Did You Know...
...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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| Number | Title | Issue Date |
| 7834219 | 4-alkyl cyclohexanepropanal compounds and their use in perfume compositions The present invention is directed to novel 4-alkyl cyclohexanepropanal compounds and a method of improving, enhancing or modifying a fragrance formulation through the addition of an olfactory acceptable amount of the novel compounds. ... | 11/16/2010 |
| 7470821 | Aldolase-inhibiting aromatic compounds The invention relates to novel aldolase-inhibiting compounds that can be advantageously used as medicaments (in therapeutic doses), especially for treating certain cancers, due to the inhibition efficacy thereof. An inventive compound corresponds to general formula ... | 12/30/2008 |
| 7390875 | Method for binding, in solution, a peptide and a lipophilic vector and uses thereof The invention concerns a method for binding, in solution, at least a peptide composition and at least a lipophilic vector bearing an aldehyde function, the coupling comprising a step which consists in producing a hydrazone bond between the peptide compound and the l... | 06/24/2008 |
| 7270985 | Process for the preparation of aldehyde from a proteinous source for industrial applications A process is disclosed to treat the protein hydrolysate, prepared conventionally from a proteinous source, with alkali metal hydride to obtain alcohol which is subsequently oxidized to obtain aldehyde under certain specified conditions, thereby converting large prot... | 09/18/2007 |
| 7271293 | Control method for process of removing permanganate reducing compounds from methanol carbonylation process Disclosed is a method of controlling a separation process for removing permanganate reducing compounds from a process stream in the methanol carbonylation process for making acetic acid, where the method includes the steps of measuring the density of a stream contai... | 09/18/2007 |
| 7229957 | Functional substances derived from oligoolefins having functional groups at the ends This invention provides the following: an amphiphilic functional substance with lipophilicity, affinity for supercritical CO2, and if necessary hydrophilicity comprising an oligoolefin chain and a perfluoroalkyl group(s) at a single end thereof or at both... | 06/12/2007 |
| 7223803 | Polyethylene (glycol) derivatives with proximal reactive groups An activated, substantially water soluble poly(ethylene glycol) is provided having of a linear or branched poly(ethylene glycol) backbone and at least one terminus linked to the backbone through a hydrolytically stable linkage, wherein the terminus is branched and h... | 05/29/2007 |
| 7204857 | Dyeing method using a specific active methylene compound and a compound selected among a specific aldehyde, a specific ketone, a quinone and a di-imino-isoindoline or 3-amino-isoindolone derivative The present invention relates to the use, for dyeing keratin fibres, of at least one specific compound containing active methylene and of at least one compound chosen from an aldehyde, a ketone, a quinone and a diiminoisoindoline or 3-aminoisoindolone derivative, wh... | 04/17/2007 |
| 7164047 | Processes for preparation of cyclopropylethanol, cyclopropylacetonitorile and intermediates of both A process for preparation of cyclopropylethanol, which comprises subjecting a 3-cyclopropyl-2,3-epoxypropionic acid ester to solvolysis, treating the product of the solvolysis with an acid to obtain cyclopropylacetaldehyde, and reducing the obtained cyclopropylaceta... | 01/16/2007 |
| 7115387 | Process for the preparation of aldehyde from a proteinous source for industrial applications A process is disclosed to treat the protein hydrolysate, prepared conventionally from a proteinous source, with alkyl halide to obtain alcohol which is subsequently oxidized to obtain aldehyde under certain specified conditions, thereby converting large protein mole... | 10/03/2006 |
| 7078130 | Metallic mesoporous transition metal oxide molecular sieves, room temperature activation of dinitrogen and ammonia production This invention provides novel stable metallic mesoporous transition metal oxide molecular sieves and methods for their production. The sieves have high electrical conductivity and may be used as solid electrolyte devices, e.g., in fuel cells, as sorbents, e.g. for h... | 07/18/2006 |
| 7071362 | Process for producing alicyclic aldehydes In the production of an alicyclic aldehyde, a starting aromatic aldehyde is converted into an aromatic acetal for protecting the formyl group. The aromatic ring of the aromatic acetal is then hydrogenated to convert the aromatic acetal into an alicyclic acetal, whic... | 07/04/2006 |
| 7060860 | Hydroformylation process employing a cobalt-based catalyst in a non-aqueous liquid with improved catalyst recycling A process for hydroformylating olefinically unsaturated compounds by means of a cobalt-based catalyst is carried out in a non-aqueous ionic liquid which is a liquid at a temperature below 90° C. and comprises at least one ammonium and/or phosphonium and/or sulfoniu... | 06/13/2006 |
| 7030278 | Polyethylene(Glycol) derivatives with proximal reactive groups An activated, substantially water soluble poly(ethylene glycol) is provided having of a linear or branched poly(ethylene glycol) backbone and at least one terminus linked to the backbone through a hydrolytically stable linkage, wherein the terminus is branched and h... | 04/18/2006 |
| 7030281 | Synthesis of 3,3,-dimethylbutyraldehyde by the reduction of 3,3,-dimethylbutyric acid A process for the production of 3,3-dimethylbutyraldehyde is disclosed. The 3,3-dimethylbutyraldehyde is obtained by the reduction of 3,3-dimethylbutyric acid using trimethylacetic anhydride and a phosphine. The 3,3-dimethylbutyric acid is preferably obtained by a p... | 04/18/2006 |
| 6995293 | Method for the production of aldehydes The present invention relates to a hydroformylation method by conversion of olefins or olefinically unsaturated compounds in the presence of at least one rhodium compound and in the presence of sulfonated arylphosphines in ionic liquids, which are based on a quatern... | 02/07/2006 |
| 6962730 | Coating composition containing crosslinkable monomeric difunctional compounds having at least thirty carbon atoms The invention provides coating compositions comprising a reactive component (a) which is substantially free of any heteratoms and is a not a crystalline solid at room temperature and which comprises from (i) 12 to 72 carbon atoms, and (ii) at least two functional gr... | 11/08/2005 |
| 6949681 | Intermediate for preparing glycopeptide derivatives This invention provides compounds of the formula: wherein A and B are as defined; and Fmoc is 9-fluorenylmethoxycarbonyl. Such compounds are useful as intermediates for preparing glycopeptide d... | 09/27/2005 |
| 6933270 | 3,3-Dimethylcyclohexane derivatives Compounds of the formula (I): wherein the bond between the α- and β-positions to the aldehyde group represents a C—C single bond or a cis- or trans-configured C═C double bond are useful as perfumes and perfume in... | 08/23/2005 |
| 6909014 | Intermediates for the synthesis of ether compounds The present invention relates to novel ether compounds, compositions comprising ether compounds, and methods useful for treating and preventing cardiovascular diseases, dyslipidemias, dysproteinemias, and glucose metabolism disorders comprising administering a compo... | 06/21/2005 |
| 6867175 | Trimethyldecenyl compounds A Compound corresponding to formula (I): wherein X is a group selected from the group consisting of —CHO, —CN, —CH═NOH, and —CH2OH, and wherein the C═C double bond assumes a Z or E configuration.... | 03/15/2005 |
| 6858736 | Hexa-arm polyethylene glycol and its derivatives and the methods of preparation thereof The present invention relates to novel hexa-arm polyethylene glycol (6-arm PEG) and its derivatives. The core of 6-arm PEG derivatives is sorbitol and the end groups can be derivatized into many different reactive functionalities that are useful in conjugating with ... | 02/22/2005 |
| 6843978 | Microporous materials (TIQ-6 and METIQ-6) of high surface area active in oxidation reactions The present invention refers to a microporous material formed by oxygen, silicon, germanium, aluminum, boron, gallium, zirconium and/or titanium in its composition, called TIQ-6, to its catalytic applications in oxidation reactions, and to a method of the TIQ-6 mate... | 01/18/2005 |
| 6803356 | Antimicrobial polymeric compositions A method for the preparation of polymers derived from acrolein and including poly(2-propenal, 2-propenoic acid), characterised in that the polymers are exposed to the presence of water, whereby such polymers exhibit increased antimicrobial activity. The polymers may... | 10/12/2004 |
| 6620972 | Method of oxidizing an alcohol using a recyclable fluorous sulfoxide A method of oxidizing primary and secondary alcohols to an aldehyde or ketone using a fluorous sulfoxide or a fluorous sulfide is disclosed. The method includes regenerating and recycling the fluorous sulfoxide.... | 09/16/2003 |
| 6603017 | Preparation of 2-alkyl-3-(4,5-dihydroisoxazol-3-yl) halobenzenes A novel process for preparing the compounds of the formula I ##STR1## where: n is 0, 1 or 2; R1, R2 are C1 -C6 -alkyl; R3, R4, R5 are hydrogen or C1 -C6 -alkyl, or ... | 08/05/2003 |
| 6541594 | Coating compositions containing crosslinkable monomeric difunctional compounds having at least thirty carbon atoms The invention provides coating compositions comprising a reactive component (a) which is substantially free of any heteratoms and is a not a crystalline solid at room temperature and which comprises from (i) 12 to 72 carbon atoms, and (ii) at least two fu... | 04/01/2003 |
| 6448448 | Process for the non-oxidative preparation of formaldehyde from methanol The invention relates to a method for producing formaldehyde from methanol by non-oxidative dehydrogenation, in a reactor, in the presence of a catalyst at a temperature between 300 and 1000° C. Said method is characterized in that the generation of the ... | 09/10/2002 |
| 6444856 | Preparation of aldehydes and/or alcohols having from 6 to 30 carbon atoms In a process for preparing aldehydes and/or alcohols having from 6 to 30 carbon atoms by hydroformylation of olefins by means of synthesis gas in the presence of a catalyst at from 120° C. to 210° C. and pressures of from 100 to 400 bar, a reaction mixt... | 09/03/2002 |
| 6441052 | Cyclopentylalkyl-nitriles The present invention provides compounds of formula I ##STR1## wherein R1 and R3 are independently H or C1-3 alkyl, and R2 is H, C1-3 alkyl, methylene or ethylidene, with the proviso that R1 ... | 08/27/2002 |
| 6437190 | Preparation of aldols using a microstructured reaction system A process for preparing aldols by catalytic reaction of aldehydes and/or ketones comprises conducting said reaction in the channels of a microstructured reaction system.... | 08/20/2002 |
| 6433231 | Method for production of halogen-containing aromatic compound A method for producing inexpensively in a high yield a halogen-containing aromatic compound, particularly a halogen-containing aromatic compound incorporating therein a bromodifluoroalkyl group, and a halogen-containing naphthalene compound useful as a ra... | 08/13/2002 |
| 6410799 | Hydroformylation process employing a catalyst based on cobalt and/or rhodium in a non-aqueous ionic solvent In a process for hydroformylation of olefinically unsaturated compounds using a catalyst based on cobalt and/or rhodium co-ordinated by at least one ligand selected from the group formed by nitrogen-containing or phosphorus-containing ligands used in a no... | 06/25/2002 |
| 6392102 | Preparation of polyoxymethylene dimethyl ethers by catalytic conversion of formaldehyde formed by oxidation of dimethyl ether A particularly useful process which includes the steps of providing a feedstream comprising providing a source of formaldehyde formed by conversion of dimethyl ether in the presence of a catalyst comprising tungsten oxide; and (i) heating the feedstream w... | 05/21/2002 |
| 6362305 | Method for producing formaldehyde from methanol In a process for preparing formaldehyde from methanol by dehydrogenation in a reactor in the presence of a catalyst at a temperature in the range from 300 to 1000° C., a circulating gas stream comprising by-products of the dehydrogenation is passed throu... | 03/26/2002 |
| 6362254 | Poly(ethylene glycol) derivatives with proximal reactive groups An activated, substantially water soluble poly(ethylene glycol) is provided having of a linear or branched poly(ethylene glycol) backbone and at least one terminus linked to the backbone through a hydrolytically stable linkage, wherein the terminus is bra... | 03/26/2002 |
| 6353140 | Process for the purification of cyclopropanecarboxaldehyde Disclosed is process for the treatment of cyclopropanecarboxaldehdye (CPCA) which contains crotonaldehyde impurity with a base at elevated temperature to convert the crotonaldehyde to one or more higher boiling compounds followed by distillation to recove... | 03/05/2002 |
| 6319683 | Method and composition for controlling formaldehyde fixation by delayed quenching A method and composition for quenching formaldehyde fixation of cell and tissue specimens. The composition includes a formaldehyde-reactive agent. The formaldehyde-reactive agent reacts with the formaldehyde to quench the fixation of the cell or tissue sp... | 11/20/2001 |
| 6287829 | Process for the selective enzymatic hydroxylation of aldehydes and ketones A process for the selective enzymatic hydroxylation of aldehydes and ketones using chiral anchor-protective groups.... | 09/11/2001 |
| 6271408 | Process for making metabolites of lycopene This invention relates to trimethylsilyloxy-cyclopentane derivatives: 3-(1-Acetoxy-1-methylethyl)- 2-formyl-1-methyl-1-trimethylsilyloxy-cyclopentane; 4-[5-(1-Hydroxy-1-methylethyl)-2-methyl-2-trimethylsilyloxy-cyclopentyl]-3 -buten-2-one; 5-[5-(... | 08/07/2001 |
