US5076955A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acidic cleaning agent with a scouring action
Assignee: Reckitt Benckiser NV
•
Filing: 1990-03-15
•
Granted: 1991-12-31
•
Expires: 2010-03-15
Abstract
Abstract The present invention provides a composition and a method for producing a composition that is an acidic, viscous, stable cleaning agent with a scouring action. The cleaning agent comprises an anionic surfactant comprised of a linear alkylbenzenesulphonate or alkane sulphonate in an amount of 1 to 10% by weight; a non-ionic surfactant comprising a fatty alcohol oxyethylate in an amount of about 0.5 to 2% by weight; fatty acids with a carbon chain length of C12-C18 in an amount of about 0.1 to 0.5% by weight; mono- or sesquiterpenes or mixtures thereof in an amount of 0-2% by weight; a silicone in an amount of about 0.5 to 2% by weight; scouring agents in the form of alumina mixtures of various particle sizes in an amount of about 20 to 60% by weight; acids for the adjustment of a pH value of 2.5 to 4 in the form of a mixture of citric acid and amidosulphonic acid; and water, perfume oil, coloring materials added to provide a total of 100% by weight.
Inventors
- 👤 Wolfgang Ussat
- 👤 Bernhard Waessa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:38
CPC Classifications
C; C11; C11D; C11D17/00; C11D17/0008; C11D17/0013; C11D1/00; C11D1/66; C11D1/83; C11D1/831; C11D3/00; C11D3/16; C11D3/20; C11D3/2075; C11D3/2079
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
150 words
An acidic cleaning agent comprising: (a) from about 1 to 10% by weight of a linear alkylbenzenesulphonate or alkane sulphonate; (b) from about 0.5 to 2% by weight of a fatty alcohol oxyethylate; (c) from about 0.1 to 0.5% by weight of at least one fatty acids with a carbon chain length of C 12 -C 18 ; (d) from about 0 to 2% by weight of a monoterpene or sesquiterpene or a mixture thereof; (e) from about 0.5 to 2% by weight of a silicone; (f) from about 20 to 60% by weight of a scouring agent in the form of alumina mixtures of various particle sizes; (g) acid for the adjustment of a pH value of from 2.5 to 4 in the form of a mixture of citric acid and amidosulphonic acid; and water, perfume oil, and coloring material added to provide a total of 100% by weight.
Claim 2
Dependent Claim
150 words
An acidic cleaning agent comprising: (a) from about 1 to 10% by weight of a linear alkylbenzenesulphonate or alkane sulphonate; (b) from about 0.5 to 2% by weight of a fatty alcohol oxyethylate; (c) from about 0.1 to 0.5% by weight of at least one fatty acids with a carbon chain length of C 12 -C 18 ; (d) from about 0 to 2% by weight of a monoterpene or sesquiterpene or a mixture thereof; (e) from about 0.5 to 2% by weight of a silicone; (f) from about 20 to 60% by weight of a scouring agent in the form of alumina mixtures of various particle sizes; (g) acid for the adjustment of a pH value of from 2.5 to 4 in the form of a mixture of citric acid and amidosulphonic acid; and water, perfume oil, and coloring material added to provide a total of 100% by weight.
Claim 3
Dependent Claim
19 words
A cleaning agent according to claim 1, comprising about 4% by weight of said linear alkylbenzenesulphonate or alkane suphonate.
Claim 4
Dependent Claim
17 words
A cleaning agent according to claim 1, comprising about 1% by weight of said fatty alcohol oxyethylate.
Claim 5
Dependent Claim
19 words
A cleaning agent according to claim 1, comprising about 0.2% by weight of said at least one fatty acid.
Claim 6
Dependent Claim
25 words
A cleaning agent according to claim 1, wherein component (d) is a terpene mixture comprising terpineol and in an amount of about 1.0% by weight.
Claim 7
Dependent Claim
13 words
A cleaning agent according to claim 1, wherein said silicone comprises a polymethylsiloxane.
Claim 8
Dependent Claim
24 words
A cleaning agent according to claim 6, wherein said polymethylsiloxane comprises dimethyl siloxane and is present in an amount of about 1% by weight.
Claim 9
Dependent Claim
46 words
A cleaning agent according to claim 1, wherein said alumina mixture comprises polishing alumina having a particle diameter of at least 63 μm-a maximum of 5%, and a bulk density of 800 to 950 g/liter and is present in an amount of about 27% by weight.
Claim 10
Dependent Claim
46 words
A cleaning agent according to claim 1, wherein said alumina mixture comprises polishing alumina having a particle diameter of less than 20 μm-a minimum of 95%, and a bulk density of 550 to 650 g/liter and is present in an amount of about 18% by weight.
Claim 11
Dependent Claim
35 words
A cleaning agent according to claim 1, wherein said citric acid is provided in an amount of about 2% by weight and said amidosulphonic acid is present in an amount of about 2% by weight.
Claim 12
Dependent Claim
20 words
A cleaning agent according to claim 1, having a viscosity in the range of from about 7000 to 9000 mPas.
Claim 13
Dependent Claim
20 words
A cleaning agent according to claim 1, having a viscosity in the range of from about 7500 to 8500 mPas.
Claim 14
Dependent Claim
17 words
A cleaning agent according to claim 1, having a pH value of from about 3 to 3.5.
Claim 15
Dependent Claim
24 words
A method of cleaning a hard surface, comprising the step of applying an aqueous mixture containing a cleaning agent as defined by claim 1.
Claim 16
Dependent Claim
26 words
A method according to claim 14, wherein said hard surface is selected from the group consisting of a metal, glass, a synthetic material and a ceramic.
Claim 17
Dependent Claim
13 words
A method according to claim 15, wherein said ceramic is a glass ceramic.
Claim 18
Dependent Claim
191 words
A process for the production of an acidic, viscous, stable cleaning agent with a scouring action, comprising the steps of (A) producing a pre-mixture by successive introduction into water of aqueous sodium hydroxide solution, sodium carbonate, from about 0.1 to 0.5% by weight of one or more fatty acids with a carbon chain length of C 12 -C 18 , a coloring material, from about 1 to 10% by weight of a linear alkylbenzenesulphonate or alkane sulphonate, from about 0.5 to 2% by weight of a fatty alcohol oxyethylate, from about 0 to 2% by weight of a monoterpene or sesquiterpene or a mixture thereof, and a perfume oil, (B) adjusting a pH of said premixture to a value of about 10.3; (C) adding sequentially to said premixture from about 20 to 60% by weight of a scouring agent in the form of alumina mixtures of various particle sizes and from about 0.5 to 2% by weight of a silicone by vigorous stirring to form a mixture; and (D) adding citric acid and amidosulphonic acid to said mixture in an amount sufficient to produce a pH value of 2.5 to 4.
Claim 19
Dependent Claim
191 words
A process for the production of an acidic, viscous, stable cleaning agent with a scouring action, comprising the steps of (A) producing a pre-mixture by successive introduction into water of aqueous sodium hydroxide solution, sodium carbonate, from about 0.1 to 0.5% by weight of one or more fatty acids with a carbon chain length of C 12 -C 18 , a coloring material, from about 1 to 10% by weight of a linear alkylbenzenesulphonate or alkane sulphonate, from about 0.5 to 2% by weight of a fatty alcohol oxyethylate, from about 0 to 2% by weight of a monoterpene or sesquiterpene or a mixture thereof, and a perfume oil, (B) adjusting a pH of said premixture to a value of about 10.3; (C) adding sequentially to said premixture from about 20 to 60% by weight of a scouring agent in the form of alumina mixtures of various particle sizes and from about 0.5 to 2% by weight of a silicone by vigorous stirring to form a mixture; and (D) adding citric acid and amidosulphonic acid to said mixture in an amount sufficient to produce a pH value of 2.5 to 4.
Claim 20
Dependent Claim
25 words
A process according to claim 17, wherein the citric acid and amidosulphonic acid are introduced until a pH value of 3 to 3.5 is achieved.
Claim 21
Dependent Claim
19 words
A process according to claim 18, wherein said citric acid and said alkylbenzenesulphonic acid are added into said pre-mixture.
Claim 22
Dependent Claim
21 words
A cleaning agent according to claim 1, wherein said amidosulphonic acid and said citric acid are each present in substantial amounts.
Claim 23
Dependent Claim
22 words
A cleaning agent according to claim 20, wherein said amidosulphonic acid and said citric acid are each present in substantially equal amounts.
Claim 24
Dependent Claim
24 words
A cleaning agent according to claim 1, wherein said citric acid is present in an amount such that said agent displays enhanced lime removal.
Claim 25
Dependent Claim
22 words
A process according to claim 17, wherein in step (D) said amidosulphonic acid and said citric acid are added in substantial amounts.
Claim 26
Dependent Claim
23 words
A process according to claim 23, wherein in step (D) said amidosulphonic acid and said citric acid are added in substantially equal amounts.
Claim 27
Dependent Claim
26 words
A process according to claim 17, wherein in step (D) said citric acid is added in an amount such that said agent displays enhanced lime removal.
References Cited (Backward Citations)
US4124525A
Cited
US4101437A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-12-30 | 1995-07-01 | 1995-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-12-30 | 1999-07-01 | 1999-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-12-30 | 2003-07-01 | 2003-12-31 | $7700.00 | Window Closed / Lapsed |