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)
02/1999
02/18/1999WO1998046342A3 Preparation of low-dust stabilisers
02/18/1999DE19728379C1 Herstellung und Reinigung von 3-(4-Hydroxyphenyl)-1,1,3-trimethylindan-5-ol Preparation and purification of 3- (4-hydroxyphenyl) -1,1,3-trimethylindan-5-ol
02/18/1999DE19728377C1 Herstellung und Reinigung von 3-(4-Hydroxyphenyl)-1,1,3-trimethylindan-5-ol Preparation and purification of 3- (4-hydroxyphenyl) -1,1,3-trimethylindan-5-ol
02/17/1999EP0896519A1 Colorants for colouring keratin fibres
02/17/1999CN1208398A Process for the preparation of para-fluorophenol
02/16/1999US5872301 Bifunctional precursors for the preparation of liquid crystals
02/11/1999DE19727351C1 Verfahren zur Herstellung von Phosphoniumphenolaten A process for preparing phosphonium
02/03/1999EP0894783A1 Process for the synthesis of phenol from benzene
02/03/1999EP0894123A1 Improvements in or relating to calixarenes
02/02/1999US5866724 Positive resist composition and photosensitizers
01/1999
01/29/1999CA2240612A1 Preparation of phenol and its derivatives
01/27/1999EP0892773A2 Preparation of aromatic hydroxycarboxylic acids and dialkali metal salts thereof
01/26/1999CA2102289C Process for high purity tetrabromobisphenol-a
01/21/1999WO1999002474A2 Method for producing tetrabutyl ammonium phenolate diphenol adduct
01/21/1999WO1999002473A1 A process for the preparation of para-fluorophenol
01/21/1999WO1998034894A3 Hydroperoxide decomposition process
01/20/1999EP0891960A1 Process for the preparation of pyrocathecol mono ethers and pyrocathecols
01/20/1999EP0891393A1 Asymmetric benzoxanthene dyes
01/20/1999EP0701577B1 Polymer alkylation of hydroxyaromatic compounds
01/20/1999CN1205683A Improved process for prodn. of bisphenols
01/20/1999CN1205324A Preparation of catechol monoethers and catechols
01/14/1999WO1999001415A1 Method for producing and purifying 3-(3-hydroxyphenyl)-1,1,3-trimethylindan-5-ol
01/14/1999WO1999001414A1 Method for preparing and purifying 3-(4-hydroxyphenyl)-1,1,3-trimethylindan-5-ol
01/14/1999WO1999001413A1 Method for producing and purifying 3-(4-hydroxyphenyl)-1,1,3-trimethylindan-5-ol
01/14/1999DE19730022A1 Verfahren zur Herstellung von Tetrabutylammoniumphenolat-Diphenoladdukt A process for the production of tetrabutylammonium phenolate diphenol adduct
01/13/1999EP0890564A2 Process for the preparation of a p-dihydroxyl aromatic compound
01/12/1999US5859267 Process for improving color of basic metal organic salts and stabilizing halogen-containing polymers therewith
01/12/1999US5859067 Preparing bis(2-hydroxy-1-naphthyl)decane from the corresponding diacid; forming acid dichloride; treating with 2-naphthol; rearrangement; reduction; inhibits action of adenosine triphosphatase
01/07/1999WO1999000395A1 Method for producing phosphonium phenolates
01/07/1999WO1999000346A1 Synthesis of dihydrohonokiol compositions
01/07/1999EP0889018A1 Preparation of phenol and its derivatives
01/07/1999CA2297723A1 Synthesis of dihydrohonokiol compositions
01/07/1999CA2294868A1 Method for producing phosphonium phenolates
01/05/1999US5856589 Method to defoul bisphenol-phenol adduct fouled crystallizer coolers
01/05/1999US5856542 Process for preparing N,N'-disubstituted P-quinonediimines, their use and organosilanes containing methacryloxy or acryloxy groups, processes for their stabilization and their preparation
12/1998
12/30/1998WO1998058893A1 Method for chlorinating halogenated phenols
12/30/1998EP0887333A1 Process for the production of halogeno-o-hydroxydiphenyl compounds
12/30/1998EP0683761B1 A novel process for the production of high purity and ultrapure bisphenol-a
12/30/1998CN1203572A Method for c-alkylating hydroxylated aromatic compounds
12/30/1998CN1203535A Thermally-managed separation and dewatering processes for recovering acid products
12/30/1998CN1203219A Process for production of halogeno-O-hydroxydiphenyl compounds
12/30/1998CN1203218A Separation and purification method of T-butyl-methylphenol isomer
12/23/1998EP0885865A1 Process for producing phenols
12/23/1998EP0701546B1 Aromatic acetylcholinesterase inhibitors
12/22/1998US5852090 Norbornene-substituted bisphenol antioxidants
12/22/1998US5851837 Method for determination of salt stoichiometry
12/16/1998CN1201776A Synthesis of p-cresol by direct alkali fusion method from toluene-p-sulfonic acid
12/15/1998US5849961 Optically active 1,1'-biphenanthryl-2,2'-diol, process for preparing the same, and resolving reagent comprising the same
12/15/1998US5849959 Derivatives of 2, 3, 6-trifluorophenols and a process for their preparation
12/09/1998EP0882005A1 Phenol compound hydroxylation method
12/09/1998CN1200875A Controlled-release composition
12/08/1998US5847237 Catalyst for ortho-alkylation of phenols, a precursor thereof, and production of ortho-alkylated phenols by use of said catalyst
12/08/1998US5847236 Process for the preparation of 2-chloro-4-methylphenol
12/08/1998US5847235 Method of phenol tar desalting
12/08/1998US5847234 Process for the preparation of 4-hydroxybiphenyl
12/08/1998US5847232 Process for the preparation of tetrabromobisphenol-A
12/02/1998EP0880892A1 Controlled release compositions
12/02/1998EP0880496A1 Biphenyl compounds and use thereof as oestrogenic agents
11/1998
11/28/1998CA2238230A1 Controlled release compositions
11/26/1998WO1998052905A1 New polymerisable liquid crystalline compounds
11/26/1998WO1998052899A1 Polyhydroxybenzene derivatives and preventive/remedy for bone and cartilage diseases
11/26/1998WO1998052897A1 Method for processing mother liquors from the production of bisphenol
11/26/1998WO1998052896A1 Method for continuous production of dihydroxydiphenylalkanes
11/26/1998WO1998052895A1 Method for continuous production of dihydroxydiarylalkanes
11/25/1998EP0879814A1 Triaromatic compounds, compositions containing them and uses thereof
11/25/1998CN1200025A Antiplaque oral composition
11/24/1998US5840999 Asymmetric benzoxanthene dyes
11/19/1998DE19720541A1 Verfahren zur kontinuierlichen Herstellung von Dihydroxydiphenylalkanen A process for the continuous production of Dihydroxydiphenylalkanen
11/19/1998DE19720540A1 Verfahren zur Aufarbeitung von Mutterlaugen aus der Bisphenolsynthese Process for working up mother liquors from the bisphenol synthesis
11/19/1998DE19720539A1 Verfahren zur kontinuierlichen Herstellung von Dihydroxydiarylalkanen A process for the continuous production of dihydroxydiarylalkanes
11/18/1998EP0878457A1 Separation and purification method of tert.-butyl-methylphenol isomers
11/18/1998EP0877607A1 Biphenyl compounds and use thereof as oestrogenic agents
11/18/1998CN1199040A Process for preparation of o-secondary butyl phenol
11/17/1998US5837162 Cyclic ethers for liquid crystal displays
11/11/1998EP0876319A1 Improved process for the production of bisphenols
11/11/1998CN1198668A Naphthyl and dihydronaphthyl intermediates, compounds, compositions, and methods
11/11/1998CN1198430A Process for preparing 3,5-dimethylphenol
11/10/1998US5834521 Treatment of progestin mediated maladies; osteoporosis, cancer
11/10/1998US5834506 Treatment of hiv, aids; antiviral activity improved by judicious placement of polar substituents
11/04/1998EP0875494A1 Process for the preparation of 3,5-dimethyl phenol
11/04/1998CN1198149A Low metal ion containing 4,4'-(1-(4-(1-(4-hydroxyphenyl)-1-methylethyl) phenyl) ethylidene) bisphenol and photoresist compositions therefrom
11/04/1998CN1197786A Oil-soluble tea polyphenol and its preparation
11/04/1998CN1197785A Preparation of o-isopropyl phenol
11/03/1998US5830935 Color of basic metal organic salts by employing C7 -C17 alkyl glycidyl esters and stabilized halogen-containing polymers
10/1998
10/28/1998EP0873983A2 Process for decomposition of cumene hydroperoxide
10/28/1998CN1197055A 2,6-isopropyl-phenol preparing method
10/22/1998WO1998046342A2 Preparation of low-dust stabilisers
10/21/1998EP0871527A1 Thermally-managed separation and dewatering processes for recovering acid products
10/21/1998EP0731786B1 Biphenyl iodinated derivatives and their diagnostic use
10/21/1998CN1040316C Process for production of cresols
10/21/1998CN1040294C Process for production of granula of 2,2-bix(4-hydroxy phenyl) propane
10/13/1998US5821264 Used in foodstuffs and dietary supplements to decrease lipoprotein concentration or increase feed conversion
10/07/1998EP0868417A2 Method to prepare ortho substituted phenol
10/07/1998CN1194966A Process for extracting high-purity tea polyphenols
10/07/1998CN1040062C Process for preparing pharmacologically active catechol derivatives
10/06/1998US5817890 Aromatizing of a corresponding cyclohexane epoxy compounds
09/1998
09/23/1998CN1039902C Combined process for production of 1-naphthol and beta-naphthol
09/22/1998US5811598 Process for the recovery of phenol from an aqueous stream containing NA.sub. SO4
09/22/1998US5811421 Naphthyl and dihydronaphthyl intermediates, compounds, compositions, and methods
09/17/1998WO1998040158A1 Synergistic mixtures of alkyl phenol formaldehyde resins with oxalkylated amines as asphalt dispersing agents
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