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| Number | Title | Issue Date |
| 7745670 | Curcumin-Resveratrol hybrid molecule Novel molecules based upon hybridization of curcumin and hydroxystilbenes, such as resveratrol. It is believed that these novel molecules will have special application in treating Alzheimer's Disease. ... | 06/29/2010 |
| 7414160 | Process for producing aromatic compounds A process produces an aromatic compound by bringing an aromatic compound (B) into contact with molecular oxygen (C) in the presence of a catalyst (A) comprising at least one of (A1) a heteropolyacid and/or a salt thereof, and (A2) a mixture of oxoacids and/or salts ... | 08/19/2008 |
| 7321050 | Anti-inflammatory and psoriasis treatment and protein kinase inhibition by hydroxy stilbenes and novel stilbene derivatives and analogues The present invention provides novel diphenyl ethene compounds and pharmaceutically-acceptable salts thereof. Also provided are methods for making the compounds of the invention as well as methods for the use thereof in the treatment of immune, inflammatory, and aut... | 01/22/2008 |
| 7312368 | Method for selective reduction of aromatic compounds A method for the selective reduction of an aromatic compound. The present invention provides a method for pre-venting the reduction of at least one halogen substituted aromatic ring of an aromatic compound, while allowing the reduction of at least one functional gro... | 12/25/2007 |
| 7230141 | Method for producing toluol derivatives A process for preparing toluene derivatives of the formula I, where R1, R2 and R3 independently of one another are hydrogen, halogen, C1–C6-alkyl, hydroxyl... | 06/12/2007 |
| 7161000 | Method for producing phenol condensate Provided is a method for producing a phenol condensate by oxidative condensation of a phenol compound not having a substituted group on at least one ortho-position, in the presence of a specific complex (II) and oxygen, wherein a condensate coupled at para-position ... | 01/09/2007 |
| 7126031 | Bridged bi-aromatic ligands, catalysts, processes for polymerizing and polymers therefrom New ligands and compositions with bridged bis-aromatic ligands are disclosed that catalyze the polymerization of monomers into polymers. These catalysts with metal centers have high performance characteristics, including higher comonomer incorporation into ethylene/... | 10/24/2006 |
| 7125951 | Monomers containing at least one biaryl unit and polymers and derivatives prepared therefrom The invention relates to bisphenol monomers containing one or more biaryl units and related polymers, derivatives and resins thereof and more particularly to Bisphenol monomers containing two biaryl units separated by a spacer group X, and to bisphenol monomers cont... | 10/24/2006 |
| 7087799 | Amino group containing phenol derivative An object of the present invention is to provide a material which resolves the drawbacks associated with polyimide polymers, and yet retains the advantages offered by conventional polyimide polymers. An amino group containing phenol derivative of the present ... | 08/08/2006 |
| 7045664 | Process for producing bisphenol A In a process for producing bisphenol A, an adduct of bisphenol A with phenol is promptly recovered in highly purity and high efficiency from a reaction mother liquor in the case of singling out bisphenol A from a reaction product. An adduct layer of bisphenol A with... | 05/16/2006 |
| 7041856 | Coupling catalyst and process using the same There are disclosed a process for producing a coupling compound of formula (1): (Y—)(n−1)R1—R2—(R1)(n′−1), (1) wherein R1 and R2 | 05/09/2006 |
| 7019179 | Process for producing aromatic compounds A process produces an aromatic compound by bringing an aromatic compound (B) into contact with molecular oxygen (C) in the presence of a catalyst (A) comprising at least one of (A1) a heteropolyacid and/or a salt thereof, and (A2) a mixture of oxoacids and/or salts ... | 03/28/2006 |
| 6960665 | Process for arylating or vinylating or alkynating a nucleophilic compound The present invention concerns a process for arylating or vinylating or alkynating a nucleophilic compound. More particularly, the invention concerns arylating nitrogent-containing organic derivatives. The arylating or vinylating or alkynating process of the inventi... | 11/01/2005 |
| 6960641 | Method of making block copolymers by solid state polymerization A method of preparing block copolymers by solid state polymerization is described. A mixture of a partially crystalline polycarbonate having activated terminal aryloxy groups, for example terminal methyl salicyl groups, when heated together with an oligomeric polyes... | 11/01/2005 |
| 6784228 | Epoxy resin composition, cured article thereof, novel epoxy resin, novel phenol compound, and process for preparing the same The present invention relates to an epoxy resin composition a cure article thereof, a novel epoxy resin used therein, a polyhydric phenol compound suited for used as an intermediate thereof, and a process for preparing the same. One of the objects to be achieved by ... | 08/31/2004 |
| 6620978 | Positive photoresist composition and process for synthesizing polyphenol compound The present invention provides a positive photoresist composition including (A) an alkali-soluble resin and (B) a photosensitizer, and the ingredient (B) is a quinonediazide ester of, for example, 2,6-bis[4-hydroxy-3-(2-hydroxy-3,5-dimethylbenzyl)-2,5-dim... | 09/16/2003 |
| 6600004 | Method of preparing polyestercarbonates A method of preparing polyestercarbonates is presented in which a mixture of at least one activated diaryl carbonate is reacted under melt polymerization conditions with at least one aromatic dihydroxy compound together with at least one dicarboxylic acid... | 07/29/2003 |
| 6414106 | Process for the neutralization of residual acid species in crude dihydric phenols The present invention relates to a method of neutralizing residual acid species in crude dihydric phenol comprising the step of introducing a thermally stable organic base selected from the group consisting of tetraalkyl phosphonium hydroxides, tetraorgan... | 07/02/2002 |
| 6399740 | Process for reducing mono-functional and non-functional by-products during aralkylation of phenolics Phenol aralkyistion polymers can be prepared by reaction among a phenolic monomer, at least one styrenic monomer and an aryl diolefin. A phenolic monomer can be initially aralkylated in the presence of an acid catalyst with a first portion of at least one... | 06/04/2002 |
| 6384288 | Method for the production of bis(4-hydroxyaryl)alkanes A process for producing bis(4-hydroxyaryl)alkane is disclosed. The process comprise in sequence the steps of (a) passing inert gas through a melt at 150 to 230° C. that contains bis(4-hydroxyaryl)alkane and other aromatic hydroxy compounds, under conditi... | 05/07/2002 |
| 6271337 | Process for the preparation of calixarenes and new calixarene compounds A new two-step process for the preparation and industrial manufacture of calixarenes is disclosed. In the first step, linear phenolic oligomers are prepared in a basic medium from an optionally substituted phenol and a formaldehyde source. The reaction mi... | 08/07/2001 |
| 6201123 | Catalyst composition, catalyst solution and process for preparing optically active epoxide A catalyst composition for organic a symmetric synthesis is provided, which comprises: (A) a lanthanoid element ion; (B) a binaphthol, and (C) a nitrogen and/or phosphorus compound such as lutidine-N-oxide, 1,3-dimethyl-2-imidazolldinone, hexamethyl-phosphortr... | 03/13/2001 |
| 5959158 | Method and system for bisphenol a production using water Methods/systems for making a relatively high-purity bisphenol A product from phenol and acetone. Controlled turbulence is used to form bisphenol A adduct solids having improved physical properties. Phenol is separated from the bisphenol A product while in... | 09/28/1999 |
| 5959157 | Process for making hydroxy-substituted ethynylated biphenyl compounds A process for making ethynylated, hydroxy-substituted biphenyl compounds comprising: a) halogenating 3,3'-dimethoxybiphenyl to form 2,2'-dihalo-5,5'-dimethoxybiphenyl; b) reacting the resulting 2,2'-dihalo-5,5'-dimethoxybiphenyl with a bromide-containing ... | 09/28/1999 |
| 5889137 | Phenolic polymers made by aralkylation reactions The present invention is directed to the formation of phenol alkylation polymers which release negligible phenol and formaldehyde emissions. The phenol aralkylation polymers of the present invention are derived from a phenolic monomer, at least one styren... | 03/30/1999 |
| 5874645 | Process for the preparation and purification of 4,4'-dihydroxy-alpha-substituted stilbene A process which includes the step of heating a compound of Formula (I): ##STR1## wherein R1 is a hydroxyphenyl group or a group of Formula (II): ##STR2## and R2, R3, R4, R5 and R6 are ... | 02/23/1999 |
| 5773552 | Phenolic polymers made by aralkylation reactions The present invention is directed to the formation of phenol alkylation polymers which release negligible phenol and formaldehyde emissions. The phenol aralkylation polymers of the present invention are derived from a phenolic monomer, at least one styren... | 06/30/1998 |
| 5756642 | Phenolic polymers made by aralkylation reactions The present invention is directed to the formation of phenol alkylation polymers which release negligible phenol and formaldehyde emissions. The phenol aralkylation polymers of the present invention are derived from a phenolic monomer, at least one styren... | 05/26/1998 |
| 5739259 | Phenolic polymers made by aralkylation reactions The present invention is directed to the formation of phenol alkylation polymers which release negligible phenol and formaldehyde emissions. The phenol aralkylation polymers of the present invention are derived from a phenolic monomer, at least one styren... | 04/14/1998 |
| 5723688 | Process for preparing an adduct of a bisphenol with phenolic compound A process for preparing an adduct of a bisphenol with a phenolic compound comprising the following steps: a) reacting a carbonyl compound with a stoichiometric excess of a phenolic compound in the presence of an acidic cation exchange resin as a catalyst, ... | 03/03/1998 |
| 5674970 | Phenolic polymers made by aralkylation reactions The present invention is directed to the formation of phenol alkylation polymers which release negligible phenol and formaldehyde emissions. The phenol aralkylation polymers of the present invention are derived from a phenolic monomer, at least one styren... | 10/07/1997 |
| 5612479 | Polyphenols containing mesogenic moieties as lateral substituents Novel polycyanate compositions containing one or more mesogenic moieties as lateral substituents are disclosed which provide improved processability relative to polycyanates containing one or more mesogenic moieties in the main chain of the molecule. Mole... | 03/18/1997 |
| 5583267 | Biocatalytic process for preparing tetraalkylbiphenols In accordance with the present invention, tetraalkylbisphenols are prepared by biocatalytic dimerization of di-(lower alkyl)-substituted phenols in the presence of peroxidase enzyme and peroxide. Three reaction pathways to the desired diols are provided.... | 12/10/1996 |
| 5475155 | Preparation of 4,4'-dihydroxy-alpha'-dialkylstilbenes and 4, 4'-dihydroxy-alpha'-dialkylstilbenes 4,4'-Dihydroxy-alpha-alkylstilbenes of high purity are prepared by reacting at a temperature of from about -20° C. to about 20° C. a mixture of (1) at least one alpha-haloketone, (2) at least one phenolic hydroxyl-containing compound or alkoxy-containin... | 12/12/1995 |
| 5463140 | Process for making polyphenols from ketones or aldehydes and phenols A process for the condensation of an aldehyde or ketone starting material with a phenol, unsubstituted in the 4-position, comprises reacting the aldehyde or ketone starting material with the phenol in a reaction mixture in the presence of a soluble or ins... | 10/31/1995 |
| 5420361 | Formulation of and dehydration of hydroxylated diphenyl acetylenes The production of cis-dihydrodiol compounds of the formula ##STR1## where n is 0 or 1 (preferably 0) by the microbial oxidation of a diphenylaceylene compound of the formula ##STR2## using a mutant of a Pseudomonas bacteria at 25° to 35° C. ... | 05/30/1995 |
| 5420363 | Optically active phenol derivatives and preparation thereof An optically active tri-substituted methane compound having, as substituents, an aromatic ring group and a phenyl group having hydroxyl group at ortho or para position can be obtained by allowing a phenol compound unsubstituted at the ortho- or/and para-p... | 05/30/1995 |
| 5414150 | Preparation of 4,4'-dihydroxy-alpha-alkylstilbenes and 4,4'-dihydroxy-alpha, alpha'-dialkylstilbenes 4,4'-Dihydroxy-alpha-alkylstilbenes of high purity are prepared by reacting at a temperature of from about -20° C. to about 20° C. a mixture of (1) at least one alpha-haloketone, (2) at least one phenolic hydroxyl-containing compound or alkoxy-containin... | 05/09/1995 |
| 5395985 | Compound and separating agent A compound represented by the general formula (I) and a separating agent comprising the same: ##STR1## wherein Ar and Ar' are each an aromatic group; and the positional relationship of the two substituents on the central benzene ring may be any ... | 03/07/1995 |
| 5364977 | Clathrate compounds comprising tetrakisphenols as host The present invention provides novel clathrate compounds using tetrakisphenols as host. The clathrate compounds are obtained easily and efficiently by reacting tetrakisphenols represented by the general formula [I] as host and various organic compounds su... | 11/15/1994 |
