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SRM Chemical, Ltd. Co. Patents
Assignee:
SRM Chemical, Ltd. Co.
Address:
League City, TX
No. of patents:
10
Patents:












Patent Number Title Of Patent Date Issued
6137009 Method of manufacturing flumetralin October 24, 2000
The invention is a process to manufacture the intermediate secondary amine N-ethyl-2-chloro-6-fluoro-benzylamine, and then the process of reacting this intermediate to manufacture the herbicide flumetralin. Equimolar quantities of monoethylamine, sodium hydroxide, and 2-chloro-6-fluo
6018079 Process for removing N-nitroso compounds from organo-amine compositions including dinitroaniline January 25, 2000
A simple and inexpensive process is described for reducing the concentration of N-nitroso-containing compounds in compositions comprising N-nitroso-containing compounds and other desired compounds wherein the N-nitroso-containing compounds thermally decompose at a temperature below t
5922915 Process for removing N-nitroso compounds from organo-amine compositions including dinitroaniline July 13, 1999
A simple and inexpensive process is described for reducing the concentration of N-nitroso-containing compounds. The process is applicable for compositions comprising N-nitroso-containing compounds and other desired compounds wherein the N-nitroso-containing compounds thermally decomp
5922913 Process for nitrating aromatic amines July 13, 1999
Disclosed is a process of nitrating or dinitrating an aromatic amine compound that involves reacting the aromatic amine and nitric acid in the presence of acetic acid such that the molar ratio of the aromatic amine compound to acetic acid is from about 1:2 to about 1:16, and the molar
5777168 Process for producing N-alkyl-dinitroalkylanilines July 7, 1998
This invention relates to a process for producing N-alkyl-dinitroalkylaniline and particularly N-sec-butyl-4-tert-butyl-2,6-dinitroaniline by methylation of an alkylphenol followed by a one or two stage dinitration of the resulting alkylanisole which is followed by reaction with an a
5770545 A2,6-dinitroaniline herbicide June 23, 1998
This invention relates to pendralin [2,6-dinitro-N-(1-ethylpropyl)-4-tert-butylaniline], preemergence and postemergence herbicidal methods and herbicidal compositions employing pendralin.
5728881 Process for preparing trifluralin March 17, 1998
A process is provided for preparing 2,6-dinitro-N,N-dipropyl-4-(trifluoromethyl)benzenamine from 4-chlorotrifluoromethylbenzene. The process includes a two stage nitration and an amination step. Ethylene dichloride is utilized as a diluent and solvent in the nitration steps. Spent ac
5705698 Process for the production of pendimethalin and iso-pendimethalin January 6, 1998
A process is provided for the preparation of isometrically pure pendimethalin and iso-pendimethalin as well as mixtures thereof.
5689006 Process for producing n-alkyl-dinitroalkylanilines November 18, 1997
This invention relates to a process for producing N-alkyl-dinitroalkylaniline and particularly N-sec-butyl-4-tert-butyl-2,6-dinitroaniline by methylation of an alkylphenol followed by nitration of the resulting alkylanisole which is followed by reaction with an amine.
5663441 Production of mono-N-alkyl-dinitroalkylanilines and N-alkyl-dinitroaniline derivatives September 2, 1997
This invention relates to a process for producing mono- and di- N-alkyl-dinitroalkylaniline or dinitroaniline derivative and particularly N-sec-butyl-4-tert-butyl-2,6-dinitroaniline by methylation of an alkylphenol or phenol derivative followed by nitration of the resulting acetic ac

 
 
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