Abstract: A detergent composition containing in combination(a) a detergent builder system containing a carboxylate or polycarboxylate builder and having a major proportion by weight of non-carbonate builder compound;(b) an organo diphosphonic acid or its salts or complexes or any mixture thereof; and(c) an organic polymer containing acrylic acid or its salts, having an average molecular weight of less than 15,000.
Type:
Grant
Filed:
December 20, 1996
Date of Patent:
September 1, 1998
Assignee:
The Procter & Gamble Company
Inventors:
Michael Crombie Addison, Lynda Anne Jones, Rhona Alexandra Knox
Abstract: There is provided a detergent composition comprising lipoxidase enzymes. The lipoxidase enzyme is preferably incorporated into the composition at a level of from 0.0001% to 2% active enzymes by weight of the composition.
Type:
Grant
Filed:
February 4, 1997
Date of Patent:
August 4, 1998
Assignee:
The Procter & Gamble Co.
Inventors:
Andre Baeck, Alfred Busch, Peter Robert Foley, Lynda Anne Jones, Kofi Ofosu-Asante
Abstract: Automatic dishwashing detergent compositions comprising a weight to weight ratio of calcium complexing component to carbonate source of at least 0.9 and having a pH between about 7 and about 11 are disclosed. The compositions exhibit enhanced filming performance, particularly preferred compositions additionally contain polymer dispersant and silicate.
Abstract: Automatic dishwashing detergent compositions comprising a carbonate source and a pH from about 5.0 to about 9.5 for enhanced filming performance are disclosed. Particularly preferred compositions contain polymer dispersant and silicate.
Abstract: A composition and method for inhibiting lead corrosion of fine tableware washed in automatic dishwashers is disclosed. The detergent composition comprises an aluminum-sequestrant complex formed by binding the aluminum by a sequestrant in a premix, which is then processed with other detergent components. The composition has a pH of less than about 10 and is substantially free of silicates.
Type:
Grant
Filed:
January 16, 1997
Date of Patent:
July 21, 1998
Assignee:
Lever Brothers Company
Inventors:
Petrus Andrianus Angevaare, Richard Gerald Gary
Abstract: A solid detergent composition and a method of using the composition in a machine dishwasher is described. The product contains a first layer having an oxygen bleaching system, a buffering system of a builder, and an enzyme. The first layer dissolves to deliver a pH of about 8.5 to about 11 in the wash water. A second layer includes an effective amount of an acidity agent selected from an inorganic acid, an organic acid and mixtures thereof, a continuous medium having a melting point in the range of from about 55.degree. C. to about 70.degree. C. and an anti-scaling agent. The second layer dissolves in wash water to deliver a pH of from about 6.5 to about 9.
Type:
Grant
Filed:
December 23, 1996
Date of Patent:
July 21, 1998
Assignee:
Lever Brothers Company, Division of Conopco, Inc.
Inventors:
Isaac Israel Secemski, David John Lang, John Richard Nicholson, Bozena Marianna Piatek
Abstract: An improved non-phosphate, peroxygen based machine dishwashing composition comprising a blend of nonionic surfactants, builders, non-chlorine bleach, bleach precursors, enzymes, polycarboxylate polymers and homopolymers of polyalkyleneoxide wherein spotting and filming are substantially minimized.
Abstract: Stable aqueous emulsions comprising dipicolinic acid or certain derivatives thereof and hydrophilic and hydrophobic nonionic surfactants are disclosed, as well as a process for preparing said compositions. The dipicolinic acid and derivatives thereof build viscosity in said compositions.
Abstract: An improved powdered non-phosphate, peroxygen based machine dishwashing compositions comprising a blend of nonionic surfactants, builders, non-chlorine bleach, bleach precursors, enzymes, polycarboxylate polymers and nonionic graft copolymers of vinyl acetate and polyalkyleneoxide wherein spotting and filming are substantially minimized.
Abstract: A warewashing composition for a machine dishwasher and a method of using it is described. The composition comprises effective amounts of an organic peroxy acid, and an amylase enzyme which, when incubated at 55.degree. C. in a solution of 2 mM sodium citrate, 1 mM epsilon phthalimidoperoxyhexanoic acid in 36 ppm water at pH 8.0, has a half-life of two minutes or greater based on an activity vs. time plot obtained via monitoring color development at 405 nm of solution samples incubated with p-nitrophenyl-.alpha.-D-maltoheptaoside as substrate and gluco amylase and .alpha.-glucosidase as coupled enzymes; and 1% to 75% by weight of a builder. A 1% aqueous solution of the composition must have a pH of less than 10.
Type:
Grant
Filed:
November 16, 1995
Date of Patent:
April 21, 1998
Assignee:
Lever Brothers Company, Division of Conopco, Inc.
Inventors:
John Richard Nicholson, Isaac Israel Secemski, Deborah Sue Rick, Duane Anthony Raible
Abstract: A detergent block of compressed granular material is provided, said block having a weight of 0.2-10 kg, being substantially free of phoshate builder material, and comprising a granulated builder material, an alkaline agent and a compressing aid. A process is also provided for preparing a block of compressed granular material being substantially free of a phosphate builder and having a weight of 0.2 to 10 kg, said process involving the steps of(i) granulating a non-phosphate builder material, with 0.1-10% by weight based on the weight of the builder of a co-ingredient selected from polycarboxylic polymer solutions, alkali metal silicate solutions, and mixtures thereof;and(ii) compressing a particulate mixture of said granulated builder material and other components of the block, including a compressing aid, in a mould under a pressure of 3-30 kN/cm.sup.2.
Type:
Grant
Filed:
February 15, 1996
Date of Patent:
February 17, 1998
Assignee:
Lever Brothers Company, Division of Conopco, Inc.
Inventors:
Guido Clemens van den Brom, Seeng Djiang Liem, Harmannus Tammes
Abstract: The invention provides a dishwashing composition comprising builder material, buffer material and other conventional ingredients in combination with a lipase and a hydrophobic modified (co)polymer of acrylic acid. More in particular the invention provides a dishwashing composition comprising lipase (calculated as having an activity of 200 LU/mg) and a hydrophobic modified (co)polymer of acrylic acid in a weight ratio of 1 to 1:2.000, preferably 1 to 1:1 000.
Type:
Grant
Filed:
September 18, 1996
Date of Patent:
February 17, 1998
Assignee:
Lever Brothers Company, Division of Conopco, Inc.
Inventors:
James William Gordon, Joseph Oreste Carnali
Abstract: Automatic dishwashing detergent compositions comprising a certain combination of metasilicate with other silicate (polymeric) components are disclosed. Particularly preferred compositions also comprise low foaming surfactant and detergency builders.
Type:
Grant
Filed:
November 29, 1994
Date of Patent:
December 30, 1997
Assignee:
The Procter & Gamble Company
Inventors:
Gregory Stephen Caravajal, Janet Layne Marshall
Abstract: An automatic dishwashing compositions containing a mixture of an acid resistant protease enzyme and an acid resistant amylase enzyme have been found to be very useful in the removal of protein and carbohydrate soils from dishware at operating temperatures of 100.degree. F. to 140.degree. F.
Type:
Grant
Filed:
September 10, 1996
Date of Patent:
December 16, 1997
Assignee:
Colgate-Palmolive Co.
Inventors:
Philip A. Gorlin, Divaker Kenkare, Steve Phillips
Abstract: A composition and method for inhibiting lead corrosion of fine tableware washed in automatic dishwashers is disclosed. The composition comprises an aluminum salt which dissolves at a rate to deliver less than 0.56 mM aluminum(III) per minute at 42.degree. C. to a wash liquor, a bleaching agent, a builder and optionally a surfactant. The composition has a pH of less than about 10 and is substantially free of silicates.
Type:
Grant
Filed:
May 19, 1995
Date of Patent:
December 16, 1997
Assignee:
Lever Brothers Company, Division of Conopco, Inc.
Inventors:
Petrus Andrianus Angevaare, Richard Gerald Gary
Abstract: A method and composition for inhibiting foam formation in automatic dishwashers are described. The composition comprises an anti-foam system having 0.01 to 1% of certain hydrophobic particulate solids combined with 0.01 to 4% of high viscosity hydrocarbon polymers; 1 to 30 wt. % of a bleaching agent; 1 to 40 wt. % of a surfactant; 0.1 to 10 wt. % of an enzyme; and 1 to 75 wt. % of a builder, the composition having a pH of less than about 11.
Type:
Grant
Filed:
October 6, 1995
Date of Patent:
December 9, 1997
Assignee:
Lever Brothers Company, Division of Conopco, Inc.
Inventors:
Petrus Adrianus Angevaare, Olaf Beers, Peter Robert Garrett, Alla Tartakovsky, John William Harold Yorke
Abstract: A stable, dual-function, phosphate-, metasilicate- and polymer-free low alkali detergent tablet containing: (a) from 5 to 50% by weight of a sodium citrate; (b) from 1 to 60% by weight of anhydrous sodium carbonate; (c) from 1 to 60% by weight of sodium hydrogen carbonate; (d) a bleaching agent selected from the group consisting of sodium perborate monohydrate, sodium percarbonate and mixtures thereof; (e) from 0.5 to 4% by weight of tetraacetyl ethylenediamine; (f) from 0.1 to 2% by weight of protease; (g) from 0.1 to 2% by weight of amylase; and (h) from 3 to 10% by weight of water, all weights being based on the weight of the tablet.
Type:
Grant
Filed:
October 2, 1995
Date of Patent:
November 25, 1997
Assignee:
Henkel Kommanditgesellschaft auf Aktien
Inventors:
Hans Kruse, Hans-Josef Beaujean, Norbert Schaefer, Juergen Haerer
Abstract: Stratified solid cast alkaline detergent compositions are disclosed in which the concentrations of an active alkalinity source and water of hydration which contain at least one granular material in varying concentration throughout the composition. Methods of making and using the disclosed compositions are also disclosed.
Abstract: The present invention relates to a machine dishwashing composition containingfrom 1% to 80% of a detergent builder component other than carbonatefrom 0% to 9%, preferably 0% to 5%, most preferred 0% of alkali-metal carbonate or bicarbonate saltan oxygen-releasing bleaching agent such that the level of available oxygen measured according to the method herein is from 0.3 to 1.7, preferably 0.5 to 1.2,from 0.05% to 2.5%, preferably 0.1% to 0.6% of a paraffin oil, the rate of release of oxygen being preferably also controlled; the present invention also encompasses a process for making such compositions.
Abstract: A composition and method for inhibiting lead corrosion of fine tableware washed in automatic dishwashers is disclosed. The detergent composition comprises an aluminum-sequestrant complex formed by binding the aluminum by a sequestrant in a premix, which is then processed with other detergent components. The composition has a pH of less than about 10 and is substantially free of silicates.
Type:
Grant
Filed:
May 19, 1995
Date of Patent:
April 29, 1997
Assignee:
Lever Brothers Company, Division of Conopco, Inc.
Abstract: A process for the manufacture of a high bulk density granular dishwashing detergent composition which comprises agglomerating ingredients with a liquid binder to form base granules which are substantially free of alkali metal silicates followed by admixing alkali metal silicate. The process provides uniform delivery of detergent ingredients and improved solubility.
Abstract: Liquid or granular automatic dishwashing detergent compositions comprising builder, enzyme and low molecular weight modified polyacrylate copolymers for enhanced hard water filming and enzyme performance.
Abstract: Automatic dishwashing detergents are provided in convenient, compact form without chlorine bleaches or phosphate builders. Thus, monopersulfate bleach such as 2KHSO.sub.5.KHSO.sub.4.K.sub.2 SO.sub.4 is used in combination with protease or amylase enzymes and acrylate organic dispersants to provide good cleaning of tableware. Weak builders such as citrate and pH-adjusting agents such as carbonate, bicarbonate and silicate can be present in the composition.
Type:
Grant
Filed:
May 17, 1995
Date of Patent:
September 24, 1996
Assignee:
The Procter & Gamble Company
Inventors:
Frederick A. Hartman, Ronald J. Rice, James C. T. R. Burckett-St. Laurent, Lucille F. Taylor, Donna J. Haeggberg