Abstract: This invention relates to a liquid cleaning composition comprising a surfactant system containing selected mid-chain branched surfactant and co-surfactants.
Type:
Grant
Filed:
November 4, 1999
Date of Patent:
July 11, 2000
Assignee:
The Procter & Gamble Company
Inventors:
Phillip Kyle Vinson, Peter Robert Foley, Thomas Anthony Cripe, Daniel Stedman Connor
Abstract: This invention relates to a liquid cleaning composition comprising a surfactant system containing selected mid-chain branched surfactant and co-surfactants.
Type:
Grant
Filed:
October 13, 1998
Date of Patent:
April 4, 2000
Assignee:
The Procter & Gamble Company
Inventors:
Phillip Kyle Vinson, Peter Robert Foley, Thomas Anthony Cripe, Daniel Stedman Connor
Abstract: Automatic dishwashing detergent compositions comprising a mixed nonionic surfactant system comprising low cloud point and high cloud point nonionic surfactants.
Type:
Grant
Filed:
April 29, 1999
Date of Patent:
March 7, 2000
Assignee:
The Procter & Gamble Company
Inventors:
William Michael Scheper, Laura Lee Turner, Kuntal Chatterjee, Lynda Anne Speed, Graeme Duncan Cruickshank
Abstract: A cationic ester surfactant comprising at least one ester linkage and at least one cationically charged group, characterized in that said cationically charged group is an ammonium group substituted by at least one hydrodyalkyl group. Surfactant systems and detergent compositions containing the cationic surfactant which are suitable for use in laundry and dishwashing are provided, as are methods of use.
Type:
Grant
Filed:
September 4, 1998
Date of Patent:
February 8, 2000
Assignee:
The Procter & Gamble Company
Inventors:
Gerard Marcel Baillely, Christopher Mark Perkins
Abstract: Mid-chain branched surfactants derived from mid-chain branched primary alkyl hydrophobic groups and hydrophilic groups. The present invention also relates to mixtures of mid-chain branched surfactants useful in laundry and cleaning compositions, especially granular and liquid detergent compositions.
Type:
Grant
Filed:
October 13, 1998
Date of Patent:
February 1, 2000
Assignee:
The Procter & Gamble Company
Inventors:
Thomas Anthony Cripe, Daniel Stedman Connor, Phillip Kyle Vinson, James Charles Theophile Roger Burckett-St. Laurent, Kenneth William Willman, Jeffrey John Scheibel, Robert Emerson Stidham, Jeffrey Scott Dupont
Abstract: Automatic dishwashing detergent compositions comprising certain cobalt catalysts are provided. More specifically, the invention relates to automatic dishwashing detergents which provide enhanced cleaning/bleaching benefits (especially tea stain removal) through the selection of cobalt chelated catalysts having the formula:[Co.sub.n L.sub.m X.sub.p ].sup.z Y.sub.z.Preferred automatic dishwashing compositions comprise amylase and/or protease enzymes. Included are methods for washing tableware in domestic automatic dishwashing appliances using the cobalt catalysts.
Type:
Grant
Filed:
May 28, 1999
Date of Patent:
February 1, 2000
Assignee:
Procter & Gamble Company
Inventors:
Edward Eugene Getty, William Michael Scheper, Alan Scott Goldstein
Abstract: A granular detergent composition comprising an alkali metal percarbonate, characterized in that percarbonate has a mean particle size of from 250 to 900 micrometers, and that said compositions comprise a hydrophobic material, selected from silica, talc, zeolite DAY and hydrotalcit, in a weight ratio of alkali metal percarbonate to a hydrophobic material, of from 4:1 to 40:1, preferably 7:1 to 20:1. Both laundry detergent compositions including laundry additives and automatic dishwashing compositions are encompassed by the term "detergent composition" herein. Making processes thereof are also described.
Type:
Grant
Filed:
June 5, 1998
Date of Patent:
January 25, 2000
Assignee:
The Procter & Gamble Company
Inventors:
Gerard Marcel Baillely, Paul Amaat Raymond G. France, Carole Patricia D. Wilinson
Abstract: The present disclosure relates to a liquid detergent composition comprising a surfactant system which is free of linear alkyl benzene sulfonate. The detergent composition comprises a selected quaternary ammonium surfactant, and an anionic surfactant selected from the group consisting of alkyl alkoxy sulfates and alkyl sulfates.
Type:
Grant
Filed:
March 27, 1998
Date of Patent:
January 25, 2000
Assignee:
The Procter & Gamble Company
Inventors:
Dimitris Lappas, Rajan Keshav Panandiker, Thomas Wilhelm Horner
Abstract: Two processes for producing agglomerated high density detergent compositions are provided. On process comprises blending secondary (2,3) alkyl sulfate with a detergency builder to form a homogeneous powder mixture which is agglomerated with a surfactant paste mixture comprising C.sub.10-20 linear alkylbenzene sulfonates, C.sub.10-20 alkyl sulfates, C.sub.10-18 alkyl ethoxy sulfates having from about 1 to about 7 ethoxy groups, alcohol ethoxylates and polyethylene glycol and drying the agglomerates. Another process comprises blending secondary (2,3) alkyl sulfate with a detergency builder to form a homogeneous powder mixture which is agglomerated with a liquid acid precursor of C.sub.10-20 linear alkylbenzene sulfonate so as to form an agglomerated detergent composition which has a density of at least about 650 g/l.
Type:
Grant
Filed:
February 24, 1999
Date of Patent:
January 25, 2000
Assignee:
The Procter & Gamble Compnay
Inventors:
Stephen William Sikra, James Bert Royston
Abstract: Secondary (2,3) alkyl sulfate surfactants are admixed with an organic material such as a polyacrylate, and the resulting mixture is compacted into chips. The chips are comminuted to provide particles and the particles are coated with a free-flow aid. The resulting particles exhibit improved solubility and are especially useful in laundry detergents.
Abstract: Detergent composition comprising a mid-chain branched surfactant and also containing a bleaching agent, aluminosilicate, silicate, and/or detersive enzyme.
Type:
Grant
Filed:
October 13, 1998
Date of Patent:
January 18, 2000
Assignee:
The Procter & Gamble Company
Inventors:
Phillip Kyle Vinson, Peter Robert Foley, Thomas Anthony Cripe, Daniel Stedman Connor, Kenneth William Willman
Abstract: Automatic dishwashing detergent compositions comprising a mixed nonionic surfactant system comprising low cloud point and high cloud point nonionic surfactants.
Type:
Grant
Filed:
December 12, 1996
Date of Patent:
January 11, 2000
Assignee:
The Procter & Gamble Company
Inventors:
William Michael Scheper, Laura Lee Turner, Kuntal Chatterjee
Abstract: The present invention relates to detergent compositions containing low molecular weight organic diamines. More particularly, the invention is directed to detergent compositions for hand dishwashing which has improved grease removal performance and benefits in sudsing. The detergents of this invention also have improved low temperature stability properties and dissolution properties.
Type:
Grant
Filed:
December 20, 1996
Date of Patent:
November 23, 1999
Assignee:
The Procter & Gamble Company
Inventors:
Phillip Kyle Vinson, Janice L. Oglesby, Jeffrey J. Scheibel, William M. Scheper, Kofi Ofosu-Asante, Joanna Margaret Clarke, Robert N. Owens
Abstract: There is provided a detergent composition suitable for use in laundry and dish washing methods comprising (a) a cationic ester surfactant; and (b) a grease dispersing agent.
Type:
Grant
Filed:
November 30, 1998
Date of Patent:
November 9, 1999
Assignee:
The Procter & Gamble Company
Inventors:
Ian Martin Dodd, Christiaan Arthur Thoen, Michael Alan John Moss
Abstract: Automatic dishwashing detergent compositions comprising a nonionic surfactant having the formula:R.sub.1 O[CH.sub.2 CH(CH.sub.3)O].sub.x [CH.sub.2 CH.sub.2 O].sub.y [CH.sub.2 CH(OH)R.sub.2 ]wherein R.sub.1 is a linear or branched, aliphatic hydrocarbon radical having from about 4 to about 18 carbon atoms including mixtures thereof; R.sub.2 is a linear or branched aliphatic hydrocarbon radical having from about 2 to about 26 carbon atoms including mixtures thereof; x is an integer having an average value of from 0.5 to about 1.5; and y is an integer having a value of least about 15; employed in conjunction with a detersive enzyme such as amylase are provided.
Type:
Grant
Filed:
December 12, 1996
Date of Patent:
October 19, 1999
Assignee:
The Procter & Gamble Company
Inventors:
Kuntal Chatterjee, Graeme Duncan Cruickshank, Lynda Anne Jones, Eugene Steven Sadlowski
Abstract: Automatic dishwashing detergent compositions comprising phosphate builder and metal-containing bleach catalyst, preferably catalysts containing manganese and/or selected from selected cobalt/ammonia catalysts. Preferred compositions comprise cobalt bleach catalyst having the formula:[Co(NH3).sub.n (M).sub.m (B).sub.b ]T.sub.ywherein cobalt is in the +3 oxidation state; n is 4 or 5 (preferably 5); M is one or more ligands coordinated to the cobalt by one site; B is a ligand coordinated to the cobalt by two sites; b is 0 or 1 (preferably 0); and when b=0, then m+n=6, and when b=1, then m=0 and n=4; and T is one or more appropriately selected counteranions present in a number y, wherein y is an integer to obtain a charge-balanced salt (preferably y is 1-3; most preferably 2 when T is a -1 charged anion); and wherein further the catalyst has a base hydrolysis rate constant of less than 0.23M.sup.-1 s.sup.-1 at 25.degree. C.
Type:
Grant
Filed:
December 20, 1995
Date of Patent:
October 19, 1999
Assignee:
The Procter & Gamble Company
Inventors:
Donna Jean Haeggberg, William Michael Scheper
Abstract: The present invention concerns aqueous surfactant composition comprising poly hydroxy fatty acid amides of formula (A), ##STR1## wherein R.sup.2 is C.sub.11 -C.sub.19 alkyl, alkenyl or mixtures thereof, Z is a polyhydroxyhydrocarbyl moiety having a linear hydrocarbyl chain with at least 3 hydroxyls directly connected to the chain; and in a part of the total amide surfactant (a) R.sup.1 is a methyl group and in the remainder of the total amide surfactant (b) R.sup.1 is an alkyl group with from 3 to 8 carbon atoms; said composition further comprising (c) from 0% to 15% by weight of an organic solvent; wherein the ratio of N-methyl poly hydroxy fatty acid amide (a) to N-alkyl (C.sub.3 -C.sub.8) polyhydroxy fatty acid amide (b), is from 25:1 to 1:1.
Type:
Grant
Filed:
February 27, 1998
Date of Patent:
October 12, 1999
Assignee:
The Procter & Gamble Company
Inventors:
Jean-Pol Boutique, Patrick Firmin A. Delplancke
Abstract: Automatic dishwashing detergent compositions comprising certain cobalt catalysts are provided. More specifically, the invention relates to automatic dishwashing detergents which provide enhanced cleaning/bleaching benefits (especially tea stain removal) through the selection of cobalt bleach catalyst having the formula:?Co(NH.sub.3).sub.n (M).sub.m (B).sub.b !T.sub.ywherein cobalt is in the +3 oxidation state; n is 4 or 5 (preferably 5); M is one or more ligands coordinated to the cobalt by one site; m is 0, 1 or 2 (preferably 1); B is a ligand coordinated to the cobalt by two sites; b is 0 or 1 (preferably 0), and when b=0, then m+n=6, and when b=1, then m=0 and n=4; and T is one or more appropriately selected counteranions present in a number y, where y is an integer to obtain a charge-balanced salt (preferably y is 1 to 3; most preferably 2 when T is a -1 charged anion); and wherein further said catalyst has a base hydrolysis rate constant of less than 0.23M.sup.-1 s.sup.-1 (25.degree. C.).
Type:
Grant
Filed:
November 5, 1997
Date of Patent:
October 5, 1999
Assignee:
The Procter & Gamble Company
Inventors:
William Michael Scheper, Christopher Mark Perkins
Abstract: Detergent compositions comprising: a) a dianionic cleaning agent comprising a structural skeleton of at least five carbon atoms to which two anionic substituent groups spaced at least three atoms apart are attached, wherein one anionic substituent group is a sulfate group and the other anionic substituent is selected from sulfate and sulfonate; b) a nonionc surfactant (preferably alkyl ethoxylates, especially alkyl ethoxylates having an average of at least 3 ethoxylates); c) in total, less than about 20% by weight anionic surfactants; d) optionally, co-surfactants selected from the group consisting of amphoteric surfactants, zwitterionic surfactants, cationic surfactants, and mixtures thereof; and e) detergent composition adjunct ingredients; and wherein the weight ratio of anionic surfactant to nonionic surfactant plus any optional co-surfactant d) is with the range of from about 1:1 to about 1:10.
Type:
Grant
Filed:
June 25, 1997
Date of Patent:
September 28, 1999
Assignee:
The Procter & Gamble Company
Inventors:
Jean-Luc Philippe Bettiol, Peter Robert Foley, Stephen Wayne Heinzman, Barry Thomas Ingram, Alison Lesley Main
Abstract: The present invention relates to detergent compositions comprising lipases, a lipase compatible anionic surfactant system, and a gemini polyhydroxy fatty acid amide. The anionic surfactant system comprises alkyl alkoxylated sulphates having specific ratios of mono-, di- and tri-alkoxylated sulphates. The detergent compositions provide improved greasy soil removal over a wide range of temperatures.
Type:
Grant
Filed:
February 21, 1997
Date of Patent:
September 21, 1999
Assignee:
The Procter & Gamble Company
Inventors:
Gerard Marcel Baillely, Barry Thomas Ingram, Christian Leo Marie Vermote