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| Number | Title | Issue Date |
| 6689924 | Liquid phase catalytic fluorination of hydrochlorocarbon and hydrochlorofluorocarbon A process for the catalytic fluorination of hydrochlorocarbons and hydrochlorofluorocarbons in the liquid phase. The process is useful for fluorinating hydrochloropropanes, hydrochlorofluoropropanes, hydrochloropropenes and hydrochlorofluoropropenes and m... | 02/10/2004 |
| 6686326 | Azeotrope-like compositions or pentafluorobutane Disclosed are azeotrope-like compositions comprising 1,1,1,3,3-pentafluorobutane, water and a hydrocarbon selected from the group consisting of n-pentane, isopentane, cyclopentane, n-hexane, and isohexane., said compositions are environmentally desirable ... | 02/03/2004 |
| 6680116 | Luminescent fiber production thereof and use thereof A luminescent fiber is described comprising at least one fiber-forming material with at least one inorganic luminophor pigment dispersed therein, characterized in that the inorganic luminophor pigment has an average particle size of about 1 to 30 pm, and ... | 01/20/2004 |
| 6660238 | Preparation and purification of diborane BF3 CO2 or both are removed from a mixture containing these gases with B2 H6 by contacting the mixture with an inorganic hydroxide such as LiOH. B2 H6 is synthesized by contacting BF3... | 12/09/2003 |
| 6638987 | Azeotrope-like compositions of tetrafluoroethane, pentafluoropropane and water This invention provides azeotrope-like compositions of 1,1,1,2-tetrafluoroethane, 1,1,1,3,3-pentafluoropropane-245fa and water that are environmentally desirable for use as refrigerants, aerosol propellants, metered dose inhalers, blowing agents for polym... | 10/28/2003 |
| 6635686 | Azeotrope-like compositions of tetrafluoroethane, pentafluoropropane and methylbutane This invention provides azeotrope-like compositions of 1,1,1,2-tetrafluoroethane, 1,1,1,3,3-pentafluoropropane-245fa and 2-methylbutane that are environmentally desirable for use as refrigerants, aerosol propellants, metered dose inhalers, blowing agents ... | 10/21/2003 |
| 6630610 | Method of producing fluorinated organic compounds A process for producing a fluorinated organic compound comprising: (a) reacting an organic starting material with a fluorination agent in the presence of a liquid fluorination catalyst under conditions which are effective to vaporize one or more chlorinat... | 10/07/2003 |
| 6596910 | Process for the manufacture of fluorocarbons Disclosed is an improved HFC manufacturing processes of the type which produces an intermediate product stream that includes a mixture of HF and at least one compound, usually an HCFC, which is relatively resistant to further fluorination. The improvement... | 07/22/2003 |
| 6586488 | Azeotrope-like compositions of 1,1,1,3,3-pentafluoropropane and hydrocarbons Azeotrope-like compositions of 1,1,1,3,3-pentafluoropropane and at least one hydrocarbon selected from the group n-pentane, iso-pentane, cyclopentane, n-hexane and iso-hexane are provided. The compositions of the invention are useful in the preparation of... | 07/01/2003 |
| 6576153 | Hydrofluorocarbon refrigerants for use in centrifugal chillers This invention relates to hydrofluorocarbons useful in refrigeration and heat pump applications. The invention provides hydrofluorocarbons selected from the group of 1,1,2,3,3-pentafluoropropane, 1,1,1,3,3-pentafluoropropane, 1,1,1,2,3-pentafluoropropane,... | 06/10/2003 |
| 6545063 | Hydrofluorocarbon blown foam and method for preparation thereof The invention relates to the addition of -methyl styrene, isobutanol and/or isopropanol to reduce vapor pressure, improve k-factor, enhance the solubility of the blowing agent in the premix and/or improve the processing characteristics of polyureth... | 04/08/2003 |
| 6526764 | Hydrofluorocarbon refrigerant compositions soluble in lubricating oil Hydrofluorocarbon refrigerants are not soluble in hydrocarbon oil. Retrofitting refrigeration equipment with hydrofluorocarbons generally entails the use of expensive polyol ester (POE) lubricants. The invention provides hydrofluorocarbon refrigerant comp... | 03/04/2003 |
| 6524496 | Azeotrope-like composition of 1,1,1,3,3-pentafluoropropane and 1-chloro-1,1,3,3,3-pentafluoropropane Provided are azeotropic and azeotrope-like mixtures of 1,1,1,3,3-pentafluoropropane (HFC-245fa) and 1-chloro-1,1,3,3,3-pentafluoropropane (HCFC-235fa) that are useful as intermediates in the production of HFC-245fa. A process for separating HFC-245fa... | 02/25/2003 |
| 6516837 | Method of introducing refrigerants into refrigeration systems Provided are methods of introducing environmentally desirable refrigerants into refrigeration systems. The present methods involve recharging a refrigerant system that contains a chlorine-containing refrigerant and a lubricant comprising the steps of (a) ... | 02/11/2003 |
| 6517796 | Preparation and purification of diborane BF3, CO2 or both are removed from a mixture containing these gases with B2 H6 by contacting the mixture with an inorganic hydroxide such as LiOH. B2 H6 is synthesized by contacting BF3... | 02/11/2003 |
| 6500359 | Azeotrope-like compositions of pentafluoropropane, hydrocarbons and water This invention provides compositions of 1,1,1,3,3-pentafluoropropane, water and at least one hydrocarbon selected from the group consisting of n-pentane, isopentane, cyclopentane and hexane that are environmentally desirable for use as refrigerants, aeros... | 12/31/2002 |
| 6488817 | Purification of hydrofluorocarbons A process for the purification of difluoromethane comprising: (a) subjecting a mixture comprising at least difluoromethane (HFC-32) and dichlorodifluoromethane (CFC-12) to a first distillation step in which a majority of either CFC-12 or HFC-32 is concentrated... | 12/03/2002 |
| 6476248 | Hydroxythiol grignard reaction synthesis A method for the preparation of hydroxythiol compounds by reacting a hydroxyl-protected halide compound having the structure: X--R--OPg with magnesium in a Grignard-suitable solvent to form a hydroxyl-protected magnesium halide compound, wherein R is selected ... | 11/05/2002 |
| 6420606 | Method for producing alkoxy arylamine compounds Disclosed are methods of producing of alkoxy arylamine compounds which find particular use in the syntheses of pharmaceutical drug. The alkoxy arylamine compounds generally have the formula: H2 N--Ar--OR wherein Ar is an unsubstituted or substituted... | 07/16/2002 |
| 6417413 | Process for the preparation of halogenated ethanes A process for preparing halogenated ethanes, particularly pentafluoroethane, from a mixture produced by the reaction of perchloroethylene, hydrogen fluoride and a recycle stream. The preferred process utilizes phase separation techniques to ensure that le... | 07/09/2002 |
| 6395522 | Biologically active support containing bound adsorbent particles and microorganisms for waste stream purification A biologically active support is provided for removal of pollutants such as aliphatics, aromatics, heteroaromatics and halogenated derivatives from waste streams. The support contains a particulate adsorbent such as activated carbon bound by a polymer bin... | 05/28/2002 |
| 6369178 | Poly (chlorotrifluoroethylene/vinylidenefluoride/vinylester) copolymers with excellent long-term ultraviolet light resistance A composition containing a non-flammable chlorofluoro-olefin copolymer having a crystallinity index less than about 10% and a weight-average molecular weight greater than about 1,000,000 daltons, wherein the copolymer has at least two comonomer units of t... | 04/09/2002 |
| 6365566 | Azeotrope-like compositions of pentafluorobutane and water This invention provides azeotropic and azeotrope-like compositions of 1,1,1,3,3-pentafluorobutane and water that are environmentally desirable for use as blowing agents and solvents.... | 04/02/2002 |
| 6365580 | Process for the production of difluoromethane The present invention provides a vapor phase process for the production of difluoromethane, HFC-32. The process of this invention provides for the preparation of HFC-32 by a process that exhibits both good product yield and selectivity.... | 04/02/2002 |
| 6338255 | Refrigerant charging device A device for recharging an a/c system with dye containing refrigerant using recovery/recycle/recharging equipment. The device connects to the recovery/recycle/recharging equipment so as to allow the refrigerant/dye mixture to bypass the purification proce... | 01/15/2002 |
| 6308001 | Radiation curable fluorinated vinyl ethers derived from hexafluoropropene Vinyl ether compounds having the formula: R--O--X--O--CH.dbd.CH2 wherein R is a radical having the formula: R1 --CFH--CF2 -- or R1 --CF.dbd.CF--, wherein R1 is an unsubstituted or substituted aliphatic rad... | 10/23/2001 |
| 6303822 | Aromatic hydroxythiol synthesis using diazonium salts A method for the preparation of aromatic hydroxythiols including oxidizing an aromatic aminothiol to form an aminodisulfide compound; forming a bis-diazonium salt of the aminodisulfide compound; and reacting the bis-diazonium salt with water to form an ar... | 10/16/2001 |
| 6300532 | Process for addition of haloalkanes to alkenes catalyzed by an organophosphite compound A process for catalytic addition of haloalkanes to alkenes involving the step of reacting the haloalkane with the alkene in the presence of a catalyst. The catalyst is an organophosphite compound represented by the following formula: P(ORa)(OR | 10/09/2001 |
| 6296981 | Use of fluorocarbons as a fusing agent for toners in laser printers A method and composition for fusing toner to paper using hydrofluorocarbons or perfluorinated C1 -C4 alkyl alkyl ethers as a toner fusing agent in a cold fusion process. The composition utilizes a uniform mixture of at least one chlo... | 10/02/2001 |
| 6291704 | Polymerizable halogenated vinyl ethers Vinyl ether compounds having the formula: R--O--X--O--CH.dbd.CH2 wherein R is a radical selected from R1 --Cn Hm --, R1 --Cn Hm --C(.dbd.O)--, R1 --Cn Hm ... | 09/18/2001 |
| 6288135 | Azeotrope-like compositions of pentafluoropropane, hydrocarbons and water This invention provides compositions of 1,1,1,3,3-pentafluoropropane, water and at least one hydrocarbon selected from the group consisting of n-pentane, isopentane, cyclopentane and hexane that are environmentally desirable for use as refrigerants, aeros... | 09/11/2001 |
| 6268540 | Catalyst and process for the fluorination of hydrohalomethanes The present invention provides catalysts and processes for the fluorination of hydrohalomethanes. In particular, the invention provides a process for the fluorination of hydrohalomethanes using hydrogen fluoride and a Lewis Acid catalyst. More specificall... | 07/31/2001 |
| 6268307 | Titania bound sodium titanate ion exchanger A titania bound ion exchange composition is prepared by admixing crystalline sodium titanate and a hydrolyzable titanium compound and then drying the titania bound crystalline sodium titanate. The dried titania bound ion exchange composition is subjected ... | 07/31/2001 |
| 6265616 | Manufacture of trifluorisopropylamine The invention provides a process for preparing trifluoroisopropylamine. Trifluoroisopropylamine is produced by reducing trifluoroacetone oxime with hydrogen, in the vapor phase, in the presence of a reduction catalyst. Trifluoroisopropylamine is useful in... | 07/24/2001 |
| 6235950 | Method of making hydrofluorocarbons A method of producing hydrofluorocarbons and methods of producing other commercially attractive compounds formed as by-products of hydrofluorocarbon production by using ketones as a principal reactant.... | 05/22/2001 |
| 6231656 | Release agents for use in lignocellulosic processes and process for preparing molded lignocellulosic composites The invention provides improved release agents used in processes for preparing molded lignocellulosic articles. The release agents are preferably applied as an emulsion in processes for preparing molded articles such as oriented strand board, waferboard o... | 05/15/2001 |
| 6096822 | Low molecular weight polyester or polyamide pigment dispersing composition and color concentrate for the manufacture of colored polymers The invention provides low molecular weight polyesters and polyamides useful for flushing wet pigments and manufacturing color concentrates. More specifically, the compositions of the invention are effective for flushing wet pigments, producing pigment di... | 08/01/2000 |
| 6080906 | Demilitarization of chemical munitions A chemical munitions destruction system subjects the chemical agent and energetic materials to a series of treatment processes until a preselected level of destruction is achieved. The treatment processes include chemical neutralization and processing of ... | 06/27/2000 |
| 6054623 | Hydroxythiol grignard reaction synthesis A method for the preparation of hydroxythiol compounds by reacting a hydroxyl-protected halide compound having the structure: X--R--OPg with magnesium in a Grignard-suitable solvent to form a hydroxyl-protected magnesium halide compound, wherein R is selected ... | 04/25/2000 |
| 6054622 | Aromatic hydroxythiol synthesis using diazonium salts A method for the preparation of aromatic hydroxythiols including oxidizing an aromatic aminothiol to form an aminodisulfide compound; forming a bis-diazonium salt of the aminodisulfide compound; and reacting the bis-diazonium salt with water to form an ar... | 04/25/2000 |
