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| Number | Title | Issue Date |
| 5395859 | Catalysts which stabilize hydrohalocarbon blowing agent in polyisocyanurate foam formulations during polymerization The present invention relates to foam compositions which are expanded with hydrohalocarbon blowing agents in the presence of catalysts which are capable of decreasing the amount of decomposition of the hydrohalocarbon blowing agents to haloalkenes during ... | 03/07/1995 |
| 5273592 | Method of cleaning using partially fluorinated ethers having a tertiary structure The present invention provides a method of substantially dissolving contaminants or removing contaminants from the surface of a substrate. The method comprises the step of using a solvent of the Formula ##STR1## wherein R is a hydrocarbon having 1 to... | 12/28/1993 |
| 5256329 | 1,1-dichloro-1-fluoroethane dewatering systems This invention relates to compositions comprising a volatile hydrochlorofluorocarbon such as 1,1-dichloro-1-fluoroethane and demulsifer. The compositions are effective as drying agents.... | 10/26/1993 |
| 5254755 | Partially fluorinated alkanols having a tertiary structure Novel partially fluorinated alkanes having the Formula: ##STR1## wherein each R is the same or different and is selected from the group consisting of CF3, CHF2, CH2 F, and CH3 CF2, and R' is an a... | 10/19/1993 |
| 5162587 | Method for fluorinating by using N-fluoropyridinium pyridine heptafluorodiborate The present invention provides a novel compound represented as ##STR1## The present novel compound is prepared by reacting fluorine with pyridine-boron trifluoride and is useful as a fluorinating agent in the fluorination of organic compounds.... | 11/10/1992 |
| 5158617 | Method of cleaning using hydrochlorofluorocarbons having 3 to 5 carbon atoms A method of cleaning a surface of a substrate is provided. The solvent is selected from a group consisting of hydrochlorofluorocarbons having 3 to 5 carbon atoms and a maximum of two chlorine atoms. The environmental lifetime of the solvent is expected to... | 10/27/1992 |
| 5156768 | Stabilized chlorine-containing refrigeration compositions R12, which contains chlorine, and hydrogen-contributing lubricants react to form acids such as hydrogen chloride and hydrogen fluoride and simultaneously, R12 is converted to R22. Such reactions are undesirable because the acids which form destroy the met... | 10/20/1992 |
| 5154846 | Fluorinated butylene oxide based refrigerant lubricants The present invention provides a novel lubricating composition comprising polybutylene glycol having a cap of a fluorinated alkyl group on at least one end thereof. The composition has a molecular weight between about 300 and about 4,000, and a viscosity ... | 10/13/1992 |
| 5152845 | Method of cleaning using 1-chloro-3,3,3-trifluoropropane A method of cleaning a surface of a substrate is provided. The method comprises treating the surface with a solvent comprising 1-chloro-3,3,3-trifluoropropane.... | 10/06/1992 |
| 5146015 | Hydrochlorofluorocarbons having a tertiary structure and OH rate constants which do not contribute substantially to ozone depletion and global warming The present invention provides a class of hydrochlorofluorocarbons having a tertiary structure, 5 carbon atoms, 1 chlorine atom, 6 to 8 fluorine atoms, and OH rate constants from about 8 to about 15 cm3 /molecule/sec×10-14. The hydr... | 09/08/1992 |
| 5145598 | Azeotrope-like compositions of 1,1-dichloro-1-fluoroethane, dichlorotrifluorethane, nitromethane and methanol or ethanol Azeotrope-like compositions comprising 1,1-dichloro-1-fluoroethane, dichlorotrifluoroethane, nitromethane and ethanol or methanol are stable and have utility as degreasing agents and as solvents in a variety of industrial cleaning applications including c... | 09/08/1992 |
| 5137929 | Additives which stabilize hydrohalocarbon blowing agent in polyurethane and polyisocyanurate foam formulations during polymerization The present invention relates to foam compositions which are expanded with hydrohalocarbon blowing agents in the presence of additives which decrease the formation of haloalkenes during the polymerization. Thus, the present invention provides compositions... | 08/11/1992 |
| 5137651 | Azeotrope-like compositions of 1,1-dichloro-1-fluoroethane, dichlorotrifluoroethane, 1,2-dichloroethylene, and optionally methanol or ethanol Azeotrope-like compositions comprising 1,1,-dichloro-1-fluoroethane, dichlorotrifluoroethane, 1,2-dichloroethylene, and optionally ethanol or methanol are stable and have utility as degreasing agents and as solvents in a variety of industrial cleaning app... | 08/11/1992 |
| 5137640 | Process for the separation of arsenic acid from a sulfuric acid-containing solution A process for reducing arsenic levels in a solution containing sulfuric acid, water, and arsenic acid by adding copper or a copper-containing compound to the solution to form dissolved copper arsenate, adding alkali solution to precipitate the copper arse... | 08/11/1992 |
| 5130345 | Method of preparing foam using a partially fluorinated alkane having a tertiary structure as a blowing agent A method for preparing polyurethane and polyisocyanurate foams which comprises reacting and foaming a mixture of ingredients which will react to form the polyurethane or polyisocyanurate foams in the presence of a blowing agent comprising a partially fluo... | 07/14/1992 |
| 5124064 | Azeotrope-like compositions of 1,1-dichloro-1-fluoroethane; dichlorotrifluoroethane; ethanol; and alkane having 5 or 6 carbon atoms Azeotrope-like compositions comprising 1,1-dichloro-1-fluoroethane; dichlorotrifluoroethane; ethanol; and alkane having 5 or 6 carbon atoms are stable and have utility as degreasing agents and as solvents in a variety of industrial cleaning applications i... | 06/23/1992 |
| 5124063 | Azeotrope-like compositions of 1,1-dichloro-1-fluoroethane; dichlorotrifluoroethane; methanol; and alkane having 5 or 6 carbon atoms Azeotrope-like compositions comprising 1,1-dichloro-1-fluoroethane; dichlorotrifluoroethane; methanol; and alkane having 5 or 6 carbon atoms are stable and have utility as degreasing agents and as solvents in a variety of industrial cleaning applications ... | 06/23/1992 |
| 5124503 | Dichlorotrifluoroethane stabilized to minimize hydrolysis thereof The present invention provides stabilized compositions comprising dichlorotrifluoroethane and effective stabilizing amounts of alkanol having 4 or 5 carbon atoms, nitroalkane having 1 to 3 carbon atoms, and a third component of 1,2-epoxyalkane having 2 to... | 06/23/1992 |
| 5122294 | Azeotrope-like compositions of 1,1-dichloro-1-fluoroethane; dichlorotrifluoroethane; ethanol; and alkene having 5 carbon atoms Azeotrope-like compositions comprising 1,1-dichloro-1-fluoroethane; dichlorotrifluoroethane; ethanol; and alkene having 5 carbon atoms are stable and have utility as degreasing agents and as solvents in a variety of industrial cleaning applications includ... | 06/16/1992 |
| 5120461 | Azeotrope-like compositions of 1,1-dichloro-1-fluoroethane; dichlorotrifluoroethane; methanol; and alkene having 5 carbon atoms Azeotrope-like compositions comprising 1,1-dichloro-1-fluoroethane; dichlorotrifluoroethane; methanol; and alkene having 5 carbon atoms are stable and have utility as degreasing agents and as solvents in a variety of industrial cleaning applications inclu... | 06/09/1992 |
| 5118360 | Method of cleaning using partially fluorinated alkenes having a tertiary structure as solvent Novel partially fluorinated alkenes having the Formula: ##STR1## wherein each R is the same or different and is selected from the group consisting of CF3, CHF2, CH2 F, and CH3 CF2, and R' is an a... | 06/02/1992 |
| 5108632 | Lubricants useful with 1,1-dichloro-2,2,2-trifluoroethane The present invention provides a composition for use in compression refrigeration and air-conditioning comprising: (a) 1,1-dichloro-2,2,2-trifluoroethane; and (b) a sufficient amount to provide lubrication of a lubricant therefor wherein said lubricant is... | 04/28/1992 |
| 5100569 | Polyoxyalkylene glycol refrigeration lubricants having pendant, non-terminal perfluoroalkyl groups The present invention provides a composition for use in refrigeration and air-conditioning comprising: (a) at least one refrigerant selected from the group consisting of hydrofluorocarbon, hydrochlorofluorocarbon, fluorocarbon, and chlorofluorocarbon; and... | 03/31/1992 |
| 5089241 | Process for converting hexafluoroarsenic acid or any salt thereof to arsenic acid or salt thereof which can then be rendered nonhazardous The present invention provides a process for the conversion of hazardous hexafluoroarsenic acid or any salt thereof to arsenic acid or salt thereof which can be rendered nonhazardous. In particular, the hexafluoroarsenic acid or salt is converted to arsen... | 02/18/1992 |
| 5087777 | Partially fluorinated alkenes having a tertiary structure Novel partially fluorinated alkenes having the Formula: ##STR1## wherein each R is the same or different and is selected from the group consisting of CF3, CHF2, CH2 F, and CH3 CF2, and R' is an a... | 02/11/1992 |
| 5086190 | Method of fluorinating by using N-fluoropyridinium pyridine heptafluorodiborate The present invention provides a novel compound represented as ##STR1## The present novel compound is prepared by reacting fluorine with pyridine-boron trifluoride and is useful as a fluorinating agent in the fluorination of organic compounds.... | 02/04/1992 |
| 5081275 | Process for the preparation of 2-fluorobenzonitrile from saccharin The present invention relates to a process for the preparation of 2-fluorobenzonitrile. The process comprises the steps of: (a) heating saccharin and phosphorus pentachloride under conditions and for a time sufficient to provide 2-cyanobenzenesulfonyl chloride... | 01/14/1992 |
| 5073206 | Method of cleaning using azeotrope-like compositions of 1,1-dichloro-1-fluoroethane, methanol and nitromethane A method of cleaning a solid surface is disclosed. The method involves spraying the solid surface with azeotrope-like compositions by using a propellant. The azeotrope-like compositions comprise from about 93.0 to about 98.0 weight percent 1,1-dichloro-1-... | 12/17/1991 |
| 5059728 | Partially fluorinated alkanes having a tertiary structure Novel partially fluorinated alkanes having the Formula: ##STR1## wherein each R is the same or different and is selected from the group consisting of CF3, CHF2, CH2 F, and CH3 CF2, and R' is an a... | 10/22/1991 |
| 5052428 | Valve repair device The present invention provides a repair device for a cracked valve. The present invention is a valve with at least one crack on the packing nut or threaded portion thereof wherein the valve has a repair device for the crack installed thereon. The repair d... | 10/01/1991 |
| 5049301 | Azeotrope-like compositions of 1,1-dichloro-1-fluoroethane; dichlorotrifluoroethane; and methyl formate Azeotrope-like compositions comprising 1,1-dichloro-1-fluoroethane; dichlorotrifluoroethane; and methyl formate are stable and have utility as degreasing agents and as solvents in a variety of industrial cleaning applications including cold cleaning and d... | 09/17/1991 |
| 5026502 | Azeotrope-like compositions of 1,1-dichoro-1-fluoroethane; dichlorotrifluoroethane; and alkane or cycloalkane having 5 carbon atoms Azeotrope-like compositions comprising 1,1-dichloro-1-fluoroethane; dichlorotrifluoroethane; and alkane or cycloalkane having 5 carbon atoms are stable and have utility as degreasing agents and as solvents in a variety of industrial cleaning applications ... | 06/25/1991 |
| 5026501 | Azeotrope-like compositions of 1,1-dichloro-1-fluoroethane; dichlorotrifluoroethane; and dichloromethane Azeotrope-like compositions comprising 1,1-dichloro-1-fluoroethane; dichlorotrifluoroethane; and dichloromethane are stable and have utility as degreasing agents and as solvents in a variety of industrial cleaning applications including cold cleaning and ... | 06/25/1991 |
| 5024897 | Blends of polyamide, polyolefin, and ethylene vinyl alcohol copolymer Compositions comprising polyamides, polyolefins and ethylene vinyl alcohol copolymers useful as compatibilizers, related processes and articles made therefrom. A composition comprising from 50 to 99.4 percent by weight of a polyolefin, from 0.5 to 50 perc... | 06/18/1991 |
| 4988455 | Azeotrope-like compositions of 1,1-dichloro-1,2,2-trifluoropropane and alkanol having 1 to 4 carbon atoms Azeotrope-like compositions consisting essentially of 1,1-dichloro-1,2,2-trifluoropropane and alkanol having 1 to 4 carbon atoms are stable and have utility as degreasing agents and as solvents in a variety of industrial cleaning applications including co... | 01/29/1991 |
| 4975212 | Fluorinated lubricating compositions The present invention provides a novel lubricating composition comprising a polyoxyalkylene glycol having a cap of a fluorinated alkyl group on at least one end thereof. The composition has a molecular weight between 300 and 3,000, a viscosity of about 5 ... | 12/04/1990 |
| 4968803 | Process for the preparation of 2-hydroxypyridine or quinoline compounds The present invention relates to a process for the preparation of hydroxypyridine based compounds. The process comprises the step of: in water, reacting a pyridine based compound with the proviso that the second position on the nitrogen ring is unsubstitu... | 11/06/1990 |
| 4965011 | Azeotrope-like compositions of 1,1-dichloro-1-fluoroethane, dichlorotrifluoroethane, and nitromethane Azeotrope-like compositions comprising 1,1-dichloro-1-fluoroethane, dichlorotrifluoroethane, and nitromethane are stable and have utility as solvents in a variety of industrial cleaning applications including cold cleaning and defluxing of printed circuit... | 10/23/1990 |
| 4961870 | Azeotrope-like compositions of 1,1,2-trichloro-1,2,2-trifluoroethane,1,2-dichloroethylene, and alkanol having 3 to 7 carbon atoms Azeotrope-like compositions comprising 1,1,2-trichloro-1,2,2-trifluoroethane; 1,2-dichloroethylene; and alkanol having 3 to 7 carbon atoms have utility as degreasing agents and as solvents in a variety of industrial cleaning applications including cold ... | 10/09/1990 |
| 4950816 | Purification of 1,1-dichloro-1-fluoroethane The present invention provides a process for the purification of 1,1-dichloro-1-fluoroethane comprising the steps of: (a) reacting anhydrous hydrogen fluoride with 1,1,1-trichloroethane or vinylidene chloride containing dichloroacetylene to form 1,1-dichl... | 08/21/1990 |
