Patents
Patents for C07C 57 - Unsaturated compounds having carboxyl groups bound to acyclic carbon atoms (12,415)
12/1990
12/13/1990WO1990014824A1 Use of essential fatty acids for the preparation of a drug for the treatment of eczema
12/12/1990EP0402104A2 Racemization of a carboxylic acid
12/07/1990CA2018295A1 Racemization of a carboxylic acid
12/05/1990EP0400892A2 Method for producing ibuprofen
12/05/1990EP0400692A1 Process for producing Si02 Sn02 mixed oxide
12/05/1990CN1010680B Compoundedinhibitor of polymerization for methacrylic acid and esters thereof
12/04/1990US4975258 Sodium oxide, potassium oxide, quinuclidine, tetraethylammonium chloride or hydroxide and silicon or germanium oxide
12/04/1990CA1277332C Phenyl nonatetraenoic acid derivatives
11/1990
11/29/1990WO1990014325A1 Process for producing methacrylic acid and methacrolein
11/29/1990WO1990014073A1 Pharmaceutical preparation
11/28/1990CN1047278A Process for producing acrylic ester
11/27/1990US4973745 Forming salt with p-nitrophenyl-aminopropanediol, crystallization, ibuprofen, flurbiprofen, carprofen
11/26/1990WO1990014081A1 Onset-hastened/enhanced antipyretic response
11/22/1990EP0398633A1 Method and compositions for inhibiting polymerization of acrylic acid monomers
11/22/1990EP0398288A2 Process for preparing optically active 2-arylalkanoic acids, in particular 2-arylpropionic acids
11/22/1990EP0398287A1 Pharmaceutical preparation
11/22/1990EP0398226A2 Process for producing acrylic ester
11/20/1990US4971997 Antiinflammatory agents, leukotrienes
11/16/1990CA2016888A1 Pharmaceutical preparation
11/16/1990CA2016887A1 Process for preparing optically active 2-aryl-alkanoic acids, in particular 2-aryl propionic acids
11/15/1990CA2016669A1 Process for producing acrylic ester
11/14/1990EP0396841A1 Fluorinated arachidonic acid derivatives
11/14/1990CN1046892A Fluorinated arachidonic acid derivatives
11/13/1990US4970336 Method of purifying α-substituted acetic acids
11/13/1990US4970234 Furyl, phenylene, and thienyl leukotriene B4 analogues
11/13/1990US4970229 Antiinflammatory agents
11/13/1990CA1276177C2 Process for the optical resolution of racemic mixtures of -naphthyl-propionic acids
11/13/1990CA1276176C Purification of crude sorbic acid
11/07/1990CN1046734A Process for preparation of hexene-1,6-diacid
11/07/1990CN1046733A Process for preparation of beta, alpha-unsaturated acids
11/06/1990US4968838 Process for the preparation of unsaturated carboxylic acids
11/06/1990US4968834 Recycling aqueous phase to distillation zone
11/06/1990CA1276032C Polyene compounds
10/1990
10/31/1990EP0395546A2 Process for preparing beta,gamma unsaturated carboxylic acids
10/31/1990EP0395545A2 Process for preparing 1,6-hexenedioic acids
10/31/1990EP0395199A1 Substituted tetrahydroindane derivatives and their use as intermediates
10/31/1990EP0394644A2 Halobenzene derivatives
10/30/1990US4967009 Reacting unsaturated aromatic compounds with aromatic iodosyl compounds to yield aromatic aldehydes or ketones
10/30/1990US4966995 Process for the preparation of chlorides of carboxylic acids
10/30/1990US4966990 Oxidative dehydrogenation of isobutyric or butyric acid ester
10/30/1990US4966877 Method for making heteropolyacid catalysts and catalysts made by the method
10/26/1990WO1990012857A1 Novel lubricant additives
10/24/1990CN1046325A Titanium-based equipment for producing acrylic acid
10/24/1990CN1046324A Recovery process of acrylic acid from waste oil containing acrylic acid
10/10/1990CA2013432A1 Quaternary ammonium compounds having muscle relaxation activity
10/09/1990CA1275093A1 Carbacyclins, processes for their manufacture and their use as pharmaceuticals
10/03/1990CN1045772A 2-halogencyclopropylethane derivates, processes of preparation and use as pesticide thereof
10/02/1990CA1274847A1 Process for the extractive separation of a carboxylic acid form an aqueous solution
09/1990
09/26/1990EP0388739A1 Tetrahydronaphthalene derivates
09/26/1990CN1045576A Pesticides
09/25/1990CA1274541A1 Purification process of methacrylic acid
09/20/1990CA2011461A1 Tetrahydronaphthalene derivatives
09/19/1990EP0387974A2 Derivatives of 2-halogen cyclopropyl ethane, method for their preparation and their use as pesticides
09/19/1990EP0387790A2 Novel monoterpenes
09/19/1990EP0387502A1 Process for recovering catalyst for use in preparing 1-(4-isobutylphenyl) propionic acid
09/19/1990EP0387346A1 Novel polymeric dispersants having alternating polyalkylene and succinic groups.
09/18/1990CA1274251A1 Process for the hydrocarboxylation of acetylenically unsaturated compounds
09/15/1990CA2012160A1 2-halocyclopropylethane derivatives, processing for their preparation and their use as pesticides
09/12/1990EP0387116A1 Process for preparing acrylyl chloride
09/11/1990CA1273919A1 Prostaglandin derivatives, their preparation and use
09/07/1990WO1990010616A1 Process for the manufacture of acryloyl chloride
09/07/1990WO1990009977A1 Calcium ion complex with at least one unsaturated acid and pharmaceutical composition incorporating it
09/04/1990US4954650 Method for production of methacrylic acid
09/04/1990US4954525 Polyprenyl acid, amide or ketone
09/04/1990CA1273643A1 Process for producing z-2-methyl-2-butenoic acid
09/04/1990CA1273630A1 Deprotection of allylic esters and ethers
09/02/1990CA2011251A1 Organic sludge dehydrater
08/1990
08/29/1990EP0384755A1 Method for regenerating catalyst for oxidative dehydrogenation of isobutyric acid
08/29/1990EP0186694B1 Process for recovery of methacrylic acid
08/29/1990CN1009339B Process for production of composite oxide catalysts
08/28/1990US4952244 Protective coatings for polyacetylenic recording media
08/23/1990WO1990009110A1 Methods of preserving products and novel compositions therefor
08/22/1990EP0383724A2 Polymerization of maleic-acid anhydride
08/22/1990EP0383128A1 Process for the fluorination of acrylic acid and derivatives thereof, and fluorinated esters of 2,3-difluoropropionic acid
08/14/1990CA1272737A1 Oxidation of 2-arylpropanals
08/14/1990CA1272731A1 Anthracene derivatives
08/07/1990US4946997 Using acid anhydride and its conjugate base
08/07/1990CA1272448A1 Pharmaceutical composition containing at least one benzonorbornen derivative as active principle
08/01/1990EP0380392A2 Derivatives of benzocycloalkenyl dihydroxyalkanoic acids, methods of making them and phrmaceuticals containing them
08/01/1990EP0379987A2 Process for the preparation of alpha-arylalkanoic acids
08/01/1990EP0379963A1 Extraction and seperation method and apparatus using supercritical fluid
08/01/1990EP0379691A1 Process for preparing unsaturated carboxylic acid or ester thereof
07/1990
07/31/1990US4945106 Prostaglandins
07/27/1990CA2007392A1 Process for the preparation of .alpha.-arylalkanoic acids
07/24/1990US4943653 Novel fluorine-containing acrylic acid derivative and polymer thereof
07/17/1990US4942231 Method of preparing a chlorinated, brominated, radio-brominated, iodinated and/or radioiodinated aromatic or heteroaromatic compound
07/10/1990US4940787 Process for the carbonylation of acetylenic unsaturated compounds
07/04/1990EP0376819A1 Acrylated polyamines, process for their preparation and their use as fungicides
07/04/1990EP0376117A1 Preparation of methacrylic acid by the oxidation of methacrolein
07/03/1990US4939261 N-substituted butyramide derivatives useful for treatment of conditions responsive to inhibition of enkephalinase
06/1990
06/27/1990EP0374233A1 Dihalogeno-3,3 fluoro-2 propenols-1, preparation method and utilization for the synthesis of fluoro-2 acrylic and dihalogeno-3,3 fluoro-2 acrylic acids and their derivatives
06/26/1990US4937379 Carboxylic acid synthesis process
06/26/1990US4937375 (Phenylethenyl)phenylpropionic acid and its ester, and method for producing (benzoylphenyl)propionic acid or its ester
06/26/1990US4937362 Process for production of α-(4-isobutylphenyl)propionic acid
06/26/1990US4937320 Dimerized fatty acid having a high content of dicarboxylic acid
06/20/1990CN1043123A Anhydrous diluents for isobutylene oxidation reaction to methacrolein and methacrolein oxidation to methacrylic acid
06/13/1990EP0372706A2 Process for production of acrylate and acrylate-containing polymer
06/13/1990EP0372651A2 Succinic acid derivatives and their use as lubricant additives
06/06/1990EP0371748A2 Inhibition of polymerization during distillation of monomers
06/05/1990US4931591 Novel 5-amino-4-hydroxyvaleryl derivatives