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Patent Searching and Data


Matches 301 - 350 out of 1,205

Document Document Title
WO/1994/024102A1
Waste nylon 6 and/or nylon 6,6 are treated with aliphatic monocarboxylic acid to depolymerize the polymer to desirable monomer.  
WO/1994/008942A1
A process is disclosed for simultaneously depolymerizing nylon 6 and 6,6 and reclaiming the monomer values by steam distillation, in the presence of a basic nylon depolymerizing catalyst.  
WO/1994/006763A1
epsilon-Caprolactam is continuously recovered from carpet made from nylon 6 face fibers and a backing. The carpet is fed to a separator to prepare scrap containing nylon 6 and auxiliary materials. The scrap from the separator is fed to a...  
WO/1993/017787A1
A catalyst and method for producing N-substituted pyrrolidones utilizes a copper-palladium catalyst disposed on a support and mixed with a desired alcohol and 2-pyrrolidone. A reaction is undertaken under a hydrogen atmosphere, preferabl...  
WO/1993/016042A1
The invention relates to a process for producing pyrrolidone and N-alkyl pyrrolidones from saturated or unsaturated 1.4-bicarboxylic acids and their anhydrides, hydrogen and a primary amine or ammonia, in which the bicarboxylic acid or i...  
WO/1992/022528A2
A process of using fast pyrolysis in a carrier gas to convert a plastic waste feedstream having a mixed polymeric composition in a manner such that pyrolysis of a given polymer to its high value monomeric constituent occurs prior to pyro...  
WO/1988/004651A1
Method and improved apparatus for recovering a volatile organic material, such as caprolactam, from a liquid mixture of organic and inorganic materials. The method features the step of mixing the liquid mixture with superheated steam for...  
WO/1985/003222A1
Hair colorant with a certain concentration of picramic acid derivatives having the formula (I) wherein R represents an alkyl, hydroxyalkyl, dihydroxyalkyl, epoxyalky, alkoxyalkyl, aminoalkyl, alkylaminoalkyl or dialkylaminoalkyl rest. Th...  
JP2024504312A
The present invention relates to a method for purifying laurolactam, and more particularly to a method for purifying laurolactam with high purity and almost no impurities. The present invention is a method for purifying laurolactam from ...  
JP2023550492A
The present invention comprises the steps of: a) synthesizing cyclododecanone oxime to laurolactam by Bechmann rearrangement under a catalyst; b) mixing the laurolactam synthesized in step a) with a good solvent; c) mixing the laurolacta...  
JP2023099166A
To provide a novel method for preparing caprolactam from 6-aminocaproic acid (hereafter called 6-ACA) obtained in a biochemical process, and in particular such a method that allows a satisfactory caprolactam yield.The invention provides ...  
JP2023515071A
The present invention is a lamp (1) for a photochemical reactor: - at least one lamp made of a material having a thermal conductivity of 100 W/mK or more at 20°C and configured to contain a cooling fluid; a support member (2) containing...  
JP2023504265A
The present invention comprises the steps of a) synthesizing cyclododecanone oxime as laurolactam by Bechmann rearrangement under a catalytic system, and b) mixing laurolactam synthesized in step a) with a good solvent. , a step of remov...  
JP2022184796A
To provide a haloalkylsulfonanilide derivative that has excellent herbicidal activity.Provided is a compound of formula [I]. (W: O, S. R1: C1 to C6 haloalkyl. R2: H, cyano, etc. R3 to R6: H, C1 to C6 alkyl. R7: H, halogen, C1 to C6 alkyl...  
JP2022543990A
A process is provided for the preparation of aripiprazole lauroxyl comprising reacting 1-(hydroxymethyl)aripiprazole with lauric anhydride in the presence of DMAP and a solvent. [Chemical 1] [Selection figure] None  
JP2022130510A
To provide new methods for producing cis-alkoxy substituted spirocyclic 1-H-pyrrolidine-2,4-dione derivatives and new intermediates or starting compounds that are used in the methods.Such a one-pot process is used that a compound of a fo...  
JP7125674B2
The present invention is a method of producing ε-caprolactam through adipamide as an intermediate, and characteristically includes a lactamization step of reacting adipamide, formed from a material compound, with hydrogen and ammonia in...  
JP2022090290A
To provide a light source device for photochemical reaction having a heat sink made of an aluminum alloy resistant to corrosion, a photochemical reaction device and method using the light source device, and a method for producing lactam ...  
JP2022520993A
INDUSTRIAL APPLICABILITY The present invention is a compound (I) useful for the prevention and treatment of a viral disease in a patient in connection with a hepatitis B infection or a disease caused by the hepatitis B infection. , Or a ...  
JP2022040918A
To provide a compound that can solve problems of conventional catalysts using Au nano particles, exhibits high catalyst activity not only in production of amides by α-methylene group selective oxygenation reaction of an alkyl amine havi...  
JP6980023B2
The invention relates to a method for producing cyclododecanone (CDON). During the production, contaminated cyclododecane (CDAN) is produced. This can be separated from CDON by distillation (CDAN-containing fraction). The separation of C...  
JP6866894B2
A production method of ε-caprolactam, comprising a step of Beckmann-rearranging cyclohexanone oxime in a gas phase in the presence of a zeolite catalyst containing a silicon element and at least one element selected from the group consi...  
JP6852181B2
The present invention relates to a process for purifying caprolactam from solutions of crude caprolactam by a direct treatment with one or more alkaline compounds of polyvalent metals, preferably bivalent and trivalent, without resorting...  
JP6786052B2
A method of producing µ-caprolactam from 3-oxoadipic acid which is preferred as a biomass resource is disclosed. The method of producing µ-caprolactam includes: the step 1 of mixing at least one selected from the group consisting of 3-...  
JP2020114227A
To provide compositions of industrially useful alcohol, amine, lactone, lactam and acid, linear fatty acid and linear fatty alcohol with the carbon length of 7 to 25, linear alkane and linear α-alkene with the carbon length of 6 to 24, ...  
JP6672792B2
A method for selective production of µ-caprolactam, wherein a substance inducible from a biomass resource is used as a material; the reaction process is short; ammonium sulfate is not produced as a by-product; and production of by-produ...  
JP6610687B2
A power supply device, a photochemical reaction device and method in which the power supply device is used, and a lactam production method in which the photochemical reaction method is used, the power supply device being characterized by...  
JP6567332B2
The invention relates to a method for preparing lactames, according to which a photonitrosation of a cycloalkane is carried out using nitrosyl chloride (NOCI). According to the invention, said photonitrosation is carried out by means of ...  
JP6559251B2
Methods for producing lactams from oximes by performing a Beckmann rearrangement using a hierarchical porous aluminophosphate catalyst having interconnected microporous and mesoporous networks are provided. Exemplary catalysts include a ...  
JP2019115352A
To provide a method for preparing ε-caprolactam (caprolactam) from biochemically prepared 6-aminocaproic acid (6-ACA).A method for preparing caprolactam comprises recovering a mixture containing 6-aminocaproic acid from a culture medium...  
JP6544118B2
A method for producing zeolite and a method for producing -caprolactam. It is another object of the present invention to provide a method for producing a zeolite which is more excellent from the viewpoint of catalytic activity. The objec...  
JP2019515934A
The present invention relates to novel methods for producing cis-alkoxy-substituted spirocyclic 1-H-pyrrolidin-2,4-dione derivatives and novel intermediates or starting compounds used in the methods of the invention.  
JP6513823B2
Disclosed herein is an efficient, economical, industrially advantageous, straight-through process for the preparation of cyclic amides, also referred as lactams, in substantially pure form and high yield, from the corresponding cyclic ke...  
JP2019055999A
To provide a method for preparing lactams through photonitrosation of a cycloalkane using nitrosyl chloride (NOCL).The photonitrosation is carried out by means of LEDs emitting a monochromatic light. Beckmann transposition/dechlorination...  
JP6499225B2
The invention relates to a method for preparing caprolactam comprising recovering a mixture containing 6-aminocaproic acid, from a culture medium comprising biomass, and thereafter cyclising the 6-aminocaproic acid in the presence of sup...  
JP6419083B2
Provided is a photochemical reaction device wherein two partitions formed from an optically transparent material are arranged apart from each other between a light source and a reaction liquid, and an optically transparent fluid introduc...  
JP2018076235A
To provide a method for producing ε-caprolactam at a high reactivity and a high selectivity by a rearrangement reaction of cyclohexanone oxime produced by even using cyclohexylamine as the raw material.A production method of ε-caprolac...  
JP6320413B2
A method is described for the production of purified caprolactam, comprising the steps: a) extraction with an organic extraction agent of raw caprolactam, obtained from the Beckmann rearrangement of cyclohexanone oxime, b) separation of ...  
JP6243340B2
Methods for producing lactams from oximes by performing a Beckmann rearrangement using a silicoaluminophosphate catalyst are provided. These catalysts may be used in gas phase or liquid phase reactions to convert oximes into lactams. Hig...  
JP6235769B2
The invention relates to a method for preparing lactames, according to which a photonitrosation of a cycloalkane is carried out using nitrosyl chloride (NOCI). According to the invention, said photonitrosation is carried out by means of ...  
JPWO2016199706A1
A control circuit that controls a current from a power supply source, a cooling means that can cool the surroundings by the flow of a refrigerant, a heat transfer means that connects the cooling means and the control circuit, and the hea...  
JP2017132797A
To provide a method for preparing lactams through photonitrosation of a cycloalkane using nitrosyl chloride (NOCL).The photonitrosation is carried out by means of LEDs emitting a monochromatic light. Beckmann transposition/dechlorination...  
JPWO2016059942A1
A device installed between a three-phase AC power supply and a group of light-emitting diodes, which is a three-phase full bridge circuit in which a pair of switching elements are connected in parallel between the three-phase DC bus of t...  
JP6137333B2
Provided are a photoirradiation device equipped with: a first optically transparent container for covering a light-emitting body provided with light-emitting diodes; a liquid phase section provided on the outside thereof and formed from ...  
JP2017081987A
To provide a method for preparing lactams through photonitrosation of a cycloalkane using nitrosyl chloride (NOCL).The photonitrosation is carried out by means of LEDs emitting a monochromatic light. Beckmann transposition/dechlorination...  
JP6061957B2
or a tautomer or salt thereof, where R1-R5, a, b, X and P2, are as defined in the specification.  
JP6030397B2  
JP6003755B2  
JP5979256B2  
JP5979255B2  

Matches 301 - 350 out of 1,205