Patents
Patents for C07C 39 - Compounds having at least one hydroxy or o-metal group bound to a carbon atom of a six-membered aromatic ring (10,875)
12/2002
12/19/2002US20020193239 For use as catalysts in epoxidation of olefins, for oxidation of alcohols, oxidation of organic thiols; hydroxylation of aromatic compounds; ammoximation of ketones
12/18/2002EP0988268B1 Method for removing metal ions from cresol mixtures
12/18/2002CN1385410A Method for preparing phenol by directly hydrocylating benzene
12/18/2002CN1096293C Phenol hydroxylated catalyst
12/17/2002CA2155969C A multiple stage suspended reactive stripping process and apparatus
12/12/2002US20020188163 Obtaining diamondoid compositions enhanced in tetramantane components and other higher diamondoid components from a hydrocarbon feedstock; involves distillation and pyrolysis
12/12/2002US20020188162 High purity 9,9-bis-(hydroxyphenyl)-fluorene and method for the preparation and purification thereof
12/12/2002DE10211928A1 Verfahren zur Herstellung von Dihydroxybenzol Process for the preparation of dihydroxybenzene
12/11/2002EP1264822A2 Stabiliser modification
12/11/2002EP1263703A1 Initiation method of a method for producing 2,2-bis(4-hydroxyphenyl)propane
12/11/2002EP1263529A1 Methods for preparing an alkylation catalyst, and for ortho-alkylating hydroxyaromatic compounds; and related compositions
12/11/2002CN1384088A Extraction process of resveratrol from giant knotweed
12/11/2002CN1095820C Method for processing mother liquors from prodn. of bisphenol
12/10/2002US6492300 Methods for preparing polyphenylene ether resin
12/05/2002WO2002096901A2 1,3-dihydroxybenzene derivatives and colorants containing said compounds
12/05/2002WO2002096847A1 Process for the preparation of bisphenols with zeolites
12/05/2002WO2002096804A2 Processes for the purification of higher diamondoids and compositions comprising such diamondoids
12/05/2002US20020183562 Separating adducts of bis(4-hydroxyaryl)alkanes and aromatic hydroxy compounds
12/05/2002DE10126432A1 Fluor enthaltende Bisphenole, deren Herstellung, deren Vor- und Zwischenprodukte sowie die Verwendung der Fluor enthaltenden Bisphenole Fluorine-containing bisphenols, bisphenols their preparation, their materials and intermediates, and the use of fluorine-containing
12/05/2002CA2445647A1 1,3-dihydroxybenzene derivatives and colorants containing said compounds
12/05/2002CA2435407A1 Processes for the purification of higher diamondoids and compositions comprising such diamondoids
12/04/2002EP1262471A2 Fluorine-containing bisphenols, their preparation, intermediates towards their preparation, and their use
12/04/2002EP1261573A2 Asymmetric ligands having use as catalysts
12/04/2002EP0993429B1 Method for producing and purifying 3-(4-hydroxyphenyl)-1,1,3-trimethylindan-5-ol
12/04/2002EP0929507B1 Process for the hydroxylation of benzene
12/03/2002US6489517 Chlorinating dialkylphenol, oxidatively coupling product in polar aprotic solvent to produce dichlorotetraalkylbiphenol, dechlorinating to produce tetraalkylbiphenol, brominating or iodinating if desired
11/2002
11/28/2002US20020177743 Diamondoids
11/28/2002US20020177740 Catalyst promotor for the manufacture of polyphenols
11/27/2002EP1260504A1 Process for the preparation of antihistaminic 4-diphenylmethyl piperidine derivatives
11/27/2002EP1259470A2 A group of anti-cancer compounds with specific structure and their production method
11/27/2002EP0585267B1 Herpesvirus particle preparation and vaccine
11/27/2002CN1382113A Diolefin/hydroxyaryl condensates and catalyst therefor
11/26/2002US6486365 Production and purification of phenol: hydroxyacetone removal by hydrotalcite
11/26/2002US6486364 Prepared from acidic resins such as sulfonated polystyrene by neutralization of portion of acidic functional groups present with amine such as pyridine; catalyst selectivity
11/26/2002US6486363 Process for the manufacture of bis(4-hydroxyaryl)alkanes
11/26/2002US6486339 Using zeolite
11/26/2002US6486222 From phenol and acetone
11/21/2002WO2002092546A1 Method for the preparation of cumylphenol
11/21/2002WO2002091993A2 Estrogen receptor modulators
11/21/2002CA2445922A1 Estrogen receptor modulators
11/20/2002EP1257517A1 Process for preparing cumene which is used in the preparation of phenol
11/20/2002EP1257264A1 Estrogen receptor modulators
11/14/2002WO2002090303A1 Process for extracting phenol by optimization of alkali usage
11/14/2002US20020169222 Method for reclaiming waste cured resin
11/14/2002US20020169071 Forming, in the absence of the ionic liquid, a functionalised support material containing, a first compound bonded to the support and having a free anion or cation group which is reacted with ionic liquid containing other anion or cation
11/13/2002EP1256561A1 Process for decreasing by extraction the salt content of fractions comprising high boiling compounds which are obtained in the preparation of phenol from cumene
11/13/2002CN1379751A Method for purifying acetone
11/13/2002CN1379747A Liquid phase catalytic hydrogenation process to convert aldehydes to corresponding alcohols
11/13/2002CN1094118C Method of stabilizing color of nonyl phenol
11/13/2002CN1094117C Method of maintaining color of nonyl phenol
11/12/2002US6479663 Intermediates useful for the preparation of antihistaminic piperidine derivatives
11/06/2002CN1377935A Hinered phenols antioxidant composition
11/05/2002US6476277 Oxidizing aromatics with dintrogen monoxide in the gas phase in the presence of nanocrystalline zeolites
11/05/2002US6476273 Method for producing phosphonium phenolates
11/05/2002US6476250 Optically active fluorinated binaphthol derivative
11/05/2002US6476179 Process for producing raw polycarbonate resin material and producing polycarbonate resin
11/05/2002US6475465 Crystal structure
10/2002
10/31/2002WO2002085830A1 Process for producing bisphenol a
10/31/2002WO2002085829A1 Process for production of dimers of aromatic monohydroxyl compounds
10/31/2002WO2002085828A1 Regeneration of catalysts used in the manufacture of bisphenols
10/31/2002US20020161206 For inhibiting tumor cell growth
10/30/2002EP1253129A1 High purity 9,9-bis-(4-hydroxyphenyl)-fluorene and method for the preparation and purification thereof
10/30/2002EP1253128A1 Perfluoroisopropylbenzene derivatives
10/30/2002CN1377261A Treatment of immune diseases
10/30/2002CN1376728A Recovery method for waste solidified resin
10/30/2002CN1376664A Propynyl or diene diaryl compounds
10/24/2002WO2002083611A1 Catalyst promoter for the manufacture of polyphenols
10/24/2002US20020156324 Treating symptoms linked to menopause in mammals
10/23/2002CN1375484A Method for preparing 2,2'-di(4-hydroxy-cyclohexyl) propane
10/23/2002CN1093119C Process for producing 1,3-di-(2-hydroperoxy-2-propyl) benzene
10/23/2002CN1093111C Process for preparation of 4-hydroxybiphenyl
10/17/2002WO2002081047A1 Method for eliminating oxygenated organic molecules that are present in an organic effluent using alumina agglomerates
10/16/2002EP1249442A1 Novel arylpropionaldehyde derivatives and production and use of the same
10/16/2002EP1248765A1 Lead halophenoxides and carbonylation catalyst and method for preparing and employing them
10/16/2002EP1248760A1 An eco-friendly method of preparation of high purity tetrabromobisphenol-a
10/16/2002EP1248759A1 Method for production of phenol and acetone by decomposition of cumene hydroperoxide
10/16/2002CN1092629C Process for producing 3,5-dimethylphenol
10/16/2002CN1092628C Production of bisphenol by using modified ion exchange resin with special porous structure as catalyst
10/15/2002US6465697 Reactin a phenolic compound reactant, a carbonyl compound reactant, and a catalyst promoter comprising a dithioketal compound in the presence of an acid catalyst.
10/15/2002US6464838 Process for the recovery of compounds present in the heavy products after their preparation
10/10/2002US20020147373 Compositions comprising octamantanes and processes for their separation
10/10/2002US20020147241 Combination ion exchange resin bed for the synthesis of bisphenol a
10/09/2002CN1092177C Method for preparation of p-fuchsone
10/09/2002CN1092176C Low metal ion contg. 4,4'-[1-[4-[1-(4-hydroxyphenyl)-1-methylethyl]phenyl]-ethylidene]bisphenol and photoresist compositions therefrom
10/08/2002CA2054105C A method for preparing a salt of 4-hydroxystyrene and for preparing 4-tertiary-butoxycarbonyloxystyrene therefrom
10/03/2002WO2000043334A3 Method and installation for separating and purifying diphenols in the phenol and phenol derivatives industry
10/03/2002WO1998011042A3 Preparation of 4,4'-dihydroxy-alpha-alkylstilbene with reduced dimer formation
10/03/2002US20020143134 Process for the neutralization of residual acid species in crude dihydric phenols
10/03/2002US20020142923 Hindered phenolic antioxidant compositions
10/03/2002US20020142409 Biocatalytic synthesis of quinic acid and conversion to hydroquinone
10/03/2002US20020139295 Compositions comprising undecamantanes and processes for their separation
10/03/2002EP1144347A3 Method and installation for separating and purifying diphenols in the phenol and phenol derivatives industry
10/03/2002EP0927148A3 Preparation of 4,4'-dihydroxy-alpha-alkylstilbene with reduced dimer formation
10/02/2002EP1244607A1 Fluidised bisphenol dust
10/02/2002EP1000004B1 Method for producing tetrabutyl ammonium phenolate diphenol adduct
10/02/2002EP0994836B1 Method for producing and purifying 3-(4-hydroxyphenyl)-1,1,3-trimethylindan-5-ol
10/02/2002CN1371897A Process for synthesizing orthophenylphenol from cyclohexanone
10/01/2002US6459004 Yielding a product containing high-purity isopropenylphenol and phenol is disclosed, including (1) a cleavage step of supplying the mixture containing bisphenols together with chroman derivatives and flavan derivatives formed as
09/2002
09/26/2002WO2002057201A3 Polymerizable higher diamondoid derivatives
09/26/2002US20020137961 Use as skin lightening agents; 4-(1,4-Dioxaspiro(4.5)dec-8-yl)-1,3-benzenediol for example
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