"I think there is a world market for maybe five computers."
Thomas Watson, chairman of IBM ; 1943
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 |
| 7196226 | Fluoraminoolefins and fluorination reagents which can be prepared therefrom The present invention relates to fluorination reagents comprising 1-fluoro-1-aminoolefins and also processes for preparing fluorination reagents comprising 1-fluoro-1-aminoolefins. ... | 03/27/2007 |
| 6794545 | Conformationally restricted polyamine analogs as disease therapies Novel conformationally restricted polyamine analogs are provided, as well as compositions comprising these novel polyamine analogs. Methods of using the novel polyamine analogs in treatment of diseases such as cancer are also provided. Also provided is a method of d... | 09/21/2004 |
| 6605645 | Linear polyamine compounds and polyamine-based anti-tumor agents Nobel polyamine compounds and polyamine compounds having carcinostatic action are provided. There are also provided anticancer agents containing as active ingredient at least one of polyamine compounds represented by the following Formula (I) or (III) and... | 08/12/2003 |
| 6448445 | Method for catalytically disubstituting carboxylic acid amides with at least one grignard reagent The invention relates to a method for disubstituting carboxylic acid amides on the geminal carbonyl-C-atom using at least one grignard reagent in the presence of a metal alcoholate compound used as a catalyst and in the presence of another organometallic ... | 09/10/2002 |
| 6252071 | Aminomethylation of tocopherols A process for the production of a Mannich reagent comprises reacting formaldehyde, especially paraformaldehyde, with a secondary amine in the complete or almost complete absence of a solvent. An alternative comprises reacting a diaminomethane produced fro... | 06/26/2001 |
| 5912386 | Bridged anthraquinones The present invention relates to compounds of the formula (I) R1 --NH--B--NH--R2 (I), wherein R1 and R2 independently of one another denote an unsubstituted or substituted radical of the form... | 06/15/1999 |
| 5663443 | Ruthenium catalysts, their preparation and a process for preparing cycloaliphatic polyamines using these catalysts Novel ruthenium catalysts additionally contain carbonates, hydroxides and/or hydrated oxides of cerium and manganese or of manganese and/or dehydration products thereof. They can optionally be present on a support material and can be prepared by convertin... | 09/02/1997 |
| 5550294 | Method of increasing hydrogenation rate of aromatic amines A process for increasing the rate of catalytic hydrogenation of aromatic amines by reacting aromatic amines with hydrogen in the presence of a noble metal catalyst, a water miscible organic solvent, lithium hydroxide catalyst promoter, and water in an eff... | 08/27/1996 |
| 5521220 | Acyclic ethylenediamine derivatives The present invention relates to novel acyclic ethylenediamine derivatives of nitrogen containing heterocyclic compounds, and specifically, to compounds of the formula ##STR1## wherein R1, R2, R3, R4, R | 05/28/1996 |
| 5488168 | Tertiary amino alcohol and method of producing the same A tertiary amino alcohol, being useful as an emulsifier, is defined by the formula (1) or (2): ##STR1## where R is a C2 to C24 straight-chain or branched alkylene group, an alicyclic alkylene group, an aralkylene group or --CH | 01/30/1996 |
| 5463128 | 1,4-bis(4,4-diphenyl-1,3-butadienyl)benzene derivative and electrophotographic photoreceptor using the same A 1,4-bis(4,4-diphenyl-1,3-butadienyl)benzene derivative represented by formula (I): ##STR1## wherein R1, R2, R3, and R4 each independently represents a lower alkyl group which may be substituted, an aralky... | 10/31/1995 |
| 5360934 | Hydrogenation of aromatic amines to produce their ring hydrogenated counterparts This invention relates to an improved hydrogenation process wherein aromatic amines are hydrogenated to their ring hydrogenated counterparts. These aromatic amines are presented by the formulas: ##STR1## wherein R is hydrogen or C1-6 aliph... | 11/01/1994 |
| 5256824 | Substituted-amine compound and a process for the preparation thereof The compound (-)-N-t-butyl-4,4-diphenyl-2-cyclopentenylamine, or its hydrochloride salt has anticholinergic activity, and thus has a variety of pharmaceutical utilities.... | 10/26/1993 |
| 5245082 | Process for the production of di-(4-aminocyclohexyl)-methane containing 15 to 25% by weight of the trans-trans isomer Di-(4-aminocyclohexyl)-methane containing 15 to 25% by weight of the trans-trans isomer can be obtained by the catalytic hydrogenation of di-(4-aminophenyl)-methane at elevated temperature and elevated hydrogen pressure in the presence of a ruthenium-cont... | 09/14/1993 |
| 5196594 | Process for the production of 4,4'-diamino-dicyclohexylmethane with a low trans-trans isomer content by the catalytic hydrogenation of 4,4'-diamino-diphenylmethane The present invention is directed to a process for the catalytic hydrogenation of a starting material containing 4,4'-diamino-diphenylmethane (4,4'-MDA) or its mixtures with 2,4'-diamino-diphenylmethane, 2,2'-diamino-diphenylmethane and/or higher rin... | 03/23/1993 |
| 5099077 | Chiral phosphorus compounds, a process for their manufacture and their application to the catalysis of enantioselective synthesis reactions A method of using a chiral phosphorus-containing ligands comprising at least one amine radical and at least one dihydrocarbylphosphioxy radical of the formula W=OP (R)2 ; from the group consisting of: those of the formula ##STR1## those of... | 03/24/1992 |
| 5084592 | Azulenesquaric acid dyes, azulene intermediates therefor, and optical recording medium Azulenesquaric acid dyes of the formula ##STR1## where R1, R2, R3, R4 and R5 each have specified meanings are prepared from azulene derivatives of the formula ##STR2## where R1, R... | 01/28/1992 |
| 5066764 | Sterically hindered ditertiary butyl bridged di(cyclohexylamines) This invention relates to ditertiary-butyl substituted bridged di(cyclohexylamines) where the tert-butyl substituent is alpha to the amine group and to polyepoxide formulations incorporating the di(cyclohexylamine). The formula of the diamine is: ##S... | 11/19/1991 |
| 4946998 | Hydrogenation of methylenedianiline to produce bis(para-aminocyclohexyl)methane This invention relates to an improved hydrogenation process wherein methylenedianiline is reduced to form bis(para-aminocyclohexyl)methane (PACM). The process contemplates contacting methylenedianiline and hydrogen in the presence of a two component metal... | 08/07/1990 |
| 4897425 | Fungicidal cyclohexylamines Cyclohexylamines of the formula ##STR1## where X is a single bond or an alkylene chain, Y is hydrogen or an aryl, cyclohexyl, 4-cyclohexylcyclohexyl, perhydro-1- or 2-naphthyl or piperidyl radical, R1 and R2 are hydrogen, alkyl,... | 01/30/1990 |
| 4894109 | Method and apparatus for tacking together the copies of multicopy forms A method and apparatus for tacking together multipage forms having pin holes with the use of adhesive tacking tape.... | 01/16/1990 |
| 4754070 | Hydrogenation of methylenedianiline to produce bis(para-aminocyclohexyl)methane This invention relates to an improved hydrogenation process wherein methylenedianiline is reduced to form bis(para-aminocyclohexyl)methane (PACM). The process contemplates contacting methylenedianiline and hydrogen in the presence of a two component metal... | 06/28/1988 |
| 4751278 | Adducts of monoepoxides and selected diamines The adducts of monoepoxides with selected diamines, preferably m-xylylenediamine, are useful as curing agents for the curing of epoxy resin compositions at very low temperatures (25°-50° F., -4° to 10° C.).... | 06/14/1988 |
| 4716248 | Aminocyclohexyl-substituted, branch alkylamines New compounds having the formula: wherein p is 1 or 2 and the residues QNH2 are the same or different and each is a residue of formula: ##STR1## wherein n is an integer from 1 to 15; R1 is C1 -C8 alkyl; R | 12/29/1987 |
| 4566900 | Aniline derivatives and their use for controlling undesirable plant growth Aniline derivatives of the formula ##STR1## where R1, Y, A, Z and n have the meanings given in the description, are used for controlling undesirable plant growth.... | 01/28/1986 |
| 4506099 | Process for producing substituted 1,11-diaminoundecanes Diamines of the formula I ##STR1## wherein R1, R2, R3 and R4 have the meanings defined in claim 1, can be produced by a simple process comprising reacting 1-aza-1,5,9-cyclododecatrienes, correspondingly sub... | 03/19/1985 |
| 4503249 | Hydrogenation catalysts Iron (II) hexacyanocobaltate and ruthenium (III) hexacyanocobaltate have been found to be useful in the catalytic hydrogenation of organic materials.... | 03/05/1985 |
| 4399307 | Amination process The distillation of 2,2'bis(4-aminocyclohexyl)propane to yield high purity product is effectively carried out using high boiling organic solvents.... | 08/16/1983 |
| 4332969 | Substituted 11-aminoundecanols Novel substituted 11-aminoundecanols of the formula ##STR1## and a process for their preparation are described; in the formula, R1 and R3 independently of one another are hydrogen or alkyl having 1-8 C atoms and R2 an... | 06/01/1982 |
| 4328368 | Method for reclaiming polyurethane foam A method if provided for continuously hydrolyzing urethane foam in a vertically oriented hydrolysis reactor. In a preferred practice, a bed of foam particles is formed in the reactor. Superheated steam is flowed continuously upward through the bed at a te... | 05/04/1982 |
| 4326067 | Process for making N-(2-aminoethyl)amides The process of the invention for preparing a N-(2-substituted aminoethyl)amide of the formula: ##STR1## comprises contacting one or more compounds of the formula: ##STR2## with an amine of the formula: ##STR3## wherein A is nitrogen or... | 04/20/1982 |
| 4316003 | Epoxy resin curing agents An adduct suitable for curing epoxy resins, particularly in water-borne systems, comprises first reacting an epoxy resin, preferably a saturated epoxy resin, with a primary monoamine and then reacting the resulting condensate with a polyfunctional amine.... | 02/16/1982 |
| 4310695 | Stable epoxy-amine curing agent adducts Stable adducts suitable for curing epoxy resins are prepared by reacting a saturated epoxy resin with an excess of an amine and then reacting resulting epoxy-amine condensate with a base, preferably a strong base such as potassium or sodium hydroxide to r... | 01/12/1982 |
| 4293687 | Tetraalkylated biscyclohexylamine derivatives New biscyclohexylamine derivatives represented by the following formula ##STR1## wherein R1 to R4 represent identical or different alkyl groups having 1 to 6 carbon atoms; X is a single bond, a divalent aliphatic straight-chain or br... | 10/06/1981 |
| 4260727 | Epoxy-amine adducts for use in electrodeposition The present invention deals with unique substituted ammonium compounds for use in cationic electrodeposition processes.... | 04/07/1981 |
| 4226737 | Polycycloaliphatic polyamines Novel polycycloaliphatic polyamines are provided which have the structure ##STR1## wherein x and y are integers of from 0 to about 2 and the sum of x+y is at least 1. Further, polycycloaliphatic polyamine curing agents for polyepoxide resins are prov... | 10/07/1980 |
| 4102890 | 2-Amino oxazolines and process for making the same Cyclopropylmethylamines which are substituted on the 2-position of nitrogen heterocycles so as to provide new compounds of the formula ##STR1## wherein A is oxygen, sulfur, or nitrogen; the other "R" variables in general are hydrogen, lower-alkyl, cy... | 07/25/1978 |
| 4049584 | Supported ruthenium catalyst and process for preparing it A supported ruthenium catalyst has a support based on hydroxides and/or hydrated oxides of chromium and manganese and/or their dehydration products. The catalyst generally contains 0.1 to 10% by weight of ruthenium relative to the support catalyst and the... | 09/20/1977 |
| 4035174 | Novel dibicyclo [3.1.1] and [2.2.1] heptyl and dibicyclo [3.1.1] and [2.2.1] heptenyl polyamines and methods for their preparation Novel dibicyclo [3.1.1] and [2.2.1] heptyl and dibicyclo [3.1.1] and [2.2.1] heptenyl polyamines having a cyclohexylene group in the polyamine moiety are useful antimicrobial agents, as well as algae inhibitors. They are especially useful as hard surface ... | 07/12/1977 |
| 4026807 | Alkynoxymethyl amines This invention relates to alkynoxymethyl amines, to methods of preparing them, and uses thereof, particularly as corrosion inhibitors. These compounds are prepared by reacting an amine, such as RNH2, with an aldehyde, such as formaldehyde, and ... | 05/31/1977 |