Patents for C07C 37 - Preparation of compounds having hydroxy or o-metal groups bound to a carbon atom of a six-membered aromatic ring (10,407) |
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03/05/1997 | CN1034168C Method for preparation of bisphenols by phenol and aldehyde or ketone catalyst condensation |
03/04/1997 | US5608120 Process for the preparation of (arylethyl)-hydroquinones and diesters thereof |
03/04/1997 | US5607890 Supported Lewis acid catalysts derived from superacids useful for hydrocarbon conversion reactions |
02/26/1997 | EP0759449A2 Process for the preparation of methyl-substituted polyalkylidene polyphenols |
02/26/1997 | CN1143539A Micro-porous resin encased nm-particle catalyst for synthesizing benzenediol by hydroxylation of phenol with hydrogen peroxide |
02/19/1997 | EP0758638A1 Cristallisation forms of an adduct of bisphenol-A with bisphenol-TMC |
02/19/1997 | EP0758637A1 Process for the purification of bisphenol-A |
02/19/1997 | EP0758636A1 Process for the treatment of waste water from a bisphenol-A preparation process |
02/12/1997 | CN1142485A Circulation use of production of phenol from sebacic acid |
02/12/1997 | CN1142481A Extraction of theapolyphenols |
02/11/1997 | US5602196 Bisphenol ester derivatives |
02/05/1997 | CN1142201A Supported lewis acid catalysts for hydrocarbon covnersion reactions |
01/29/1997 | EP0755371A1 Method for production of phenol and its derivatives |
01/29/1997 | EP0755301A1 Catalysts for production of phenol and its derivatives |
01/22/1997 | EP0754666A2 Process for the preparation of bis-(4-hydroxyaryl)alcanes |
01/15/1997 | EP0752914A1 Supported lewis acid catalysts for hydrocarbon conversion reactions |
01/15/1997 | EP0752912A1 Supported lewis acid catalysts derived from superacids useful for hydrocarbon conversion reactions |
01/08/1997 | EP0752405A2 Process for the production of phenol |
01/07/1997 | US5591311 Process for purifying a 2,6-dialkylphenol |
01/07/1997 | CA2079731C Process for the debromination of naphtol dibrominated derivatives |
01/01/1997 | CN1139107A Method for recovering phenol and xanthene values from waste polycarbonate |
12/31/1996 | US5589598 Process of purification of 2,6-diisopropylphenol |
12/31/1996 | US5589517 N,n-di-substitituted mercaptoalkylamine sulfonic acid ion exchange resin as catalyst for condensation reaction of a phenol and a ketone to produce a bisphenol |
12/18/1996 | EP0702596B1 Catalytic materials comprising layered clay macrospheres |
12/18/1996 | CN1138023A Process for preparation of aromatic compounds by decarboxylation of aromatic carboxylic acids |
12/17/1996 | US5585526 Preparation of P-fuchsones and synthesis of P-Dihydroxylated aromatic compounds therefrom |
12/11/1996 | CN1137788A Process for making polyphenols from ketones or aldehydes and phenols |
12/10/1996 | US5583268 Method to prepare ortho substituted phenol |
12/05/1996 | WO1996038400A1 Method for preparing a meta-dihydroxylated aromatic compound |
12/04/1996 | EP0745575A1 Method of synthesizing polyphenol compound and positive working photoresist composition comprising polyphenol compound |
12/04/1996 | CN1137033A Co-cracking of BPA and phenol process tars |
11/26/1996 | US5578744 Catalytically active gel and a process for its preparation |
11/26/1996 | US5578737 Chlorination process, alkylation of products of said process and some products thereof |
11/20/1996 | EP0679151A4 Method of making 1,1-bis-(4-hydroxyphenyl)-3,3,5-trimethylcyclohexane. |
11/13/1996 | EP0742194A1 Process for the preparation of substituted phenols |
11/06/1996 | EP0741122A1 Process for preparing aromatic compounds through decarboxylation of aromatic carboxylic acids |
11/06/1996 | EP0740954A1 Process for the production of finely granulated solid chemicals |
11/06/1996 | EP0642487B1 Acetophenone removed from phenol purification residues |
11/03/1996 | CA2175535A1 Process for the preparation of aromatic compounds by decarboxylation of aromatic carboxylic acids |
10/31/1996 | WO1996033964A1 A process for the preparation of tetrabromobisphenol-a |
10/30/1996 | CN1134313A Compound oxide catalyst for synthesizing benzene diphenol by phenol-hydrogen peroxide hydroxylation |
10/29/1996 | US5569791 Production of phenol from a hydrocarbon feedstock |
10/23/1996 | EP0738702A1 Method for recovering phenol and xanthene values from waste polycarbonate |
10/23/1996 | EP0738698A2 Process for decomposition of cumene hydroperoxide |
10/23/1996 | EP0638057A4 Recovering values from heavy ends in bisphenol-a production. |
10/23/1996 | EP0519084B1 Process for producing simultaneously an aromatic hydroxy compound and a carbonyl compound |
10/23/1996 | CN1033084C Process for preparing substd. vinylbenzene |
10/22/1996 | US5567829 Method for recovering phenol and xanthene values from waste polycarbonate |
10/16/1996 | CN1133204A Regeneration method for lost activity sulfourylation group organic polymer ion exchange resin bed |
10/15/1996 | US5565689 Reactant for perfluoroalkylation of nucleophilic substrates with sodium perfluoroalkanesulphinates in an oxidizing medium |
10/09/1996 | EP0735999A1 A method of cleaving arylethers |
10/02/1996 | CN1132196A Bisphenol ester derivatives |
10/02/1996 | CN1132193A Removal and neutralization of acid catalyst from products of cumene hydroperoxide cleavage |
10/01/1996 | US5561095 Inorganic oxide support having immobilized on it a strong lewis acid and at least one weak lewis acid; cationic polymerization; alkylation; isomerization and cracking; reuse; durability |
09/24/1996 | US5559274 Production of phenol from a hydrocarbon feedstock |
09/24/1996 | CA2145317A1 Method for purification of phenol |
09/19/1996 | DE19509299A1 Heat stabilisation of phenolic bisphenol=A solns. |
09/17/1996 | CA2054578C Process for debrominating dibrominated naphtalene derivatives |
09/12/1996 | WO1996027576A1 A process for the preparation of tetrabromobisphenol-a |
09/12/1996 | DE19509821C1 Removing phenol(s) and other organic cpds. from waste water, esp. in prodn. of olefin(s) |
09/11/1996 | EP0731074A2 Tetraphenol compounds, process for producing the same and their use as photosensitisers |
09/11/1996 | EP0731073A2 Co-cracking of BPA and phenol process tabs |
09/11/1996 | CN1130618A Process for preparing high-purity p-cresol with crude p-cresol |
09/04/1996 | EP0729447A1 Method of making 1,1-bis-(4-hydroxyphenyl)-3,3,5-trimethylcyclohexane |
09/03/1996 | US5552508 Difunctional bitricyclodecatriene monomers |
08/28/1996 | EP0728723A2 Process for the production of fluorenebisphenol |
08/28/1996 | CN1129607A Preparation of non-aluminum Ti(Zr, V)-Si five-membered ring zeolite catalyst |
08/23/1996 | EP0683761A4 A novel process for the production of high purity and ultrapure bisphenol-a. |
08/22/1996 | WO1996025390A1 PRODUCTION OF ENANTIOMERICALLY ENRICHED ORTHO-SUBSTITUTED α,α-DIAROMATIC METHANOLS |
08/21/1996 | CN1129208A Method of separating meta and para-ethylphenol |
08/21/1996 | CN1129207A Process for production of 2,6-dichlorophenol by using O-chlorophenol |
08/14/1996 | EP0725771A1 Process for making polyphenols from ketones or aldehydes and phenols |
08/14/1996 | CN1128754A Method for treatment of mixture of hydroperoxide |
08/13/1996 | US5545764 Process for the continuous production of high purity bisphenol A |
08/13/1996 | CA2037109C Process for preparing bisphenol-a |
08/07/1996 | EP0725049A1 Process for preparing aromatic olefins by palladacycle catalysis |
08/06/1996 | US5543564 Process for releasing acidic organic compounds from salts thereof by carbon dioxide |
08/06/1996 | US5543298 Method for assaying the sod activity by using a self-oxidizable compound necessary for its implementation, self-oxidizable compounds and preparation thereof |
07/30/1996 | US5541282 Polyethers |
07/24/1996 | CN1127241A Separating epuration p-cresol technology by complexing extraction crystallization method |
07/23/1996 | US5538599 From 1-phenyl ethanol, extractive distillation with purified sulfolane |
07/17/1996 | EP0625209B1 Method for assaying the sod activity by using a self- oxidizable compound necessary for its implementation, self- oxidizable compounds and preparation thereof |
07/17/1996 | CN1126717A Catalyst series for synthesizing 1-,2- and 3- substituted alkylphenols with different proportion by one-step process |
07/11/1996 | WO1996020911A1 Process to produce tetrabromobisphenol with the reduced formation of alkyl bromide by-products |
07/10/1996 | EP0720976A1 Process for preparing an adduct of a bisphenol with a phenolic compound |
07/03/1996 | EP0571447B1 Catalytic hydroxylation of phenol |
06/27/1996 | WO1996019429A1 Process for preparing 4-hydroxystyrene |
06/26/1996 | EP0718268A2 Process for the production of crystalline adduct of bisphenol A and phenol |
06/26/1996 | EP0718267A2 Process for the production of crystalline adduct of bisphenol A and phenol and apparatus therefor |
06/26/1996 | CN1125250A Phenol tar waste reduction process |
06/25/1996 | US5530166 Cleaving cumyl hydroperoxide to dicumyl peroxide, cleaving dicumyl peroxide |
06/25/1996 | US5530030 Nematicides against pine wood nematodes |
06/19/1996 | EP0717024A1 Process for the recovery of phenol from an aqueous stream containing Na2So4 |
06/19/1996 | EP0716645A1 Propofol purification |
06/19/1996 | CN1124922A Use of natural products and related synthetic compounds for the treatment of cardiovascular disease |
06/18/1996 | US5527971 Process for the preparation of tetrabromobisphenol-A |
06/18/1996 | US5527945 Diphenylheteroalkyl derivatives, the preparation thereof and drugs and cosmetics prepared therefrom |
06/12/1996 | EP0716076A2 Bisphenolester derivatives |
06/12/1996 | EP0716068A2 Removal and neutralization of acid catalyst from products of cumene hydroperoxide cleavage |
06/12/1996 | CN1031989C Process and catalyst composition of alkylating benzene or substituted benzene or transalkylating alkylated benzene |