Abstract: The present invention relates to a process for manufacturing of anhydrous methanesulfonic acid (MSA) and to methanesulfonic acid manufactured by said process and its uses.
Type:
Grant
Filed:
April 14, 2020
Date of Patent:
April 8, 2025
Assignee:
BASF SE
Inventors:
Frieder Borgmeier, Frank Piepenbreier, Andreas Kempter
Abstract: Compound are described comprising a perfluorinated group bonded to at least one terminal photoinitiator group with an organic linking group comprising at least one amide moiety. The compound typically comprises the (e.g. Michael addition) reaction product of i) a compound comprising an acryl group and a photoinitiator group; and ii) an amino functional perfluorinated compound. Also described is a composition comprising at least one free-radically polymerizable (e.g. fluorinated) monomer, oligomer, or combination thereof; and the described fluorinated photoinitiator compound and methods.
Type:
Grant
Filed:
April 22, 2021
Date of Patent:
March 11, 2025
Assignee:
3M Innovative Properties Company
Inventors:
Thomas P. Klun, Brandon R. Pietz, Paul J. Homnick, Christopher S. Lyons, Chad M. Amb
Abstract: The present invention is directed to methods for the asymmetric synthesis of esketamine. The present invention is further directed to key intermediates in the asymmetric esketamine synthesis. In one embodiment, the invention is an asymmetric synthesis of esketamine comprising the conversion of (S)-2?-chloro-2-methoxy-3,4,5,6-5 tetrahydro-[1, 1?-biphenyl]-3-yl carbamate to (S)-2?-chloro-1-isocyanato-6-methoxy-1,2,3,4-tetrahydro-1,1?-biphenyl.
Abstract: Methods for preparing crystalline L-glufosinate ammonium monohydrate are disclosed. The methods include forming a mixture comprising water, a water-miscible organic solvent, ammonium hydroxide, and a glufosinate starting material containing L-glufosinate ammonium and D-glufosinate ammonium. L-Glufosinate ammonium monohydrate is crystallized and separated from the mixture, providing L-glufosinate ammonium monohydrate Form B. Compositions and methods employing the crystalline L-glufosinate ammonium monohydrate are also described.
Type:
Grant
Filed:
April 15, 2020
Date of Patent:
February 25, 2025
Assignee:
BASF SE
Inventors:
Brian Michael Green, Rachel Melissa Witek, Nadejda Pavlova, Matthew Richard Oberholzer
Abstract: Process for the production of a peroxyester involving the reaction of an anhydride with an organic hydroperoxide, separation of the formed carboxylic acid, production of an anhydride from said carboxylic acid, and recycling of the anhydride within the process.
Abstract: The present disclosure is directed to novel derivatives of terpenes, particularly derivatives of terpene alcohols, and methods of making them, compositions comprising them, and methods for using them.
Abstract: A method for obtaining a salt with a general formula: RxNI, wherein: RxN is an organic cation (RxN+), R represents substituents (R—) independently selected from a group consisting of organic substituents: R1—, R2—, R3— and hydrogen (H—), x is a number of the substituents R— directly linked with the nitrogen (N) atom in the organic cation RxN+, wherein x is 3 or 4, I is an iodide anion (I?). The method comprises: preparing a reaction mixture comprising the steps of: synthesizing hydrogen iodide (HI) in situ by mixing molecular iodine (I2) with formic acid (COOH) in a molar ratio of molecular iodine (I2): formic acid (COOH) of no less than 1.01:1, in a solvent medium, introducing into the solvent medium a compound being a donor of organic cation RxN+ in an amount providing the molar ratio of the donor of organic cation RxN+: molecular iodine (I2) of no less than 1.01:1, and maintaining the reaction mixture at a temperature of not less than 20° C.
Type:
Grant
Filed:
June 1, 2020
Date of Patent:
January 21, 2025
Assignee:
SAULE S.A.
Inventors:
Kasjan Misztal, Konrad Wojciechowski, Olga Malinkiewicz, Zbigniew Miara
Abstract: The invention relates to a fatty amide which is a di- or triamide based on a polyether diamine or triamine which can be used as organogelator and in particular as rheology additive, said amide comprising a specific mixture of hydroxylated fatty acids and short hydroxylated acids. The invention also relates to a formulation composition using said fatty amide as rheology additive and to its use with this aim in coating, adhesive or PVC plastisol compositions and in particular transparent or non-transparent mastic compositions. Said rheology additive has the advantage of not needing a specific activation process before use, in contrast to the other known fatty amide additives based on hydrogenated castor oil derivatives.
Type:
Grant
Filed:
March 27, 2020
Date of Patent:
January 14, 2025
Assignee:
Arkema France
Inventors:
Dmitri Colesnic, Vincent Leroy, Laurent Lepinay
Abstract: A lyophilisate of treosulfan is described which possesses favourable characteristics in terms of a short reconstitution time and a high purity and stability and which is particularly useful in the treatment of cancer and for conditioning therapy before transplantation of bone marrow or blood stem cells.
Type:
Grant
Filed:
September 25, 2019
Date of Patent:
December 31, 2024
Assignee:
Medac Gesellschaft Für Klinische Spezialpräparate MBH
Abstract: A composition including a N-[4-[[4-(diethyl amino) phenyl](2,5-disulfophenyl)methylene]-2,5-cyclohexadien-1-ylidene]-N-ethylethanaminium sodium salt, where the N-4-4-(diethylamino)phenyl (2,5-disulfophenyl)methylene-2,5-cyclohexadien-1-ylidene-N-ethylethanaminium sodium salt is at least 90% of the weight of such composition. A method of making the composition by a process including sulphonating 2-chlorobenzaldehyde, treatment with sodium sulphite and subsequent basification, a condensation step, an oxidation step and a purification step comprising utilizing HPLC to monitor the sulphonating step, the treatment step, the condensation step, and/or the oxidation step, to determine when one or more reactions of such sulphonating step, treatment step, condensation step, and/or oxidation step are substantially complete and ending such one or more reactions on the basis of the HPLC monitoring.
Abstract: Improvements in catalyst systems and associated processes for the conversion of glycolaldehyde to monoethanolamine are disclosed. The catalyst systems exhibit improved selectivity to this desired product and consequently reduced selectivity to byproducts such as diethanolamine and ethylene glycol. These beneficial effects are achieved through the use of acids, and particularly Lewis acids, as co-catalysts of the reductive amination reaction, in conjunction with a hydrogenation catalyst.
Abstract: An integrated, co-product capable process is provided for producing taurine in particular with optionally one or both of monoethanolamine and diethanolamine from one or more sugars, comprising pyrolyzing one or more sugars to produce a crude pyrolysis product mixture including glycolaldehyde and formaldehyde; optionally removing formaldehyde from the crude pyrolysis product mixture, then combining the crude pyrolysis product mixture with an aminating agent in the presence of hydrogen and further in the presence of a catalyst to produce at least monoethanolamine from the crude pyrolysis product mixture; optionally recovering diethanolamine from the crude reductive amination product, sulfating at least a portion to all of the monoethanolamine product to produce 2-aminoethyl hydrogen sulfate ester; and sulfonating the 2-aminoethyl hydrogen sulfate ester to produce taurine.
Abstract: The present invention relates to a method for recycling and/or disposal of halocarbons, particularly fluorinated alkanes, such as trifluoromethane, by reacting said halocarbons with sulfur trioxide, particularly to form halide sulfonic acids and sulfur dioxide.
Type:
Grant
Filed:
December 5, 2019
Date of Patent:
October 15, 2024
Assignee:
LTS LOHMANN THERAPIE-SYSTEME AG
Inventors:
Timo Ott, Christian Diaz-Urrutia, Matthias Vogt
Abstract: The present invention relates to a process for preparing a surfactant composition based on glycine betaine ester salt, and to the composition thus obtained. The invention also relates to the uses of said composition. A subject of the invention is also a product comprising the abovementioned composition.
Type:
Grant
Filed:
November 25, 2019
Date of Patent:
September 10, 2024
Assignee:
SURFACTGREEN
Inventors:
Freddy Pessel, Francis Galle, Pierre-Yves Divet, Xavier Roussel
Abstract: The present invention describes a selective glycerol oxidation process comprising a set of steps. In the first step, a glycerol-containing raw material and an oxidizing agent are fed into a reaction vessel containing an iron oxide-containing catalyst. Subsequently, the glycerol-containing raw material, the oxidizing agent, and said iron oxide-containing catalyst are brought into contact at a temperature in the range of 100 to 350° C., wherein the glycerol-oxidation reaction occurs.
Type:
Grant
Filed:
November 12, 2019
Date of Patent:
August 27, 2024
Assignees:
PETRÓLEO BRASILEIRO S.A.—PETROBRAS, UNIVERSIDADE FEDERAL DE MINAS GERAIS—UFMG
Inventors:
Marcio De Figueiredo Portilho, Victor Augusto Araujo De Freitas, Luiz Carlos Alves De Oliveira
Abstract: A calcium carboxylate is prepared by reacting water, calcium oxide, and a compound of formula (I): wherein R is a C1-C3 alkyl and R1 is a C1 or C2 alkyl. The reaction solution is heated to remove an amount of a co-product from the reaction solution. The calcium carboxylate may be recovered in a solid form from the reaction solution.
Type:
Grant
Filed:
September 1, 2023
Date of Patent:
August 27, 2024
Assignee:
NIACET CORPORATION
Inventors:
Kelly Brannen, David J. Harrigan, Donal S. Tunks, Stanley A. Sojka
Abstract: The present invention relates to a 6-hydroxy-3-hexenyl alkoxymethyl ether compound of the following general formula (1): HOCH2CH2CH=CHCH2CH2OCH2OCH2R1 (1), R1 representing a hydrogen atom, an n-alkyl group having 1 to 9 carbon atoms, or a phenyl group; and also relates to a process for preparing a 3,13-octadecadien-1-ol compound of the following formula (6): CH3(CH2)3CH—CH(CH2)8CH?CHCH2CH2OH (6) from the 6-hydroxy-3-hexenyl alkoxymethyl ether compound (1).
Abstract: The objective of the present invention is to provide a method for producing an isocyanate compound safely and efficiently. The method for producing an isocyanate compound according to the present invention is characterized in comprising the steps of irradiating a high energy light to a halogenated methane at a temperature of 15° C. or lower in the presence of oxygen, and further adding a primary amine compound to be reacted without irradiating a high energy light.
Type:
Grant
Filed:
November 14, 2019
Date of Patent:
August 13, 2024
Assignees:
NATIONAL UNIVERSITY CORPORATION KOBE UNIVERSITY, AGC INC.
Abstract: The present invention pertains to novel thiocycloheptyne derivatives of general formula (I): and in particular to thiacycloalkynesulfoimine derivatives and their synthesis. The invention also relates to the use of the novel thiocycloheptyne derivatives in coupling reactions with linkers and drugs. The invention further relates to the use of the novel thiocycloheptynes in bioorthogonal (copper-free) click reactions. The invention further pertains to the use of the novel thiocycloheptyne derivatives in the generation of advanced multifunctional drug delivery systems (drug-loaded) nanoparticles.
Type:
Grant
Filed:
July 12, 2019
Date of Patent:
August 6, 2024
Assignee:
Cristal Delivery B.V.
Inventors:
Josephus Johannes Weterings, Cristianne Johanna Ferdinand Rijcken