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

Icon_funbox Bizarre Patents

Patent No. 6718554

Hands free towel carrying system

A hands free towel carrying system for coupling a towel to a user to prevent loss, theft or contamination.

Newsletter  PatentStorm News

Make the Most of PatentStorm

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest patents by subscribing to an RSS feed.

Got questions? Ask a Patent Expert!

Registered users: Manage your profile, comments and alerts.

 

Class 570/191 - Preparing acyclic haloalkyl group containing compound


Subclass of Class 570 - Organic compounds -- part of the class 532-570 series
Definition: Process of preparing a benzene ring containing compound
No. of patents: 60
Last issue date: 05/27/2008


1    
NumberTitleIssue Date
7378449Poly(bromoaryl)alkane additives and methods for their preparation and use
An additive mixture useful as a flame retardant is described. The mixture is comprised of (i) a poly(bromophenyl)alkane having in the molecule in the range of 13 to 60 carbon atoms and in the range of two to four aryl groups and (ii) a poly(bromophenyl)bromoalkane h...
05/27/2008
7304192Method for producing chlorinated hydrocarbon having chlorinated tertiary carbon
The present invention relates to a simple method for efficiently producing aromatic-substituted chlorinated hydrocarbons, for example, high-purity cumyl chloride (1,4-bis(1-chloro-1-methylethyl)benzene, p-DCC) that can be used as an initiator for cationic polymeriza...
12/04/2007
7271302Method for brominating organic compounds
The present invention relates to processes for the bromination of organic compounds, and to bromination microreactors for carrying out these processes. ...
09/18/2007
7129385Poly(bromoaryl)alkane additives and methods for their preparation and use
An additive mixture useful as a flame retardant is described. The mixture is comprised of (i) a poly(bromophenyl)alkane having in the molecule in the range of 13 to 60 carbon atoms and in the range of two to four aryl groups and (ii) a poly(bromophenyl)bromoalkane h...
10/31/2006
7109387Production of α-chloroisopropyl-substituted aromatics
α-Chloroisopropyl-substituted aromatics are obtained in high yield by treating isopropenyl-substituted aromatics with hydrogen chloride gas in the absence of a solvent. The α-chloroisopropyl-substituted aromatics serve as initiators for the cationic polymerization...
09/19/2006
7094934Production process of hydrofluorocarbons
In a process for producing a hydrogen-containing fluorinated hydrocarbon in which a halogenated hydrocarbon reaction raw material, which includes a chlorinated alkene and/or a hydrogen-containing chlorinated alkane, is subjected to a fluorination reaction with hydro...
08/22/2006
7060862Method for the preparation of α,α,α′,α′-tetrachloro-p-xylene with high purity
A method of synthesizing a high purity product of α,α,α′,α′-tetrachloro-p-xylene is disclosed. The method includes carrying out a first stage reaction of terephthaldicarboxaldehyde with a mixture of SOCl2 and dimethylformamide (DMF) to obtain a pr...
06/13/2006
6992231Method for the preparation of α,α, α′,α′-tetrachloro-p-xylene
A synthesis method of α,α,α′,α′-tetrachloro-p-xylene is disclosed. The method includes reacting terephthaldicarboxaldehyde with a mixture of SOCl2 and dimethylformamide (DMF) to obtain a product mixture containing α,α,α′,α′-tetrachloro-p-x...
01/31/2006
6946559Method of converting functional group through halogen-metal exchange reaction
A method by which a halogen atom of a halogen compound can be efficiently replaced with an electrophilic group. Also provided are: a reagent for converting a functional group through a halogen-metal exchange reaction, characterized by comprising either a mixt...
09/20/2005
6933417Process for vinyl chloride manufacture from ethane and ethylene with partial CHl recovery from reactor effluent
A process for producing vinyl chloride monomer from ethylene and ethane having input of significant quantities of both ethane and ethylene in input streams to the affiliated reactor where hydrogen chloride in the reactor effluent is only partially recovered from the...
08/23/2005
6909024Process for the conversion of ethylene to vinyl chloride and novel catalyst compositions useful for such process
This invention is a process for producing vinyl chloride from an ethylene-containing feed, oxygen, and a chlorine source in the presence of a catalyst. The process permits direct production of vinyl chloride in a single reactor system, and further permits ethane to ...
06/21/2005
6861566Process for producing 1-chloro-4-arylbutane
There is provided an industrially advantageous process for producing a 1-chloro-4-arylbutane represented by the general formula (2): wherein R represents hydrogen, lower alkyl, or lower alkoxy, characterized by reactin...
03/01/2005
6774270Method of removing hexafluoropropylene dimers
A method of removing hexafluoropropylene dimers (“HFP dimers”), dimer hydrides and other oligomers from a fluid is described. The method comprises heating the fluid to isomerize the HFP dimers to the thermodynamic isomer, and contacting the fluid with a tertiary...
08/10/2004
6756513Process for preparing monochlorinated hydrocarbons having a high isomeric purity
Monochlorinated hydrocarbons of high isomeric purity are prepared by a process, which comprises: reacting a monoalcohol having an alkyl radical having from 3 to 20 carbon atoms with cyanuric chloride; and purifying the resulting monochlorinated hydroca...
06/29/2004
6407298Process for the preparation of (p-chlorophenyl)propanol derivatives
A process for the preparation of an alcohol compound (1), characterized by subjecting p-iodochlorobenzene to Pd coupling with allyl alcohol in the presence of tetramethylammonium chloride, followed by reduction, and a process for the preparation of a comp...
06/18/2002
6300532Process for addition of haloalkanes to alkenes catalyzed by an organophosphite compound
A process for catalytic addition of haloalkanes to alkenes involving the step of reacting the haloalkane with the alkene in the presence of a catalyst. The catalyst is an organophosphite compound represented by the following formula: P(ORa)(OR
10/09/2001
6255545Process for the synthesis of 3,5-bis(trifluoromethyl)-bromobenzene
The present invention is concerned with a novel process for the preparation of 3,5-bis(trifluoromethyl)bromobenzene (CAS 328-70-1). This compound is useful as an intermediate in the synthesis of compounds which possess pharmacological activity....
07/03/2001
6013841Method 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
5710355Method of making chlorobenzenes
Disclosed is a method of making a chlorobenzene having the general formulas ##STR1## where X is Cl or F, and X' is X or CF3. A compound having the formula ##STR2## is sulfonated using at least 2 moles per mole of said compound of a su...
01/20/1998
5672791Process for the preparation of nuclear-halogenated benzotrichlorides from the corresponding benzotrifluorides
Nuclear-halogenated benzotrichlorides are prepared in a particularly advantageous manner from the corresponding nuclear-halogenated benzotrifluorides by reacting nuclear-halogenated benzotrifluorides with silicon tetrachloride in the presence of catalytic...
09/30/1997
5583272Methyl substituted propyl-substituted pentamethyl indane derivatives, processes for producing same and perfumery uses thereof
Described are methyl, substituted propyl-substituted pentamethyl indane derivatives defined according to the structure: ##STR1## wherein R1 represents hydroxyl or methyl; and R2 represents hydrogen, chloro or OR6 ; an...
12/10/1996
5502261Process for preparing 2,2'-bis(halomethyl)-1,1'-binaphthyl
The present invention relates to a process for preparing 2,2'-bis(halomethyl)-1,1'-binaphthyl, by reacting 2,2'-dimethyl-1,1'-binaphthyl in the presence of a solvent with a halogenating agent under the action of light having a wavelength of from 10
03/26/1996
5475170Haloalkylation process
An improvement in a process for the haloalkylation of a first aromatic compound having at least one free ring position with a haloalkylating reagent and in the presence of a haloalkylation catalyst, said process producing a haloalkylated first aromatic co...
12/12/1995
5426255Methyl, substituted propyl-substituted pentamethyl indane derivatives, processes for producing same and perfumery uses thereof
Described are processes for preparing methyl, substituted propyl-substituted pentamethyl indane derivatives using as a starting material the mixture of compounds defined according to the structure: ##STR1## also known as GALAXOLIDE.RTM. (trademark of...
06/20/1995
5420369Chloroalkylation of aromatic compounds
The co-formation of diarylalkane by-product in the chloroalkylation of an aromatic compound with an aldehyde is minimized by conducting the reaction in a continuous manner in a concentration with agitation and in the presence of both hydrogen sulfate and ...
05/30/1995
5162577Process for lithiation of 1,3-bis(trifluoromethyl)benzene
A novel process for the lithiation of 1,3-bis(trifluoro-methyl)benzene in a solvent is described, said process comprising carrying out the lithiation with the lithium salt of an amine of the general formula R1 R2 NH ...
11/10/1992
5157173Process for 4-chlorobenzotrichloride
4-chlorobenzotrichloride was prepared by the chlorination of p-xylene in the vapor phase at a temperature above about 200° C. in the presence of an activated carbon catalyst and water. An approximately 75 percent calculated yield was obtained at 250° C....
10/20/1992
5136114Process for the preparation of geminal diarylalkanes, new geminal diarylalkanes and alk(en)ylated aromatic compounds
The invention relates to a new process for the preparation of geminal diarylalkanes of the formula ##STR1## by Friedel-Crafts alkylation of aromatic compounds with specific aliphatic halogen compounds (addition compounds of CCl4 , to ...
08/04/1992
5113020Process for producing p-halogenobenzophenone derivatives
The present invention provides a process for producing a p-halogenobenzophenone derivative of a high purity in a high yield at a low cost in the presence of a repeatedly usable catalyst having a long life and free from the problem of waste water treatment...
05/12/1992
5099083Process for preparing 3-chloromethylbenzo-cyclobutene
3-chloromethylbenzocyclobutene is prepared by reacting benzocyclobutene with chloromethyl methyl ether in the presence of stannic chloride at a temperature of about -120° C. to about -40° C. and neutralizing the resulting reaction mixture comprising ...
03/24/1992
4956055Preparation of bidentate ligands
A process is disclosed for preparing bidentate ligands of the formula: ##STR1## wherein: each Ar is independently selected from aromatic ring compounds having 6 up to 14 carbon atoms, e.g., phenyl, naphthyl, phenanthryl and anthracenyl; the x bonds a...
09/11/1990
4954227Preparation of bidentate ligands
A process is disclosed for preparing bidentate ligands of the formula: ##STR1## wherein: each AR is independently selected from aromatic ring compounds having 6 up to 14 carbon atoms, e.g., phenyl, naphthyl, phenanthryl and anthracenyl; the x bonds a...
09/04/1990
4879416Preparation of bidentate ligands
The process for preparing a bidentate ligand comprising the steps, (1) contacting with ozone under ozonolysis conditions a suspension in a hydroxylic reaction medium of phenanthrene or a phenanthrene derivative to form an ozonated intermediate, (2) contacting ...
11/07/1989
4879008Preparation of bidentate ligands
A process is disclosed for preparing bidentate ligands of the formula: ##STR1## wherein: each Ar is independently selected from aromatic ring compounds having 6 up to 14 carbon atoms, e.g., phenyl, naphthyl, phenanthryl and anthracenyl; the x bonds a...
11/07/1989
4855517Process for preparing aromatic bromine compounds
Aromatic bromine compounds are prepared by reacting aromatic nitro compounds with elemental bromine in the gas phase at temperatures between about 310° to 550° C. In this reaction, the nitro groups are selectively replaced by bromine; further brominatio...
08/08/1989
4769503Preparation of 3,4-dichlorobenzotrihalides
A process for the preparation of 3,4-dichlorobenzotrihalides of the formula I ##STR1## where X is fluorine or chlorine, by reacting the corresponding 4-monochlorobenzotrihalides with chlorine gas in the presence of a catalytic amount of a Lewis ...
09/06/1988
4767885Sterically hindered binifers telechelic polymers made therefrom
Sterically hindered binifers are made as well as utilized to produce telechelic polyisobutylenes. The telechelic polymers can be produced at high temperatures, for example minus 30° C....
08/30/1988
4622431Method for converting organic chloroformate to the corresponding organic chloride
Organic chloroformate compounds are decomposed to their corresponding chlorides by heating the chloroformate, e.g., between 100° and 175° C., in the presence of a catalytic amount of solid poly(vinylpyridine), e.g., poly(4-vinylpyridine), for a time suf...
11/11/1986
4575565Process for preparing substituted benzotrichlorides
The invention herein pertains to a novel process for making substituted benzotrifluorides....
03/11/1986
4560814Process for alkylating halogenated and trifluoromethylated benzene compounds
Disclosed is a process for alkylating halogenated and trifluoromethylated benzene compounds. In that process, an alkyl halide is reacted with a benzene compound having two or three substituents selected from the group consisting of the halogens and the tr...
12/24/1985
1    
 
Forgot password?
Register here