| Document |
Document Title |
|
JP2024503329A |
The present invention relates to a method for producing an isocyanate compound. The present invention provides a method for producing an isocyanate compound that can recover and reuse materials used in the reaction when producing an isoc...
|
|
JP2024503330A |
The present invention relates to a method for producing an isocyanate compound. The present invention provides a method for producing an isocyanate compound that minimizes thermal denaturation of a reaction product and generation of by-p...
|
|
JP2024503331A |
The present invention relates to a method for producing an isocyanate compound. The present invention is a method for producing an isocyanate compound that can recover and reuse the materials used in the reaction when producing an isocya...
|
|
JP2024501337A |
The present invention relates to a method for producing an isocyanate compound. The present invention provides a method for producing isocyanate compounds that can minimize thermal denaturation of reaction products and generation of by-p...
|
|
JP2023554659A |
A batch reactor according to an embodiment of the present invention includes a reactor containing a liquid solvent, a sparger supplying a gaseous raw material into the reactor, and a sparger installed in the reactor in a height direction...
|
|
JP7396284B2 |
The composition comprises a compound (A) represented by general formula (1) and a compound (B) represented by general formula (2), and comprises 0.00002 to 2.0 parts by mass of the compound (B) with respect to 100 parts by mass of the co...
|
|
JP7396285B2 |
The invention is related to a composition excellent in stability during storage and excellent stability during utilization, and related to a method of producing the composition. The composition comprises a compound (A) represented by gen...
|
|
JP7388114B2 |
To provide: a novel isocyanate compound; a polymerizable composition, a polymer, a lens and a coating agent that are based on the isocyanate compound; and a production method of the isocyanate compound.The invention relates to a compound...
|
|
JP2023549053A |
The present invention provides polyisocyanate compositions, methods of their preparation, and uses. [Solution] In a polyisocyanate composition, the value obtained by subtracting the mass content of hydrolyzed chlorine from the mass conte...
|
|
JP2023159107A |
To provide a xylylene diisocyanate composition, a polymerizable composition, a resin, a molded article, an optical element, and a lens capable of improving hue and transparency of resin.A xylylene diisocyanate composition includes xylyle...
|
|
JP2023544863A |
An improved method for producing 1,5-pentamethylene diisocyanate (PDI) from cadaverine salt is described herein. The method generally includes the steps of providing a solution comprising a cadaverine salt dissolved in an inert solvent i...
|
|
JP7369179B2 |
Phosgene is mixed with an organic polyamine to produce polyisocyanate compounds. A phosgene flow is established in a conduit (15), and the organic polyamine is injected into the phosgene flow. A constricted region (4) of the conduit (15)...
|
|
JP7368575B2 |
To provide a polythiol composition with a special composition and an optical material system suitable therefor, aimed to ultimately provide effective improvements in the toughness and impact resistance of the optical material, simultaneo...
|
|
JP2023143952A |
To provide an isocyanate composition which can be produced using an isocyanate production system that contributes to reduction in an emission amount of carbon dioxide in a process of producing an isocyanate compound.An isocyanate composi...
|
|
JP7357394B2 |
The present invention is directed to processes for producing isocyanates and isocyanate derivatives from epoxide and carbon monoxide reagents. In preferred embodiments, the processes include a step for providing carbonylation of an epoxi...
|
|
JP2023541640A |
[Problem] Instead of proceeding with the above-mentioned complicated process to reduce chlorinated derivatives, the chlorinated derivatives produced in the general process are converted to non-chlorinated derivatives through a simple red...
|
|
JP2023538842A |
[Solution] The present invention contains monomeric diphenylmethane diisocyanate (MDI) as component (q1), and an amide with a molecular weight of less than 200 g/mol as component (q2), the total of components (q1) and (q2) being 100% by ...
|
|
JP7331611B2 |
To provide: a novel isocyanate compound; an isocyanate composition, a polymerizable composition, a polymer, a lens and a coating agent that are based on the isocyanate compound; and a production method of the isocyanate compound.The inve...
|
|
JP2023115018A |
To provide a xylylene diisocyanate composition, a modified xylylene diisocyanate composition, and a polymerizable composition, which enable stable production of resin excellent in yellowing resistance and transparency, and to provide res...
|
|
JP7323724B2 |
Provided is an isocyanate production system 1 including a control device 10 that selects energy produced by a biomass boiler 134, biomass methanol or carbon recycle methanol used by a methanol cracking device 150, recycled oil or biomass...
|
|
JP7322293B2 |
Disclosed is a 1,3-bisisocyanatomethylcyclohexane composition and an optical resin prepared therefrom. The composition comprises, based on the weight of 1,3-bisisocyanatomethylcyclohexane, a) 65%-95wt% of trans-1,3-bisisocyanatomethylcyc...
|
|
JP2023104999A |
To provide a container that contains xylylene diisocyanate with sufficiently low colorability, a storage method of xylylene diisocyanate and a transport method of xylylene diisocyanate.In a xylylene diisocyanate-containing container 1 co...
|
|
JP7315585B2 |
The invention relates to a process for the preparation of aliphatic, cycloaliphatic or araliphatic isocyanates by reacting at least one primary organic amine with a stoichiometric excess of phosgene in the gas phase, comprising the steps...
|
|
JP2023092840A |
To provide a production method of an isocyanate, with which the isocyanate can stably and continuously be produced in a high yield in producing the isocyanate without using phosgene.In a production method of an isocyanate, a carbamate co...
|
|
JP2023091331A |
To provide a production method of an isocyanate, which uses a carbamate as a raw material, in which a side reaction is suppressed and which has a high yield.A production method of an isocyanate is a method for producing an isocyanate by ...
|
|
JP2023526598A |
The present invention continuously converts an isocyanate by converting a primary amine A with phosgene P in the liquid phase in the presence of a solvent L while maintaining a stoichiometric excess of phosgene to the amino groups of the...
|
|
JP7289990B2 |
[Solving Means]A xylylene diisocyanate composition contains a xylylene diisocyanate and a compound having retention time of 14.0 minutes to 14.6 minutes when the xylylene diisocyanate composition is measured by gas chromatography mass sp...
|
|
JP7285924B2 |
Disclosed is a method for preparing an isocyanate in a gaseous phase, comprising feeding, in the presence or absence of an inert gas, an amine-containing gas stream and a phosgene-containing gas stream into a reaction region, allowing th...
|
|
JP7276341B2 |
The invention is related to a composition excellent in stability during storage and excellent stability during utilization, and related to a method of producing the composition. The composition comprises a compound (A) represented by gen...
|
|
JP7276342B2 |
A composition is provided including a compound (A) represented by Formula (1) and a compound (B) represented by Formula (2), wherein the compound (B) is contained in an amount of 0.00002 to 0.2 parts by mass with respect to 100 parts by ...
|
|
JP7240568B2 |
[Problem]To provide a xylylene diisocyanate composition, a polymerizable composition for an optical material, a resin, a molded article, an optical element, and a lens capable of stably producing a resin having excellent heat resistance....
|
|
JP7239953B2 |
The objective of the present invention is to provide a method for producing a carbonyl halide efficiently to the used halogenated methane. The method for producing a carbonyl halide according to the present invention is characterized in ...
|
|
JP2023036548A |
To provide a xylylene diisocyanate composition and an optical polymerizable composition including the same that allow manufacture of an optical lens having high transmittance and improved optical uniformity.A xylylene diisocyanate (XDI) ...
|
|
JP7227973B2 |
The present invention relates to a plant for preparing a purified isomeric monomer from a mixture of different isomeric monomers, wherein the plant comprises a distillation apparatus, which comprises:a) a distillation column including a ...
|
|
JP7218311B2 |
The invention relates to a method for operating a production plant for producing a chemical product (1) by reacting a H-functional reactant (2) with phosgene (3) during an interruption in production when taking at least one plant part of...
|
|
JP7199547B2 |
There are provided a method of producing a carbonyl compound by a flow type reaction, including introducing a triphosgene solution, a tertiary amine solution, and an active hydrogen-containing compound solution into flow channels differe...
|
|
JP2023500262A |
The present invention synthesizes phosgene (20) from at least carbon monoxide (21) and chlorine (22) (1); and hydrogen chloride (25); providing a carbon dioxide gas stream (31); and cleaning (4) the carbon dioxide gas stream (31) of addi...
|
|
JP7199546B2 |
There are provided a method of producing a carbonyl compound by a flow type reaction, including introducing a triphosgene solution into a flow channel (I), bringing the triphosgene solution into contact with a solid catalyst immobilized ...
|
|
JP7194822B2 |
Disclosed is a method for preparing isophorone diisocyanate. The method comprises the following steps: (1) reacting isophorone with hydrogen cyanide in the presence of a catalyst to obtain isophorone nitrile; (2) reacting the isophorone ...
|
|
JP2022550763A |
The present invention relates to a process for the distillative purification of crude isocyanates obtained by phosgenation of the corresponding isocyanates in a distillation apparatus under vacuum to obtain the corresponding isocyanates,...
|
|
JP2022547814A |
The present invention is a process for producing isocyanates by using (A) an amine and a stoichiometric excess of phosgene (a) as a diluent during the reaction and/or (b) the reaction of the amine with phosgene. (referred to as quench) a...
|
|
JP2022170318A |
To provide a method for producing an isocyanate in high purity and yield, while suppressing contamination by by-products in a purification step.The present invention discloses a method for obtaining an isocyanate represented by general f...
|
|
JP7165508B2 |
To provide a production method of isocyanate for producing isocyanate continuously by suppressing a side reaction.A production method of isocyanate is a method for producing isocyanate by pyrolysis of carbamate. The method includes a pyr...
|
|
JP7165509B2 |
To provide a method for producing isocyanate that suppresses a side reaction and continuously produces isocyanate.The present invention provides a method for producing isocyanate by pyrolysis of carbamate, the method including: a pyrolys...
|
|
JP7157810B2 |
An embodiment relates to an isocyanate composition with improved stability and reactivity and a plastic optical lens using the same. The isocyanate composition has improved stability since the content of chlorine in the composition is ad...
|
|
JP7155125B2 |
The industrial scale preparation of isocyanates gives rise to distillation bottom streams that are in need of further workup. These distillation bottom streams still also contain, as well as a distillation residue consisting of compounds...
|
|
JP7144540B2 |
The present invention relates to a method for preparing aliphatic isocyanate. More specifically, the present invention relates to a high purity isocyanate preparation method that can effectively recover unreacted materials and recycle th...
|
|
JP2022540452A |
The present invention relates to a process for producing polyisocyanates with low monomer content, said process comprising the steps of: (i) modifying at least one monomeric diisocyanate to contain at least one polyisocyanate and unreact...
|
|
JP7126218B2 |
The diisocyanate composition according to an embodiment of the present invention comprises, in the composition, a benzyl isocyanate having a methyl group in an amount of 5 ppm to 200 ppm, an aromatic compound having a halogen group in an...
|
|
JP7126217B2 |
The diamine composition according to an embodiment of the present invention comprises a benzylmonoamine having a methyl group in an amount of 10 ppm to 2,000 ppm in the composition. When it is used for the preparation of a diisocyanate c...
|
