Assignee: Great Lakes Chemical Corp.

Location: W.Lafayette, IN
No. of patents: 39

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Number	Title	Issue Date
6248700	Carboxylate-based well bore treatment fluids This invention relates to novel compositions and methods whereby a carboxylate based brine solution is used in drilling and/or well bore treating operations to inhibit corrosion of fluid handling equipment. In one embodiment of the invention the carboxyla...	06/19/2001
5981239	Synthesis of optically active phenylalanine analogs using Rhodotorula graminis A biocatalytic process to produce optically active phenylalanine analogs from arylacrylic acids is disclosed in which Rhodotorula graminis yeast containing phenylalanine ammonia-lyase introduces a molecule of ammonia stereoselectively onto the double bond...	11/09/1999
5484839	Flame retardant brominated styrene graft latex compositions Flame retardant latex compositions are disclosed which include natural or synthetic latex grafted with ring-halogenated, ethylenically unsaturated aromatic monomers. The graft latex is used alone or in combination with non-grafted natural or synthetic lat...	01/16/1996
5481042	Processes producing methyl mercaptan Described are preferred processes which produce methyl mercaptan from methyl bromide and aqueous mediums of metal hydrosulfide. The processes can be used to simultaneously consume methyl bromide byproduct and aqueous NaSH byproduct while producing methyl ...	01/02/1996
5475153	Process to produce tetrabromobisphenol with the reduced formation of alkyl bromide by-products A process for the preparation of 4,4'-isopropylidene bis(2,6-dibromophenol), also known as tetrabrombisphenol A, that dramatically reduces the formation of alkyl bromide by-products. Bisphenol A is brominated with a C3 to C5 n-alcoho...	12/12/1995
5461077	Use of perbromides to control diseases in plants A method for controlling diseases in plants, comprising applying to the roots or leaves of the plant a water-soluble, mono- or di-substituted ammonium perhalide of the formula: ##STR1## where R1 and R2 are independently hydrogen...	10/24/1995
5457248	Brominated diphenylalkane products and processes Described are processes for preparing brominated diphenylalkane products which are far whiter than prior known brominated diphenylalkane products. The resultant white brominated diphenylalkane products also form a part of the present invention, as do form...	10/10/1995
5446212	Reduced methyl bromide process for making tetrabromobisphenol-A A reduced methyl bromide process for making tetrabromobisphenol A in methanol, including: dissolving bisphenol-A in a methanol solvent to form a bisphenol-A methanol solution, adding bromine to the bisphenol-A methanol solution to brominate bisphenol-A an...	08/29/1995
5422126	Halogen compositions for water treatment and method of preparation thereof A method for providing aqueous solutions of HOBr or HOCl which includes adding bleach (NaOCl) to a solution of HBr or HCl until an identified absorbance or color change in the resulting solution is detected. Dialkylhydantoins are optionally added to the r...	06/06/1995
5416107	Synergistic antimicrobial compositions containing 2-(2-bromo-2-nitroethenyl)furan Synergistic compositions for inhibiting microbial growth contain synergistic mixtures including 2-(2-bromo-2-nitroethenyl)furan ("BNEF") and a compound selected from the group consisting of beta-nitrostyrene ("NS"), beta-bromo-beta-nitrostyrene ("BNS"), m...	05/16/1995
5416108	Synergistic antimicrobial compositions containing 2-(2-bromo-2-nitroethenyl)furan Synergistic compositions for inhibiting microbial growth contain synergistic mixtures including 2-(2-bromo-2-nitroethenyl)furan ("BNEF") and a compound selected from the group consisting of beta-nitrostyrene ("NS"), beta-bromo-beta-nitrostyrene ("BNS"), m...	05/16/1995
5358963	Synergistic antimicrobial compositions containing 2-(2-bromo-2-nitroethenyl) furan Synergistic compositions for inhibiting microbial growth contain synergistic mixtures including 2-(2-bromo-2-nitroethenyl)furan ("BNEF") and a compound selected from the group consisting of beta-nitrostyrene ("NS"), beta-bromo-beta-nitrostyrene ("BNS"), m...	10/25/1994
5352844	Isolation of partially brominated diphenyl ether mixtures in crystalline form with higher melting range This invention relates to a process for isolation of partially brominated diphenyl ether mixtures ("Octabrom") having an average bromine content of 7.2-8.5. The process comprises: (i) adding a C1 -C4 alkanol to the Octabrom in soluti...	10/04/1994
5346938	Smoke suppressed flame retardant unsaturated polyester resin compositions Smoke suppressed flame retardant thermoset resin compositions comprise smoke suppressant bicyclic phosphate compound(s), flame retardant(s) and unsaturated polyester or other thermoset materials. These compositions exhibit a reduced tendency to smoke unde...	09/13/1994
5328983	Process for purifying brominated polystyrene The invention relates to a process for the purification of brominated styrenic homo-polymers and co-polymers. The purification process reduces or removes contained aliphatic bromine, and free bromine resulting from the reaction of the brominated reagent w...	07/12/1994
5317048	Ultra white N,N'-ethylene-bis(tetrabromophthalimide) and its production in acetic acid Disclosed is a process for producing an ultra-white N,N'-ethylene-bis(tetrabromophthalimide) product useful as a flame retardant. Also disclosed is a flame retardant composition predominantly comprised of N,N'-ethylene-bis(tetrabromophthalimide) and havin...	05/31/1994
5314682	Ozone friendly sterilant mixture Non-ozone depleting sterilant compositions made of ethylene oxide and 1,1,1,2,3,3,3-heptafluoropropane. These compositions provide good sterilization characteristics, and are compatible with contemporary environmental concerns. One preferred aspect of the...	05/24/1994
5314926	Hydrofluorocarbon compositions as blowing agents for cellular plastics Blowing agents for use in foamable plastics such as polystyrene, polyvinyl chloride, polyethylene and other non-polyisocyanate-based foams, comprising a mixture of 1,1,1,2,3,3,3-heptafluoropropane in combination with one or more hydrocarbons or partially ...	05/24/1994
5304618	Polymers of brominated styrene A process for the solventless polymerization of brominated styrenes includes blending monomers of brominated styrenes with a polymerization initiator, feeding the monomer/polymerization initiator mix into a prepolymerizer wherein the monomers begin to pol...	04/19/1994
5296306	Flame retardant brominated styrene graft latex coatings Flame retardant latex coatings are disclosed which include natural or synthetic latex grafted with ring-halogenated, ethylenically unsaturated aromatic monomers. The grafted latex is used alone or in combination with non-grafted natural or synthetic latex...	03/22/1994
5290636	Flame retardant brominated styrene-based coatings Improved flame retardant latex coatings are disclosed which comprise copolymers of ring-halogenated aromatic monomer units and alkyl acrylate/methacrylate monomer units, and which may additionally include at least one other monomer. In a first embodiment,...	03/01/1994
5278196	Hydrofluorocarbon compositions as blowing agents for cellular plastics Blowing agents for use in foamable plastics such as polystyrene, polyvinyl chloride, polyethylene and other non-polyisocyanate-based foams, comprising a mixture of 1,1,1,2,3,3,3-heptafluoropropane in combination with one or more hydrocarbons or partially ...	01/11/1994
5276006	Cryoprotectant composition Aqueous plant cryoprotectant composition containing between about 0.005 and 25 wt. % tetrahydrofurfuryl alcohol, tetrahydrofurfuryl amine or mixtures thereof and method of increasing the resistance of plant tissue to damage caused by freezing conditions c...	01/04/1994
5264136	Methods for generating residual disinfectants during the ozonization of water Methods and compositions for generating stable, residual disinfectants during the ozonization of water, comprising the carrying out the ozonization of water in the presence of bromide ions and an effective amount of a hypobromite ion scavenger possessing ...	11/23/1993
5246963	Synergistic antimicrobial compositions containing 2-(2-bromo-2-nitroethenyl)furan Synergistic compositions for inhibiting microbial growth contain synergistic mixtures including 2-(2-bromo-2-nitroethenyl)furan ("BNEF") and a compound selected from the group consisting of beta-nitrostyrene ("NS"), beta-bromo-beta-nitrostyrene ("BNS"), m...	09/21/1993
5244864	Methods for protection and treatment of plants exposed to chilling temperatures Method for the protection of plant tissue from damage upon exposure to chilling temperatures, and to assist plant tissue in recovering from chilling injury, include the application of an effective amount of chilling-protectant compositions selected from t...	09/14/1993
5224982	Methods and compositions for treating plants exposed to water deprivation stress Methods and compositions for the protection of plant tissue from damage upon exposure to certain environmental and handling stresses, and to assist plant tissue in recovering from environmental and handling stress injuries, include the application of an e...	07/06/1993
5224981	Methods and compositions for treating plants exposed to salt Methods and compositions for the protection of plant tissue from damage upon exposure to chemical stresses, and to assist plant tissue in recovering from chemical stress injuries, include the application of an effective amount of chemical stress-protectan...	07/06/1993
5219936	High impact PVC/polycarbonate alloy compositions A preferred rigid thermoplastic resin composition having high impact strength and resistance to thermal distortion includes a vinyl chloride resin/polycarbonate alloy and at least 3 parts by weight of butadiene-modified acrylic per 100 parts by weight of ...	06/15/1993
5216059	Flame retardant additive composition useful with polyolefins A flame retarding additive composition, useful in thermoplastic polyolefins, is disclosed comprising a mixture of a halogenated bisphenol derivative and the copolymer of a halogenated vinyl aromatic grafted onto polyolefin. The preferred bisphenol derivat...	06/01/1993
5144087	Process for the preparation of dibromonitro-alcohols and blends with dibromonitro-alcohols A process for preparing dibromonitro-alcohols, and mixtures thereof with bromonitro-alcohols, is disclosed in which dibromonitromethane, and optionally bromonitroethane, is reacted with a C1 -C3 aldehyde in aqueous solution at an aci...	09/01/1992
5138076	Process for the preparation of 2-(2-bromo-2-nitroethenyl)furan Bromonitroethenylfuran (BNEF) is prepared from furfural in a two-step process. A primary amine is reacted with furfural in an organic solvent at the reflux temperature of the solvent to form the Schiff base. The organic solvent and the water formed in the...	08/11/1992
5124404	Flame retardant polypropylene molding compositions Described are polypropylene molding compositions which have surprisingly good physical properties in combination with flame retardancy, which include copolymers represented by the formula: ##STR1## wherein n is >1, P is isotactic or syndiotactic poly...	06/23/1992
5122301	Antimicrobial compositions containing propylene carbonate and/or ethylene carbonate as the carrier solvent Antimicrobial compositions of bromonitrostyrene or system comprising propylene carbonate, ethylene carbonate bromonitroethenylfuran are formed in a carrier solvent or mixtures thereof. The propylene carbonate system may additionally include tetrahydrofurf...	06/16/1992
5113947	Fire extinguishing methods and compositions utilizing 2-chloro-1,1,1,2-tetrafluoroethane Methods for extinguishing fires are disclosed which include the use of 2-Chloro-1,1,1,2-tetrafluoroethane as a fire extinguishing agent. The 2-Chloro-1,1,1,2-tetrafluoroethane may be used alone or in combination with other halogenated hydrocarbon fire ext...	05/19/1992
4784778	Corrosion inhibiting composition for zinc halide-based clear, high density fluids Thio group corrosion inhibitors and aldose group antioxidants when combined provide a synergistic corrosion inhibition system for clear, high density oil and gas completion and workover fluids....	11/15/1988
4784779	Corrosion inhibitors for clear, calcium-free high density fluids The present invention relates to corrosion inhibitors which can be used with calcium-free drilling, completion and workover fluids in carbonate or sulfate containing wells. More particularly, the invention relates to the use of sodium, ammonium and/or cal...	11/15/1988
4762625	Viscosifiers for brines utilizing hydrophilic polymer-mineral oil systems Alkali and alkaline earth metal and zinc halide brines may be viscosified with compositions incorporating a viscosity inducing hydrophilic polymer, mineral oil, oil soluble non-ionic surfactants, polar solvents, and diluent....	08/09/1988
4249024	In situ conductimetric end point determination of the oxyethylation of phenolic compounds The present invention discloses an improved method for the in situ end point determination of the oxyethylation of phenols. In the present invention, the oxyethylation reactions occur in the presence of catalysts and at temperatures in excess of 100° C. ...	02/03/1981

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Assignee: Great Lakes Chemical Corp.