Patents by Inventor Keith Bair
Keith Bair 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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Publication number: 20070270547Abstract: The present invention relates to cement dispersant that is a copolymerization product of a first monomer (A) comprising a carboxylic acid, a second monomer (B) comprising an alkoxylated allyl alcohol sulfate, and, optionally, a third monomer (C) comprising an alkoxylated allyl alcohol. The cement dispersant according to the invention provides improved slump life properties and water reduction properties in cement admixtures.Type: ApplicationFiled: August 8, 2007Publication date: November 22, 2007Applicant: GEO SPECIALTY CHEMICALS, INC.Inventors: Keith Bair, Arpad Savoly, Bennie Veal
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Patent number: 7271214Abstract: The present invention relates to cement dispersant that is a copolymerization product of a first monomer (A) comprising a carboxylic acid, a second monomer (B) comprising an alkoxylated allyl alcohol sulfate, and, optionally, a third monomer (C) comprising an alkoxylated allyl alcohol. The cement dispersant according to the invention provides improved slump life properties and water reduction properties in cement admixtures.Type: GrantFiled: June 23, 2004Date of Patent: September 18, 2007Assignee: GEO Specialty Chemicals, Inc.Inventors: Keith A. Bair, Arpad Savoly, Bennie Veal
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Patent number: 6869998Abstract: A dispersant for use with concrete or cement, and a concrete or cement admixture that comprises a cementitious material, water, and the dispersant. The dispersant includes a polymeric derivative of carboxylic acid, and has a sulfur-containing moiety that is covalently bonded thereto. Adding the dispersant to the cementitious material and water improves the rheological properties of the admixture.Type: GrantFiled: June 23, 2003Date of Patent: March 22, 2005Assignee: GEO Specialty Chemicals, Inc.Inventors: Keith A. Bair, Arpad Savoly, Bennie Veal
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Publication number: 20050009959Abstract: The present invention relates to cement dispersant that is a copolymerization product of a first monomer (A) comprising a carboxylic acid, a second monomer (B) comprising an alkoxylated allyl alcohol sulfate, and, optionally, a third monomer (C) comprising an alkoxylated allyl alcohol. The cement dispersant according to the invention provides improved slump life properties and water reduction properties in cement admixtures.Type: ApplicationFiled: June 23, 2004Publication date: January 13, 2005Applicant: GEO Specialty Chemicals, Inc.Inventors: Keith Bair, Arpad Savoly, Bennie Veal
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Publication number: 20040259982Abstract: A dispersant for use with concrete or cement, and a concrete or cement admixture that comprises a cementitious material, water, and the dispersant. The dispersant includes a polymeric derivative of carboxylic acid, and has a sulfur-containing moiety that is covalently bonded thereto. Adding the dispersant to the cementitious material and water improves the rheological properties of the admixture.Type: ApplicationFiled: June 23, 2003Publication date: December 23, 2004Inventors: Keith A. Bair, Arpad Savoly, Bennie Veal
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Patent number: 6590050Abstract: The present invention relates to compositions and use of water-soluble or water-dispersible copolymers for oil field applications. Specifically, the present invention relates to polymers containing allyloxy linkage andits functional dervatives for use in oil field applications as fluid additives for drilling and cementing processes.Type: GrantFiled: August 20, 2002Date of Patent: July 8, 2003Assignee: Hercules IncorporatedInventors: Keith A. Bair, Fu Chen, Mohand Melbouci, Teng-Shau Young, De-Kai Loo
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Patent number: 6465587Abstract: The present invention relates to compositions and use of water-soluble or water-dispersible copolymers for oil field applications. Specifically, the present invention relates to polymers containing allyloxy linkage and its functional dervatives for use in oil field applications as fluid additives for drilling and cementing processes.Type: GrantFiled: December 8, 2000Date of Patent: October 15, 2002Assignee: Hercules IncorporatedInventors: Keith A. Bair, Fu Chen, Mohand Melbouci, Teng-Shau Young, De-Kai Loo
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Patent number: 5789488Abstract: Disclosed are methods for reducing turbidity of aqueous systems and clarifying wastewater systems utilizing a graft copolymer having the structure: ##STR1## whereby the cationic monomer (F) is represented by ##STR2## wherein R is hydrogen or a C.sub.1 to C.sub.3 alkyl group, R.sub.1 is the salt of an ammonium cation, and the molar percentage of a:b is from about 95:5 to about 5:95, with the proviso that the sum of a and b equals 100%.Type: GrantFiled: June 25, 1996Date of Patent: August 4, 1998Assignee: BetzDearborn Inc.Inventors: Keith A. Bair, Elizabeth V. Bissinger, Ellen M. Meyer
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Patent number: 5575924Abstract: Disclosed are methods for reducing turbidity of aqueous systems and clarifying wastewater systems utilizing a graft copolymer having the structure: ##STR1## whereby the cationic monomer (F) is represented by ##STR2## wherein R is hydrogen or a C.sub.1 to C.sub.3 alkyl group, R.sub.1 is the salt of an ammonium cation, and the molar percentage of a:b is from about 95:5 to about 5:95, with the proviso that the sum of a and b equals 100%.Type: GrantFiled: May 4, 1995Date of Patent: November 19, 1996Assignee: BetzDearborn Inc.Inventors: Keith A. Bair, Elizabeth V. Bissinger, Ellen M. Meyer
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Patent number: 5575920Abstract: A method for simultaneously controlling the deposition of scale and the formation of corrosion in a cooling water system consisting of adding to the system a water soluble copolymer having the structure: ##STR1## wherein R.sub.1 is H or lower (C.sub.1 -C.sub.4) alkyl, F is H.sub.2 or O, M is a water soluble cation, R.sub.2 is (CH.sub.2 --CH.sub.2 --O).sub.n, ##STR2## or mixture of both, n is an integer of from 1 to about 40, R.sub.3 is H, lower (C.sub.1 -C.sub.4) alkyl or an acetate.Type: GrantFiled: September 18, 1995Date of Patent: November 19, 1996Assignee: BetzDearborn Inc.Inventors: Donald T. Freese, Libardo A. Perez, Keith A. Bair, Fu Chen
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Patent number: 5527468Abstract: A treatment for controlling the deposition of scale imparting species on the structural surfaces of steam generating systems, wherein the aqueous medium is maintained at a pH which minimizes magnetite solubility, comprising the use of a combination of an organic amine and a nonionic polymer having the structure: ##STR1## wherein R.sub.1 is H or lower (C.sub.1 -C.sub.4) alkyl, R.sub.2 is (CH.sub.2 --CH.sub.2 --O).sub.n, ##STR2## or a mixture of both, n is an integer of from 1 to about 40, and R.sub.3 is H, lower (C.sub.1 -C.sub.4) alkyl or an acetate.Type: GrantFiled: December 20, 1994Date of Patent: June 18, 1996Assignee: Betz Laboratories, Inc.Inventors: Scott M. Boyette, Keith A. Bair, Fu Chen
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Patent number: 5445758Abstract: A composition for controlling the deposition of scale imparting species on the structural surfaces of steam generating systems comprising the use of a water soluble polymer having the structure ##STR1## wherein R.sub.1 is H or lower (C.sub.1 -C.sub.4) alkyl, R.sub.2 is (CH.sub.2 --CH.sub.2 --O).sub.n, ##STR2## or a mixture of both, and n is an integer of from about 1 to about 40, R.sub.3 is H, lower (C.sub.1 -C.sub.4) alkyl or an acetate. This polymer may also be used in concert with topping agents such as phosphoric acids, phosphonic acids, amines, metal chelating agents and oxygen scavengers.Type: GrantFiled: June 7, 1994Date of Patent: August 29, 1995Assignee: Betz Laboratories, Inc.Inventors: Fu Chen, Keith A. Bair, Scott M. Boyette
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Patent number: 5350536Abstract: A composition for controlling the deposition of scale imparting species on the structural surfaces of steam generating systems comprising the use of a water soluble polymer having the structure ##STR1## wherein R.sub.1 is H or lower (C.sub.1 14 C.sub.4) alkyl, R.sub.2 is (CH.sub.2 --CH.sub.2 --O).sub.n, ##STR2## or a mixture of both, and n is an integer of from about 1 to about 40, R.sub.3 is H, lower (C.sub.1-C.sub.4) alkyl or an acetate. This polymer may also be used in concert with topping agents such as phosphoric acids, phosphonic acids, amines, metal chelating agents and oxygen scavengers.Type: GrantFiled: April 27, 1993Date of Patent: September 27, 1994Assignee: Betz Laboratories, Inc.Inventors: Fu Chen, Keith A. Bair, Scott M. Boyette
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Patent number: 5271847Abstract: A method for controlling the deposition of silica on the structural surfaces of steam generating systems comprising the use of a water soluble polymer having the structure ##STR1## wherein E is the repeat unit remaining after polymerization of an alpha, beta ethylenically unsaturated compound.This polymer may also be used in concert with topping agents such as phosphoric acids, phosphonic acids, polyvalent metal salts, metal chelating agents and oxygen scavengers.Type: GrantFiled: October 6, 1992Date of Patent: December 21, 1993Assignee: Betz Laboratories, Inc.Inventors: Fu Chen, Scott M. Boyette, Keith A. Bair
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Patent number: 5242599Abstract: A method for controlling the deposition of scale imparting species on the structural surfaces of steam generating systems comprising the use of a water soluble polymer having the structure ##STR1## wherein R.sub.1 is H or lower (C.sub.1 -C.sub.4) alkyl, R.sub.2 is (CH.sub.2 --CH.sub.2 --O).sub.n, ##STR2## or a mixture of both, and n is an integer of from about 1 to about 40, R.sub.3 is H, lower (C.sub.1 -C.sub.4) alkyl or an acetate. This polymer may also be used in concert with topping agents such as phosphoric acids, phosphonic acids, amines, metal chelating agents and oxygen scavengers.Type: GrantFiled: February 7, 1992Date of Patent: September 7, 1993Assignee: Betz Laboratories, Inc.Inventors: Fu Chen, Keith A. Bair, Scott M. Boyette
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Patent number: 5183576Abstract: A method of dewatering sludge is disclosed. This method comprises adding to the sludge an effective amount for the purpose of a polymer comprising repeat unit moieties of the compound methacryloyloxyethyl trimethyl ammonium chloride, said polymer having an intrinsic viscosity of about 1.0 to about 4.5 dl/g.Type: GrantFiled: August 9, 1991Date of Patent: February 2, 1993Assignee: Betz Laboratories, Inc.Inventors: Michael R. Wood, Keith A. Bair, Fu Chen, Stephen R. Vasconcellos
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Patent number: 5180498Abstract: A method for controlling the deposition of scale imparting species on the structural surfaces of steam generating systems comprising the use of a water soluble polymer having the structure ##STR1## wherein E is the repeat unit remaining after polymerization of an alpha, beta ethylenically unsaturated compound.This polymer may also be used in concert with topping agents such as phosphoric acids, phosphonic acids, polyvalent metal salts, metal chelating agents and oxygen scavengers.Type: GrantFiled: January 28, 1992Date of Patent: January 19, 1993Assignee: Betz Laboratories, Inc.Inventors: Fu Chen, Scott M. Boyette, Keith A. Bair
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Patent number: 5100561Abstract: A method of dewatering sludge is disclosed. This method comprises adding to the sludge an effective amount for the purpose of a polymer comprising repeat unit moieties of the compound methacryloxyethyl trimethyl ammonium chloride, said polymer having an intrinsic viscosity of about 1.0 to about 4.5 dl/g.Type: GrantFiled: June 6, 1990Date of Patent: March 31, 1992Assignee: Betz Laboratories, Inc.Inventors: Michael R. Wood, Keith A. Bair, Fu Chen, Stephen R. Vasconcellos
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Patent number: 4886617Abstract: Novel water soluble polymers containing an hydroxyl alkyl aminoalkylene phosphonate functionality are disclosed. These polymers have utility as deposit control agents effective in a number of water systems such as cooling, boilers conversion coating, paper and pulp processing and gas scrubbing.The polymers are formed from the polymerization of ethylenically unsaturated compounds with a compound having the structure: ##STR1## in which R.sub.1 is an hydroxyl substituted or nonsubstituted lower alkylene group, R.sub.2 is H or lower alyl group, R.sub.3 is a lower alkylene group and M is H or water soluble cation.Type: GrantFiled: May 19, 1989Date of Patent: December 12, 1989Assignee: Betz Laboratories, Inc.Inventors: Fu Chen, Keith Bair
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Patent number: 4851490Abstract: Novel water soluble polymers containing an hydroxyl alkyl aminoalkylene phosphonate functionality are disclosed. These polymers have utility as deposit control agents effective in a number of water systems such as cooling, boilers conversion coating, paper and pulp processing and gas scrubbing.The polymers are formed from the polymerization of ethylenically unsaturated compounds with a compound having the structure: ##STR1## in which R.sub.1 is an hydroxyl substituted or nonsubstituted lower alkylene group, R.sub.2 is H or lower alkyl group, R.sub.3 is a lower alkylene group and M is H or water soluble cation.Type: GrantFiled: February 21, 1989Date of Patent: July 25, 1989Assignee: Betz Laboratories, Inc.Inventors: Fu Chen, Keith A. Bair