Did You Know...
...that the Band-Aid Bandage was invented by a Johnson & Johnson employee whose wife had cut herself? Earl Dickson's wife was rather accident prone, so he set out to develop a bandage that she could apply without help. He placed a small piece of gauze in the center of a small piece of surgical tape, and what we know today as the Band Aid bandage was born!
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7964755 | Curcumin synthesis Process for the preparation of curcumin by condensation of vanillin with acetylacetone in the presence of boric acid and an aliphatic or araliphatic amine in a highly polar, aprotic solvent, under concomitant removal of water. ... | 06/21/2011 |
| 7855310 | AH receptor antagonists The invention relates to the field of aryl hydrocarbon receptor (Ah receptor; AhR) antagonists and their uses. ... | 12/21/2010 |
| 7507864 | Method for the synthesis of curcumin analogues The present invention relates to improved methods for achieving the synthesis of 1,7-diaryl-1,6-heptadiene-3,5-diones, and in particular curcumin and its analogues. The invention provides a process for synthesizing such compounds in substantial yield and purity usin... | 03/24/2009 |
| 7432401 | Method for the preparation of 1,5-bis(4-hydroxy-3-metoxy-phenyl)-penta-1,4-dien-3-one and derivatives with antitumoral properties This patent of invention reports the method for the preparation of 1,5-bis(4-hydroxy-3-methoxyphenyl)-penta-1,4-dien-3-one and derivatives with antitumoral properties: the sample denominated 37 compound was obtained with high yield and purity with ultrasonic techniq... | 10/07/2008 |
| 7332632 | Method for producing aldehyde compound or ketone compound by using microreactor The method for producing an aldehyde or ketone compound from a corresponding primary or secondary alcohol at relatively high temperature within a short time with a high yield including a step (1) of reacting a sulfoxide compound with an activating agent to produce a... | 02/19/2008 |
| 7244805 | Bimetallic zinc complex and process of producing polycarbonate using the same as polymerization catalyst Provided are a bimetallic zinc complex and a method of producing polycarbonate, including polymerizing an epoxy compound and carbon dioxide using the bimetallic zinc complex. The bimetallic zinc complex according to the present invention has a distance between zinc-... | 07/17/2007 |
| 7161041 | Process for producing cycloalkanone derivatives The present invention provides a process for producing 2-(1-hydroxyalkyl)cycloalkanone and/or 2-(1-hydroxyaryl)cycloalkanone in high yield and selectivity, as well as a process using the same to produce a cycloalkanone derivative useful as a perfume material and a p... | 01/09/2007 |
| 7119234 | Process for the preparation of 1-(4-chlorophenyl)-4,4-dimethylpent-1-ene-3-one The present invention relates to a method for the preparation of as 1-(4-Chlorophenyl)-4,4-dimethylpent-1-ene-3-one, also known as Phenyl aldol. The process of the present invention utilizes catalysts. The process enables the manufacture of the Phenyl aldol in the a... | 10/10/2006 |
| 6995289 | Process for synthesis of alpha, beta-unsaturated ketones A method for the synthesis of an α,β-unsaturated ketone useful for making substituted 1,4-dihydropyridines is described by reacting an aldehyde with pyrrolidine and then adding a ketone followed by trifluoroacetic acid at low temperature. The synthesis is used in ... | 02/07/2006 |
| 6946579 | Arylpiperazines having activity at the serotonin 1A receptor A series of aryl piperazine compounds are effective pharmaceuticals for the treatment of conditions related to or affected by the serotonin 1A receptor; the compounds are particularly effective antagonists at that receptor, and are particularly useful for... | 09/20/2005 |
| 6900356 | Polyhydroxy curcumins having antioxidant activity This invention relates to novel polyhydroxy curcumins of the formula (I), wherein R and R1 may be same or different and are selected from H, OH and OCH3. This invention also includes a process for synthesising the above polyhydroxy curcumins by... | 05/31/2005 |
| 6610889 | Catalytic compositions and methods for asymmetric aldol reactions Methods and compositions are provided for the direct catalytic asymmetric aldol reaction of aldehydes with donor molecules selected from ketones and nitroalkyl compounds. The reactions employ as catalyst a Group 2A or Group 2B metal complex of a ligand of... | 08/26/2003 |
| 6541672 | Derivatives of benzilidine cyclohexanone, benzilidine cyclopentanone, and benzilidine acetone and their synthesis The invention deals with the derivatives of benzilidine having basic formula as follows (I): ##STR1## wherein X can be cyclohexanone, cyclopentanone, or acetone, while Y and Z can be either electron withdrawing, electron donating or steric group. Y m... | 04/01/2003 |
| 6518316 | Cytokine production and tyrosine kinase inhibitors A compound of formula (I), wherein X is .dbd.O, .dbd.N--OR6, ଲNHR or ଲOH wherein R6 is H or C1 -C6 alkyl, bond a is oriented γ or δ and R is H, C1 -C6 alkyl which is un... | 02/11/2003 |
| 6459000 | Process for the liquid phase acylation of aromatic compounds The present invention provides a liquid phase process for the acylation of aromatic compound by an acylating agent of the formula (R5 R6 R7)--Y--Z to obtain the corresponding acylated compound using a solid catalyst compri... | 10/01/2002 |
| 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 |
| 6433230 | Process for conducting an aldol condensation ,ଲ-Unsaturated keto compounds are prepared by base-catalyzed aldol condensation of aldehydes and/or ketones having from 1 to 15 carbon atoms, comprising: reacting the aldehydes and/or ketones with an aqueous catalyst solution under adiabatic ... | 08/13/2002 |
| 6384284 | Biphenyl compounds substituted by camphor or hydantoin derivatives as sunscreen compositions A description is given of diphenyl compounds of formula ##STR1## wherein R is a camphor or hydantoin derivative; and R1 is hydrogen; or C1 -C5 alkyl. These compounds are suitable as light stabilizers in cosmetic, pharmaceutical... | 05/07/2002 |
| 6303823 | Process for preparing ketones, in particular 6-methylheptan-2-one A process for preparing ketones by so-called "crossed aldol condensation" of a ketone with an aldehyde in the presence of a catalyst system consisting of approximately equimolar amounts of a secondary amine and of a carboxylic acid containing at least 2 C... | 10/16/2001 |
| 6277357 | Ketotricyclo[5.2.1.0]decane derivatives The invention relates to ketotricyclo[5.2.1.0]-decane derivatives of the formula I ##STR1## wherein Phe is a phenyl group which is unsubstituted or substituted by 1 to 5 hydroxyl, alkyl or alkoxy groups having 1 to 10 C atoms, and their preparation and us... | 08/21/2001 |
| 6278025 | Process for the preparation of substituted dibenzoylmethane compounds The invention relates to a process for the preparation of substituted dibenzoylmethane compounds of the formula I, ##STR1## which comprises a1) condensing benzaldehydes of the formula II with acetophenones of the formula III to give the chalkon... | 08/21/2001 |
| 5981073 | Compounds based on dibenzoylresorcinol, and related compositions and articles Novel dibenzoylresorcinol-based compounds are disclosed wherein the dibenzoylresorcinol is bonded to the residue of either an alcohol or a carboxylic acid group, via a methylene carboxylate linking group; and wherein the dibenzoylresorcinol is bonded dire... | 11/09/1999 |
| 5861538 | Production of alkoxynaphthyl-substituted ketones from naphthaldehydes A mixture formed from an alkoxy-2-naphthaldehyde (e.g., 6-methoxy-2-naphthaldehyde), acetone, and aqueous NaOH and/or KOH is heated at about 20° to about 56° C. for about 0.25 to about 2 hours such that the conversion of monoalkoxy-substituted 2-na... | 01/19/1999 |
| 5847225 | Production of naphthyl-substituted ketones from naphthaldehydes A mixture formed from 2-naphthaldehyde (e.g., 6-methoxy-2-naphthaldehyde) and a dihydrocarbyl ketone having at least one hydrogen atom in the -position (e.g., acetone) is heated in the presence of a heterogeneous basic catalyst (e.g., basic alumina... | 12/08/1998 |
| 5759689 | Coextruded polycarbonate sheet with improved weathering A compound of the formula: ##STR1## is blended with a polycarbonate resin to obtain an ultra-violet light degradation resistant article.... | 06/02/1998 |
| 5741937 | Process for the preparation of arylidene-substituted alkylcycloalkanones Arylidene-substituted alkylcycloalkanones are prepared from alkyl-substituted cycloalkanones by reaction with aromatic carbonyl compounds in the presence of a basic catalyst and water.... | 04/21/1998 |
| 5712419 | Method of making coupled 4,6-dibenzoylresorcinols An improved method of making methylene-bridged 4,6-dibenzoylresorcinol dimers in a single step in high yield quantities is provided. The method heats a 4,6-dibenzoylresorcinol (DBR) with a para-aldehyde or an aromatic aldehyde in a carboxylic acid solvent... | 01/27/1998 |
| 5679864 | Process for the synthesis of curcumin-related compounds The invention is directed to a process for the synthesis of curcumin and curcumin-related compounds by reacting the enol form of a 2,4-diketone with a monocarbocyclic aldehyde in the presence of an organic amine catalyst. The reactants are dissolved in a ... | 10/21/1997 |
| 5637774 | Process for the production of vinyl carbonyls Disclosed is a very economical way to produce vinyl carbonyls such as ethyl vinyl ketone. Disclosed also is a purification process of separating vinyl carbonyls and coreactants. The catalyst and reaction conditions give useful yields of vinyl carbonyls, t... | 06/10/1997 |
| 5372995 | Reduced reaction product of protonic acid catalyzed reaction of methyl ethyl ketone and benzaldehyde and perfume uses thereof Described is a two-step process for producing phenyl- and cyclohexyl-substituted oxybutane derivative-containing mixtures of our invention by means of first reacting methyl ethyl ketone with benzaldehyde in the presence of a sulfonic acid catalyst to prod... | 12/13/1994 |
| 5300654 | Method for the preparation of unsaturated ketones ଲ-hydroxyketones are prepared by reacting an aldehyde with acetone in the presence of perhydroisoindole or pyrrolidine and water. The resulting ଲ-hydroxyketone is further reacted in the presence of a solvent mixture to produce -ଲ-... | 04/05/1994 |
| 5290357 | Acetone/formaldehyde/cyanide resins A composition for and method of dispersing particles of hydraulic cement in a slurry of hydraulic cement in water, wherein the composition is the reaction product of a ketone, an aldehyde, a cyanide and, optionally, a sulfite. The dispersant properties of... | 03/01/1994 |
| 5278343 | Process for producing 2-methyl-1-naphthol 2-Methyl-1-naphthol is obtained by isomerization of 2-methylene-1-tetralone. For the isomerization of 2-methylene-1-tetralone there is used a Pd-, Rh- or Ru-based catalyst that has been previously treated with hydrogen gas. 2-Methylene-1-tetralone synthes... | 01/11/1994 |
| 5214151 | Method for the preparation of , ଲ-unsaturated ketones The present invention relates to a method for the preparation of , ଲ-unsaturated ketones represented by general formula (II) ##STR1## (where R is a heterocyclic group with nitrogen atom in the ring or a phenyl group with electron donativ... | 05/25/1993 |
| 5202495 | Chemical process A process for the preparation of the compound of formula (I), 3-(6'methoxy-2'-naphthylmethyl)-2,4-pentanedione, ##STR1## comprises the calalytic hydrogenation of a compound of formula (II): ##STR2##... | 04/13/1993 |
| 5177222 | 1,1-dialkoxy-2-oxo-6-aryl-3,5-alkadienes 1,1-Dialkoxy-2-oxo-6-aryl-3,5-alkadienes of the general formula I ##STR1## where Ar is a phenyl, biphenyl or naphthyl radical which may be substituted by one, two or three C1 -C4 -alkyl groups, C1 -C4 -alko... | 01/05/1993 |
| 5072050 | Ketone-terminated polyoxyalkylene compounds Mono-, di- and tri-ketones of polyoxyalkylene compounds prepared by a method whereby the terminal hydroxyl groups of polyoxyalkylene compounds are oxidized to ketone groups with an alkali metal or an alkaline earth metal hypochlorite oxidant in the presen... | 12/10/1991 |
| 5041604 | Process for producing di(aryloxy)alkane A process for producing a high quality di(aryloxy)alkane with a high yield by the use of readily commercially available materials, without using any particular solvent or agent and by means of a simple operation and a general apparatus is provided, which ... | 08/20/1991 |
| 5026919 | Base-catalyzed reactions using zeolite catalysts Basic intermediate or large pore zeolites having a Constraint Index less than 12 are useful as catalysts in the dehydrogenation-aromatization of cyclie dienes, in the isomerization of olefins and in the aldol condensation, and particularly in the cyclizat... | 06/25/1991 |
| 5004839 | Preparation of unsaturated ketones from acetone and paraformaldehyde (II) Unsaturated ketones are produced from ketones and paraformadehyde under mild reaction conditions utilizing a catalyst comprising a halogen acid salt of a secondary amine and a nonsoluble solid oxide of an element selected from groups IB, IIIA, IVA, IVB, V... | 04/02/1991 |
