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| Number | Title | Issue Date |
| 7935852 | Fluoridation method A method for the fluoridation of an iodonium salt with a fluoride ion source which can be carried out in an aqueous reaction solvent. ... | 05/03/2011 |
| 7928268 | Process for producing 1,2-dialkoxy-3-fluorobenzene The present invention relates to a process for producing a 2-fluoro-6-halophenol as an intermediate; a process for producing a 2-alkoxy-3-fluorophenol and further a 1,2-dialkoxy-3-fluorobenzene from the 2-fluoro-6-halophenol; a second process for producing a 1,2-dia... | 04/19/2011 |
| 7358402 | Reduced coenzyme Q10 crystal with excellent stability and composition containing said reduced coenzyme Q10 crystal The present invention provides a reduced coenzyme Q10 crystal with excellent stability and a composition containing said reduced coenzyme Q10 crystals. According to the present invention, after dissolving reduced coenzyme Q10 ... | 04/15/2008 |
| 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 |
| 7208639 | Method of producing reduced coenzyme Qas oily product The present invention provides a method for obtaining reduced coenzyme Q10 which is useful as an ingredient in foods, functional nutritive foods, specific health foods, nutritional supplements, nutrients, drinks, feeds, cosmetics, medicines, remedies, pre... | 04/24/2007 |
| 6989467 | Microwave induced process for the preparation of substituted 4-vinylphenols The present invention relates to “a microwave induced process for the preparation of 4-vinylphenols or its derivatives” in which commercially important FEMA GRAS approved perfumery and flavouring vinylphenols (i.e. hydroxystyrenes) namely 4-vinylguaiacol (FEMA G... | 01/24/2006 |
| 6881868 | Process for the preparation of (R)-2-alkyl-3-phenyl-1-propanols Compounds of formula (I), wherein R1 and R2 are, independently of one another, H,C1-C6alkyl, C1-C6halogenalkyl, C1-C6alkoxyl, C1-C6alkoxy-C1-C | 04/19/2005 |
| 6852895 | Practical, cost-effective synthesis of CoQ10 The present invention provides a convergent method for the synthesis of ubiquinones and ubiquinone analogues. Also provided are precursors of ubiquinones and their analogues that are useful in the methods of the invention. ... | 02/08/2005 |
| 6828466 | Process for the synthesis of phenols from arenes A process to synthesize substituted phenols such as those of the general formula RR′R″Ar(OH) wherein R, R′, and R″ are each independently hydrogen or any group which does not interfere in the process for synthesizing the substituted phenol including, but not... | 12/07/2004 |
| 6541673 | Process for oxyalkylating phenolic compounds Phenolic polyether polyols are prepared by a two stage oxyalkylation process, a first stage performed at a high oxyalkylation temperature and a second stage at a lower oxyalkylation temperature. Despite the use of high temperature during oxyalkylation, po... | 04/01/2003 |
| 6512147 | Apparatus and process for generating mixed multi-component vapor A mixed liquid of two or more components different in boiling temperature from each other and soluble in or compatible with each other is evaporated into a mixed vapor having a similar composition to that of the mixed liquid by using an apparatus having a... | 01/28/2003 |
| 6274635 | Alkylated resorcinol derivatives for the treatment of immune diseases The present invention provides a method, compounds, and compositions for treating a disease associated with immune dysfunction. In accordance with the method, a pharmacologically-acceptable composition including at least one compound selected from the gro... | 08/14/2001 |
| 6271423 | Preparation of butenyl ethers A process for preparing butenyl ethers of the formula I CH3 --CH.dbd.CH--CH2 --OR I by reacting butadiene or butadiene-containing hydrocarbon streams with alcohols of the formula II ROH II at elevated temperature and superatmospheric pressur... | 08/07/2001 |
| 6013841 | Method for the conversion of 3- and 4-methylcatechol to benzaldehyde The 3- and 4-methylcatechols are converted to the corresponding benzaldehyde by first alkylating the hydroxyl groups to form an alkylated methylcatechol. The methyl group is then converted to a methyl dibromide group using 1,3-dibromo-5,5-dimethylhydantoi... | 01/11/2000 |
| 5977416 | Dehydration catalyst and process for producing a monoalkylether of a dihydric phenolic compound using same A dehydration catalyst useful for producing a monoalkylether of dihydric phenolic compound by a dehydration reaction of a dihydric phenolic compound with a lower alkyl alcohol with a high conversion at a high selectivity, comprises at least one inorganic ... | 11/02/1999 |
| 5936102 | Process for the preparation of 2,2,3,3-tetrafluoro-1,4-benzodioxanes, novel o-(2-bromo-1,1,2,2-tetrafluoroethoxy)-phenols, and novel 2-bromo-1,1,2,2-tetrafluoroethoxy-containing phenyl ethers The present invention is drawn to a process for preparing a 2,2,3,3-tetrafluoro-1,4-benzodioxane, by cyclocondensing a o-(2-bromo-tetrafluoroethoxy)-phenol in the presence of an acid binder.... | 08/10/1999 |
| 5840997 | Method for the production of alkoxy- and aryloxy-phenols Alkoxybenzaldehydes and aryloxybenzaldehydes are converted to the corresponding phenols by reacting the benzaldehydes in an organic solvent phase with formic acid and hydrogen peroxide in an aqueous solvent phase to produce the corresponding formate ester... | 11/24/1998 |
| 5536882 | Preparation of polyether glycols and alcohols by the polymerization 3,4-epoxy-1-butene Disclosed are novel polyether compounds obtained by the reaction or polymerization of 3,4-epoxy-1-butene in the presence of an acidic catalyst and a nucleophilic initiator compound. The polyether compounds comprise n units of residue (1) and m units of re... | 07/16/1996 |
| 5508461 | Optically active 1-phenyl-2-substituted propane derivatives and methods of producing the same An (S)-1-phenyl-2-substituted propane derivative shown by the following formula (I) ##STR1## wherein R1 and R2 represent a lower alkyl group, etc., or R1 and R2 may form together an alkylene group, etc.; R | 04/16/1996 |
| 5446186 | Structure and synthesis of nitrophenyl-EGTA, a caged calcium, intermediates thereof and a method of producing a high photochemical yield of liberated calcium The synthesis and compound of a new caged calcium which is an ortho-nitrophenyl derivative of EGTA and various intermediates. It is synthesized in ten steps and 24% overall yield. The photosensitive chelator, nitrophenyl-EGTA, has a Kd for Ca | 08/29/1995 |
| 5434314 | Polyether glycols and alcohols derived from 3,4-epoxy-1-butene Disclosed are novel polyether compounds obtained by the reaction or polymerization of 3,4-epoxy-1-butene in the presence of an acidic catalyst and a nucleophilic initiator compound. The polyether compounds comprise n units of residue (1) and m units of re... | 07/18/1995 |
| 5416242 | Hydroquinone derivative Novel hydroquinone derivatives of the formulae (I) and (II), ##STR1## wherein R1 is an alkyl group having 7 to 11 carbon atoms, ##STR2## wherein each of R2 to R5 is independently a hydrogen atom, a lower alkyl gr... | 05/16/1995 |
| 5393776 | Tocotrienol analogs in the treatment of hypercholesterolemia and hyperlipidemia This invention relates to structurally novel acyclic tocotrienol analogs, which are useful for cholesterol/lipid lowering in cases of hypercholesterolemia and hyperlipidemia, and for atherosclerosis. Also provided are pharmaceutical compositions and a met... | 02/28/1995 |
| 5262552 | Optically active compounds and intermediates thereof, and process for manufacturing same An optically active (S)- or (R)-pentane compound of the general formula (11): ##STR1## wherein R11, R12 and R13 independently represent a hydrogen atom or a lower alkyl group having 1 to 4 carbon atoms, R14... | 11/16/1993 |
| 5248835 | Method of producing a monoalkylether of a dihydric phenol compound A monoalkylether of a dihydric phenol compound is produced at a high conversion and selectivity by catalytically dehydration reacting a dihydric phenol compound with a lower monohydric alcohol in the presence of a catalyst comprising at least one inorgani... | 09/28/1993 |
| 5206396 | Telomerization of 1,3-butadiene Octyl ethers and octadienyl ethers of glucose, sucrose, bisphenol A, 4-substituted-2,2,6,6-tetramethylpiperidines are disclosed. Compositions comprised of a mixture of octyl ethers of glucose and sucrose and those containing octadienyl ethers of sugar aci... | 04/27/1993 |
| 5198571 | Monofunctionalization of phenolic hydroxy onto a polyphenol A region-specific monofunctionalization of a phenolic hydroxy onto a polyphenol for the preparation of a compound of the formula ##STR1## wherein R is selected from the group consisting of hydrogen, alkyl of 1 to 8 carbon atoms, alkenyl and alkynyl o... | 03/30/1993 |
| 5149888 | Hydroxylation of phenols/phenol ethers The phenols and phenol ethers, e.g., phenol itself, are effectively hydroxylated by reacting hydrogen peroxide therewith, in the presence of a catalytically effective amount of titanium dioxide.... | 09/22/1992 |
| 5146010 | Pyrolysis of naturally occurring cresylic acid mixtures A process for removing guaiacols from naturally-occurring cresylic acid mixtures by pyrolysis is described.... | 09/08/1992 |
| 5097078 | Catalytic hydroxylation of phenols/phenol ethers The phenols and phenol ethers are hydroxylated by reacting such phenols/phenol ethers with hydrogen peroxide, in the presence of (a) a catalytically effective amount of an alkali metal or alkaline earth metal salt of at least one protonic acid having a pK... | 03/17/1992 |
| 5082978 | Selective monomethylation of phenolic compounds Mono-, di- and triphenols are selectively monomethylated by reaction with para-dimethoxybenzene in the presence of a catalytically effective amount of an acid catalyst.... | 01/21/1992 |
| 5043494 | Preparation of methylhydroquinone Methylhydroquinone (MeHQ) or methyl ether derivative thereof is prepared by contacting paramethoxyphenol or para-dimethoxybenzene with an acid catalyst, preferably a solid acid catalyst, at a temperature ranging from 100° to 300° C.... | 08/27/1991 |
| 4954659 | 1,4-bis (dihydroxyphenyl) butane and analogs A grignard synthesis of pharmacologically active 1,4-bis(dihydroxyphenyl)butane and analogs, as well as novel intermediates, is provided, comprising preparing a grignard reagent preferably, a 3,4-dialkoxyphenyl propyl magnesium bromide, which may be ... | 09/04/1990 |
| 4946865 | Dipropargyloxybenzene compounds and their production A compound of the formula: ##STR1## wherein X is a hydrogen atom, a halogen atom, a C1 -C3 alkyl group or a C1 -C3 alkoxy group and Y is a hydrogen atom, a halogen atom, a cyano group, a formyl group, an et... | 08/07/1990 |
| 4897420 | Benzoquinone derivatives, their production and use Compounds of the formula: ##STR1## wherein l is an integer of 0 to 18, X is hydrogen, an alkyl having 1 to 4 carbon atoms or a carboxylic acyl having 2 to 4 carbon atoms and Y is a phenylene, a cycloalkylene having 3 to 7 carbon atoms or a group of t... | 01/30/1990 |
| 4885403 | Process for making propargyl ethers of bisphenols A process for preparing an aromatic propargyl ether, preferably bispropargyl ether, from phenolic compounds comprising vigorously stirring a propargyl halide, preferably propargyl chloride, with a phenolic compound, such as bisphenol A, in an aqueous sodi... | 12/05/1989 |
| 4825011 | Method of preparing substituted dihydroxy-benzenes The nuclear hydroxylation of substituted phenols is performed by using aqueous hydrogen peroxide in the presence of sulfur dioxide or selenium dioxide as catalyst in a simple manner with very good space-time yields and good product yields.... | 04/25/1989 |
| 4610996 | Fungicidal phenoxytriazolyl ketones and carbinols Phenoxytriazolyl ketones and carbinols of the formula ##STR1## in which A represents the keto group or the CH(OH) grouping and R represents hydrogen, alkenyl, alkinyl, halogenoalkyl, halogenoalkenyl, alkylcarbonyl, optionally substituted benzyl or optiona... | 09/09/1986 |
| 4588835 | Process for preparing alkoxyphenols A process for preparing an alkoxyphenol represented by the formula: ##STR1## wherein R is hydrogen, alkyl having 1 to 4 carbon atoms, formyl, hydroxymethyl, alkoxymethyl, dialkoxymethyl, acetoxymethyl or diacetoxymethyl, R' is alkyl having 1 to 4 car... | 05/13/1986 |
| 4582919 | Process for the manufacture of optically active compounds There is described a novel process for producing hydroquinone derivatives of the formula ##STR1## wherein R is an ether protecting group, and their conversion into d--tocopherol, starting from compounds of the formula ##STR2## wherei... | 04/15/1986 |
