U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Bizarre Patents

Patent No. 5678617

Method and apparatus for making a drink hop along a bar or counter

A method for generating a drink which appears to hop from a remote spot on the bar or counter and take one or more leaps, before landing in a patron's glass.

Newsletter  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.

 

Class 540/539 - Reactant contains a cyano group


Subclass of Class 540 - Organic compounds -- part of the class 532-570 series
Definition: Processes wherein a reactant contains a cyano group (i.e.,
No. of patents: 50
Last issue date: 03/29/2011


1    
NumberTitleIssue Date
7915403Production of lactams
Lactams, notably ε-caprolactam, are prepared from alkyl cyanovalerates, themselves obtained from unsaturated nitrile compounds, by contacting same, in gaseous state, with hydrogen in the presence of hydrogenation/cyclization catalysts, and then condensing the gas s...
03/29/2011
7390897Method for making caprolactam from impure 6-aminocapronitrile
The invention relates to the field of production of lactams from aminonitriles, and in particular to the production of ε-caprolactam by the vapor phase hydrolytic cyclization of 6-aminocapronitrile. A crude liquid caprolactam comprising ε-caprolactam (CL), 6-amino...
06/24/2008
7238804Preparation of lactams
A process for the manufacture of a lactam from an amino alkane nitrile and/or its hydrolysis derivatives, comprising reacting a solution comprising at least about 5% by weight amino alkane nitrile in water at a temperature of greater than or equal to about 350° C. ...
07/03/2007
7217818Purification of caprolactam
A process for removing high boilers from crude caprolactam which comprises high boilers, caprolactam and in some cases low boilers, and which has been obtained by a) reacting 6-aminocapronitrile with water to give a reaction mixture b) remo...
05/15/2007
7147757Method for separating an azepine derivative out of a mixture containing an amine an azepine derivative
The invention relates to a method for separating by distillation a portion or the entirety of an azeptine derivative (III), which is selected from the group consisting of aminohexylidene imine, tetrahydroazepine, hexylhexahydroazepine and of aminohexylhexahydroazepi...
12/12/2006
7060820Process for making caprolactam
Lactams, in particular ε-caprolactam, are produced by the hydrolytic cyclization of aminonitriles, in particular 6-aminocapronitrile, in the vapor phase in a plurality of adiabatic fixed bed reaction zones arranged in succession wherein at least a portion of the he...
06/13/2006
7022844Amide-based compounds, production, recovery, purification and uses thereof
Methods are disclosed of producing and purifying at least one amide. In accordance with one of the methods disclosed herein, the at least one amide is produced by providing an organic liquid comprising at least one oxime, providing at least one catalyst, adding the ...
04/04/2006
6972075Method for removing 6-aminocapronitrile from mixtures that contain 6-aminocapronitrile, adipodinitrile and hexamethylenediamine
The invention relates to a method for removing, by distillation, 6-aminocapronitrile from mixtures that contain 6-aminocapronitrile, adipodinitrile and hexamethylenediamine, by a) removing the hexamethylenediamine from the mixture while obtaining a mixture (I) that ...
12/06/2005
6958381Polyamide
A process for preparing polyamides comprises polymerizing starting monomers in the presence of from 2.3 to 10 mmol, based on 1 mol of carboxamide group of the polyamide, of a chain regulator containing a nitrile group and a functional group capable of forming a carb...
10/25/2005
6878798Method for producing a polymer, using caprolactam
A process for preparing a polymer, which comprises a) reacting a mixture (I) containing 6-aminocapronitrile and water in the presence of a catalyst to obtain a mixture (II) containing caprolactam, ammonia, water, high boilers and l...
04/12/2005
6858728Method for making caprolactam from impure ACN in which THA is not removed until after caprolactam is produced
Method for making caprolactam from 6-aminocapronitrile that contains greater than 500 ppm tetrahydroazepine and its derivatives (THA) in which the THA is not removed from the method until after the caprolactam is produced. ...
02/22/2005
6841666Process for the preparation of ε-caprolactam
The invention relates to a process for the preparation ε-caprolactam starting from 6-aminocapronitrile by hydrolysis/oligomerisation followed by de-oligomerisation/cyclisation using superheated steam characterized in that the hydrolysis/oligomerisation is performed...
01/11/2005
6835830Method for evaporating aminonitrile
The invention concerns a method for evaporating aminonitrile and water in conditions limiting or eliminating the formation of heavy by-products in particular amino-carboxylic acid oligomers. To avoid said inconvenience, said method for evaporating aminonitrile and w...
12/28/2004
6716977Method for making caprolactam from impure ACN wherein ammonia and water are removed from crude caprolactam in a simple separation step and then THA is removed from the resulting caprolactam melt
Method for making caprolactam from 6-aminocapronitrile that contains greater than 500 ppm tetrahydroazepine and its derivatives (THA) in which ammonia and water are removed from crude caprolactam in a single separation step and then THA is removed from the resulting...
04/06/2004
6686465Preparation of cyclic lactams
A process is provided for the preparation of cyclic lactams of formula (II): ##STR1## in which n and m can each have the values 0, 1, 2, 3, 4, 5, 6, 7, 8 and 9 and the sum of n+m is at least 3, preferably at least 4, and R1 and R2
02/03/2004
6683180Method for the production of caprolactam
A process is provided for the preparation of caprolactam from a compound of formula (I): in which R is a carboxamide, carboxylic acid or carboxylic acid ester group, wherein a) a compound (I) or a mixture of such compounds, in the presence of ammonia ...
01/27/2004
6683177Process for producing caprolactam
A process for preparing caprolactam by reacting 6-aminocapronitrile with water in the presence of catalysts comprises using a starting mixture of 6-aminocapronitrile and the tetrahydroazepine derivative of the formula ##STR1## and conducting the reaction ...
01/27/2004
6683178Preparation of cyclic lactams
The invention relates to a method for producing cyclic lactams of formula (II) by reacting a compound (I) of formula (I) with water in the presence of an organic, liquid dilution agent in the liquid phase. In formula (II), n and m respectively can have th...
01/27/2004
6683179Preparation of caprolactam
A process for the preparation of caprolactam is provided, wherein a) a mixture (I) containing 6-aminocapronitrile and water is reacted in the gas phase, in the presence of a catalyst, to give a mixture (II) containing caprolactam, ammonia, water, high-boil...
01/27/2004
6677449Preparation of caprolactam
A process for the preparation of caprolactam is provided, wherein a) a mixture (I) containing 6-aminocapronitrile and water is reacted in the liquid phase, in the presence of a catalyst, to give a mixture (II) containing caprolactam, ammonia, water, high-b...
01/13/2004
6677448Method for reactivating a catalyst for cyclizing hydrolysis of an aminonitrile into a lactam and use of the regenerated catalyst for making lactams
The present invention relates to a process for regenerating a catalyst for the cyclizing hydrolysis of an aminonitrile for the manufacture of lactams. It relates more particularly to the regeneration of the solid catalysts used in the processes for produc...
01/13/2004
6660857Process for the preparation of &3xb5;-caprolactam
A process for the preparation of &3xb5;-caprolactam starting from 6-aminocaproic acid, 6-aminocaproamide, 6-aminocaproic ester, 6-aminocapronitrile, oligomers or polymers of these compounds or mixtures comprising at least two of these compounds, which pro...
12/09/2003
6593322Compounds and methods for modulation of estrogen receptors
Compounds that modulate the estrogen receptor (ER) are disclosed, as well as pharmaceutical compositions containing the same. In a specific embodiment, the compounds are selective for ER-ଲ over ER-଱. Methods are disclosed for modulating ER-&#x...
07/15/2003
6489474Process for producing amide compound
Object of the present invention is to provide a process for producing an amide compound with high efficiency by subjecting an oxime compound to Beckmann rearrangement in a liquid phase under mild reaction conditions. Namely, the invention relates to a pro...
12/03/2002
6437089Process for the production of nylon 6
Process for making nylon 6 in which a feed stream containing a major portion of caprolactam and/or nylon 6 prepolymer and a minor portion of aminocapronitrile is fed to a multistage reactive distillation column in which the feed stream flows countercurren...
08/20/2002
6407230Method for producing lactams using oligophosphate catalysts
A process for preparing lactams by hydrolytic cyclization of aminonitriles in the gas phase in the presence of a metal phosphate catalyst comprises using a catalyst comprising one or more oligophosphates of the general formula (I) M (POa)b...
06/18/2002
6362333Method for simultaneously producing a cyclic lactam and a cyclic amine
A cyclic lactam and a cyclic amine are coproduced by coreacting an aliphatic alpha, omega-diamine and an aliphatic alpha, omega-aminonitrile with water in the gas phase in the presence of a heterogeneous catalyst....
03/26/2002
6353101Method for producing lactams
The invention relates to a process for preparing lactams by cyclizing hydrolysis of amino nitriles with water in the gas phase on catalysts which comprise oxides or mixed oxides of the metals of groups 3, 4, 5, 13 and/or 14 of the Periodic Table, where ap...
03/05/2002
6331624Process for preparing 6-aminocaproamide
A process for the production of 6-aminocaproamide comprising reacting 5-cyanovaleramide with hydrogen in the presence of a metal catalyst. The 6-aminocaproamide is useful, for example, in the production of caprolactam and nylon 6....
12/18/2001
6281227Sulfonic acid sulfonylamino n-(heteroaralkyl)-azaheterocyclylamide compounds
The compounds of formula I herein exhibit useful pharmacological activity and accordingly are incorporated into pharmaceutical compositions and used in the treatment of patients suffering from certain medical disorders. More specifically, they are inhibit...
08/28/2001
6262259Method for preparing lactam
The present invention includes a process for the preparation of a lactam by vapor phase reaction of an aliphatic aminonitrile with water in the presence of a solid catalyst, wherein the catalyst is an alumina having a specific surface, measured by the BET...
07/17/2001
6222033Method for producing cyclic lactams
The disclosure is a process for preparing cyclic lactams of the formula I: ##STR1## where R1 is hydrogen, alkyl, cycloalkyl or aryl, and A is C3 -C12 -alkylene unsubstituted or substituted by 1, 2, 3, 4, 5 or 6 substituents sel...
04/24/2001
6218535Caprolactam production process
Cyclic lactams are prepared by reacting aminocarbonitriles with water in the liquid phase in a fixed bed reactor in the presence of a catalyst which comprises a catalytically active oxide, which has no soluble constituents under the reaction conditions an...
04/17/2001
6194572Process to prepare &3xb5;-caprolactam
Process to prepare &3xb5;-caprolactam by treating 6-aminocaproic acid, 6-aminocaproate ester or 6-aminocaproamide or mixtures comprising at least two of these compounds in the presence of superheated steam in which a gaseous mixture comprising &3xb5;-capr...
02/27/2001
6100396Method for purifying lactams
A method for purifying lactams by liquid-liquid extraction and/or processing with an ion exchange resin is disclosed. The method is useful for purifying lactams produced by the cyclising vapour-phase hydrolysis of an aliphatic aminonitrile, and comprises ...
08/08/2000
5874575Preparation of caprolactam
An improved process for the preparation of caprolactam by heating 6-aminocapronitrile in the presence of a heterogenous catalyst and water under superatmospheric pressure without rapid deactivation of the catalysts used. The process further includes the a...
02/23/1999
5739324Preparation of caprolactam
A process for preparing cyclic lactams by reacting amino carbonitriles with water in liquid phase in the presence of heterogeneous catalysts based on titanium dioxide, zirconium oxide, cerium oxide and aluminum oxide....
04/14/1998
5723603Process for the preparation of lactams
The present invention relates to a process for the preparation of lactams from dinitriles. It consists more precisely of a process for the preparation of lactam, linking two stages in series, one of hemihydrogenation of dinitrile to aminonitrile, the othe...
03/03/1998
5717090Simultaneous preparation of caprolactam and hexamethylenediamine
Caprolactam and hexamethylenediamine are prepared simultaneously starting from adiponitrile by a process in which (a) adiponitrile is partially hydrogenated to give a mixture containing essentially 6-aminocapronitrile, hexamethylenediamine, ammonia, adipo...
02/10/1998
5693793Preparation of caprolactam from 6-aminocapronitrile
A process for preparing caprolactam by cyclization of 6-aminocapronitrile in the presence of water at elevated temperature and in the presence or absence of a catalyst and a solvent, comprises a) removing from the cyclization reaction effluent ("reaction efflu...
12/02/1997
1    
 
Sign InRegister
Username  
Password   
forgot password?