Patents Assigned to Cognis Corporation
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Patent number: 6666985Abstract: A high quality lubricant for hermetically sealed domestic air conditioner and refrigerator compressors, especially those using chlorine free hydrofluorocarbon refrigerant working fluids, is provided by mixed esters of hindered polyols, most desirably pentaerythritol, with a mixture of carboxylic acids including at least some iso-pentanoic acid along with either or both of iso-nonanoic acid and dibasic acids such as adipic.Type: GrantFiled: January 28, 2002Date of Patent: December 23, 2003Assignee: Cognis CorporationInventors: Nicholas E. Schnur, Eugene R. Zehler
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Patent number: 6664216Abstract: Lubricant compositions comprising biodegradable ester base stocks are provided for water-cooled or air-cooled two-cycle engines.Type: GrantFiled: May 17, 1995Date of Patent: December 16, 2003Assignee: Cognis CorporationInventors: Stephen C. Lakes, Henry G. Stoeppel, II, Bruce J. Beimesch
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Patent number: 6660505Abstract: A process for recovering carboxylic acids from an aqueous mixture such as a fermentation broth using a solvent containing at least one olefin without the need for first removing the spent microorganism cells is provided. A co-solvent which increases the partition coefficient of the solvent relative to the carboxylic acid may optionally be included.Type: GrantFiled: June 19, 2001Date of Patent: December 9, 2003Assignee: Cognis CorporationInventor: Michael D. Staley
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Patent number: 6656888Abstract: Lubricant compositions comprising biodegradable ester base stocks are provided for water-cooled or air-cooled two-cycle engines. Grease compositions comprising biodegradable ester base stocks are provided for a wide variety of machinery including chain saws, truck chassis, and the rail, wheel flanges and switches on the railroads.Type: GrantFiled: June 5, 1996Date of Patent: December 2, 2003Assignee: Cognis CorporationInventor: Eugene R. Zehler
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Patent number: 6649733Abstract: Latexes are thickened by compounds of the formula: R1—(O—A)a—B1—R2—(B2—R3)d—(B3—(A′—O)b-f—(A′—B4)f—R4—(B5—R5)e)n—B6—(A″O)c—R6 wherein: R1 and R6 are monovalent hydrophobic groups independently selected from the group consisting of an aliphatic group, a substituted aliphatic group, an aromatic group, and a substituted aromatic group; R2 and R4 are independently selected from the group consisting of aliphatic, substituted aliphatic, aromatic, or substituted aromatic radicals, each radical being divalent or trivalent; R3 and R5 are independently selected from hydrogen, lower alkyl and lower aralkyl; B1, B2, B3, B4, B5, and B6 are linking groups independently selected from the group consisting of an oxygen atom (to form the ether linkage —O—), a carboxylate group (to form an ester linkage R2—C(O)—O— and/or R4—C(O)—O—), an amino group (to formType: GrantFiled: May 9, 1994Date of Patent: November 18, 2003Assignee: Cognis CorporationInventors: Michael S. Wiggins, Reuben H. Grinstein
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Patent number: 6645913Abstract: An adjuvant composition for pesticide formulations which exhibits reduced eye irritancy is comprised of a polyoxyalkylene aliphatic amine containing at least about 2 moles of an alkylene oxide group and an eye irritation reducing compound which simultaneously reduces the eye irritation caused by the polyoxyalkylene aliphatic amine and which complexes with metal ions such as calcium and iron which may be present in an aqueous solution of the adjuvant and a pesticide or a plant growth regulator. The eye irritation reducing compound is a carboxylic acid that is capable of complexing with or forming chelates with metal ions in aqueous solution while simultaneously reducing the eye irritation caused by the polyoxyalkylene aliphatic amine. The adjuvant also contains a mixture of polyhydric alcohols and, optionally, a defoamer. The adjuvant is particularly in N-phosphonomethylglycine (glyphosate) herbicidal formulations.Type: GrantFiled: April 22, 2002Date of Patent: November 11, 2003Assignee: Cognis CorporationInventor: Mickey R. Brigance
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Patent number: 6632410Abstract: Copper is preferentially extracted from iron in an aqueous feedstock solution containing dissolved copper and iron values by contacting the feedstock solution with a water-immiscible organic solution comprised of a hydrocarbon solvent and a compound of the formula I wherein R5 is a C1-22 linear or branched alkyl group, a C2-22 linear or branched alkenyl group, a C6 aryl group, a C7-22 aralkyl group, a halogen, OH or —OR6 wherein R6 is a C1-22 linear or branched alkyl group, a C2-22 linear or branched alkenyl group, a C6 aryl group, a C7-22 aralkyl group; R1 is hydrogen, or a C1-22 linear or branched alkyl or alkenyl group, a C6 aryl group or a C7-22 aralkyl group; R2-R4 is hydrogen, halogen, a linear or branched C6-12 alkyl group, —OR6 wherein R6 is a C1-22 linear or branched alkyl group, a C2-22 linear or branched alkenyl group, a C6 aryl group, or a C7-22 aralkyl group to form an aqueous phase comprised of iron and an organic phase comprised of the hydrocarbon solvent and a copType: GrantFiled: June 25, 2001Date of Patent: October 14, 2003Assignee: Cognis CorporationInventors: Sang I. Kang, Phillip L. Mattison, Michael J. Virnig, R. Brantley Sudderth, George A. Wolfe
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Patent number: 6623604Abstract: Methods of recovering free fatty acids having a low ester content from alkanol-containing solutions and oil mixtures containing tocopherols are disclosed which involve atmospheric or vacuum stripping at low temperatures. The recovered fatty acids have a high acid value, and have high commercial value in the production of high quality (high acid value) products, e.g., dimerized fatty acids, useful in polyamide resins.Type: GrantFiled: June 5, 2000Date of Patent: September 23, 2003Assignee: Cognis CorporationInventors: A. Fred Elsasser, C. William Blewett
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Patent number: 6613158Abstract: A chewing gum remover composition containing: (a) a C1-4 alkyl ester of a C6-22 saturated or unsaturated carboxylic acid; (b) a terpene; and (c) optionally, an oil-soluble surfactant, and wherein (a) and (b) are present in the composition in a ratio by weight of from about 10:1 to about 1:10.Type: GrantFiled: June 4, 2002Date of Patent: September 2, 2003Assignees: Cognis Corporation, Johnson Diversey, Inc.Inventors: Stephen F. Gross, David C. Sutton
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Patent number: 6599414Abstract: An improvement in the solvent extraction process for recovering metal values, i.e. copper, from acidic aqueous solutions containing copper and iron which may also include chloride, and more particularly to an improvement which provides for increased copper to iron ratios in the loaded organic extractant phase. The improvement comprises washing the loaded organic extractant phase prior to stripping of the copper values therefrom with an aqueous acidic wash solution containing at least a portion of electrolyte solution, wherein the wash solution or the electrolyte solution has been previously contacted with copper metal.Type: GrantFiled: August 7, 2001Date of Patent: July 29, 2003Assignee: Cognis CorporationInventors: Michael J. Virnig, G. Timothy Fisher
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Patent number: 6596053Abstract: A process for the recovery of copper from an aqueous phase containing nitrate ions, in which the aqueous phase is contacted with a solution of an oxime extractant in a water-immiscible organic solvent, which comprises using at least one of the following process variants: I) reducing the acidity of the aqueous phase prior to contact with the organic solution; and II) reducing the electromotive force in the aqueous phase prior to contact with the organic solution.Type: GrantFiled: January 15, 2002Date of Patent: July 22, 2003Assignee: Cognis CorporationInventors: Michael J. Virnig, Phillip L. Mattison, Hans C. Hein
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Patent number: 6586632Abstract: Quaternary ammonium dihydrogen phosphate or bisulfate salts are made by a process comprising the steps of: (1) forming a first mixture by contacting a quaternary ammonium halide with: (a) a water-insoluble organic solvent capable of forming a ternary azeotrope with water and hydrogen halide and (b) an amount of water and sulfuric acid or phosphoric acid sufficient to maintain the temperature of the first mixture in the range of from about 98° C. to about 105° C. when heated; (2) heating the first mixture to a temperature sufficient to separate a ternary azeotrope comprised of hydrogen halide, water and the water-insoluble organic solvent from the first mixture to form a second mixture comprised of water, sulfuric acid or phosphoric acid, the water-insoluble organic solvent and a quaternary ammonium dihydrogen phosphate or bisulfate salt.Type: GrantFiled: March 20, 2002Date of Patent: July 1, 2003Assignee: Cognis CorporationInventors: Phillip L. Mattison, Patrick M. McCurry, Jr.
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Patent number: 6583185Abstract: The products of the reaction of epichlorohydrin and compounds having the formula II R3(EO)n(PO)mOH (II) wherein R3 is an alkyl, alkenyl or arenyl group having from 4 to 22 carbon atoms; a substituted alkyl or alkenyl group having from 4 to 22 carbon atoms wherein; n is a number from 0 to 50 and m is a number from 0 to 50; wherein the mole ratio of epichlorohydrin to (II) is from about 0.60/1 to about 2/1 are used in defoaming compositions for defoaming aqueous systems such as latex paints.Type: GrantFiled: March 12, 2002Date of Patent: June 24, 2003Assignee: Cognis CorporationInventors: Michael S. Wiggins, Ronald W. Broadbent
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Patent number: 6576603Abstract: A surfactant composition containing: (a) from about 30 to about 70% by weight of an alkyl ether sulfate; (b) from about 0.1 to about 10% by weight of an alkyl polyglycoside of formula I: R1O(R2O)b(Z)a I wherein R1 is a monovalent organic radical having from about 6 to about 30 carbon atoms; R2 is a divalent alkylene radical having from 2 to 4 carbon atoms; Z is a saccharide residue having 5 or 6 carbon atoms; b is a number having a value from 0 to about 12; a is a number having a value from 1 to about 6; and (c) from about 0.1 to about 10% by weight of a salt, all weights being based on the total weight of the composition.Type: GrantFiled: November 15, 2001Date of Patent: June 10, 2003Assignee: Cognis CorporationInventors: George A. Smith, John F. Hessel, Christina M. Haas
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Patent number: 6576736Abstract: Products of the reaction between I) the reaction product of reactants comprising A) a linking agent of formula I R4(Y)3 (I) wherein each Y group is a halogen atom or one Y group is a halogen atom and two Y groups represent an oxygen atom, which is attached to two adjacent carbon atoms in the R4 group to form an epoxy group, and R4 is an alkanetriyl group containing from 3 to 10 carbon atoms; and B) a compound formula II R3(EO)n(PO)m(BO)pX (II) wherein R3 is a substituted or unsubstituted, saturated or unsaturated, aliphatic or araliphatic oxy or thio group having from 1 to 36 carbon atoms or a secondary amino group having from 2 to 36 carbon atoms; n is a number of from 0 to 50; m is a number of from 0 to 50; p is a number of from 0 to 50; and X is hydrogen, or X can be a mercapto group or an amino group in place of a terminal —OH group, provided that when X is mercapto or amino; the sum of n, m, and p must be at least 1; and the mole ratio of A:B is from about 0Type: GrantFiled: March 6, 2002Date of Patent: June 10, 2003Assignee: Cognis CorporationInventors: Michael S. Wiggins, Ronald W. Broadbent, Ramesh L. Narayan, Ayaz Khan
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Patent number: 6572691Abstract: Ink compositions containing a surfactant-effective and/or defoaming-effective quantity of at least one reaction product comprising the following reactants: A) at least one compound of formula I R1(X)3 (I) wherein each X group is a halogen atom or one X group is a halogen atom and two X groups represent an epoxy oxygen atom, which is attached to two adjacent carbon atoms in the R1 group to form an epoxy group, and R1 is an alkanetriyl group containing from 3 to 10 carbon atoms; and B) at least one compound having the formula II R2X(AO)nY (II) wherein R2 is a substituted or unsubstituted, saturated or unsaturated, organic group having from 1 to 36 carbon atoms; X is —O—, —S—, or NR33— where R3 is hydrogen or a C1-C18 group; each AO group is independently an ethyleneoxy, 1,2-propyleneoxy, or 1,2-butyleneoxy group, n is a number of from 0 to 200, preferably from 1 to 100, more preferably from 2 to 20; and Y is hydrogen, or Y can be a mercaptType: GrantFiled: August 28, 2002Date of Patent: June 3, 2003Assignee: Cognis CorporationInventors: David W. Brown, Kenneth Breindel, Ronald W. Broadbent, Michael S. Wiggins
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Patent number: 6569670Abstract: A fermentation medium containing: (a) a source of metabolizable carbon and energy; (b) a source of inorganic nitrogen; (c) a source of phosphate; (d) at least one metal selected from the group consisting of an alkali metal, an alkaline earth metal, a transition metal, and mixtures thereof; and (e) biotin, substantially free of particulate matter and bacteria. A fatty material may be added to an aqueous suspension containing at least one dicarboxylic acid to modify the rheological characteristics of the suspension.Type: GrantFiled: January 4, 2001Date of Patent: May 27, 2003Assignee: Cognis CorporationInventors: Kevin W. Anderson, J. Douglas Wenzel
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Patent number: 6566317Abstract: A process for inhibiting gel formation of a tablet-form detergent composition upon hydration, the process involving: (a) providing a detergent composition containing a surfactant component selected from the group consisting of an anionic surfactant, a nonionic surfactant, and mixtures thereof; (b) providing an anti-gelling agent selected from the group consisting of an alkyl polyglycoside, a polymeric surfactant, an alkyl sulfate, and mixtures thereof; and (c) mixing the surfactant with the anti-gelling prior to introducing the tablet-form detergent composition into water.Type: GrantFiled: April 10, 2001Date of Patent: May 20, 2003Assignee: Cognis CorporationInventors: Timothy C. Morris, Robert J. Valesky, Stephen F. Gross, Charles B. Allen
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Patent number: 6551524Abstract: A high quality lubricant for compressors operated during at least part of their compression cycle at temperatures above normal human comfort temperatures, such as most automotive air conditioners, especially those using chlorine free hydro-fluorocarbon refrigerant working fluids, is provided by mixed esters of hindered polyols, most desirably pentaerythritol, with a mixture of carboxylic acids including at least some iso-pentanoic acid along with one or more of iso-nonanoic acid, isooctanoic acid, and dibasic acids such as adipic. When the mixture includes about 7% adipic and amounts of branched C8-9 and C5 monobasic acids in a ratio of at least 0.75:1.00, the esters formed have excellent solubility for paraffinic and naphthenic mineral oils and are therefore especially well suited for lubricating vehicle air conditioners formerly containing chlorine containing heat transfer fluids and mineral oil lubricants.Type: GrantFiled: January 30, 2001Date of Patent: April 22, 2003Assignee: Cognis CorporationInventor: Nicholas E. Schnur
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Patent number: 6551976Abstract: A surfactant composition containing a mixture of at least two surfactants selected from the group consisting of anionics, nonionics, cationics, amphoterics, and mixtures thereof, wherein the surfactants have matching carbon chain length distributions in their hydrophobic groups.Type: GrantFiled: July 7, 1997Date of Patent: April 22, 2003Assignee: Cognis CorporationInventors: George A. Smith, Michael Hansberry, Stephen F. Gross