Patents by Inventor Robert O. Keys
Robert O. Keys has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 6784152Abstract: A rinse cycle fabric softener concentrate having improved softening properties consisting essentially of a blend of at least one polyquat and a cationic fabric softener agent selected from the group consisting of ester-containing quaternary ammonium compounds, amido amine quaternary ammonium compounds, imidazoline quats and mixtures and salts thereof.Type: GrantFiled: May 10, 2002Date of Patent: August 31, 2004Assignee: Goldschmidt Chemical CorporationInventor: Robert O. Keys
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Patent number: 6737392Abstract: A fabric softener composition in which a blend of high mono alkyl MDEA and TEA ester quats is provided. The fabric softener composition includes a blend of from about 15 to about 65%, by weight of the total blend, of a triethanol amine ester quat and from about 35 to about 85%, by weight of the total blend, of a methyl diethanol amine ester quat having a mono alkyl ester quat level of about 10% or greater.Type: GrantFiled: June 11, 2003Date of Patent: May 18, 2004Assignee: Goldschmidt Chemical CorporationInventors: Robert O. Keys, Christopher J. Toney, David L. Gefvert
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Publication number: 20020173443Abstract: A rinse cycle fabric softener concentrate having improved softening properties consisting essentially of a blend of at least one polyquat and a cationic fabric softener agent selected from the group consisting of ester-containing quaternary ammonium compounds, amido amine quaternary ammonium compounds, imidazoline quats and mixtures and salts thereof.Type: ApplicationFiled: May 10, 2002Publication date: November 21, 2002Inventor: Robert O. Keys
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Publication number: 20020002297Abstract: Polyquaternaries which are obtained by reacting at least one alkyldialkanolamine with a mixture of acids comprising at least one fatty acid and at least one dicarboxylic acid are disclosed. The inventive quaternaries have improved properties, such as softness, dispersibility and high biodegradeability; therefore, the inventive esterquats are highly useful as a component in rinse cycle fabric softeners, dryer sheets, hair conditioners, paper debonders and other applications in which a high degree of softness is required.Type: ApplicationFiled: June 1, 2001Publication date: January 3, 2002Inventor: Robert O. Keys
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Patent number: 6211139Abstract: A composition comprising: (a) a compound of the following structural formula: wherein each of R* and R** is independently a linear, branched or cyclic alkylene group containing 2 to 12 carbon atoms, wherein no two nitrogen atoms are separated by fewer than 2 carbon atoms; each of A1, A2, A3, A4, and A5 is independently a straight or branched alkylene containing 2 to 4 carbon atoms; each of R1, R2, R3, R4, and R5 is independently —H or RAC(O)— wherein RA is straight or branched alkyl or alkenyl containing 7 to 21 carbon atoms and 0 to 4 carbon-carbon double bonds; provided that at least one of R1, R2, R3, R4, or R5 is RAC(O)—; each of Q1, Q2 and Q3 is independently —H, —CH3, —C2H5, —C3H7, —C4H5, benzyl, —CH2COOH, or —CH2COOA−; or, if R* is a —CH2CH2— group, Q1 and Q3 together or Q1 and Q2 together may be a —CH2CH2— group to form a six-membered piperazine ring; or, if R** is a —CH2CH2— group,Type: GrantFiled: October 13, 1998Date of Patent: April 3, 2001Assignee: Goldschmidt Chemical CorporationInventors: Robert O. Keys, Floyd E. Friedli, Damon M. Dalrymple, Monna Manning, Craig Poffenberger, David E. Whittlinger, Wangqi Hou
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Patent number: 6162453Abstract: A stable monophasic liquid composition characterized by the ability to solubilize increased amounts of surfactant into the composition while retaining a monophasic state, the composition comprising: one or more surfactants selected from the group consisting of cationic surfactants, anionic surfactants, amphoteric surfactants, nonionic surfactants, and mixtures thereof; a hydrophobic material; and one or more coupling agents selected from the group consisting of straight, branched and cyclic alkanes containing 7 to 12 carbon atoms and substituted with two hydroxyl groups, and alkoxylates thereof containing up to 20 alkoxy units each of which is ethoxy, propoxy, or butoxy, and mixtures thereof, in an amount of the one or more coupling agents effective to increase the amount of the one or more surfactants that can be solubilized in the monophasic composition.Type: GrantFiled: September 3, 1999Date of Patent: December 19, 2000Assignee: Witco CorporationInventor: Robert O. Keys
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Patent number: 5977189Abstract: Disclosed are stable monophasic liquid compositions comprising water, one or more cationic, anionic, amphoteric and/or nonionic surfactants, exhibiting partial solubility in water or in concentrated formulations, and one or more coupling agents which are C.sub.7 -C.sub.12 alkane substituted with two hydroxyl groups or alkoxylates thereof with up to 20 moles of one or more of ethylene oxide, propylene oxide and/or butylene oxide.Type: GrantFiled: July 25, 1997Date of Patent: November 2, 1999Assignee: Witco CorporationInventor: Robert O. Keys
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Patent number: 5958863Abstract: Homogeneous liquid cationic compositions are produced by combining one or more cationic agents with one or more compounds of the formula HO(X--O).sub.x --R--(O--Y).sub.y --OH wherein each X is ethylene, straight or branched propylene, or straight or branched butylene; x is 0 to 40; each Y is ethylene, straight or branched propylene, or straight or branched butylene; y is 0 to 40; the sum of (x+y) is 0 to 40; and R is saturated straight, branched or cyclic alkylene containing 4 to 12 carbon atoms or, if (x=y=0), R contains 7 to 12 carbon atoms. Compositions are easily dispersed in water, even at room temperature, at any concentration and can be made to form clear or translucent products having a desirable uniform appearance, by appropriate selection of components and their amounts.Type: GrantFiled: June 2, 1997Date of Patent: September 28, 1999Assignee: Witco CorporationInventor: Robert O. Keys
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Patent number: 5830842Abstract: Disclosed are stable monophasic liquid compositions comprising water, one or more cationic, anionic, amphoteric and/or nonionic surfactants, exhibiting partial solubility in water or in concentrated formulations, and one or more coupling agents of the formula (1)R.sup.A --C(O)O--R.sup.C --(OC(O)R.sup.E).sub.0-1 (1)wherein R.sup.A is C.sub.1 -C.sub.15 alkyl with 0-3 hydroxyl substituents, R.sup.C is C.sub.1 -C.sub.10 alkyl with 0-3 hydroxyl substituents, and R.sup.E is C.sub.1 -C.sub.15 alkyl with 0-1 hydroxyl substituents, wherein the compounds of formula (1) contain 7 to 16 carbon atoms and a total of 1-3 hydroxyl substituents.Type: GrantFiled: April 26, 1996Date of Patent: November 3, 1998Assignee: Witco CorporationInventor: Robert O. Keys
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Patent number: 5824635Abstract: Disclosed are aqueous compositions containing a cationic compound and a hydroxy ester of the formula (1)R.sup.A --C(O)O--R.sup.C --(O--C(O)R.sup.E).sub.0-1 (1)wherein R.sup.A is C.sub.1 -C.sub.15 alkyl with 0-3 hydroxyl substituents, R.sup.C is C.sub.1 -C.sub.10 alkyl with 0-3 hydroxyl substituents, and R.sup.E is C.sub.1 -C.sub.15 alkyl with 0-1 hydroxyl substituents, wherein the compounds of formula (1) contain 7 to 16 carbon atoms and a total of 1-3 hydroxyl substituents.Type: GrantFiled: April 26, 1996Date of Patent: October 20, 1998Inventor: Robert O. Keys
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Patent number: 5753079Abstract: Enhanced paper debonding and softening are achieved by producing the paper from an aqueous suspension of fibers which contains one or more cationic agents and one or more compounds of the formula HO(X--O).sub.x --R--(O--Y).sub.y --OH wherein each X is ethylene, straight or branched propylene, or straight or branched butylene; x is 0 to 40; each Y is ethylene, straight or branched propylene, or straight or branched butylene; y is 0 to 40; the sum of (x+y) is 0 to 40; and R is saturated straight, branched or cyclic alkylene containing 4 to 12 carbon atoms.Type: GrantFiled: May 3, 1996Date of Patent: May 19, 1998Assignee: Witco CorporationInventors: Neil A. Jenny, Robert O. Keys
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Patent number: 5686023Abstract: Disclosed are stable monophasic liquid compositions comprising water, one or more cationic, anionic, amphoteric and/or nonionic surfactants, exhibiting partial solubility in water or in concentrated formulations, and one or more coupling agents which are C.sub.7 -C.sub.12 alkane substituted with two hydroxyl groups or alkoxylates thereof with up to 20 moles of one or more of ethylene oxide, propylene oxide and/or butylene oxide.Type: GrantFiled: April 27, 1995Date of Patent: November 11, 1997Assignee: Witco CorporationInventor: Robert O. Keys
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Patent number: 5674832Abstract: Homogeneous liquid cationic compositions are produced by combining one or more cationic agents with one or more compounds of the formula HO(X--O).sub.x --R--(O--Y).sub.y --OH wherein each X is ethylene, straight or branched propylene, or straight or branched butylene; x is 0 to 40; each Y is ethylene, straight or branched propylene, or straight or branched butylene; y is 0 to 40; the sum of (x+y) is 0 to 40; and R is saturated straight, branched or cyclic alkylene containing 4 to 12 carbon atoms or, if (x=y=0), R contains 7 to 12 carbon atoms. Compositions are easily dispersed in water, even at room temperature, at any concentration and can be made to form clear or translucent products having a desirable uniform appearance, by appropriate selection of components and their amounts.Type: GrantFiled: April 27, 1995Date of Patent: October 7, 1997Assignee: Witco CorporationInventor: Robert O. Keys
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Patent number: 5670472Abstract: Disclosed are compounds of the formula (I) ##STR1## useful as fabric softening compounds which exhibit enhanced biodegradability.Type: GrantFiled: May 26, 1995Date of Patent: September 23, 1997Assignee: Witco CorporationInventor: Robert O. Keys
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Patent number: 4892663Abstract: Disclosed is a method for dewatering an aqueous slurry of solid coal particulates wherein a dewatering aid is added to the slurry followed by filtration thereof, preferably with vacuum augmentation. Selected quaternary ammonium dewatering aids of specific structure are disclosed.Type: GrantFiled: December 2, 1988Date of Patent: January 9, 1990Assignee: Sherex Chemical Company, Inc.Inventor: Robert O. Keys
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Patent number: 4678563Abstract: Disclosed is a process for the concentration of sulfide ore wherein an aqueous slurry of sulfide ore particles are subjected to sulfide ore froth flotation under sulfide ore froth flotation conditions. The improvement in process comprises using an effective amount of a frothing agent selected from the group consisting of:(a) the reaction product of a C.sub.5 -C.sub.10 diol and a C.sub.1 -C.sub.7 carboxylic acid;(b) the reaction product of a C.sub.5 -C.sub.10 diol and an acrylonitrile;(c) the reaction product of a C.sub.2 -C.sub.4 alkylene oxide and a C.sub.1 -C.sub.7 carboxylic acid;(d) the reaction group of a C.sub.2 -C.sub.4 alkylene oxide and a C.sub.5 -C.sub.10 diol;(e) the reaction product of a C.sub.2 -C.sub.4 alkylene oxide and an acrylonitrile; and(f) mixtures thereof,the resulting modified alcohol frothing agents have at least one hydroxyl group thereon. The modified alcohol frothing agents of the present invention provide improved flotation kinetics and selectivity in the sulfide ore float.Type: GrantFiled: May 7, 1985Date of Patent: July 7, 1987Assignee: Sherex Chemical Company, Inc.Inventor: Robert O. Keys
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Patent number: 4678562Abstract: Disclosed is an improved process wherein coal particles are beneficiated by froth flotation under coal froth flotation conditions to separate the desired coal particles from remaining unwanted ash and like gangue material. The improvement of the present invention comprises conducting the froth flotation in the presence of an effective proportion of a hydrophobic, non-ionc promoter which is a C.sub.12 -C.sub.30 fatty alcohol or its C.sub.3 or higher alkoxylated derivative.Type: GrantFiled: February 18, 1986Date of Patent: July 7, 1987Assignee: Sherex Chemical Company, Inc.Inventor: Robert O. Keys
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Patent number: 4678561Abstract: Disclosed is an improved process wherein coal particles are beneficiated by froth flotation under coal froth flotation conditions to separate the desired coal particles from remaining unwanted ash and like gangue material. The improvement of the present invention comprises conducting the froth flotation in the presence of an effective proportion of a hydrophobic, non-ionic promotor which is a C.sub.10 -C.sub.30 nitrile or polynitrile thereof.Type: GrantFiled: February 18, 1986Date of Patent: July 7, 1987Assignee: Sherex Chemical Company, Inc.Inventor: Robert O. Keys
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Patent number: 4606818Abstract: Disclosed is an improved froth flotation process wherein solid coal particles are selectively separated under coal froth flotation conditions as a froth phase from remaining solid feed particles as an aqueous phase in the presence of a coal particle collector (e.g. a fuel oil), optionally a promoter, and an alcohol frother. The improvement in the present invention is characterized by the alcohol frother comprising the reaction product of a C.sub.4 -C.sub.10 diol and a compound selected from the group consisting of an alkylene oxide and an acrylonitrile. The resulting frothing agent has at least one hydroxyl group and provides greater coal recovery than use of the diol as the frothing agent.Type: GrantFiled: January 25, 1985Date of Patent: August 19, 1986Assignee: Sherex Chemical Company, Inc.Inventor: Robert O. Keys
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Patent number: 4589980Abstract: Disclosed is an improved process wherein coal particles are beneficiated by froth flotation under coal froth flotation conditions to separate the desired coal particles from remaining unwanted ash and like gangue material. The improvement of the present invention comprises conducting the froth flotation in the presence of an effective proportion of a promoter which is at least C.sub.10 aliphatic carboxylic acid or an aliphatic ester thereof which is devoid of nitrogen atoms; the hydroxylated, oxidized, or alkoxylated derivative of said acid or ester promoters; and mixtures thereof.Type: GrantFiled: March 1, 1984Date of Patent: May 20, 1986Assignee: Sherex Chemical Company, Inc.Inventor: Robert O. Keys