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| Number | Title | Issue Date |
| 7291184 | Method of reducing the organic carbon content of production waste water in the course of the preparation of concentrated solutions of anionic organic compounds The present invention relates to a method of reducing the total organic carbon (TOC) content of waste water in the course of the preparation of concentrated solutions or suspensions of anionic organic compounds, which method comprises increasing the concentration of... | 11/06/2007 |
| 6096889 | Process for making high performance dyes An aromatic amino sulfonic acid compound is purified by a process including steps of: (a) dissolving the aromatic amino sulfonic acid compound in aqueous medium having a basic pH; (b) acidifying the aqueous medium with acetic acid to precipitate the aroma... | 08/01/2000 |
| 5780510 | 2,4-disulfo phenyl butyl nitrone, its salts and their use as pharmaceuticals 2,4-disulfonyl -phenyl-tert-butyl nitrone and its pharmaceutically acceptable salts are disclosed. These materials are useful as pharmaceutical agents for oral or parenteral, e.g. intravenous administration to patients suffering from acute central ... | 07/14/1998 |
| 5623088 | Method of preparing 4-aminodiphenylamine A method of producing 4-ADPA is disclosed wherein aniline or substituted aniline derivatives and nitrobenzene are reacted under suitable conditions to produce 4-nitrodiphenylamine or substituted derivatives thereof and/or 4-nitrosodiphenylamine or substit... | 04/22/1997 |
| 5605992 | Emulsion polymerization inhibitor and suspension polymerization method using the agent A suspension polymerization of a polymerizable monomer in the presence of an emulsion polymerization inhibitor is disclosed. The inhibitor is an aromatic series compound having a NO2 group, a SO3 Na group, and a secondary amino group... | 02/25/1997 |
| 5599933 | Surfactant composition and method of making the same The reaction product of: (a) a compound of the formula: ##STR1## wherein X is a member selected from the group consisting of N, O and S; R1 and R2 are independently a straight or branched, saturated or unsaturated non-aromatic h... | 02/04/1997 |
| 5488145 | 2,4-disulfonyl phenyl butyl nitrone, its salts, and their use as pharmaceutical free radical traps 2,4-disulfonyl -phenyl-tert-butyl nitrone and its pharmaceutically acceptable salts are disclosed. These materials are useful as pharmaceutical agents for oral or intravenous administration to patients suffering from acute central nervous system ox... | 01/30/1996 |
| 5475032 | 2,4-disulfonyl phenyl butyl nitrone, its salts, and their use as pharmaceuticals 2,4-disulfonyl -phenyl-tert-butyl nitrone and its pharmaceutically acceptable salts are disclosed. These materials are useful as pharmaceutical agents for oral or parenteral, e.g. intravenous administration to patients suffering from acute central ... | 12/12/1995 |
| 5043435 | Fiber-reactive benzotriazolyl-phenyl diazonium compounds suitable as diazo compounds for the preparation of azo dyes, and process for preparing them Diazonium compounds are disclosed which correspond to the formula ##STR1## in which Y' is vinyl, ଲ-hydroxyethyl of an ethyl group having a substituent in the ଲ-position which is eliminated by means of alkali, R is hydrogen, hydroxy, alkyl... | 08/27/1991 |
| 3947407 | Fibre-reactive dyestuffs The invention relates to reactive dyestuffs containing as reactive group a radical of the formula ##EQU1## wherein R1 is hydrogen, C1 -C5 -alkyl, C1 -C5 -alkyl substituted by chlorine, bromine, ... | 03/30/1976 |
