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Matches 1 - 50 out of 9,739

Document Document Title
WO/2024/040766A1
The present invention provides a preparation method for a diaryl-p-phenylenediamine compound represented by formula (I). The preparation method comprises: performing a condensation dehydrogenation reaction with a compound of formula (II)...  
WO/2024/041961A2
Described is a process for producing nearly enantiomerically pure (1R,2S)-2,6-dimethyl-1-indanamine, said process being characterized by the reaction of a mixture of the four stereoisomers of 2,6-dimethyl-1-indanamine with an acylating o...  
WO/2024/043296A1
An amine separation method comprises a separation step for separating an amine through chromatography using: a stationary phase obtained by supporting, on a carrier, a ligand having a crown ether-like cyclic structure; and a mobile phase...  
WO/2024/042246A1
The present invention relates to a process for the preparation of N-[(Z)-3-(3-chloro-4- cyclohexylphenyl)prop-2-enyl]-N-ethylcyclohexanamine or a salt thereof of the following formula (II).  
WO/2024/041962A1
Described is a process for producing nearly enantiomerically pure (1R,2S)-2,6-dimethyl-1-indanamine, said process being characterized by the reaction of a mixture of the four stereoisomers of 2,6-dimethyl-1-indanamine with an acylating o...  
WO/2024/039293A1
The present disclosure relates to a method of synthesising hexamethylenediamine and adipic acid. The method comprises homocoupling of acrylamide under conditions including using oxalic acid as a reductant and irradiating a reaction mixtu...  
WO/2024/033786A1
Methods for the purification of impure triethylenetetramine into highly pure triethylenetetramine are described. In particular, methods for the preparation of relatively pure salts of triethylenetetramine starting from crude triethylenet...  
WO/2024/030736A1
Processes and facilities for producing several types of recycled content organic chemical compounds from waste plastic. Processing schemes are described herein for converting waste plastic (or hydrocarbon having recycled content derived ...  
WO/2024/027109A1
The present invention relates to a catalyst, a preparation method therefor and use thereof, and belongs to the field of catalysts. The catalyst comprises a metal-based active component and a surface metal oxide active component, wherein ...  
WO/2022/224741A9
[Problem] In hydrogenating an aromatic halonitro compound, to improve the yield of a halogenated aromatic amine that is the target product without requiring a dehalogenation inhibitor, while suppressing the formation of a nitroso compoun...  
WO/2024/021264A1
The present invention relates to an organic electroluminescent device, an organic electroluminescent apparatus and a photoelectric device, and belongs to the technical field of organic electroluminescent apparatuses. The organic electrol...  
WO/2024/023383A1
The invention discloses a method for producing alkylamines using synthesis gas reaction and a nitrogen compound over a solid catalyst in a single reaction stage. The method results in high alkylamine selectivity with low carbon dioxide a...  
WO/2024/021969A1
The present invention provides a method for controlling aniline impurities that are difficult to treat in waste brine in a DAM production process, the method comprising the following steps: (1) in the presence of an iron-molybdenum catal...  
WO/2024/018394A1
The present invention relates to a process for the preparation of crystalline form A of N, N'-bis(2-aminoethyl)-1,2-ethanediamine tetrahydrochloride (I).  
WO/2024/020168A2
Novel bio-based polymers are described that may be chemically recycled to monomer at end of life. The polymers may be manufactured as fiber, molded parts, film, coatings, etc. that are more efficiently recycled than commodity plastics. S...  
WO/2024/017890A2
The invention relates to a process according to claim 1, in which nitric acid, as direct process product from a process for nitric acid preparation comprising the following steps: a) providing hydrogen gas (5d) and oxygen gas (5b) by per...  
WO/2024/018965A1
[Problem] To suppress any reduction in the selectivity of halogenated aromatic amines of a target product caused by a halogen separation reaction in hydrogenation of an aromatic halonitro compound. [Solution] A hydrogenation catalyst tha...  
WO/2024/011414A1
Disclosed in the present invention is a reaction method for secondary amine and o-diiodobenzene, comprising: reacting secondary amine with o-diiodobenzene in the presence of an alkali metal hydride or a Grignard reagent to complete the r...  
WO/2024/011559A1
Disclosed is a process for preparing fused aromatic amine from isocyanide and cyclopropene.  
WO/2024/008728A1
The present invention relates to a solvent-efficient process for recycling one or more polymers selected from the group consisting of polyurethanes, polyurethane ureas, polyisocyanurates, and a mixture of two or more thereof, said one or...  
WO/2024/008727A1
The present invention relates to a process for recycling one or more polymers selected from the group consisting of polyurethanes, polyurethane ureas, polyisocyanurates, and a mixture of two or more thereof, said one or more polymers bei...  
WO/2024/002748A1
This invention relates to a method for the manufacture of ethyleneamine from a mixture comprising water (H2O), ethylenediamine (EDA) and N-methylethylendiamine (NMEDA), comprising the steps of: (i) providing a feed stream comprising EDA,...  
WO/2024/002740A1
The present invention relates to a method for the manufacture of ethyleneamine from a mixture comprising water (H2O), ethylenediamine (EDA) and N-methylethylendiamine (NMEDA), comprising the steps of: (i) providing a feed stream comprisi...  
WO/2024/002975A1
The invention relates to a method of recovery of the monomers from a polyamide (PA) of the AABB type comprising the following steps: - a) a product (P) comprising the polyamide (PA) is optionally comminuted; - b) an aqueous medium compri...  
WO/2023/249027A1
A quaternary ammonium salt that has a specific structure, an organic structure-directing agent that contains this quaternary ammonium salt, and a method for producing a quaternary ammonium salt. Also, a CON-type zeolite that is mixed cry...  
WO/2023/249374A1
Disclosed are an apparatus and a method for producing perfluoro tripropylamine (PFTPA) by using electrochemical fluorination. The production method according to an embodiment is a method for producing PFTPA by forced convection of a mixe...  
WO/2023/249377A1
A perfluorotripropylamine (PFTPA) preparation apparatus and method using electrochemical fluorination (ECF) are disclosed. The preparation method according to one embodiment comprises: a preparation step of preparing PFTAA from a mixture...  
WO/2023/241927A1
A process for recovering an amine substance from a polyurethane material, preferably from an end-of-life (eol) polyurethane material, is provided, wherein the process comprises alcoholising a polyurethane material by contacting the polyu...  
WO/2023/227996A1
The present invention relates to a process for synthesis of a deuterated compound. Most particularly, it relates to synthesis of a deuterated amine compounds of formula (l) and salts thereof. The said compound is an important key interme...  
WO/2023/224418A1
The present invention relates to a method for producing, from fatty alcohols, various monomers that are used in the production of synthetic resins.  
WO/2023/216458A1
Provided is a production process for hydrogenation of o-phenylenediamine, comprising the following steps: adding a porous catalyst to an autoclave, adding o-nitroaniline and methanol in sequence, introducing hydrogen to replace the air i...  
WO/2023/218402A1
The present disclosure describes non-classical (e.g., quantum) computing systems and methods that utilize dopant molecules contained in host materials as qubits. The dopant molecules generally comprise ground-state triplet (GST) molecule...  
WO/2023/208020A1
Disclosed are an intermediate of a polyamine derivative pharmaceutical salt, a preparation method therefor, and use thereof. The intermediate compound has the following structure: (I), which can be used to prepare a polyamine derivative ...  
WO/2023/212648A2
A system, composition, and method of producing a heat resistant and higher toughness plastic material that results in enhanced Polydiketoenamines (PDK) materials. Such systems, compositions, and/or methods may include combination of a tr...  
WO/2023/200015A1
The present invention provides: iron phosphide nanoparticles which are stable in the atmosphere, and in which iron atoms are in a low valence state; a method for producing the iron phosphide nanoparticles; and a reduction catalyst. The p...  
WO/2023/194110A1
The invention relates to a method for producing aniline or an aniline-derived product, comprising the following steps: (A) providing aminobenzoic acid; (B) decarboxylating the aminobenzoic acid in a reactor at a reaction temperature in t...  
WO/2023/189319A1
Provided are: an amino compound which can realize reduced dielectric loss tangent of a cured product of resin composition; a polyamide acid and a polyimide using the amino compound; and a method for producing the same. The present inve...  
WO/2023/179110A1
Disclosed is a method for synthesizing polyethylene polyamine under catalysis, wherein monoethanolamine and ethylenediamine are used as main raw materials, and are subjected to hydroamination under the action of a catalyst so as to obtai...  
WO/2023/181053A1
The present invention relates to an improved process for purification of Robenacoxib. More particularly, the present invention relates to a process for obtaining crystalline Robenacoxib in high yield with high purity. Furthermore, the pr...  
WO/2023/183254A1
Electrolyte compositions comprising one or more ion conducting salt(s) and one or more ammonium salt(s), such as, for example, asymmetric ammonium salt(s) or the like, which may, independently, be a quaternary ammonium salt. In various e...  
WO/2023/180219A1
A method for synthesis of halide salts of the general formula: Zn+X- n; the method comprising reacting a first reactant being formate salt with a second reactant being a diatom halogen: X2.  
WO/2023/166999A1
The present invention pertains to the development of a method whereby it is possible to maintain a high removal effect of metal ions from a crude quaternary ammonium compound (for example, a quaternary ammonium hydroxide compound or halo...  
WO/2023/166043A1
The present invention generally relates to mixtures of cationic surfactants, and compositions comprising such mixtures, which are useful for maintaining or improving moisture wicking; and their use for softening fabrics and/or fibres.  
WO/2023/166041A1
The present invention relates to mixtures of cationic surfactants useful for preparing optically transparent softening compositions; compositions comprising such mixtures; and their use for softening fabrics and/or fibres.  
WO/2023/166042A1
The present invention generally relates to mixtures of cationic surfactants useful for preparing concentrated softening compositions that can be introduced directly to the washing machine as a unit dose (e.g., tablet or capsule) or as a ...  
WO/2023/165243A1
The present invention belongs to the technical field of photoelectric detectors, and provides a two-dimensional (PEA)2PbX4 nanosheet, a preparation method therefor, and use thereof in an ultraviolet detector. The preparation method for t...  
WO/2023/160035A1
A β-elemene vinylation coupled derivative, and a preparation method therefor and the use thereof in the preparation of an antitumor drug. Provided are a β-elemene vinylation coupled derivative having a structure as represented by formu...  
WO/2023/161252A1
The present invention relates to an improved process for depolymerization of polyurethanes under mild conditions and low salt concentration in the reaction mixture, wherein polyether polyols and polyamines can be recovered in high yields.  
WO/2023/161251A1
The present invention relates to an improved process for depolymerization of polyurethanes under mild conditions and low salt concentration in the reaction mixture, wherein polyether polyols and polyamines can be recovered in high yields.  
WO/2023/156832A1
Disclosed in a process (100) for preparation of highly pure 4-(N-butyl) aniline by performing steps of adding (101) sulfuric acid and a n-butylbenzene to a tank reactor, nitration (103) of n-Butylbenzene by using a nitrating agent, where...  

Matches 1 - 50 out of 9,739