Quotables
"During my service in the United States Congress, I took the initiative in creating the Internet."
Al Gore ; The basis for the later misquote by US Republicans that Gore had "invented" the Internet. Gore was the leading political champion of the modern-day Internet.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8188323 | Refrigerant compositions containing perfluoropolyethers The present invention relates to compositions and processes of using perfluoropolyether to maintain or improve the oil return, lubrication, cooling capacity or energy efficiency of the refrigeration, air conditioning and heat transfer system. ... | 05/29/2012 |
| 8058485 | Process for the production of dichlorotrifluoroethane A process for the production of dichlorotrifluoroethane is described. The process comprises reacting perchloroethylene with hydrogen fluoride in the vapor phase at elevated temperature in at least one reactor in the presence of a fluorination catalyst to produce a c... | 11/15/2011 |
| 8049045 | Process for production of dichlorotrifluoroethane A process for the production of dichlorotrifluoroethane is described. The process comprises reacting perchloroethylene with hydrogen fluoride (HP) at elevated temperature in the vapor phase in at least one reactor in the presence of a fluorination catalyst. The proc... | 11/01/2011 |
| 8044250 | Manufacture of 1,1,1,2,3,3-hexafluoropropane and 1,1,1,2-tetrafluoropropane via catalytic hydrogenation A process for producing hydrofluorocarbon compounds represented by the following formula: CF3CHFCHm+1Fn wherein m is 0 or 2; n is 0 or 2; and m+n=2. The process has the step of contacting... | 10/25/2011 |
| 7982072 | Process for the obtention of purified heptafluoropropane Process for the obtention of HFC-227ea having a reduced content of organic impurities, comprising at least subjecting a crude HFC-227ea to two distillation steps at different pressures. ... | 07/19/2011 |
| 7745673 | Processes for producing hydrohalocarbon and halocarbon compounds using silicon tetrafluoride Methods and systems for producing hydrohalocarbon and/or halocarbon compounds with an inorganic fluoride (e.g., silicon tetrafluoride (SiF4)) are disclosed herein. ... | 06/29/2010 |
| 7572942 | Synthesis of carbon-labeled perfluoroalkyl compounds Various 13C and 14C carbon labeled compounds Rf—bCF(U)y(T)z Formula 1A or Rf—bCF2bCF(U)y(T)z Formula... | 08/11/2009 |
| 7361795 | Azeotrope-like compositions of 1,1,1,3,3-pentafluorobutane and hydrogen fluoride The invention relates to azeotropic and azeotrope-like mixtures of 1,1,1,3,3-pentafluorobutane (HFC-365) and hydrogen fluoride and a process for separating the azeotrope-like mixtures. The compositions of the invention are useful as an intermediate in the production... | 04/22/2008 |
| 7351870 | Synthesis of carbon-labeled perfluoroalkyl compounds Various 13C and 14C carbon labeled compounds Rf—bCF(U)y(T)zFormula 1A or Rf—bCF2bCF(U)y(T)zFormula 1B | 04/01/2008 |
| 7335804 | Direct conversion of HCFC 225ca/cb mixture Provided are methods for producing hydrofluorocarbons via the selective reduction of a halocarbon blend comprising 1,3-dichloro-1,1,2,2,3-pentafluoropropane. ... | 02/26/2008 |
| 7332554 | Polymers with new sequence distributions The invention relates to new polymerization processes including diluents including hydrofluorocarbons and their use to produce novel polymers with new sequence distributions. In particular, the invention relates to copolymers of an isoolefin, preferably isobutylene,... | 02/19/2008 |
| 7332555 | Polymers with new sequence distributions The invention relates to new polymerization processes including diluents including hydrofluorocarbons and their use to produce novel polymers with new sequence distributions. In particular, the invention relates to copolymers of an isoolefin, preferably isobutylene,... | 02/19/2008 |
| 7312367 | Method of making 1,1,3,3,3-pentafluoropropene The invention provides an economic process for the manufacture of the hydrofluorocarbon 1,1,3,3,3-pentafluoropropene (HFC-1225zc). HFC-1225zc can be made from the dehydrochlorination of 1-chloro-1,1,3,3,3-pentafluoropropane (HCFC-235fa). Alternatively, HFC-1225zc ca... | 12/25/2007 |
| 7247759 | Fluorination reactor Fluorination reactions in which an organic compound to be fluorinated is contacted with elemental fluorine and HF is produced as a byproduct are disclosed, wherein the elemental fluorine is contacted with the organic compound in the presence of a fluoride-adsorbing ... | 07/24/2007 |
| 7241928 | Process for the manufacture of halocarbons and selected compounds and azeotropes with HF A liquid phase process is disclosed for producing halogenated alkane adducts of the formula CAR1R2CBR3R4 (where A, B, R1, R2, R3, and R4 are as defined in the specification) whic... | 07/10/2007 |
| 7232872 | Polymerization processes The invention provides for a process to produce polymers utilizing a hydrofluorocarbon diluent. ... | 06/19/2007 |
| 7214750 | Polymerization processes The invention relates to new processes to produce polymers utilizing bayonette cooled slurry reactor systems and diluents including hydrofluorocarbons. ... | 05/08/2007 |
| 7205444 | 1,1,1,3,3,3-hexafluoropropane purification with photochlorination equipment A continuous, vapor phase method for purifying a crude mixture of 1,1,1,3,3,3-hexafluoropropane and one or more unsaturated fluorocarbon compounds, the process comprising: a) providing a photochlorinator vessel comprising | 04/17/2007 |
| 7179949 | Process for obtaining a purified hydrofluoroalkane Process for obtaining a hydrofluoroalkane which is purified of organic impurities, according to which the hydrofluoroalkane containing organic impurities is subjected to at least one purification treatment chosen from (a) a treatment with chlorine in th... | 02/20/2007 |
| 7176337 | Process for producing perfluorocarbons and use thereof The process for producing perfluorocarbons according to the present invention is characterized in that in the production of a perfluorocarbon by contacting an organic compound with a fluorine gas, the organic compound is contacted with the fluorine gas at a temperat... | 02/13/2007 |
| 7102039 | Production and use of octafluoropropane Octafluoropropane is produced by a process including a step (1) of reacting hexafluoropropene with hydrogen fluoride in a gas phase at a temperature of from 150 to 450° C. in the presence of a fluorination catalyst to obtain 2H-heptafluoropropane and a step (2) of ... | 09/05/2006 |
| 7091388 | Method of making 1,1,3,3,3-pentafluoropropene The invention provides an economic process for the manufacture of the hydrofluorocarbon 1,1,3,3,3-pentafluoropropene (HFC-1225zc). HFC-1225zc can be made from the dehydrochlorination of 1-chloro-1,1,3,3,3-pentafluoropropane (HCFC-235fa). Alternatively, HFC-1225zc ca... | 08/15/2006 |
| 7074975 | Catalytic synthesis of halogenated compounds with catalyst regeneration with elemental halogen Catalysts such as antimony halides, which are useful in fluorination reactions involving hydrogen fluoride, may be reduced during the reaction and require regeneration. Regenerative oxidation is usually carried out by introducing elemental halogen, preferably fluori... | 07/11/2006 |
| 7067468 | Azeotrope compositions containing a fluorocyclopentane Novel azeotrope compositions comprised of a mixture of a fluorocyclopentane with a solvent selected from the group consisting of 1-bromopropane, t-dichloroethylene, and methylene chloride. Such compositions are useful as solvents in refrigeration flushing, oxygen sy... | 06/27/2006 |
| 7055333 | High pressure CO purification and supply system A batch process and apparatus for producing a pressurized liquid carbon dioxide stream includes distilling a feed stream of carbon dioxide vapor off of a liquid carbon dioxide supply; introducing the carbon dioxide vapor feed stream into at least one purifying filte... | 06/06/2006 |
| 7045668 | Production and use of hexafluoroethane A process for production of high-purity hexafluoroethane, wherein a mixed gas containing hexafluoroethane and chlorotrifluoromethane is reacted with hydrogen fluoride in a gas phase in the presence of a fluorination catalyst at 200-450° C., for fluorination of the ... | 05/16/2006 |
| 7041264 | Process for purifying octafluoropropane A process for purifying octafluoropropane according to the present invention includes the step of contacting a crude octafluoropropane containing impurities with an impurity decomposing agent under an elevated temperature and then with an adsorbent to substantially ... | 05/09/2006 |
| 6992199 | Method for sulphonylating a hydroxylated organic compound The invention concerns a method for sulphonylating a hydroxylated organic compound. The invention concerns in particular aliphatic hydroxylated compounds and more particularly those which comprise on their aliphatic chain, an electroattractive group. The method for ... | 01/31/2006 |
| 6992229 | Method for purifying a fluorinated hydroxyl compound The present invention has an object to provide a method for purifying a fluorinated hydroxyl compound of the formula 1 safely in a high yield under industrially practical conditions. Namely, a mixture containing a fluorinated hydroxyl compound of Rf—CR | 01/31/2006 |
| 6969701 | Azeotrope-like compositions of tetrafluoropropene and trifluoroiodomethane Provided are azeotrope-like compositions comprising tetrafluoropropene and trifluoroiodomethane and uses thereof, including use in refrigerant compositions, refrigeration systems, blowing agent compositions, and aerosol propellants. ... | 11/29/2005 |
| 6940886 | Laser oscillator A laser oscillator includes: electrode tubes 15, for employing a discharge to excite a laser gas 10, and for generating a laser beam 11; a box 13, for storing parts, such as the electrode tubes 15; and an optical catalyst layer ... | 09/06/2005 |
| 6923921 | Fluorinated polyether compositions Described are fluorinated polyether compounds having a molecular weight range between 750 g/mol and 4000 g/mol where such polyether compounds are intermediates used in fluorinated compositions for treating various substrates. ... | 08/02/2005 |
| 6912872 | Method and apparatus for producing a purified liquid The present invention provides generally a method and apparatus for purifying a liquid. More particularly, purification of a bulk liquid is performed by introducing a liquid stream to a purification vessel, which comprises both a distillation chamber for forming a p... | 07/05/2005 |
| 6903230 | Process for producing a fluorine-containing compound It is to provide a process for synthesizing an intended fluorine-containing compound having a geminal difluoro structure with a high yield, by subjecting a carbonyl compound which is readily available to a two-stage reaction. A compound (1) such as ethyl 4-ox... | 06/07/2005 |
| 6900362 | Vapor phase production of 1,1,1,2,3,3,3-heptafluoropropane from hydrogen fluoride and hexafluoropropylene A process for the production of HFC-227ea from HF and HFP is provided. This process takes advantage of an azeotropic composition of HF and HFC-227ea in order to produce HFC-227ea essentially free of HF and recycle unreacted HF back to the reactor. The recycle of sai... | 05/31/2005 |
| 6858762 | Process for the manufacture of halocarbons and selected compounds and azeotropes with HF A liquid phase process is disclosed for producing halogenated alkane adducts of the formula CAR1R2CBR3R4 (where A, B, R1, R2, R3, and R4 are as defined in the specification) whic... | 02/22/2005 |
| 6844474 | 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. ... | 01/18/2005 |
| 6787664 | Process for preparing single enantiomers of 5,5,5,5′,5′,5′-hexafluoroleucine and protected analogs A process for synthesizing L and D-5,5,5,5′,5′,5′-hexafluoroleucine and protected analogs is disclosed. These compounds have utility in the preparation of fluorous peptides and proteins, which display interesting and unusual properties including strong self-as... | 09/07/2004 |
| 6755942 | Process for the manufacture of halocarbons and selected compounds and azeotropes with HF The invention relates to azeotropic compositions of halogenated propanes with HF. ... | 06/29/2004 |
| 6720465 | Preparation of highly pure fluorine compounds A process for preparing purified, saturated, partially fluorinated or perfluorinated hydrocarbon compounds from crude products which are contaminated with impurity compounds which absorb light at a wavelength of λ>200 nm by irradiating the crude product with UV rad... | 04/13/2004 |
