Class / Patent application number | Description | Number of patent applications / Date published |
562101000 | Plural sulfonate groups attached indirectly to each other by acyclic nonionic bonding | 12 |
20100234636 | Novel Salts of the Active Substance Rasagiline - The invention relates to novel salts of the active substance rasagiline. The salts show excellent processability even after prolonged storage and an excellent storage stability usually superior to known salts after being processed into tablets. | 09-16-2010 |
20110021813 | PHARMACEUTICAL DRUG CANDIDATES AND METHODS FOR PREPARATION THEREOF - The present invention is directed to methods of preparation of sulfonate derivatized compounds, e.g., 3-amino-1-propanesulfonic acid and 1,3-propanedisulfonic acid disodium salt with increased purity, with reduced potential for toxic by-products, and that are pharmaceutically useful, e.g., for the treatment of amyloidosis. | 01-27-2011 |
20120078008 | Process for Reducing Inorganics from and Concentrating Anionic Surfactant Solutions - A process including contacting one or more Strecker sulfonation reaction products of one or more halogenated alkyl ethers in the presence of sulfite with one or more polar water soluble organic solvents selected from acetone, methyl ethyl ketone, the C | 03-29-2012 |
20140179948 | METHOD FOR PRODUCING ORGANIC COMPOUND HAVING SULFO GROUP, METHOD FOR PRODUCING LIQUID COMPOSITION, AND METHOD FOR HYDROLYZING ORGANIC COMPOUND HAVING FLUOROSULFONYL GROUP - To provide a method for producing an organic compound having a sulfo group by efficiently hydrolyzing an organic compound having a fluorosulfonyl group with a small number of steps with a small quantity of waste liquid. | 06-26-2014 |
20150353484 | Method for preparing methanedisulfonic acid - Disclosed is a method for preparing methanedisulfonic acid, comprising an acidification, wherein the acidification comprises that methanedisulfonate reacts with an acidifier to form a mixture containing methanedisulfonic acid. The disclosure has high yield, low cost, and the process are environmental friendly. | 12-10-2015 |
562102000 | Nitrogen or -C(=X)-, wherein X is chalcogen, attached indirectly to the sulfonate groups by nonionic bonding | 7 |
20090203935 | MODIFIED ALKOXYLATED POLYOL COMPOUNDS - A modified polyol compound having alkoxylation and having at least one anionic capping unit, uses of the modified polyol compound having alkoxylation and having at least one anionic capping unit and cleaning compositions comprising the same. | 08-13-2009 |
20100292505 | Sulfanyl Derivatives And Their Use As Synthesis Intermediates - The present application relates to sulfanyl derivatives of formula (I) and to their use as synthesis intermediates, especially for the preparation of the pharmaceutically active compound mesna. Formula (I), wherein X is O or N—C(NH)NH | 11-18-2010 |
20110087048 | POLYMERIZABLE SULFONATE IONIC LIQUIDS AND LIQUID POLYMERS THEREFROM AND METHODS OF MAKING SAME - Disclosed is a new ionic liquid monomer salt and methods of is synthesis and polymerization. The ionic liquid monomer salt is prepared by mixing equimolar amounts of an amine, such as tris[2-(2-methoxyethoxy)-ethyl]amine and an acid functionalized polymerizable monomer, such as 2-acrylamido-2-methyl-1-propanesulfonic acid (AMPS), which is stirred at ambient temperature until salt formation is complete. Also disclosed is a new ionic liquid polymer salts and method for making the same. The synthesis of AMPS-ammonium salt polymer is accomplished by adding 2,2′-azobisisobutyronitrile (AIBN) to the ionic liquid monomer salt and heating the homogeneous melt at 70° C. for 18 hr. | 04-14-2011 |
20110137076 | Biological Buffers with Wide Buffering Ranges - Amines and amine derivatives that improve the buffering range, and/or reduce the chelation and other negative interactions of the buffer and the system to be buffered. The reaction of amines or polyamines with various molecules to form polyamines with differing pKa's will extend the buffering range, derivatives that result in polyamines that have the same pKa yields a greater buffering capacity. Derivatives that result in zwitterionic buffers improve yield by allowing a greater range of stability. | 06-09-2011 |
20130231500 | METHOD FOR THE PREPARATION OF (3S, 3S') 4,4'-DISULFANEDIYLBIS (3-AMINOBUTANE 1-SULFONIC ACID) - The present invention relates to a new method for the preparation of (3S,3S′) 4,4′-disulfanediylbis(3-aminobutane 1-sulfonic acid) in five steps from (S)-ethyl 2-(benzyloxycarbonylamino)-4-(neopentyloxysulfonyl)butanoate A. | 09-05-2013 |
20150299113 | Cyclic process for the production of taurine from alkali isethionate and alkali vinyl sulfonate - The present invention discloses a cyclic process for the production of taurine from alkali isethionate and alkali vinyl sulfonate in a high overall yield of greater than 95% by continuously converting the byproducts of the ammonolysis reaction, sodium ditaurinate and sodium tritaurinate, to sodium taurinate. Pure sodium ditaurinate and sodium tritaurinate are prepared from diethanolamine and triethanolamine as starting materials, respectively, and are subjected to the ammonolysis reaction to yield a mixture of sodium taurinate, sodium ditaurinate, and sodium tritaurinate. | 10-22-2015 |
20160046571 | METHOD FOR THE PREPARATION OF (3S,3S') 4,4'-DISULFANEDIYLBIS (3-AMINOBUTANE 1-SULFONIC ACID) - The present invention relates to a new method for the preparation of (3S,3S′) 4,4′-disulfanediylbis(3-aminobutane 1-sulfonic acid) in five steps from (S)-ethyl 2-(benzyloxycarbonylamino)-4-(neopentyloxysulfonyl)butanoate A. | 02-18-2016 |