CA1310562C - Liquid abrasive cleaning composition - Google Patents
Liquid abrasive cleaning compositionInfo
- Publication number
- CA1310562C CA1310562C CA000587957A CA587957A CA1310562C CA 1310562 C CA1310562 C CA 1310562C CA 000587957 A CA000587957 A CA 000587957A CA 587957 A CA587957 A CA 587957A CA 1310562 C CA1310562 C CA 1310562C
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- CA
- Canada
- Prior art keywords
- composition
- weight
- alkali metal
- acids
- soap
- 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 - Fee Related
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Abstract
ABSTRACT OF THE DISCLOSURE
LIQUID ABRASIVE CLEANING COMPOSITION
In an aqueous liquid cleaning composition containing anionic synthetic detergent, soap, electrolyte, and particulate abrasive, with the electrolyte being other than tripolyphosphate, the ability to wet a stainless steel surface is enhanced by including 0.01 to 0.5% of polyacrylate or methacrylate having molecular weight of 500 to 3000.
LIQUID ABRASIVE CLEANING COMPOSITION
In an aqueous liquid cleaning composition containing anionic synthetic detergent, soap, electrolyte, and particulate abrasive, with the electrolyte being other than tripolyphosphate, the ability to wet a stainless steel surface is enhanced by including 0.01 to 0.5% of polyacrylate or methacrylate having molecular weight of 500 to 3000.
Description
C 7101 (R) 1 ~1 056~ `
LIQUID ABRASIYE CLEANING COMPOSITlON
~he present invention relates to a liquid aqueous abra~ive cleaning composition with improved wetting 2roperties.
Liquid aqueous abrasive cleaning compo~itions have been known in the art for many yearq. They are mainly u~ed for cleaning of hard surfaces to facilitate the removal of ~tubborn soil~s, greases, burnt-in materials which are far less easily removed with abrasive-free cleani-,g compositions. Usually, such liquid aqueous abrasive cleaning compositions consist of an aqueous suspending medium in which particulate abrasive material is stably suspended. The aqueous suspending medium usually consists of an aqueous solution of an anionic deter~ent or a mixture thereof with a nonionic detergent, and a water-soluble organic and/or inorganic salt in amounts such that the agueous solution obtains suspending properties. Commonly, the water-soluble salt is a phosphate such as pentasodium triphosphate, but in view of the overall trend in the detergent industry to reduce the phosphorus level in detergent compositions in view of the eutrophication problem, recently there have been proposals to reduce the phosphorus level in liquid aqueous abrasive cleaning compositions a~s well, or even to suppress the use of pentasodium trlphosphate in such compositions altogether.
~hus, we have proposed in our published European patent application 0 21~ 540 an aqueou~ liquid abrasive cleaning composition which is free from phosphates, and instead contains an electrolyte selected from the group consisting of alkali metal and ammonium salt3 of citric, carbonic, hydrochloric, succinic, adipic and glutaric acid.
C 7101 (R) 2 13105~2 In many liquid aqueo~s abcasive cleaning compo~itions the anionic detergent usually comprise~ a mixture of a synthetic anionic detesgent ~uch as the al~ali metal, ammonium and alkanolamine salts of C12-C18 branched or straight chain alkylbenzene~ulphonic acids, of C12-C18 branched or ~traight chain alkanesulphonic acids, of C12-C18 alkylmono~ulphuric acid esters, of C6-C18 dialkylmono- and di~ulpho~uccinic acid ters~ of C10-C18 alkyl (EO)l-10 monosulphuric acid esters, together with an alkali ~etal, a~monium or alkanolamine salt of a C10-C24 fatty ~cid (hereinafter referred to as "soap").
However, we have found that, if the pentasodium triphosphate in an aqueous liquid abrasive cleaning composition containing a mixture of a synthetic anionic detergent and a soap is replaced by another water-soluble inorganic and/or organic salt which is not a phosphate, the wetting properties of the resulting product are ~ignificantly impaired.
8y wetting is meant that if an object ~hich has been cleaned with the liquid aqueous abrasive cleaner is subsequently rinsed with water, the water should spread out over the surface of the object as a film instead of droplets. On drying the object, the latter may cause an unsightly spotty appearance of the surface of the object.
~e have now found that we -an significantly improve the wetting properties of the above-disc~ssed liquid abrasive cleaning compositions which contain a mixture of an anionic synthetic detergent and a soap and which are free from phosphates, by including therein from 35 0.01-0.5~ by weight of a polymer which is polyacrylate or poly(meth)acrylate having a molecular weight of between 500 and 3,000-C 7101 (R) The choice of the type of polymer, the molecular weight o~ the polymer and the relative amount of the polymer to be used wa~ found to be critical. Thus, the type of polymer to be used i~ a polyacrylate or poly(meth)acrylate Other acrylic acid-containing (co)poly~ers or cro~s-linked polyacrylates are not suitable aq they give unsati~factory product~. Equally, polymer~ having a molecular weight out~ide the above-identified range are not ~uitable. Furthermore, if the polymer is used in an amount outside the above-identified level, unqatisfactory products are obtained.
The molecular weight preferably ranges from 1,000 to 2,000, and the level at which it is u~ed preferably ranges from 0.05-0.23~ by weight of the final composition.
The liquid aqueous abra~ive cleaning composition of the invention contains in general from 0.5-15% by weight, and preferably from 1-5~ by weight of the anionic synthetic detergent. The ~oap is present in an amount of from 0.~5-5~ by weight, preferably from 0.5-3% by weight.
It is often desirable to include al~o a nonionic or zwitterionic deterqent material in the aqueous medium in an amount of from 0.3-7%, preferably fro~ 0.5-5% by weight. Suitable exampleq of nonionic detergents are water-soluble condensation products of ethylene oxide and/or propylene oxide with linear primary or secondary C8-Cl~ alcohols, with C8-C18 fatty acid amides or fatty acid alkylolamides (both mono- and diamides), with Cg-Cl8 alkyl phenols and so on. The alkoxylated C8-Cla fatty acid mono- and dialkylolamides ~hould contain more than one alkylene oxide unit: for example, they ~hould be condensed with e.g. 2-S moles of alkylene oxide such as ethylene C 7101 (R) oxide. Fatty acid mono- or dialkylolamides in which the fatty acid radical contains 10-16 carbon atoms are also suitable nonionic , ~uch a~ for in~tance coco fatty acid mono- or diethanolamide.
Suitable zwitterionic detergents are trialkyl amine oxides having one long alkyl chain (C~-Cl8) and two short (Cl-C4) alkyl chains; betaines and sulphobetaines.
It is highly desirable that the liquid medium should exhibit 3ingham plastic characteriqtics, thu~ forming a stable suspending medium for the mineral abr~ive. Such media using the above-mentioned surfactants, po~sibly lS in combination with other surfactants, are de~cribed in British patent specifications l l67 597, l 181 607, l 262 280, l 303 810, l 308 l90 and l 418 671.
As indicated above, as a further essential component of the suspending medium, one or more organic or inorganic salts (i.e. electrolytes) are included, which must no~ be of ths phosphate type.
Suitable electrolytes are selected from the group consisting of alkali metal and ammonium salts of citric, carbonic, sulphuric, hydrochloric, succinic, adipic and glutaric acids.
Preferred electrolytes are the alkali metal salts of citric and carbonic acid, such as sodium citrate, sodium carbonate and sodium bicarbonate. The level of electrolyte depends on the particular ~urfactant system of choice and in general ranges from 0.5-25~ by weight, preferably from 1-7% by weight.
The compositions of the present invention optionally include a bleaching agent of the chlorine-releasing type, such as sodium hypochlorite and isocyanurate.
C 7101 (R) Other adjuncts fo~ liquid abrasive cled~er~ may be included, ~uch as colouring agent~, perfume~, fluoreqcers, hydrotropes, ~oil-su~pending agent~, enzymeq, opacifiers, germicide~, humectant~, Ptc.
Suitable for use as the abrasive material in the compo~itions of the invention are both natural and synthetic mineral abra~ive~, for example dolomite, precipitated calcium carbonate (aragonite), feldspar, alumina, qilica, abrasives such as quartz and quartzite: and preferably an abrasive material i~ uqed with a hardness on Moh'q scale of from 1 to 4.
Particularly suitable is calcite, for instance limestone, chalk or marble such a~ tho~e forms of calcite referred to in the British Patent 1 345 119. In general, the average particle size of the abrasive materials ranges from 1-70, usually 1-60, preferably 1-50 micrometers.
The mineral abrasive is included in an amount of from 25-70% by weight of the composition, preferably of from 45-55% by weight.
The invention will further be described by the following Examples, in which quantities are expressed by percentages by weight of the total composition unless otherwise indicated.
The following Examples set out a number of formulations of liquid abrasive cleaners. Some exemplify the invention.
Others are comparative. Where appropriate unsatisfactory properties are noted.
Each formulation was assessed for a "wetting score". This was on a scale ranging from O = bad wetting to 5 = good wetting. The score was asseæsed by a panel of 3 judges, who assessed the wet surface of a stainless ste 1 sink which had been cleaned with the liquid abrasive cleaning composition and subsequently rinsed with water.
Thereafter the steel surface was wetted with a sponge and the water-film was then assessed.
8 13105~
o U U~ o o o o o ~,~
O ~ I` U- U~ O O
~ ~ o ~Y o ,- o o o o U~ U~ o o o o o ~ ,~ ~ r~ O ~ o u~
~ o ~ o o o ~ ~
o U~ o o o o o ~ JJ
o ~ U~ o ~ o ~
o ~ o o o o ~ U
o ,-7 , , o U-,~ ~ o o o ,.
O U) O O O O O ~ r ~ _1 o ~-~ o o o o ~ 3 O 1-~ 0 0 0 0 0 ~ r ~ o ~ o o o ~ ~r u~ O Q
? _ ^ ~ ~
V 1 ~ ) ~ U O
~~ O ~ ~ ~ ~ r~ ~ o va~ ~, ~ ~ V o v U ~ ~
0~ _ u ~ u ~ r r r ~
-- u ~ ~ ~ Q ~ r ~ r U .~ 3 ~ 3 3 '~:1 3~ ~ '~ ~ ~ V - ~D O ~ '~
C o ~ U ~1 ~ O ;~ U
U x L~ ~ h U
V ~ ~ ~ V ~
D ~ C J v u 5 ~ O S o tn ;
~ ~ u o m - _ e ~
u _ ~ O a~ v c 11~ a x V u V x S U a~ o'~ V
'~ ) h v ~c ,~ ~ _~ 5 E E u~
1 0 0 C L~ v .L)~J aJ C 1~0 ~ 3 a~ U :) ~ U a`
Z r~ ~J O h ~ v S ~ h ~1 l vc ~ ~ D a E L4 ~ D ~ o h ~ ~ O ~ :~ 0 3 :~: ~~ a ~ u ~ 3 ~ h1~ 0 ~ O C ~-~ U
~ ~ o ~ ~ ~ ~ o ~ ~ ~ o c~ v 0 ~o 3~ u ~ ~ u o ~ 3~ :~ o ~ a~ _1 ~ U
~1 t~ E O ~ n a) O ~/ U ~:\ E ~ :1 _~ E~I E E ~ ~ e ~ c U ~ ~ ~ ~ Yo E c O
E ~~ U ~ ~ 0 U -~ O U
n~ ~~ v x o,- o o o o o 0 a~ ~ o o o ~) C 7101 (R) Examples 0 and P
The following formulations were also te~ted as regard~
their wetting characteristics:
S o P
Laurydimethylamine oxide 1.75 1.75 Sodium Cl4-C17 alkane~ulphonate 1.75 1.75 Potas~ium ~oap of coconut fatty acids 0.43 0.43 Sodium carbonate 4.00 4.00 10 Calcite (average particle size50.00 50.00 15 micrometer~) Sodium hypochlorite 1.50 1.50 ?erfume 0.30 0.30 Sodium polyacrylate, - o.og molecular weight 1,200 Wetting score 0 5 In the various Examples, a good wetting score was obtained with formulation A which contained tripolyphosphate, formulations D, F, G and H which gave products with unsatisfactory properties, and formulations E, J to N and P which embody this invention.
LIQUID ABRASIYE CLEANING COMPOSITlON
~he present invention relates to a liquid aqueous abra~ive cleaning composition with improved wetting 2roperties.
Liquid aqueous abrasive cleaning compo~itions have been known in the art for many yearq. They are mainly u~ed for cleaning of hard surfaces to facilitate the removal of ~tubborn soil~s, greases, burnt-in materials which are far less easily removed with abrasive-free cleani-,g compositions. Usually, such liquid aqueous abrasive cleaning compositions consist of an aqueous suspending medium in which particulate abrasive material is stably suspended. The aqueous suspending medium usually consists of an aqueous solution of an anionic deter~ent or a mixture thereof with a nonionic detergent, and a water-soluble organic and/or inorganic salt in amounts such that the agueous solution obtains suspending properties. Commonly, the water-soluble salt is a phosphate such as pentasodium triphosphate, but in view of the overall trend in the detergent industry to reduce the phosphorus level in detergent compositions in view of the eutrophication problem, recently there have been proposals to reduce the phosphorus level in liquid aqueous abrasive cleaning compositions a~s well, or even to suppress the use of pentasodium trlphosphate in such compositions altogether.
~hus, we have proposed in our published European patent application 0 21~ 540 an aqueou~ liquid abrasive cleaning composition which is free from phosphates, and instead contains an electrolyte selected from the group consisting of alkali metal and ammonium salt3 of citric, carbonic, hydrochloric, succinic, adipic and glutaric acid.
C 7101 (R) 2 13105~2 In many liquid aqueo~s abcasive cleaning compo~itions the anionic detergent usually comprise~ a mixture of a synthetic anionic detesgent ~uch as the al~ali metal, ammonium and alkanolamine salts of C12-C18 branched or straight chain alkylbenzene~ulphonic acids, of C12-C18 branched or ~traight chain alkanesulphonic acids, of C12-C18 alkylmono~ulphuric acid esters, of C6-C18 dialkylmono- and di~ulpho~uccinic acid ters~ of C10-C18 alkyl (EO)l-10 monosulphuric acid esters, together with an alkali ~etal, a~monium or alkanolamine salt of a C10-C24 fatty ~cid (hereinafter referred to as "soap").
However, we have found that, if the pentasodium triphosphate in an aqueous liquid abrasive cleaning composition containing a mixture of a synthetic anionic detergent and a soap is replaced by another water-soluble inorganic and/or organic salt which is not a phosphate, the wetting properties of the resulting product are ~ignificantly impaired.
8y wetting is meant that if an object ~hich has been cleaned with the liquid aqueous abrasive cleaner is subsequently rinsed with water, the water should spread out over the surface of the object as a film instead of droplets. On drying the object, the latter may cause an unsightly spotty appearance of the surface of the object.
~e have now found that we -an significantly improve the wetting properties of the above-disc~ssed liquid abrasive cleaning compositions which contain a mixture of an anionic synthetic detergent and a soap and which are free from phosphates, by including therein from 35 0.01-0.5~ by weight of a polymer which is polyacrylate or poly(meth)acrylate having a molecular weight of between 500 and 3,000-C 7101 (R) The choice of the type of polymer, the molecular weight o~ the polymer and the relative amount of the polymer to be used wa~ found to be critical. Thus, the type of polymer to be used i~ a polyacrylate or poly(meth)acrylate Other acrylic acid-containing (co)poly~ers or cro~s-linked polyacrylates are not suitable aq they give unsati~factory product~. Equally, polymer~ having a molecular weight out~ide the above-identified range are not ~uitable. Furthermore, if the polymer is used in an amount outside the above-identified level, unqatisfactory products are obtained.
The molecular weight preferably ranges from 1,000 to 2,000, and the level at which it is u~ed preferably ranges from 0.05-0.23~ by weight of the final composition.
The liquid aqueous abra~ive cleaning composition of the invention contains in general from 0.5-15% by weight, and preferably from 1-5~ by weight of the anionic synthetic detergent. The ~oap is present in an amount of from 0.~5-5~ by weight, preferably from 0.5-3% by weight.
It is often desirable to include al~o a nonionic or zwitterionic deterqent material in the aqueous medium in an amount of from 0.3-7%, preferably fro~ 0.5-5% by weight. Suitable exampleq of nonionic detergents are water-soluble condensation products of ethylene oxide and/or propylene oxide with linear primary or secondary C8-Cl~ alcohols, with C8-C18 fatty acid amides or fatty acid alkylolamides (both mono- and diamides), with Cg-Cl8 alkyl phenols and so on. The alkoxylated C8-Cla fatty acid mono- and dialkylolamides ~hould contain more than one alkylene oxide unit: for example, they ~hould be condensed with e.g. 2-S moles of alkylene oxide such as ethylene C 7101 (R) oxide. Fatty acid mono- or dialkylolamides in which the fatty acid radical contains 10-16 carbon atoms are also suitable nonionic , ~uch a~ for in~tance coco fatty acid mono- or diethanolamide.
Suitable zwitterionic detergents are trialkyl amine oxides having one long alkyl chain (C~-Cl8) and two short (Cl-C4) alkyl chains; betaines and sulphobetaines.
It is highly desirable that the liquid medium should exhibit 3ingham plastic characteriqtics, thu~ forming a stable suspending medium for the mineral abr~ive. Such media using the above-mentioned surfactants, po~sibly lS in combination with other surfactants, are de~cribed in British patent specifications l l67 597, l 181 607, l 262 280, l 303 810, l 308 l90 and l 418 671.
As indicated above, as a further essential component of the suspending medium, one or more organic or inorganic salts (i.e. electrolytes) are included, which must no~ be of ths phosphate type.
Suitable electrolytes are selected from the group consisting of alkali metal and ammonium salts of citric, carbonic, sulphuric, hydrochloric, succinic, adipic and glutaric acids.
Preferred electrolytes are the alkali metal salts of citric and carbonic acid, such as sodium citrate, sodium carbonate and sodium bicarbonate. The level of electrolyte depends on the particular ~urfactant system of choice and in general ranges from 0.5-25~ by weight, preferably from 1-7% by weight.
The compositions of the present invention optionally include a bleaching agent of the chlorine-releasing type, such as sodium hypochlorite and isocyanurate.
C 7101 (R) Other adjuncts fo~ liquid abrasive cled~er~ may be included, ~uch as colouring agent~, perfume~, fluoreqcers, hydrotropes, ~oil-su~pending agent~, enzymeq, opacifiers, germicide~, humectant~, Ptc.
Suitable for use as the abrasive material in the compo~itions of the invention are both natural and synthetic mineral abra~ive~, for example dolomite, precipitated calcium carbonate (aragonite), feldspar, alumina, qilica, abrasives such as quartz and quartzite: and preferably an abrasive material i~ uqed with a hardness on Moh'q scale of from 1 to 4.
Particularly suitable is calcite, for instance limestone, chalk or marble such a~ tho~e forms of calcite referred to in the British Patent 1 345 119. In general, the average particle size of the abrasive materials ranges from 1-70, usually 1-60, preferably 1-50 micrometers.
The mineral abrasive is included in an amount of from 25-70% by weight of the composition, preferably of from 45-55% by weight.
The invention will further be described by the following Examples, in which quantities are expressed by percentages by weight of the total composition unless otherwise indicated.
The following Examples set out a number of formulations of liquid abrasive cleaners. Some exemplify the invention.
Others are comparative. Where appropriate unsatisfactory properties are noted.
Each formulation was assessed for a "wetting score". This was on a scale ranging from O = bad wetting to 5 = good wetting. The score was asseæsed by a panel of 3 judges, who assessed the wet surface of a stainless ste 1 sink which had been cleaned with the liquid abrasive cleaning composition and subsequently rinsed with water.
Thereafter the steel surface was wetted with a sponge and the water-film was then assessed.
8 13105~
o U U~ o o o o o ~,~
O ~ I` U- U~ O O
~ ~ o ~Y o ,- o o o o U~ U~ o o o o o ~ ,~ ~ r~ O ~ o u~
~ o ~ o o o ~ ~
o U~ o o o o o ~ JJ
o ~ U~ o ~ o ~
o ~ o o o o ~ U
o ,-7 , , o U-,~ ~ o o o ,.
O U) O O O O O ~ r ~ _1 o ~-~ o o o o ~ 3 O 1-~ 0 0 0 0 0 ~ r ~ o ~ o o o ~ ~r u~ O Q
? _ ^ ~ ~
V 1 ~ ) ~ U O
~~ O ~ ~ ~ ~ r~ ~ o va~ ~, ~ ~ V o v U ~ ~
0~ _ u ~ u ~ r r r ~
-- u ~ ~ ~ Q ~ r ~ r U .~ 3 ~ 3 3 '~:1 3~ ~ '~ ~ ~ V - ~D O ~ '~
C o ~ U ~1 ~ O ;~ U
U x L~ ~ h U
V ~ ~ ~ V ~
D ~ C J v u 5 ~ O S o tn ;
~ ~ u o m - _ e ~
u _ ~ O a~ v c 11~ a x V u V x S U a~ o'~ V
'~ ) h v ~c ,~ ~ _~ 5 E E u~
1 0 0 C L~ v .L)~J aJ C 1~0 ~ 3 a~ U :) ~ U a`
Z r~ ~J O h ~ v S ~ h ~1 l vc ~ ~ D a E L4 ~ D ~ o h ~ ~ O ~ :~ 0 3 :~: ~~ a ~ u ~ 3 ~ h1~ 0 ~ O C ~-~ U
~ ~ o ~ ~ ~ ~ o ~ ~ ~ o c~ v 0 ~o 3~ u ~ ~ u o ~ 3~ :~ o ~ a~ _1 ~ U
~1 t~ E O ~ n a) O ~/ U ~:\ E ~ :1 _~ E~I E E ~ ~ e ~ c U ~ ~ ~ ~ Yo E c O
E ~~ U ~ ~ 0 U -~ O U
n~ ~~ v x o,- o o o o o 0 a~ ~ o o o ~) C 7101 (R) Examples 0 and P
The following formulations were also te~ted as regard~
their wetting characteristics:
S o P
Laurydimethylamine oxide 1.75 1.75 Sodium Cl4-C17 alkane~ulphonate 1.75 1.75 Potas~ium ~oap of coconut fatty acids 0.43 0.43 Sodium carbonate 4.00 4.00 10 Calcite (average particle size50.00 50.00 15 micrometer~) Sodium hypochlorite 1.50 1.50 ?erfume 0.30 0.30 Sodium polyacrylate, - o.og molecular weight 1,200 Wetting score 0 5 In the various Examples, a good wetting score was obtained with formulation A which contained tripolyphosphate, formulations D, F, G and H which gave products with unsatisfactory properties, and formulations E, J to N and P which embody this invention.
Claims (10)
1. In an aqueous liquid cleaning composition of the type containing an aqueous suspending medium and a particulate abrasive material stably suspended therein, the suspending medium including an aqueous solution of a mixture of synthetic anionic detergent, soap and water-soluble organic and/or inorganic salt which is other than phosphate, the improvement comprising the presence of from 0.01 to 0.5% by weight of a polyacrylate or polymethacrylate having a molecular weight of between 500 and 3000.
2. A composition as claimed in claim 1 wherein the molecular weight of the polyacrylate or polymethacrylate is in the range from 1000 to 2000.
3. A composition as claimed in claim 1 wherein the amount of the polyacrylate or polymethacrylate is from 0.05 to 0.23% by weight of the composition.
4. A composition as claimed in claim 1 which contains 0.5 to 15% by weight of the said synthetic anionic detergent;
0.25 to 5% by weight of the said soap, which soap is an alkali metal, ammonium or alkanolamine salt of a C10 to C24 fatty acid;
0.5 to 25% by weight of the said salt; and 25 to 70% of said particulate abrasive.
0.25 to 5% by weight of the said soap, which soap is an alkali metal, ammonium or alkanolamine salt of a C10 to C24 fatty acid;
0.5 to 25% by weight of the said salt; and 25 to 70% of said particulate abrasive.
5. A composition as claimed in claim 1 wherein the said synthetic anionic detergent is selected from alkali metal, ammonium and alkanolamine salts of C12-C18 branched or straight chain alkylbenzenesulphonic acids, C12-C18 branched or straight chain alkanes-liphonic acids, C12-C18 alkylmonosulphuric acid esters, C6-C18 dialkylmono- and disulphosuccinic acid esters and C10-C18 alkyl (EO) 1-10 monosulphuric acid esters.
6. A composition as claimed in claim 1 wherein the said organic or inorganic salt is selected from alkali metal and ammonium salts of citric, carbonic, sulphuric, hydrochloric, succinic, adipic and glutaric acids.
7. A composition as claimed in claim 1 wherein the said organic or inorganic salt is selected from alkali metal salts of citric and carbonic acids.
8. A composition as claimed in claim 1 additionally containing from 0.3 to 7% by weight of zwitterionic or nonionic detergent selected from condensation products of ethylene oxide and/or propylene oxide, fatty acid mono- or dialkylolamides, trialkyl amine oxides having one C8-C18 alkyl chain and two C1-C4 alkyl chains, betaines and sulphobetaines.
9. A composition as claimed in claim 1 additionally containing a chlorine-releasing bleaching agent.
10. A composition as claimed in claim 1 wherein the abrasive material is a mineral abrasive having a hardness on Moh's scale of 1 to 4 and a particle size from 1 to 70 micrometers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000587957A CA1310562C (en) | 1987-07-31 | 1989-01-11 | Liquid abrasive cleaning composition |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB878718219A GB8718219D0 (en) | 1987-07-31 | 1987-07-31 | Liquid abrasive cleaning composition |
| CA000587957A CA1310562C (en) | 1987-07-31 | 1989-01-11 | Liquid abrasive cleaning composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1310562C true CA1310562C (en) | 1992-11-24 |
Family
ID=25672370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000587957A Expired - Fee Related CA1310562C (en) | 1987-07-31 | 1989-01-11 | Liquid abrasive cleaning composition |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1310562C (en) |
-
1989
- 1989-01-11 CA CA000587957A patent/CA1310562C/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| MKLA | Lapsed |