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Class Information
Number: 564/296
Name: Organic compounds -- part of the class 532-570 series > Organic compounds (class 532, subclass 1) > Amino nitrogen containing (e.g., urea, sulfonamides, nitrosamines, oxyamines, etc., and salts thereof) > Quaternary ammonium containing > Acyclic > Processes
Description: Processes for the preparation, purification, separation, or recovery of quaternary ammonium compounds classifiable only in that subclass.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7342136 |
Process of making long chain internal fatty tertiary amines |
Mar. 11, 2008 |
| 7326814 |
Minimization of volatile organic sulphur byproducts in dimethyl sulfate quaternization of amines made with hypophorous acid |
Feb. 5, 2008 |
| 7268256 |
Method of purifying quaternary alkyl ammonium salt and quaternary alkyl ammonium salt |
Sep. 11, 2007 |
| 7183434 |
Process for the continuous quaternization of tertiary amines with an alkyl halide |
Feb. 27, 2007 |
| 7105631 |
Preparation of alkylated N- or amino, ammonium or spirobicyclic ammonium group-containing, crosslinked polymers |
Sep. 12, 2006 |
| 7005548 |
Process for preparing quaternary ammonium tribromides |
Feb. 28, 2006 |
| 6992222 |
Process for the preparation of quaternary salt phenolate solutions |
Jan. 31, 2006 |
| 6967258 |
Production of quaternary ammonium salt of hydroxycarboxylic acid and quaternary ammonium salt of inorganic acid |
Nov. 22, 2005 |
| 6900313 |
Chiral ionic liquids |
May. 31, 2005 |
| 6794543 |
Method for producing arylpoly(oxalkyl)-benzyldimethyl-ammonium derivatives |
Sep. 21, 2004 |
| 6790985 |
Phosphonium salts and processes for production of and uses for the same, and phosphines deriving the same and processes for production of the phosphines |
Sep. 14, 2004 |
| 6784317 |
Production of quaternary ammonium salt of hydroxycarboxylic acid and quarternary ammonium salt of inorganic acid |
Aug. 31, 2004 |
| 6740781 |
Process for separating reaction mixtures and recycling quaternary salts and bases |
May. 25, 2004 |
| 6734325 |
Process for the separation of reaction mixtures and the recirculation of quaternary salts |
May. 11, 2004 |
| 6586632 |
Preparation of quaternary ammonium compounds |
Jul. 1, 2003 |
| 6583234 |
Process for preparing waterfastness additive |
Jun. 24, 2003 |
| 6576684 |
Thermal- and photoinitiated radical polymerization in the presence of an addition fragmentation agent |
Jun. 10, 2003 |
| 6573405 |
Ionic liquids |
Jun. 3, 2003 |
| 6541649 |
Process for synthesis of novel cationic amphiphiles containing N-hydroxyalkyl group for intracellular delivery of biologically active molecules |
Apr. 1, 2003 |
| 6521782 |
Method for making aqueous solutions of unsaturated quaternary ammonium salts |
Feb. 18, 2003 |
| 6465419 |
Esters derived from alkanolamines, dicarboxylic acids and fatty alcohols and the cationic surfactants obtainable therefrom |
Oct. 15, 2002 |
| 6444846 |
Process for preparing tetrafluoroborate salt and intermediates thereof |
Sep. 3, 2002 |
| 6414191 |
Method for the continuous production of methoxyamine hydrochloride |
Jul. 2, 2002 |
| 6414170 |
Preparation of cationic surfactants containing ester group in molecules |
Jul. 2, 2002 |
| 6379294 |
Process for preparing esterquats |
Apr. 30, 2002 |
| RE37555 |
Process and composition for multicomponent one hundred percent solid fabric softeners |
Feb. 19, 2002 |
| 6333433 |
Process for synthesis of novel cationic amphiphiles containing N-hydroxyalkl group for intracellular delivery of biologically active molecules |
Dec. 25, 2001 |
| 6268534 |
Process for the synthesis of N,N-Dioleyl-N,N-Dimethylammonium Chloride |
Jul. 31, 2001 |
| 6235914 |
Amine and quaternary ammonium compounds made from ketones and aldehydes, and compositions containing them |
May. 22, 2001 |
| 6194606 |
Intermediates |
Feb. 27, 2001 |
| 6087303 |
Quaternary ammonium carboxylate and borate compositions and preparation thereof |
Jul. 11, 2000 |
| 6084131 |
Process for the preparation of protected dihydroxypropyl trialkylammonium salts and derivatives thereof |
Jul. 4, 2000 |
| 6031137 |
Stable aromatic amine composition, a process for preparing color stable aromatic amines, and the production of light colored aromatic amine-based polyether polyols |
Feb. 29, 2000 |
| 5962709 |
Process for the aftertreatment of betaines and amphoteric surfactants |
Oct. 5, 1999 |
| 5929280 |
Process for the preparation of aqueous solutions of tetraalkylammonium hydroxides |
Jul. 27, 1999 |
| 5919980 |
Recovery and reuse of amphoteric surfactants from aqueous solutions |
Jul. 6, 1999 |
| 5880299 |
Esterquats |
Mar. 9, 1999 |
| 5869716 |
Process for the production of esterquats |
Feb. 9, 1999 |
| 5851548 |
Liposomes containing cationic lipids and vitamin D |
Dec. 22, 1998 |
| 5851982 |
Liquid softener compositions and quaternary ammonium salt |
Dec. 22, 1998 |
| 5783534 |
Process for the production of solid esterquats |
Jul. 21, 1998 |
| 5763639 |
Process for producing quarternary glycine nitriles |
Jun. 9, 1998 |
| 5705696 |
Extractive method for the preparation of quaternary salts |
Jan. 6, 1998 |
| 5705663 |
Quaternized triethanolamine difatty acid esters |
Jan. 6, 1998 |
| 5705695 |
Quaternary Zintl composition (Et.sub.4 N).sub.4 [Au(Ag.sub.1-x Au.sub.x).sub.2 Sn.sub.2 Te.sub.9 ] |
Jan. 6, 1998 |
| 5703131 |
Method for the detoxification of mustard gas sulfur-containing quaternary ammonium ionene polymers and their use as microbicides |
Dec. 30, 1997 |
| 5696292 |
Process for producing quarternary ammonium compounds |
Dec. 9, 1997 |
| 5654480 |
Recovery and reuse of surfactants from aqueous solutions |
Aug. 5, 1997 |
| 5639840 |
Fluoride ion releasing dental materials |
Jun. 17, 1997 |
| 5618978 |
Method of producing choline of a high purity |
Apr. 8, 1997 |
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