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US4683072A Expired / Lapsed US ⏱️ 0.0 years remaining

Two-component cleaner and disinfectant tablet

Assignee: Henkel AG and Co KGaA
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Filing: 1985-11-12
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Granted: 1987-07-28
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Expires: 2005-11-12
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Abstract

Abstract A two-component tablet for cleaning and disinfecting toilet flush tanks which adhere to the tank and will not be washed away and/or decomposed comprising extruded component A consisting essentially of (a) 10 to 50% by weight of an alkylbenzene sulfonate, (b) 0 to 40% by weight of inorganic alkali metal salts, (c) 0 to 10% by weight of at least one plasticizer, (d) 5 to 25% by weight of at least one disintegration rate regulator selected from the group consisting of fatty acid ethanolamides, fatty acid diethanolamides and stearic acid, (e) 0 to 50% of a disinfectant selected from a chlorine releasing compound or an active oxygen containing compound or acid and (f) 0 to 30% by weight of a complexing agent with the sum of (e) and (f), being greater than 5% and component B consisting essentially of (a') 20 to 55% by weight of an alkylbenzene sulfonate, (b') 15 to 45% by weight of inorganic alkali metal salts, (c') 0 to 10% by weight of at least one plasticizer, (d') 5 to 25% by weight of at least one disintegration rate regulator selected from the group consisting of fatty acid ethanolamides, fatty acid diethanolamides and stearic acid, (e') 1 to 10% by weight of perfume and (f') 5 to 15% by weight of dye, the sum of (c') and (e') being not greater than 10%, component A and B occupying different portions of the final tablet.

Inventors

  • 👤 Bernd-Dieter Holdt
  • 👤 Ronald Menke
  • 👤 Gerd Praus
  • 👤 Petra Hasselbach

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 03:56
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/48; A; A61; A61L; A61L9/00; A61L9/015; A61L9/04; A61L9/05; C11D17/00; C11D17/0047; C11D17/0056; C11D3/395; C11D3/3955; C11D1/00; C11D1/02; C11D1/04; C11D1/12; C11D1/22; C11D1/38; C11D1/52; C11D1/523

Claims Analysis

Total Claims: 13
Claim 1
Independent Claim 231 words
A two-component cleaning and disinfecting tablet for urinals and toilet flush tanks comprising extruded component A consisting essentially of (a) 10 to 50% by weight of an alkylbenzene sulfonate, (b) 10 to 40% by weight of inorganic alkali metal salts, (c) 5 to 10% by weight of at least one plasticizer, (d) 5 to 25% by weight of at least one disintegration rate regulator selected from the group consisting of fatty acid ethanolamides, fatty acid diethanolamides and stearic acid, (e) 5 to 50% of disinfectant selected from an active oxygen containing peroxy compound, or acid and (f) 5 to 30% by weight of a complexing agent with the sum of (e) and (f) being greater than 5% by weight and extruded component B consisting essentially of (a') 20 to 55% by weight of an alkylbenzene sulfonate, (b') 15 to 45% by weight of inorganic alkali metal salts, (c') 2 to 10% by weight of at least one plasticizer, (d') 5 to 25% by weight of at least one distintegration rate regulator selected from the group consisting of fatty acid ethanolamides, fatty acid diethanolamides and stearic acid, (e') 1 to 10% by weight of perfume and (f') 5 to 15% by weight of dye, the sum of (c') and (e') being not greater than 10% by weight, components A and B being attached together and occupying different portions of the final tablet.
Claim 2
Dependent Claim 231 words
A two-component cleaning and disinfecting tablet for urinals and toilet flush tanks comprising extruded component A consisting essentially of (a) 10 to 50% by weight of an alkylbenzene sulfonate, (b) 10 to 40% by weight of inorganic alkali metal salts, (c) 5 to 10% by weight of at least one plasticizer, (d) 5 to 25% by weight of at least one disintegration rate regulator selected from the group consisting of fatty acid ethanolamides, fatty acid diethanolamides and stearic acid, (e) 5 to 50% of disinfectant selected from an active oxygen containing peroxy compound, or acid and (f) 5 to 30% by weight of a complexing agent with the sum of (e) and (f) being greater than 5% by weight and extruded component B consisting essentially of (a') 20 to 55% by weight of an alkylbenzene sulfonate, (b') 15 to 45% by weight of inorganic alkali metal salts, (c') 2 to 10% by weight of at least one plasticizer, (d') 5 to 25% by weight of at least one distintegration rate regulator selected from the group consisting of fatty acid ethanolamides, fatty acid diethanolamides and stearic acid, (e') 1 to 10% by weight of perfume and (f') 5 to 15% by weight of dye, the sum of (c') and (e') being not greater than 10% by weight, components A and B being attached together and occupying different portions of the final tablet.
Claim 3
Dependent Claim 36 words
A tablet of claim 1 wherein one component contains an active oxygen containing peroxy compound and complexing agents and the other component contains at least one substance selected from the group consisting of dyes and fragrance.
Claim 4
Dependent Claim 86 words
A tablet of claim 2 wherein component A consisting essentially of: ______________________________________ Weight % ______________________________________ (a) alkylbenzene sulfonate 10-40 (b) inorganic alkali metal salts 10-40 (c) plasticizers 5-10 (d) disintegration rate regulators 10-25 (e) active oxygen containing peroxy 5-50 compound ______________________________________ and component B consisting essentially of: ______________________________________ (a') alkylbenzene sulfonate 20-40 (b') inorganic alkali metal salts 15-45 (c') plasticizers 2-10 (d') disintegration rate regulators 10-25 (e') perfume 1-10 (f') dye 5-10 ______________________________________ wherein the sum of (c') and (e') does not exceed 10 weight %.
Claim 5
Dependent Claim 81 words
A tablet of claim 1 wherein component A consisting essentially of ______________________________________ Weight % ______________________________________ (a) alkylbenzene sulfonate 30-50 (b) inorganic alkali metal salts 20-35 (c) plasticizers 5-10 (d) disintegration rate regulators 5-15 (f) complexing agent 5-30 ______________________________________ and component B consisting essentially of ______________________________________ (a') alkylbenzene sulfonate 30-50 (b') inorganic alkali metal salts 30-45 (c') plasticizers 0-10 (d') disintegration rate regulators 10-15 (e') perfume 1-10 (f') dye 5-15 ______________________________________ wherein the sum of (c') and (e') does not exceed 10%.
Claim 6
Dependent Claim 85 words
A tablet of claim 1 wherein component A consisting essentially of ______________________________________ Weight % ______________________________________ (a) alkylbenzene sulfonate 30-50 (b) inorganic alkali metal salts 5-40 (c) plasticizers 5-10 (d) disintegration rate regulators 10-25 (e) acid 10-50 ______________________________________ and component B consisting essentially of ______________________________________ Weight % ______________________________________ (a') alkylbenzene sulfonate 40-55 (b') inorganic alkali metal salts 15-30 (c') plasticizers 5-10 (d') disintegration rate regulators 10-15 (e') perfume 1-10 (f') dye 5-15 ______________________________________ wherein the sum of (c') and (e') does not exceed 10 weight %.
Claim 7
Dependent Claim 49 words
A method of preparing a tablet of claim 1 comprising separately admixing the ingredients of components A and B and separately extruding the components into strips or rods, combining the strips or rods of components A and B into a single element and cutting the said element into pieces.
Claim 8
Dependent Claim 26 words
A method of cleaning and disinfecting urinals and toilet flush tanks comprising placing in a toilet flush tank or an urinal a tablet of claim 1.
Claim 9
Dependent Claim 26 words
A tablet of claim 1 wherein said peroxy compound is selected from the group consisting of sodium perborate mono- and tetra-hydrate, potassium peroxodisulfate, and sodium peroxodisulfate.
Claim 10
Dependent Claim 29 words
A tablet of claim 1 wherein said acid in component A is selected from the group consisting of amidosulfonic acid, sodium bisulfate, citric acid, phosphoric acid, and mixtures thereof.
Claim 11
Dependent Claim 29 words
A tablet of claim 1 wherein said complexing agent in component A is selected from the group consisting of ethylenediamine tetraacetic acid, nitrilotriacetic acid, polycarboxylic acid, and mixtures thereof.
Claim 12
Dependent Claim 205 words
A two-component cleaning and disinfecting tablet for urinals and toilet flush tanks comprising extruded component A consisting essentially of (a) 10 to 40% by weighto of an alkylbenzene sulfonate, (b) 10 to 40% by weight of inorganic alkali metal salts, (c) 5 to 10% by weight of at least one plasticizer, (d) 10 to 25% by weight of at least one disintegration rate regulator selected from the group consisting of fatty acid ethanolamides, fatty acid diethanolamides and stearic acid, and (e) 5 to 50% by weight of an active oxygen containing peroxy compound and extruded component B consisting essentially of (a') 20 to 40% by weight of an alkylbenzene sulfonate, (b') 15 to 45% by weight of inorganic alkali metal salts, (c') 2 to 10% by weight of at least one plasticizer, (d') 10 to 25% by weight of at least one disintegration rate regulator selected from the group consisting of fatty acid ethanolamides, fatty acid diethanolamides and stearic acid, (e') 1 to 10% by weight of perfume and (f') 5 to 10% by weight of dye, the sum of (c') and (e') being no greater than 10% by weight, components A and B being attached together and occupying different portions of the final tablet.
Claim 13
Dependent Claim 205 words
A two-component cleaning and disinfecting tablet for urinals and toilet flush tanks comprising extruded component A consisting essentially of (a) 10 to 40% by weighto of an alkylbenzene sulfonate, (b) 10 to 40% by weight of inorganic alkali metal salts, (c) 5 to 10% by weight of at least one plasticizer, (d) 10 to 25% by weight of at least one disintegration rate regulator selected from the group consisting of fatty acid ethanolamides, fatty acid diethanolamides and stearic acid, and (e) 5 to 50% by weight of an active oxygen containing peroxy compound and extruded component B consisting essentially of (a') 20 to 40% by weight of an alkylbenzene sulfonate, (b') 15 to 45% by weight of inorganic alkali metal salts, (c') 2 to 10% by weight of at least one plasticizer, (d') 10 to 25% by weight of at least one disintegration rate regulator selected from the group consisting of fatty acid ethanolamides, fatty acid diethanolamides and stearic acid, (e') 1 to 10% by weight of perfume and (f') 5 to 10% by weight of dye, the sum of (c') and (e') being no greater than 10% by weight, components A and B being attached together and occupying different portions of the final tablet.

References Cited (Backward Citations)

US3294692A Cited
US4269723A Cited
US4200606A Cited
EP0013043A1 Cited
EP0055100B1 Cited
US4578207A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1990-07-27 1991-01-26 1991-07-28 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1994-07-27 1995-01-26 1995-07-28 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1998-07-27 1999-01-26 1999-07-28 $7700.00 Window Closed / Lapsed

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