Patents
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Patents for C07C 21 - Acyclic unsaturated compounds containing halogen atoms (4,465)
08/1990
08/02/1990WO1990008814A1 Hydrochlorofluorocarbon azeotropic or azeotropic-like mixture
07/1990
07/26/1990WO1990008117A1 Process for the chlorination of methane
07/26/1990WO1990008116A1 Process for the chlorination of ethane
07/18/1990CN1043963A Azeotropic compositions of 1,1,2-trichlorotrifluoroethane and trans-1,2-dichloroethylene with ethanol, n-propanol isopropanol and acetone or with ethanol or acetone and nitromethane
07/04/1990EP0376439A1 Azeotropic compositions of 1,1,2-trichlorotrifluoroethane and trans-1, 2-dichloroethylene with ethanol, N-propanol isopronol and acetone or with ethanol or acetone and nitromethane
07/03/1990US4938849 Electrolytic reduction
06/1990
06/12/1990US4932984 Contacting vent stream with liquid spray of chlorinated solvent to condense stream
06/06/1990EP0371747A1 Production of tetrafluoroethylene
05/1990
05/23/1990CN1008086B Continuous process for cracking 1,2-dichloroethane
04/1990
04/17/1990US4918252 Chemical intermediate for sex pheromone
04/10/1990US4916136 Lipoxygenase and cyclooxygenase inhibitors
04/04/1990EP0361827A1 Pyrazole compounds, method for production thereof, use thereof and intermediates for production thereof
03/1990
03/27/1990US4912271 Process for the manufacture of vinyl chloride by reaction of acetylene with hydrogen chloride
03/20/1990US4910008 Gas-gas phase contactor
03/06/1990US4906796 Process for purifying 1,1,1,2-tetrafluoroethane
02/1990
02/28/1990EP0355907A1 A 1,1,2-trichloro-1,2,2-trifluoroethane hydrogenation process
02/20/1990US4902839 Process for preparing fluorinated C4 to C6 hydrocarbons and novel cyclic fluorinated hydrocarbons and their use as propellant gas and working fluid for heat pump systems
02/20/1990US4902835 Fluorinated butene derivatives and methods for their preparation
02/13/1990US4900874 Method for producing fluorine-containing olefin
02/06/1990US4899000 Oxychlorination of perchloroethylene, reacting hexachloroethane with hydrocarbon; catalysis, by-product inhibition
02/06/1990US4898645 Process for the production of pure tetrafluoroethylene
01/1990
01/03/1990EP0348981A2 Process for preparing fluorinated conjugated olefinic products
12/1989
12/12/1989US4886904 Polyprenyl composition or compounds and process for the production thereof
12/12/1989US4886891 Process for preparing 1,1-disubstituted ethylene derivative by reaction of lead with a carbinol derivative
12/06/1989EP0344223A1 New perfluoroalkanes and fluorination products thereof
11/1989
11/29/1989EP0343707A1 Process for the hydrogenation of chlorofluoroalkenes
11/29/1989CN1037501A Process for manufacture of vinyl chloride by conversion of acetylene with hydrogen chloride
11/29/1989CN1037500A Technology for preparing chlorine solvent
11/14/1989CA1262905A1 Tris(disubstituted amino)sulfonium perfluorocarbanion salts and process for their preparation
11/08/1989EP0340416A1 Process for preparing vinyl chloride by reacting acetylene with hydrogen chloride
10/1989
10/31/1989US4877545 For cleaning printed circuit boards
10/24/1989US4876407 Continuous dehydrochlorination of 2,3,4-trichlorobutene/1-/ in water miscible solvent with alkali metal hydroxide
10/24/1989US4876405 Process for preparing fluoroethylenes and chlorofluoro-ethylenes from chlorofluoroethanes
10/24/1989US4876081 Coupling to proteins, polypeptids; diagnostic and therapy compounds
10/18/1989EP0337862A1 1-halo-(Z,E) 7,10-dodecadiene and a method for the production thereof
10/18/1989EP0337127A1 Process for the preparation of hexafluor propene
09/1989
09/27/1989EP0333926A1 Process for preparing vinylidene fluoride by the direct fluorination of vinylidene chloride
09/27/1989CN1035818A Process for preparing hexafluoropropene
09/26/1989US4870220 Chlorination of isobutene in distributed nozzle-mixing reactor
08/1989
08/16/1989EP0328148A1 Method for producing fluorine-containing olefin
08/02/1989CN1034359A Improved dichlorobutene isomerization process
07/1989
07/25/1989US4851597 Process for the thermal cleavage of 1,2-dichloroethane
07/18/1989US4849561 Liquid phase process for dehydrochlorination of haloalkanes in the presence of an initiator based on an organic chlorinated product
07/18/1989US4849554 Isothermal pyrolsis of dichlorodifluoromethane, heating by electromagnetic induction
06/1989
06/27/1989US4843182 Process for the production of monomer vinyl chloride by cracking of dichloroethane and system suitable to carry out the process
06/14/1989EP0320228A2 Improved dichlorobutene isomerization process
06/13/1989US4839390 For soil treatment; agriculture
06/13/1989US4839153 Process for purification of HCl from pyrolysis of EDC
06/07/1989EP0319153A1 Preparation of 3,3,3-trifluoropropene-1
06/06/1989US4837369 Process for the preparation of 3-fluoro-2-(fluoromethyl)-propene
05/1989
05/17/1989EP0315783A1 Process for the preparation of fluorinated C-4 to C-6 hydrocarbons and fluorinated cyclic hydrocarbons, and the use of fluorinated C-4 to C-6 hydrocarbons as propellants and working fluids in heat pump systems
05/02/1989US4827059 Hydroxylamine salt as by-product inhibitor
05/02/1989US4827056 Hypochlorous acid
05/02/1989US4827055 Process for preparing vinylidene fluoride by the direct fluorination of vinylidene chloride
04/1989
04/26/1989EP0313254A2 Production of vinylidene fluoride
04/18/1989US4822932 Rapid direct quenching of gaseous pyrolysis products
04/18/1989CA1252800A1 Chlorinated derivatives of hexadecen, their preparation process and use in the synthesis of vitamin e
04/05/1989CN1032189A Azeotrope or azeotrope-like composition of trichlorotrifluoroethane, methanol and 1,2-dichloroethylene
03/1989
03/29/1989EP0309082A1 An azeotrope or azeotrope-like composition of trichlorotrifluoroethane, methanol and 1,2-dichlorethylene
03/28/1989US4816602 Process for the production of cycloalkanecarboxylic acids
03/22/1989EP0307673A1 Process for the recovery of pure tetra-fluor ethylene
03/21/1989US4814522 Catalytic fluoroolefin transhalogenations
03/21/1989CA1251470A1 Pyrolytic dehydrochlorination of haloalkanes; chlorinated product initiator used in such a process
03/21/1989CA1251469A1 Process for the synthesis of hexafluorobutadiene and of higher perfluorinated dienes
03/09/1989WO1989001927A1 New perfluoroalkanes and fluorination products thereof
02/1989
02/01/1989EP0301346A2 Production of polyfluorbutenes
02/01/1989CN1030748A Vinyl substituted radiohalogen conjugates for protein labeling
01/1989
01/25/1989EP0189448B1 Agent for the fluoridation of organic compounds particularly acetylenic compounds, preparation process thereof and utilization thereof in nucleophilic substitution or addition reactions
01/18/1989CN1030407A Process for manufacturing methallyl chloride
01/17/1989US4798914 Process for the production of vinyl chloride through thermal cracking of 1,2-dichloroethane
01/17/1989US4798818 Aluminum fluoride, transition metal compound, hydrogen fluoride
01/04/1989EP0297238A1 Process for preparing methallyl chloride
01/04/1989CN1030071A Process for perfluropropylene
12/1988
12/20/1988CA1247142A1 Continuous cracking process for 1,2-dichloroethane
12/20/1988CA1247131A1 Process for preparing compounds containing a difluoromethylene or a trifluoromethyl group
12/14/1988EP0238569B1 Process for the manufacture of cycloalkane carboxylic acids
12/13/1988US4791222 Hydrogenating alpha-penene; pyrolyzing; hydrochlorinating; reacting with water or acetic acid using specific catalyst
12/13/1988US4791123 Insecticidal triffluormethyl alkane derivatives
12/07/1988EP0294108A2 Electrochemical process
11/1988
11/29/1988US4788357 Using flue gas waste heat to generate steam
11/29/1988CA1245674A1 Perchlorofluorated hydrocarbons, and their preparation
11/08/1988CA1244481A1 Catalytic dehydrohalogenation process
11/02/1988EP0289187A2 Vinyl substituted radiohalogen conjugates for protein labeling
11/01/1988US4781807 Hydrogen bromide catalyst
11/01/1988CA1244055A1 Process for preparing primary and-or tertiary allyl halides
10/1988
10/19/1988EP0287219A1 Production of tetrafluoroethylene and hexafluoropropylene
10/12/1988EP0171316B1 Process and apparatus for contacting at least two gaseous components reacting at high temperatures
09/1988
09/21/1988EP0282914A2 Process for preparing chlorinated olefins
08/1988
08/31/1988EP0279954A2 Amides of eicosatetraynoic acid, their pharmaceutical and cosmetic use, their preparation and process for the preparation of eicosatetraynoic acid
08/30/1988US4767561 Azeotrope or azeotrope-like composition of trichlorotrifluoroethane, methanol and 1,2-dichloroethylene
08/23/1988US4766258 Process for producing hydrocarbon fluoride
08/03/1988EP0276775A2 Method for the production of vinyl chloride by pyrolysis of 1,2-dichloroethane
07/1988
07/27/1988EP0275528A1 Process for preparing 1,1-disubstituted ethylene derivative
07/26/1988US4760208 Reacting telomer in solvent with sufficient iron to form coupled olefin and mixtures
06/1988
06/28/1988US4754087 Reacting hydrogen halide with terminal conjugated diene using cuprous halide-salt catalyst
06/15/1988EP0270956A1 Process for the synthesis of perfluoroalkandienes
06/08/1988EP0270007A2 Process for producing vinylchloride monomer by pyrolysis of 1,2-dichloroethane
06/08/1988EP0270006A1 Efficient cis-to-trans isomerization of 1, 4-dihalobutene-2
05/1988
05/24/1988US4746759 Process for thermal cracking of 1,2-dichloroethane to form vinyl chloride
05/17/1988US4745235 Decomposition by decarboxylation in presence of alumina
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