Patents
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Patents for C07C 23 - Compounds containing at least one halogen atom bound to a ring other than a six-membered aromatic ring (1,237)
10/1991
10/09/1991EP0450329A2 Localized soldering station
10/09/1991EP0449831A1 Compounds and methods based on 1.1.1]propellane
09/1991
09/25/1991CN1054792A Azeotropic compositions of perfluoro-1,2-dimethylcyclobutane with methanol and 1,1-dichloro-1-fluoroethane or dichlorotrifluoroethane
09/25/1991CN1054791A Stabilized constant-boiling, azeotrope or azeotrope-like compositions of dichlorotrifluoroethane; 1,1-dichloro-1-fluoroethane, with methanol and/or ethanol
09/25/1991CN1054790A Azeotropic compositions of perfluoro-1, 2-dimethylcyclobutane with 1,1-dichloro-1-fluoroethane or dichlorotrifluoroethane
09/19/1991WO1991013967A1 Azeotropic compositions of perfluoro-1,2-dimethylcyclobutane with methanol and 1,1-dichloro-1-fluoroethane or dichlorotrifluoroethane
09/19/1991WO1991013846A1 1,1,2,2,3,3-hexafluorocyclopentane and use thereof in compositions and processes for cleaning
09/18/1991CN1054611A 1,1,2,2,3,3,-hexafluorocyclopentane and use thereof in compositions and processes for cleaning
09/13/1991WO1991013946A1 Azeotropic compositions of perfluoro-1,2-dimethylcyclobutane with 1,1-dichloro-1-fluoroethane or dichlorotrifluoroethane
09/13/1991CA2077913A1 Azeotropic compositions of perefluoro-1,2- dimethylcyclobutane with 1,1-dichloro-1- fluoroethane or dichlorotrifluoroethane
09/11/1991EP0445682A1 Production of hexabromocyclododecane
08/1991
08/21/1991EP0442585A1 Process for racemization of an optically active amino acid amide
08/21/1991EP0442087A1 Process for preparing saturated fluorinated hydrocarbons without chlorine
08/21/1991EP0441876A1 Non-bioaccumulable pesticides.
08/21/1991EP0441807A1 Liquid phase fluorination.
08/14/1991EP0441190A1 Method of elevating the melting point of a hexabromocyclododecane product
08/08/1991WO1991005750A3 Process for producing fluorinated organic compounds
07/1991
07/31/1991EP0438715A2 1,1-Bicyclo-substituted fluorinated cyclopentanes and method for their production
06/1991
06/25/1991US5026497 Azeotropic compositions of perfluoro-1,2-dimethylcyclobutane with methanol and 1,1-dichloro-1-fluoroethane or dichlorotrifluoroethane
06/12/1991EP0179788B1 Pesticides
05/1991
05/28/1991CA1284495C Chlorination of carbohydrates and other alcohols
05/15/1991CN1051349A Fluorocarbon purification process
05/08/1991EP0425888A1 Process for the preparation of polychloro-fluor-cyclopentenes
05/08/1991EP0425887A2 Process for halogen-fluor exchange in organic compounds and catalysts therefor
05/02/1991WO1991003442A3 Process for separating mixtures of partially fluorinated or perfluorinated hydrocarbon compounds
04/1991
04/21/1991WO1991005750A2 Process for producing fluorinated organic compounds
04/21/1991CA2067387A1 Process for producing fluorinated organic compounds
04/18/1991WO1991004955A1 Fluorocarbon purification process
04/05/1991CA2026825A1 Fluorocarbon purification process
04/02/1991US5004848 Controlling temperature, loading factor and weight ratio of solvent mixture; separating isomers by particle sizes
03/1991
03/27/1991EP0418362A1 Trifluoromethylcyclohexane derivatives.
03/21/1991WO1991003442A2 Process for separating mixtures of partially fluorinated or perfluorinated hydrocarbon compounds
03/07/1991DE4027143A1 Stabilising blood substitute emulsions contg. per:fluoro-hydrocarbon
03/06/1991EP0414686A1 Derivatives of trifluoromethyl-1-tetralines, preparation and application thereof for the synthesis of compounds having therapeutic properties.
03/05/1991US4997805 Heat sensitive recording material containing chromogenic dicyanomethylenepyrazolinones
02/1991
02/19/1991US4994202 Solvent cleaning; refrigerants, aersol propellants, blowing agents for polymers
01/1991
01/22/1991US4986931 Cyclohexane derivatives
01/15/1991US4985583 Liquid Crystals
01/15/1991US4985581 Catalyst and process for producing aromatic nitriles
01/15/1991CA1279069C Perfluoro-1,1-di(orthoxylyl) alkyl compounds
12/1990
12/18/1990CA1277996C Fluorinated polycyclic compounds
10/1990
10/31/1990EP0395199A1 Substituted tetrahydroindane derivatives and their use as intermediates
10/18/1990WO1990012073A1 Trifluoromethylcyclohexane derivatives
09/1990
09/11/1990US4956390 Gas transport employing perfluorobutyldecalin
09/04/1990US4954666 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
08/1990
08/21/1990US4950754 Chromogenic dicyanomethylenepyrazolinones
08/01/1990EP0380392A2 Derivatives of benzocycloalkenyl dihydroxyalkanoic acids, methods of making them and phrmaceuticals containing them
08/01/1990EP0257049B1 Chiral compounds
07/1990
07/25/1990EP0379070A1 Process for preparing chlorotrifluoroethylene telomers and telomers obtained thereby
07/12/1990CA2007484A1 Process for preparing chlorotrifluoroethylene telomers and new telomers obtained
06/1990
06/12/1990US4933319 Substituted tetrahydroindane derivatives and organoleptic uses of substituted tetrahydroindanes
05/1990
05/30/1990EP0370081A1 Chiral or achiral cyclic compounds
05/17/1990WO1990004921A1 Non-bioaccumulable pesticides
05/15/1990US4925992 Vapor phase soldering fluid
04/1990
04/17/1990US4918253 Process for the preparation of 1,2,5,6,9,10-hexabromocyclododecane
04/10/1990US4916234 Chromogenic dicyanomethylenepyrazolinones
04/05/1990WO1990003353A1 Liquid phase fluorination
02/1990
02/20/1990US4902840 Substituted tetrahydroindane derivatives and organoleptic uses of substituted tetrahydroindanes
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
02/20/1990US4901910 For heating and melting
02/13/1990US4900824 Perfluoro hexamethylenetetramine useful in synthetic blood
01/1990
01/23/1990US4895990 Fluorinated polycyclic compounds
12/1989
12/14/1989WO1989012085A1 Compounds and methods based on [1.1.1]propellane
12/13/1989EP0346276A1 Substituted benzocyclobutenes, process for their preparation and their use
12/05/1989US4885414 Perfluorinated propyl derivative compounds
11/1989
11/21/1989US4881682 Vapor phase soldering with perfluorinated butyl derivative compounds
11/14/1989CA1262905A1 Tris(disubstituted amino)sulfonium perfluorocarbanion salts and process for their preparation
11/14/1989CA1262893A1 Process for preparing substituted polycyclo- alkylidene polycyclo-alkanes and the corresponding epidioxy compounds; as well as said substituted polycyclo-alkylidene polycyclo-alkanes and the corresponding epidioxy compounds
11/02/1989EP0339553A2 Catalyst and process for producing aromatic nitriles
10/1989
10/26/1989DE3812191A1 Chirale oder achirale ringverbindungen Chiral or achiral ring compounds
10/19/1989WO1989009764A1 Chiral or achiral cyclic compounds
10/10/1989US4873315 Perfluorinated propyl derivative compounds
08/1989
08/23/1989EP0215120B1 Cyclohexane derivatives
08/22/1989US4859363 Emulsions of perfluorocarbons in aqueous media
08/16/1989EP0248861B1 Dispirotetradecane
08/01/1989US4853397 Miticides
08/01/1989US4853151 Liquid crystals
07/1989
07/18/1989US4849553 Perfluorinated dibutyl derivatives compounds
07/11/1989US4846998 Cyclohexane derivatives
06/1989
06/01/1989WO1989004819A1 Derivatives of trifluoromethyl-1-tetralines, preparation and application thereof for the synthesis of compounds having therapeutic properties
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
05/09/1989CA1253887A1 Process for functionalizing alkanes
05/03/1989EP0313604A1 Electro-optical liquid crystal display element.
04/1989
04/04/1989US4818394 Separating agent
03/1989
03/29/1989EP0308438A1 Liquid crystal phase containing tolanes.
03/15/1989EP0306521A1 Ethine derivatives as compounds of liquid crystal phases.
03/15/1989EP0306505A1 Acetylene derivatives as components of liquid crystal phases.
03/01/1989EP0304809A1 Perfluorinated butyl derivative compounds
03/01/1989EP0304808A1 Perfluorinated propyl derivative compounds
01/1989
01/31/1989US4801761 Vapor phase soldering fluids
11/1988
11/08/1988US4783563 Preparation of hexabromocyclododecane
11/08/1988US4783526 Reacting sucrose with tritylating agent; acetylation, dealkylation, isomerization, and deacetylation
11/03/1988WO1988008441A1 Electro-optical liquid crystal display element
10/1988
10/20/1988DE3710890A1 Bicyclooctane derivatives
10/11/1988US4777304 Heat exchangers, vapor phase soldering, gas transportation, test fluids
10/11/1988US4777185 Phenyl phenoxyphenyl propenyl cyclopropane pesticides
10/06/1988WO1988007523A1 Acetylene derivatives as components of liquid crystal phases
10/06/1988WO1988007516A1 Ethine derivatives as compounds of liquid crystal phases
10/06/1988WO1988007514A1 Tolanes
09/1988
09/21/1988EP0282542A1 Process for the production of alkylene or cyclically linked compounds.
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