Patents
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Patents for C07C 15 - Cyclic hydrocarbons containing only six-membered aromatic rings as cyclic part (13,158)
12/1990
12/19/1990EP0403331A1 Process for the separation of two isomers and, its use in the purification of 1-phenyl-2-bromoethane
12/12/1990EP0402202A1 Process for the preparation of alkylbenzenes using a catalyst based on a dealuminised zeolite y, and a catalyst based on a dealuminised mordenite
12/12/1990CN1047668A Method of recovering epoxy chloropropane and toluene
12/05/1990EP0400857A1 Process for preparing long chain alkyl aromatic compounds
12/04/1990US4975407 Catalyst for dehydrogenating organic compounds, a process for its preparation and its use
12/04/1990US4975267 Stable K2 FE22 O34 potassium ferrite phase and method of manufacture
12/04/1990US4975258 Sodium oxide, potassium oxide, quinuclidine, tetraethylammonium chloride or hydroxide and silicon or germanium oxide
12/04/1990CA1277336C Perhydrofluorene derivatives, process for producing same and fluids fortraction drive
12/04/1990CA1277335C Fluid composition and process for preparation thereof
11/1990
11/30/1990CA2017078A1 Process for preparing long chain alkyl aromatic compounds
11/29/1990WO1990014323A1 Process for the synthesis of aromatic alkylated hydrocarbons
11/29/1990WO1990014160A1 Alkylation catalyst and processes for its use
11/28/1990EP0399284A2 Method for the production of geminal diarylalkanes, geminal diarylalkanes and alk(en)ylated aromatic compounds
11/27/1990US4973781 Zeolite ZSM-57 and catalysis therewith
11/27/1990US4973780 Continuous regeneration of catalyst in controlled oxygen environment
11/22/1990DE3916452A1 Prodn. of insecticidal 1-alkyl-1,4-di:aryl-butane derivs. - from 3-alkyl-3-aryl-propyne and aromatic aldehyde
11/20/1990CA1276653C Selective production of para-aromatics
11/15/1990DE3930663C1 Cross-coupling metal organic cpds. and e.g. halogen cpds. - includes using transition metal-palladium catalyst and opt. metal alcoholate
11/14/1990EP0397483A2 Multistage ethylbenzene dehydrogenation process with split-flow hydrocarbon feed
11/07/1990EP0396475A1 Preparation of heavy metal carbides having high specific surface area
10/1990
10/18/1990WO1990012072A1 Styrene polymerization inhibitor
10/18/1990WO1990011986A1 Aromatic alkylation with alpha-olefin dimer
10/16/1990CA1275264C Process for the separation of c10 aromatics isomers
10/16/1990CA1275168C Temperature stable liquid composition
10/09/1990US4962274 Clathrating with 9,9'-bianthracene
10/09/1990US4962252 Catalytic oxidative coupling
10/09/1990US4962250 Containing a group eight metal and has a porous crystalline structure
10/04/1990WO1990011251A1 Production of heavy metal carbides with high specific surface area
10/03/1990EP0390322A2 Naphthalene compounds
10/03/1990EP0390058A1 Catalyst composition, process for cracking non-aromatic hydrocarbons and process for isomerizing C8 aromatic hydrocarbons
10/03/1990EP0389530A1 New catalysts based on zeolites modified by alkaline elements in metallic form, their preparation and their application to the alkylation of alkyl aromatic derivatives.
10/03/1990CN1009820B Process for preparing molecular sieve composed of oxides of zn, al, p and si
10/02/1990US4960583 Oxide having a trivalent metal or monovalent metal or any mixture of them
10/02/1990CA1274853A1 Production of aromatics from ethane and/or ethylene
09/1990
09/28/1990CA2013142A1 Method for obtaining heavy metal carbides with high specific surface
09/27/1990CA2013150A1 Photosensitive compound
09/26/1990EP0388977A2 Polycyclic amines useful as cerebrovascular agents
09/26/1990EP0388768A2 Organic electroluminescent device containing aromatic dimethylidyne compounds
09/26/1990EP0383793A4 Process to produce aromatics of low acid-wash color
09/25/1990US4959491 Detergent grade olefins, alkylbenzenes and alkylbenzene sulfonates and processes for preparing
09/23/1990CA2012866A1 Polycyclic amines useful as cerebrovascular agents
09/21/1990WO1990011338A1 Process for the conversion of c2-c12 paraffinic hydrocarbons to petrochemical feedstocks
09/21/1990WO1990011266A1 Process for the production of alkyl aromatic hydrocarbons
09/21/1990CA2028144A1 Process for the conversion of c -c paraffinic hydrocarbons to petrochemical feedstocks
09/21/1990CA2027573A1 Process for the production of alkyl aromatic hydrocarbons
09/19/1990EP0388324A1 Process for the preparation of aromatic hydrocarbons from alkanes
09/19/1990EP0387690A1 Process for preparing a syndiotactic polyolefin
09/18/1990US4957815 Rupturable microcapsules
09/12/1990EP0387080A1 Alkylation of organic aromatic compounds
09/12/1990EP0386845A1 Solid catalyst functionalized with sulfonic groups, process for preparing it and its use
09/11/1990US4956520 P-xylene separation and purification, crystallization, cooling, washing then melting
09/11/1990US4956120 Polyarylalkane oligomer compositions and process for their manufacture
09/11/1990CA2011879A1 A process for the preparation of a syndiotactic polyolefin
09/11/1990CA1273962A1 Dehydrogenation process for production of styrene from ethylbenzene comprising low temperature heat recovery and modification of the ethyl-benzene-steam feed therewith
09/10/1990CA2011858A1 Alkylation of organic aromatic compounds
09/08/1990WO1990010686A1 Method of producing insulating oil comprising dibenzylbenzene
09/07/1990WO1990009845A1 Mordenite-based catalyzer containing at least one metal from the iia, ivb or iva groups and its use in the isomerization of an aromatic c8 fraction
09/05/1990CN1045089A Compositions based on polyphenylmethanes, process for manufacture and application as dielectric
09/04/1990US4954326 Preparation of crystalline aluminosilicate zeolite, and its product
09/04/1990US4954082 Reciprocating dental tool
08/1990
08/29/1990EP0384818A1 Compositions based on polyphenyl methanes, process for their preparation and their use as dielectricums
08/29/1990EP0383937A1 Process for treating by-product oil
08/29/1990EP0383793A1 Process to produce aromatics of low acid-wash color
08/29/1990EP0246272B1 Silica-titania hydrocarbon conversion catalyst
08/28/1990US4952750 Melting crystalline phase of a crude product, separating, drawing off p-xylene
08/28/1990US4952546 Catalyst system for selective alkylation of toluene
08/28/1990CA1273364A1 Process for dimerization of aromatic halide compounds
08/25/1990WO1990010201A1 Sun exposure monitoring device
08/25/1990CA2047734A1 Sun exposure monitoring device
08/21/1990US4950834 Reacting benzene and propylene to produce cumene; omega type and Y type molecular sieves
08/21/1990US4950825 Catalytic cyclization of 5-tolyl-(or phenyl-) pent(hex)-1 or 2-ene using zeolite catalyst
08/21/1990US4950824 Reacting monoisopropylnaphthalene with propylene and transalkylation of mixture formed
08/21/1990US4950691 Combustion under oxygen deficient conditions, aromatization, using zeolite catalyst
08/14/1990CA1272709A1 Catalyst system for the production of aromatics from aliphatic hydrocarbons
08/08/1990EP0381026A2 Optical oxygen sensor
08/07/1990US4946819 Phosphorus-antimony-containing catalyst for oxidation
08/07/1990US4946815 Controlled temperature and steam during crystallization
08/07/1990CA1272489A1 Process for the condensation of carbonyl and aromatic compounds
08/03/1990CA2009024A1 Optical oxygen sensor
08/01/1990EP0257049B1 Chiral compounds
08/01/1990EP0256097B1 Vinyl compounds and liquid crystal phase
07/1990
07/31/1990US4944848 Process for the purification of 1,1-diphenylethane with good fragrance quality
07/31/1990CA1272219A1 Methylene linked aromatic pour point depressant
07/28/1990WO1990008756A1 Diphenylethanes
07/28/1990CA2026112A1 Biphenylylethanes
07/25/1990EP0378916A1 Catalytic reactions using zeolites
07/25/1990CN1044052A Catalytic reactions using zeolites
07/24/1990US4943671 Reductive dehalogenation of organic halogen compounds
07/17/1990CA1271782A1 Xylene isomerization process
07/11/1990EP0377516A2 Liquid crystal compounds having high optical anisotropy
07/11/1990EP0377305A1 Novel alkylaromatic lubricant fluids
07/10/1990US4940832 Process for separating 2,6-dimethylnaphthalene
07/10/1990US4940707 Stilbene derivatives for treatment of skin disorders
07/10/1990CA1271495A1 1,1-(3-ethylphenyl)phenylethylene and method for preparing it
07/04/1990EP0376856A1 Preparation of biaryl compounds
07/04/1990EP0290861B1 Process for the reductive dehalogenation of organic halogenated compounds
07/04/1990CN1043492A Selective production of 2,6-diethylnaphthalene
07/03/1990US4939110 Catalyst for the isomerization of aromatics
07/03/1990US4938937 Crystalline aluminophosphate composition
07/03/1990CA1271201A1 Product recovery method for dehydrocyclodimerization process
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