Did You Know...
...that in the early 1940s GE engineer James Wright was charged with a task of utmost importance to the war effort: develop a cheap substitute for rubber that could be used to produce tires, gas masks and a whole host of military gear. Wright tackled the task diligently -- and wound up inventing Silly Putty.
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| Number | Title | Issue Date |
| 6132679 | Method and apparatus for aerating chemically-sterilized articles A method for aerating an ethylene oxide-sterilized article, said method comprising exposing said article to at least one co-adsorbate under conditions such that said co-adsorbate remains vaporized, said co-adsorbate having a partial pressure under said co... | 10/17/2000 |
| 6034202 | Polymerization catalysts for polyesters The invention provides non-antimony containing polymerization catalysts for the condensation of polyesters. The catalyst is in the form of a clear chlorine and/or bromine containing solution of a metal glycoxide and a metal glycolate having a pH in the ra... | 03/07/2000 |
| 5969198 | Process for the preparation of 1,1,1,3,3-pentafluoropropane A process for preparing 1,1,1,3,3-pentafluoropropane from a hydrochlorocarbon of the formula C3 Hy Clx, wherein x is an integer from 3 to 5, y is an integer from 1 to 3, x+y=4, 6, or 8, and x-y=2 is provided.... | 10/19/1999 |
| 5856594 | Process for the preparation of 1,1,2,2,3-pentafluoropropane A process for the preparation of 1,1,2,2,3-pentafluoropropane is provided. In the process of the present invention, 1,3-dichloro-1,1,2,2,3-pentafluoropropane is catalytically reduced, using a platinum group metal supported on alumina, to 1,1,2,2,3-pe... | 01/05/1999 |
| 5811604 | Continuous production of 1,1,1,3,3,3-hexafluoropropane and 1-chloro-1,1,3,3,3-pentafluoropropane A process for the continuous production of 1,1,1,3,3,3-hexafluoropropane (HFC-236fa) and/or 1-chloro-1,1,3,3,3-pentafluoropropane (HCFC-235fa) in the liquid phase wherein the HFC-235fa and/or HFC-236fa serve as solvents for the reaction. When the reaction... | 09/22/1998 |
| 5780691 | Process for producing 1,1,1,2,3,3,3,-heptafluoroprane The invention provides a process for production of 1,1,1,2,3,3,3-heptafluoropropane, HFC-227ea. In particular, the invention provides an inexpensive process for producing HFC-227ea in good yield by reacting 1,1,1,3,3,3-hexafluoropropane, HFC-236fa, with e... | 07/14/1998 |
| 5778685 | Clathrate forming medium and its use in thermal energy storage systems and processes for thermal energy storage and transfer An improved thermal energy storage system and a process for thermal energy storage and transfer are disclosed. The cooling medium, a clathrate forming mixture, comprises water, and a hydrofluorocarbon having at least three carbon atoms and a molecular dia... | 07/14/1998 |
| 5763706 | Process for the manufacture of 1,1,1,3,3-pentafluoropropane and 1,1,1,3,3,3-hexafluoropropane An integrated manufacturing process for producing HFC-245fa, HFC-236fa or a mixture thereof by reaction of HCC-240fa, HCC-230 or a mixture thereof with HF. HCC-240fa, HCC-230 or a mixture thereof is reacted with hydrogen fluoride in a liquid phase in the ... | 06/09/1998 |
| 5759438 | Azeotrope-like compositions of 1,1,1,3,3-pentafluoropropane and 1,1-dichloro-1-fluoroethane Azeotrope-like compositions of 1,1,1,3,3-pentafluoropropane and 1,1-dichloro-1-fluoroethane are provided. The compositions of the invention are useful in the preparation of polyurethane and polyisocyanurate foams and as aerosol propellants.... | 06/02/1998 |
| 5744638 | Process for the preparation of haloanthranilic acids The present invention relates to a process for the preparation of compounds of the general formula I ##STR1## in which X and Y, independently of each other, represent hydrogen, fluorine, chlorine or bromine, but cannot simultaneously represent h... | 04/28/1998 |
| 5736012 | Process for the preparation of a fluorinated acid A process for the preparation of a fluorinated acid such as trifluoroacetic acid, including admixing an hydrofluorocarbon, such as 1,1,1-trifluoroethane, with chlorine, an oxidizing agent and an additive to prevent or minimize decomposition; and irradiati... | 04/07/1998 |
| 5728904 | Process for the preparation of 1,1,1,3,3-pentafluoropropane This invention is related to the preparation of hydrofluorocarbons (HFCs). Specifically, it relates to the manufacture of 1,1,1,3,3-pentafluoropropane, CF3 CH2 CF2 H (HFC-245fa) by the steps comprising (1) the formation of... | 03/17/1998 |
| 5705779 | Preparation of 1,1,1,3,3-pentachloropropane by photochlorination of 1,1,1,3-tetrachloropropane A process for the preparation of 1,1,1,3,3-pentachloropropane (HCC-240fa). HCC-240fa is prepared by the photochlorination of 1,1,1,3-tetrachloropropane (HCC-250). HCC-240fa is an important intermediate in the preparation of 1,1,1,3,3-pentafluoropropane ... | 01/06/1998 |
| 5683974 | Azeotrope-like compositions of 1,1,1,3,3-pentafluoropropane and C1 -C3 alcohols for cleaning Novel azeotrope-like compositions of 1,1,1,3,3-pentafluoropropane and C1 -C3 alcohols or mixtures thereof are useful in solvent cleaning.... | 11/04/1997 |
| 5654494 | Process for the manufacture of 1,1,1,2-tetrafluoroethane This invention relates to a process for producing 1,1,1,2-tetrafluoroethane (HFC-134a). The process reacts, 1,1,1-trifluoro-2-chloroethane (HCFC-133a) and hydrogen fluoride in a first reactor. The product resulting from the first reaction step is brought ... | 08/05/1997 |
| 5633413 | Continuous process for the production of vinylidene chloride telomers A process for the continuous production of telomers CCl3 (CH2 CCl2)n Cl where n=1-3 (Formula I) by the continuous reaction of CCl4 and vinylidene chloride in the presence of a solvent and a catalyst. ... | 05/27/1997 |
| 5631372 | Process for the manufacture of 1-substituted-4-fluoro-1,4-diazoniabicyclo[2.] octane salts A process for producing 1-substituted-4-fluoro-1,4-diazoniabicyclo[2.2.2]octane salts having the formula ##STR1## wherein the Z substituent is OH, OR, OC(O)R, SO3, SO2 R, NO2, NO, or PO(OR)2, wherein R... | 05/20/1997 |
| 5629458 | Process for the preparation of 2 2 2 trifluoroethanol A vapor phase process for producing a fluorinated alcohol, such as 2,2,2-trifluoroethanol via oxidation of an hydrofluorocarbon, such as 1,1,1-trifluoroethane, with an oxidizing agent and elemental fluorine.... | 05/13/1997 |
| 5629460 | Process for the preparation of 1,1,1,3,3,3-hexafluoro-2-propanone A vapor phase process for the preparation of fluorinated ketones, such as 1,1,1,3,3,3-hexafluoro-2-propanone via oxidation of hydrofluorocarbons, such as 1,1,1,3,3,3-hexafluoropropane, with an oxidizing agent and elemental fluorine at temperatures ranging... | 05/13/1997 |
| 5606084 | Process of fluorinating organic compounds with 1-substituted-4-fluoro-1,4-diazoniabicyclo octane salts The present invention relates to the preparation and uses of 1-substituted-4-fluoro-1,4-diazoniabicyclo[2.2.2]octane salts, specifically 1-hydroxyl-4-fluoro-1,4-diazoniabicyclo[2.2.2]octane salts as reagents for the introduction of fluorine in organic com... | 02/25/1997 |
| 5561171 | 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 ... | 10/01/1996 |
| 5552533 | Preparation of (8S)-8-fluoroerythromycins with N-F fluorinating agents (8S)-8-fluoroerythromycins are prepared by reacting 8,9-anhydroerythromycin 6,9-hemiacetals or an N-oxide thereof with a carboxylic acid and an N-F fluorinating agent. The anhydro starting material may be prepared in situ from erythromycins or an N-oxide ... | 09/03/1996 |
| 5545778 | Single stage process for producing hydrofluorocarbons from perchloroethylene A process for the preparation of one or more of CHClFCF3 (HCFC-124), CHF2 CClF2 (HCFC-124a) and CHF2 CF3 (HFC-125) by reaction of perchloroethylene with hydrogen fluoride in a single stage reaction ve... | 08/13/1996 |
| 5459267 | 1-substituted-4-fluoro-1,4-diazoniabicyclo[2.2.2]octane salts and their application as fluorinating agents SUBSTITUTED-4-FLUORO-1,4-DIAZONIABICYCLO[2.2.2]OCTANE SALTS AND THEIR APPLICATION AS FLUORINATING AGENTS The present invention relates to the preparation and uses of 1-substituted-4-fluoro-1,4-diazoniabicyclo[2.2.2]octane salts, specifically 1-hydrox... | 10/17/1995 |
| 5449503 | Process for separating arsenic acid from an aqueous mixture comprising sulfuric and arsenic acids The present invention provides a process for recovering arsenic acid from a starting mixture comprising sulfuric and arsenic acids and water. In step (a), the starting mixture is treated with a sulfur (IV) compound which will reduce the arsenic acid to ar... | 09/12/1995 |
| 5405930 | Di-, tri- and tetrafunctional methyl isobutyl and methyl amyl ketoxime-based silanes The invention relates to the following novel silanes: methyl vinyl bis(methyl isobutyl ketoximino) silane; methyl vinyl bis-(methyl amyl ketoximino) silane; methyl tris-(methyl isobutyl ketoximino) silane; vinyl tris-(methyl isobutyl ketoximino) silane; m... | 04/11/1995 |
| 5405984 | Silicone rubber compositions containing novel/ketoxime-based silanes The invention relates to the following novel silanes: methyl vinyl bis-(methyl isobutyl ketoximino) silane; methyl vinyl bis-(methyl amyl ketoximino) silane; methyl tris-(methyl isobutyl ketoximino) silane; vinyl tris-(methyl isobutyl ketoximino) silane; ... | 04/11/1995 |
| 5160567 | System and method for manufacturing copper clad glass epoxy laminates A system of conveyors and handlers for manufacturing copper clad laminates is disclosed. The system has a layup station including at least two clean rooms in which B-stage and copper foil sheets are respectively placed. A sandwich comprising a copper foil... | 11/03/1992 |
| 5075982 | Open top defluxer with improved solvent vapor recovery A vapor degreasing open topped defluxer is disclosed in which cleaning solvent vapors are generated by boiling a liquid solvent in an open topped tank with the parts to be cleaned inserted therein through the open top. The open topped tank is formed from ... | 12/31/1991 |
| 5007179 | Cold air lock vapor seal for process solvent vapor recovery and control A solvent vapor control apparatus used in conjunction with a degreaser or defluxer into which articles to be degreaser or defluxed are conveyed into intimate contact with liquid solvent and/or a vapor phase thereof is disclosed. The vapor control apparatu... | 04/16/1991 |
| 4963168 | Apparatus for recovering solvent from solvent laden process air streams Apparatus for removing solvent vapor from a process air stream including at least first and second tanks each containing a carbon bed and alternately connected to a solvent laden air inlet duct and an outlet duct for respectively directing the solvent lad... | 10/16/1990 |
| 4904407 | Azeotrope-like compositions of 1,1,2-trichloro-1,2,2-trifluoroethane, methanol, nitromethane, 1,2-dichloroethylene and 1-chloropropane Azeotrope-like compositions comprising 1,1,2-trichloro-1,2,2-trifluoroethane, methanol, nitromethane, 1,2-dichloroethylene and 1-chloropropane are stable and have utility as degreasing agents and as solvents in a variety of industrial cleaning applic... | 02/27/1990 |
| 4900365 | Azeotrope-like compositions of trichlorofluoromethane, dichlorotrifluoroethane and isopentane Azeotrope-like compositions comprising trichlorofluoromethane, a dichlorotrifluoroethane selected from the group consisting of 1,1-dichloro-2,2,2-trifluoroethane and 1,2-dichloro-1,1,2-trifluoroethane and isopentane are novel compositions particularly use... | 02/13/1990 |
| 4900470 | Azeotrope-like compositions of 1,1,2-trichloro-1,2,2-trifluoroethane, methanol, nitromethane and 1-chloropropane Azeotrope-like compositions comprising 1,1,2-trichloro-1,2,2-trifluoroethane, methanol, nitromethane and 1-chloropropane are stable and have utility as degreasing agents and as solvents in a variety of industrial cleaning applications including the d... | 02/13/1990 |
| 4895778 | Method of purifying electrolytes of alkali metal batteries A method is described for purifying elecrolytes used in alkali battery systems and containing transition metal solutes as impurities. An electrolyte is mixed with or fed through a column containing poly(acrylamideoxime) resin. The resin chelates the trans... | 01/23/1990 |
| 4894176 | Azeotrope-like compositions of 1,1-dichloro-1-fluoroethane, dichlorotrifluoroethane and methanol Azeotrope-like compositions comprising 1,1-dichloro-1-fluoroethane, dichlorotrifluoroethane and methanol are stable and have utility as degreasing agents and as solvents in a variety of industrial cleaning applications including cold cleaning and defluxin... | 01/16/1990 |
| 4873015 | Azeotrope-like compositions of 1,1,2-trichloro-1,2,2-trifluoroethane, methanol, nitromethane and dimethoxymethane Azeotrope-like compositions comprising 1,1,2-trichloro-1,2,2-trifluoroethane, methanol, nitromethane and dimethoxymethane are stable and have utility as degreasing agents and as solvents in a variety of industrial cleaning applications including the ... | 10/10/1989 |
| 4870138 | Semi-interpenetrating polymer networks Novel compositions of matter comprising semi-interpenetrating polymer networks resulting from the reaction between a poly(vinyl benzyl ether) of a polyphenol and engineering condensation thermoplastic may be used as components in a laminate when coated on... | 09/26/1989 |
| 4868334 | Process for the production of anhydrous oxime from an aqueous solution The present invention provides a simple process for the production of anhydrous oxime by the separation of the oxime from an aqueous solution. The process is advantageous because the potential explosive hazards of current processes are eliminated and the ... | 09/19/1989 |
| 4863630 | Azeotrope-like compositions of 1,1-dichloro-1-fluoroethane, dichlorotrifluoroethane and ethanol Azeotrope-like compositions comprising 1,1-dichoro-1-fluoroethane, dichlorotrifluoroethane and ethanol are stable and have utility as degreasing agents and as solvents in a variety of industrial cleaning applications including cold cleaning and defluxing ... | 09/05/1989 |
