, wherein the detergent comprises potassium tri-polyphosphate.
7. A mixture according to claim 3, wherein the detergent comprises potassium pyrophosphate.
8. A mixture according to any one of claims 1 to 7, wherein the detergent is present in a concentration of up to 4 percent.
9. A mixture according to claim 8, wherein the detergent is present in a concentration of approximately 3 to 3.5 percent.
10. A mixture according to any one of the preceding claims incorporating a sequestering material.
11. A mixture according to claim 10, wherein the sequestering material is the tetra-sodium salt of ethylene diamene tetra-acetic acid.
12. A mixture according to claim 10, wherein the sequestering material is the tri-sodium salt of nitrillo tri-acetic acid.
13. A mixture according to claim 10, wherein the sequestering material is a potassium salt of ethylene diamene tetra-acetic acid.
14. A mixture according to claim 10, wherein the sequestering material is the potassium salt of nitrillo tri-acetic acid.
15. A mixture according to claim 10, wherein the sequestering material is a sodium or potassium salt of a modified tri-acetic acid.
16. A mixture according to any one of claims 10 to 15, wherein the sequestering material is present in a concentration of up to 1.5 percent.
17. A mixture according to claim 16, wherein the sequestering material is present in a concentration of approximately 1 percent.
18. A mixture according to any one of the preceding claims, incorporating a wetting agent.
19. A mixture according to any one of the preceding claims, incorporating a thickening agent to provide the desired viscosity.
20. A mixture according to claim 18 or 19, wherein the wetting agent or thickening agent comprises a modified amide.
21. A mixture according to any one of claims 18 to 20, wherein the wetting agent or the thickening agent is present in a concentration of between 3 and 12 percent.
22. A mixture according to claim 21, wherein the wetting agent or the thickening agent is present in a concentration of approximately 11 percent.
23. A mixture according to any one of the preceding claims wherein the viscosity is approximately 7 poise.
24. A method of making a mixture comprising the steps of mixing together a compound having a detergent action and a sequestering material, with water, at an elevated temperature between 40 and 6O0C, heating a liquid modified amide to a temperature of between 40 and 600C, mixing the modified amide with the aqueous solution, and subsequently storing the mixture at a lower temperature.
25. A method according to claim 24, wherein the temperature of the solution and the temperature of the modified amide is approximately 5O0C.
26. A method according to claim 24 or 25,wherein the compound having the detergent action is sodium tripolyphosphate and the sequestering material is a tetrasodium salt of ethylene diamene tetra-acetic acid.
27. b method according to any one of the claims 24 to 26, wherein there are 32.7 parts by weight of a compound having a detergent action, 10.9 parts by weight of the sequestering material, 873 parts by weight of water and 107 parts by weight of the modified amide.
28. A method of cleaning a surface, said method comprising the steps of applying to the surface a solution or mixture which provides a coating upon the said surface, leaving the coating on the surface until such time that air borne pollutants have formed on the coating, and subsequently washing the coating off the surface utilising water.
29. Any novel feature or combination of features disclosed herein.
29. A method according to claim 28, wherein the material that forms the coating is sprayed onto the surface.
30. A method according to claim 28 or 29, wherein the coating is washed off the surface using a water jet.
31. A method according to any one of claims 28 to 30, wherein the coating comprises a mixture according to any one of claims 1 to 23 or a mixture made by a method according to any one of claims 24 to 27.
26. A mixture substantially as herein described by way of example.
27. A method of making a mixture substantially as herein described by way of example.
28. A method of cleaning a surface substantially as herein described by way of example.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8923385A GB2237026A (en) | 1989-10-17 | 1989-10-17 | A cleaning solution and a method of cleaning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8923385A GB2237026A (en) | 1989-10-17 | 1989-10-17 | A cleaning solution and a method of cleaning |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB8923385D0 GB8923385D0 (en) | 1989-12-06 |
| GB2237026A true GB2237026A (en) | 1991-04-24 |
Family
ID=10664718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8923385A Withdrawn GB2237026A (en) | 1989-10-17 | 1989-10-17 | A cleaning solution and a method of cleaning |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2237026A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0077674A2 (en) * | 1981-10-19 | 1983-04-27 | Unilever Plc | Viscous compositions containing amidobetaines and salts |
| EP0238216A1 (en) * | 1986-02-20 | 1987-09-23 | Albright & Wilson Limited | Protected enzyme systems |
| EP0260640A2 (en) * | 1986-09-18 | 1988-03-23 | Kao Corporation | Water-soluble viscosity increasing agent and detergent composition containing the same |
| GB2202233A (en) * | 1984-12-31 | 1988-09-21 | Colgate Palmolive Co | Liquid laundry detergent composition comprising liquid nonionic surfactants |
| US4786433A (en) * | 1986-07-02 | 1988-11-22 | Ecolab Inc. | Method of preparing phosphorous-free stable detergent emulsion |
-
1989
- 1989-10-17 GB GB8923385A patent/GB2237026A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0077674A2 (en) * | 1981-10-19 | 1983-04-27 | Unilever Plc | Viscous compositions containing amidobetaines and salts |
| GB2202233A (en) * | 1984-12-31 | 1988-09-21 | Colgate Palmolive Co | Liquid laundry detergent composition comprising liquid nonionic surfactants |
| EP0238216A1 (en) * | 1986-02-20 | 1987-09-23 | Albright & Wilson Limited | Protected enzyme systems |
| US4786433A (en) * | 1986-07-02 | 1988-11-22 | Ecolab Inc. | Method of preparing phosphorous-free stable detergent emulsion |
| EP0260640A2 (en) * | 1986-09-18 | 1988-03-23 | Kao Corporation | Water-soluble viscosity increasing agent and detergent composition containing the same |
Also Published As
| Publication number | Publication date |
|---|---|
| GB8923385D0 (en) | 1989-12-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |