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Matches 901 - 950 out of 7,062

Document Document Title
WO/2006/039088A1
Methods for purifying a p,p-bisphenol A generally include distilling a feed stream comprising p,p-BPA in a distillation column at a pressure less than or equal to 20 millibars. The distillation column separates the bisphenol feed stream ...  
WO/2006/036244A1
Bisphenol-A (BPA) is efficiently produced from phenol and acetone via countercurrent and multistage contact with a solid acid catalyst in the presence of an agent that enhances the removal of water of reaction from the reaction zone. A p...  
WO/2006/022251A1
Disclosed is a phenol resin whose cured product exhibits high heat resistance even though the phenol resin uses trialkylphenol as the raw material phenol. Also disclosed is an epoxy resin composition containing an epoxy resin which uses ...  
WO/2006/023119A1
Phenol is formed by reaction of oxidant and benzene over a solid catalyst such as Pd on TS-1, the reaction being carried out in carbon dioxide solvent at conditions effective to provide a dense phase reaction mixture.  
WO/2006/022818A1
A method is provided for the efficient, low cost removal of acetol from a phenol stream. The method results in removal of substantially all of the acetol from the phenol stream without the formation of substantial amounts of additional m...  
WO/2006/019663A1
The present invention relates to a method for the chemical separation of the enantiomers of 1,1'-spirobiindane-6,6'-diol derivatives comprising providing a racemic chiral 1,1'-spirobiindane-6,6'-diol derivative, reacting a nonracemic chi...  
WO/2006/015825A1
A process for producing bisphenol-A and co-producing methyl ethyl ketone comprises alkylating benzene with a C3 alkylating agent in a first reaction zone to produce cumene and alkylating benzene with a C4 alkylating agent in a second rea...  
WO/2006/015826A1
A process for producing phenol and methyl ethyl ketone comprises contacting benzene with a C4 alkylating agent under aklylation conditions with catalyst comprising zeolite beta or a molecular sieve having an X-ray diffraction pattern inc...  
WO/2006/015036A2
A process for the preparation of hydroquinone compounds comprising, reacting an aromatic hydroxy compound with an oxidizing agent in a biphasic solvent system. The reaction is carried out in the presence of a transition metal hydroxy pho...  
WO/2006/012312A1
A method for preparing 1,1,1,-tris(4-hydroxyphenyl)alkanes generally comprises reacting a mixture of an aromatic hydroxy compound and a ketone in the presence of at least one sulfonic acid catalyst and a mercaptan co-catalyst to produce ...  
WO/2006/008230A1
In the method of the invention, the process to obtain bisphenol A from phenol and acetone in the presence of a cation exchanger which is preferably promoted with organic sulphur compounds, is carried out in two steps, while the reaction ...  
WO/2006/002788A1
The invention relates to a method for the continuous separation of phenol from a sub-stream obtained during the production of bisphenol A, containing 40 to 90 wt. % phenol, 5 to 40 wt. % bisphenol A, in addition to 5 to 40 wt. % minor co...  
WO/2006/003803A1
Disclosed is a modified ion exchange resin catalyst which exhibits higher bisphenol selectivity than the conventional modified ion exchange resins in processes wherein bisphenols are produced by reacting phenols with ketones. Also disclo...  
WO/2005/122670A2
The present report is about a "biomonitored synthesis route for large scale preparation of cardol (bilobol) and 11Δ-cardol" in 15 steps. The 10 first steps are related to the production of Cardol, starting from 3,5-dimethoxy benzoic aci...  
WO/2005/110952A1
A method for the manufacture of polycarbonate by combining methane (10) and inlet water (16) to produce methanol (12), converting the methanol (12) to propylene (18), gasoline aromatics (28), and gasoline olefins (26), converting the pro...  
WO/2005/108337A2
Disclosed herein are novel di-phenyl compounds and methods for using various di-phenyl compounds for treatment and prevention of diseases and disorders related to estrogen receptors.  
WO/2005/105746A1
An organic EL element which has an organic thin film layer between a positive electrode and a negative electrode, wherein said organic thin film layer comprises an organometallic complex having a metal, a tridentate ligand coordinating t...  
WO/2005/105772A1
The invention relates to compounds of formula (I) in which Y, X1, X2, X3, R1, R2, A1, A2, Z1, Z2, m and n are defined as in Claim 1, to their use as constituents in liquid crystalline media, and to electro-optical display elements that c...  
WO/2005/102936A1
The invention relates to a method for purifying phenolic waste water flows by extraction with a mixture comprising methylisobutylketone and anisole and optionally mesitylene.  
WO/2005/102974A1
A method is provided for the efficient, low cost removal of acetol from a phenol stream. The method results in removal of substantially all of the acetol from the phenol stream without the formation of substantial amounts of additional m...  
WO/2005/102520A1
A catalyst for bisphenol production which can be prepared by a simple procedure using a sulfurized amine compound which is contained in a wastewater discharged from a bisphenol production process and should be removed from the wastewater...  
WO/2005/097725A1
Calixresorcinarene compounds represented by the general formula (1): [wherein R is 2-methyl-2-adamantyloxycarbonylmethyl or the like]. The compounds are useful as photoresist base material, particularly for nanofabrication with extreme u...  
WO/2005/097720A1
A process for producing phenol, the process comprising contacting with an acid­catalyst a feed stream comprising cumene hydroperoxide, phenol and acetone, to produce a phenol product, wherein the molar ratio of phenol to acetone in the ...  
WO/2005/097719A1
A method is provided for the thermal decarboxylation of a phenolic substrate in the presence of a non-amine basic catalyst to produce a vinyl monomer. The product of the decarboxylation reaction may additionally be acetylated in the pres...  
WO/2005/097721A1
A continuous process comprising: contacting a mixture comprising dihydroxy aromatic compound, water and an alkylating agent with a catalyst system in the presence of a flowing carrier gas, to form a mono alkylated dihydroxy aromatic comp...  
WO/2005/090275A1
A type crystal of 2,3,6,7,10,11-hexahydroxytriphenylene monohydrate, wherein an X-ray diffraction spectrum thereof obtained by the use of a copper radiation having &lgr = 1.5418 Å having been passed through a monochrometer has a peak at...  
WO/2005/087700A2
The present invention discloses bisphenyl compounds of the formula (1): wherein R1, R2, R3, R4, R5, R6, X, Y, W are defined herein after. These compounds are useful as pharmaceuticals.  
WO/2005/087753A1
A method of efficiently conducting dealkylation reaction, Corey-Kim oxidation reaction, and Swern oxidation reaction without emitting an irritant or offensive odor. Also provided are: a reagent for dealkylation reaction or oxidation reac...  
WO/2005/085191A1
A process for the continuous production of cumene hydroperoxide (CHP) by oxidizing cumene in a liquid phase in a reactor in the presence of an oxygen-containing gas, wherein the oxygen content of the whole gas fed into the liquid phase i...  
WO/2005/084141A2
The present invention relates to a composition for the prevention and the treatment of cardiovascular disease containing extracts of T. nucifera or abietane diterpenoid compound or terpenoid compound isolated from the same as an effectiv...  
WO/2005/082823A1
The invention aims at providing a novel molecular compound which can immobilize useful substances without limitation on the molecular size, the kinds of functional groups, and so on. A molecular compound consisting of at least three cons...  
WO/2005/077515A1
Disclosed is a method for decomposing polycarbonate using water in the supercritical or subcritical state. By this decomposition method, a dihydroxy compound as a component of the polycarbonate can be collected in high purity and high yi...  
WO/2005/075397A1
The invention relates to a method for producing bisphenol A, according to which phenol and acetone are reacted on an acid catalyst to form a reaction mixture. The water that has formed during said reaction is then eliminated by distillat...  
WO/2005/075394A2
The invention relates to a method for producing bisphenol A, in which phenol and acetone are reacted in the presence of a sulphonic acid ion-exchanger in at least one reactor to form bisphenol A. According to said method, the reactor is ...  
WO/2005/075393A1
The present invention provides a method and apparatus for in-process handling of concentrated cumene hydroperoxide ('CHP') in a process for the production of phenol and acetone by the decomposition of CHP. The method of the present inven...  
WO/2005/075398A1
A novel calixarene compound which is expected to be used as a clathrate compound and which, after incorporation of a functional group thereinto, is usable in curable compositions or photoresists or as a clathrate compound. The calixarene...  
WO/2005/075396A1
The invention relates to a method for producing bisphenol A, according to which phenol and acetone are brought up to temperatures of between 48 and 54 °C prior to the reaction.  
WO/2005/075395A1
The invention relates to a bisphenol A with a low sulphur content and to a method for producing the same.  
WO/2005/073153A1
A method for producing prills of bisphenol A wherein a molten fluid of bisphenol A is allowed to fall from a nozzle plate provided at an upper portion of a prilling tower, while allowing a cooling gas to flow upwards from a lower portion...  
WO/2005/073152A2
The invention relates to a method for producing 2-alkyl polyisobutenylphenols and their Mannich adducts, to compositions that are obtained according to said method and to the use of said compositions.  
WO/2005/070853A1
A method of deuteration in which a compound with aromatic ring and/or heterocycle having an enhanced deuteration ratio can be obtained. There is provided a method of deuterating a compound with aromatic ring and/or heterocycle, character...  
WO/2005/068403A2
A method for the selective reduction of an aromatic compound. The present invention provides a method for preventing the reduction of at least one halogen substituted aromatic ring of an aromatic compound, while allowing the reduction of...  
WO/2005/066104A1
A process for producing a purified phenol stream generally includes contacting a phenol stream containing an initial concentration of hydroxyacetone and methylbenzofuran with an acidic ion exchange resin at a temperature of 50°C to 100...  
WO/2005/066103A1
A process for forming a cycloalkylidene bisphenol comprises: reacting a cycloalkanone compound of formula: (I) where [A] is a substituted or an unsubstituted aromatic group, R1- R4 independently represent a hydrogen or a C1 -C12 hydrocar...  
WO/2005/063669A1
A process for the preparation of benzoquinones and hydroquinones includes oxidizing an aromatic hydroxy compound with oxygen or an oxygen containing gas, a copper containing catalyst, and optionally a promoter to form the benzoquinone. A...  
WO/2005/063663A1
The invention relates to a method for hydrodehalogenating halogenated meta-cresols of formula (I), wherein the radicals R1 to R4 have the meaning indicated in the description. Said method is characterized in that halogenated meta-cresols...  
WO/2005/063664A1
The present invention relates to a process for the conversion of phenol to hydroquinone and quinones. More particularly this invention relates to a process for the oxidation of phenol to a mixture of 1,4-benzoquinone and hydroquinone usi...  
WO/2005/054120A2
A method for making polymer-supported metal nanoparticles (3) is disclosed comprising providing a polymer support material (1), contacting the support with a metal nanoparticle or metal nanoparticle precursor (2), and contacting the supp...  
WO/2005/054223A2
The present invention relates to a novel process for the manufacture of alkenylated aro­matic compounds featuring at least one hydroxy group, their ring-closure reactions to chroman derivatives, as well as the acylation of the latter an...  
WO/2005/051876A2
The invention relates to a method for the allylation of phenols using allylic alcohols and the derivatives thereof in an aqueous medium with a value of at least 7 in the presence of metal complexes from group VIII of the periodic classif...  

Matches 901 - 950 out of 7,062