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WO/2024/052441A1 |
The invention relates to a method for treating residue from the production of organic isocyanates via the phosgenation of organic amines, comprising a step of mixing a first residue A with a second residue B, obtaining a residue mixture,...
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WO/2024/035146A1 |
The present invention pertains to: a method for preparing a high-purity isocyanate composition; and an isocyanate composition.
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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 ...
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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...
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WO/2024/007204A1 |
The present application relates to a method for preparing isocyanate. Specifically, the present application provides a method for preparing isocyanate by combining a supercritical phosgenation method with a piping method.
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WO/2023/247525A1 |
The invention relates to a method for producing isocyanates via phosgenation, in particular gas-phase phosgenation (GPP) or liquid-phase phosgenation (FPP), of the corresponding amines, wherein an amine mixture formed of at least one fir...
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WO/2023/247523A1 |
The invention relates to a method for producing isocyanates via gas-phase phosgenation of the corresponding amines in a phosgenation system, in which, in particular, problems due to the formation of deposits in apparatus of the phosgenat...
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WO/2023/247522A1 |
The invention relates to a method for producing isocyantes via a gas-phase phosgenation of the corresponding amines, wherein an amine mixture formed of at least one first amine and at least one second amine, that is different from the fi...
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WO/2023/208914A2 |
The invention relates to a process for storing a toluene diisocyanate and high boilers containing mixture by feeding the toluene diisocyanate and high boilers containing mixture into a storage vessel (23) and agitating the toluene diisoc...
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WO/2023/161302A1 |
The invention relates to a method according to claim 1 for the low-emission production of carbon monoxide (CO) for the production of phosgene, from which, for example, polycarbonates or organic isocyanates, and polyurethanes therefrom, c...
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WO/2023/156311A1 |
The present invention relates to intermediates and processes useful for preparing 1-ethyl-N-((1,2,3,5,6,7-hexahydro-s-indacen-4-yl)carbamoyl)p
iperidine-4-sulfonamide and salts thereof. The present invention further relates to 1-ethyl-N-...
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WO/2023/152038A1 |
The invention relates to a method for producing isocyanates by reacting at least one amine or the salt thereof with a stoichiometric excess of phosgene in the condensed phase in the presence of a solvent, having the steps of: A) transiti...
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WO/2023/152400A1 |
The invention relates to a method for the coupled production of polyurethanes. Polyurethane can be produced with a reduced CO2 footprint by means of the energetic combination of the polyurethane synthesis with preceding process steps.
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WO/2023/152039A1 |
The invention relates to a method for preparing isocyanates by reacting corresponding amines with phosgene. The invention further relates to an apparatus for separating exhaust gas flows from a phosgenation reaction.
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WO/2023/145991A1 |
A method for preparing aliphatic isocyanate according to one embodiment of the present invention comprises: a first step of introducing aliphatic amine and an organic solvent into a reactor; a second step of supplying gaseous hydrogen ch...
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WO/2023/114015A1 |
Provided is an epoxy-functional resin and a process for its manufacture comprising reacting a polyisocyanate; and a compound: HX-Y-(Z)n wherein, X is O, N, or S, Y is a linear or branched C1-C15 alkyl group, and Z is -CH=CDE or Z is -F-O...
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WO/2023/114040A1 |
Provided is a dual-cure epoxy and cyclic carbonate-containing urethane compound comprising an oxidized cyclic carbonate containing allyl-functional-carbamate which comprises a reaction product of a cyclic carbonate containing allyl-funct...
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WO/2023/114644A1 |
Provided is a glycidyl carbamate-functional composition comprising a reaction product of an allyl carbamate composition with a ketone, water, a base, and an aqueous solution of an oxidant, wherein the allyl carbamate composition comprise...
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WO/2023/114645A1 |
Provided is a polyurethane with pendant epoxy groups. The invention further provides a process for producing these polyurethanes with pendant epoxy groups, the process comprising (1) reacting a diisocyanate with a compound containing one...
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WO/2023/114041A1 |
Provided is a dual-cure epoxy and cyclic carbonate-containing urethane compound comprising an oxidized cyclic carbonate containing allyl-functional-carbamate which comprises a reaction product of a cyclic carbonate containing allyl-funct...
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WO/2023/108620A1 |
The present application relates to a method for preparing isocyanate. Specifically, in the method of the present application, phosgene (especially liquid phosgene) is used as a quench medium to prepare isocyanate.
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WO/2023/106377A1 |
Provided is a method for producing a blocked isocyanate compound, the method comprising a reaction step of reacting a primary amine compound, a carbonic acid derivative, and a blocking agent by means of heat treatment in the presence of ...
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WO/2023/101340A1 |
The present invention relates to a method for producing diisocyanate that has high purity and excellent stability even during long-term storage and thus has low haze. The stability of the diisocyanate can be improved by maintaining the t...
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WO/2023/080257A1 |
The method for producing isocyanate compounds comprises: a step (1) for obtaining an N-substituted carbamate compound by reacting a primary amine compound and a carbonate derivative, while removing by-product compounds that have a boilin...
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WO/2023/063843A1 |
The invention relates to the field of producing isocyanates, in particular, to a method for producing (poly)diaminodiphenylmethane used to obtain polyisocyanates. The invention relates to a method for changing a molecular weight distribu...
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WO/2023/063852A1 |
The invention relates to the field of producing isocyanates, in particular, to a method for producing (poly)diaminodiphenylmethane used to obtain polyisocyanates. The invention relates to a method for changing a molecular weight distribu...
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WO/2023/057311A1 |
The invention relates to a method for producing phosgene from chlorine and carbon monoxide (1), the method being characterised in that carbon monoxide obtained by catalytic decomposition of methanol (4) is provided and this provided carb...
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WO/2023/041781A1 |
A chemical process for preparing at least one aromatic isocyanate, said process comprising n chemical sub-processes sp(i), wherein a sub-process sp(i) is carried out in a chemical processing sub-unit U(i), i=1...n, n≥1, wherein during ...
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WO/2023/041771A1 |
The invention relates to a method for the removal of water from and transport of at least one aliphatic diamine comprising the following steps: a) providing a first composition including 60 to 98 wt.-% water and 2 to 40 wt.-% of the at l...
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WO/2023/041769A1 |
The invention relates to a method for obtaining an amine from a composition by means of distillation and a composition obtainable by that method. The invention also relates to a method for the production of an isocyanate from the composi...
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WO/2023/041768A1 |
The invention relates to a method for the processing and transport of hexane-1,6-diamine or pentane-1,5-diamine comprising the steps of: a) Providing a first composition including 60 to 98 wt.-% water and 2 to 40 wt.-% hexane-1,6-diamine...
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WO/2023/022203A1 |
Provided is an isocyanate production system 1 comprising a control device 10 that chooses energy generated by a biomass boiler 134, biomass methanol or carbon recycled methanol for use in a methanol decomposition device 150, a recycled o...
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WO/2023/285545A1 |
The present invention relates to the field of polyurethane recycling and pertains to a method of recycling of a polyurethane, comprising a first alcoholysis step and a further thermolysis step. By means of the method according to the pre...
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WO/2023/275036A1 |
The invention relates to a process for producing aromatic and/or aliphatic diisocyanates, comprising the following steps: a) depolymerising a polyurethane by hydrolysis in the presence of a base and a catalyst, which is selected from the...
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WO/2023/274492A1 |
The present invention is directed towards a process for the preparation of free isocyanates, which improves upon the disadvantages associated with heterogeneous catalysis. The process comprises converting formamides into the correspondin...
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WO/2022/263320A1 |
The invention relates to a tubular reactor for gas phase phosgenation of at least one organic amine comprising • at least one inlet device for starting materials, • an outer shell with inner diameters Dri, • a tubular inner sleeve ...
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WO/2022/248448A1 |
The present invention relates to a process for preparing at least one polyisocyanate R(-NCO)x, the process comprising preparing a mixture R1 comprising at least one polyamine R(-NH2)x, with x = 2 or more, in a first reaction zone Z1; pas...
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WO/2022/228805A1 |
The present disclosure relates to a diisocyanate stabilizer, use of the diisocyanate stabilizer for stabilizing diisocyanate, and a diisocyanate composition comprising the stabilizer. The diisocyanate stabilizer comprises a sterically hi...
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WO/2022/223202A1 |
The present invention relates to a continuous process for preparing chlorine and a production unit for carrying out said process. The present invention further relates to a use of said produc- tion unit for the continuous production of c...
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WO/2022/194621A1 |
This disclosure relates to a composition comprising (a) 4,4'-methylene diphenyl diisocyanate (4,4'-MDI), and (b) at least one heterocyclic compound comprising as ring moiety at least one structure of formula (I) as defined in the descrip...
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WO/2022/188825A1 |
A xylylene diisocynate composition, a preparation method therefor and the use thereof. The xylylene diisocynate composition includes xylylene diisocynate and 0.2-500 ppm of a compound represented by formula (1). A resin prepared from the...
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WO/2022/175153A1 |
A process for the manufacture of isophorone diamine (I PDA), comprising the steps of: a) providing a feed stream comprising trans-IPDA, cis-IPDA, isophorone nitrile amine (IPNA), components having a lower boiling point than trans-IPDA an...
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WO/2022/172744A1 |
The purpose of the present invention is to provide an efficient method of producing a carbonyl halide for a halogenated methane used. A method for producing a carbonyl halide according to the present invention is characterized by compris...
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WO/2022/172745A1 |
The purpose of the present invention is to provide a method for producing a halogenated carbonyl efficiently in regard to the used halogenated hydrocarbons. The method for producing a halogenated carbonyl according to the present inventi...
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WO/2022/167387A1 |
The invention describes a process for producing carbon monoxide which is intended to be incorporated into a process for producing isocyanates by synthesis (1) of phosgene (1a) from carbon monoxide (9a) and chlorine (12b), reaction (2) of...
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WO/2022/147830A1 |
Provided are a method for preparing a polyisocyanate, a polyisocyanate obtained by using the method, and a reaction device used in the method. The method comprises the following steps: 1) subjecting a polyamine solution and a phosgene so...
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WO/2022/147939A1 |
A reactor and method for preparing diisocyanate by using a low-temperature gas phase method. The tubular reactor comprises a tubular housing, an external jacket, and a gas distribution device located at the top of the housing; the housin...
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WO/2022/146091A1 |
The present invention relates to a method for preparing an isocyanate compound. The objective of the present invention is to provide a method for preparing an isocyanate compound using phosgene, whereby the thermal denaturation of a reac...
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WO/2022/146093A1 |
The present invention relates to an isocyanate compound preparation method. According to the present invention, provided is an isocyanate compound preparation method, which enables the thermal denaturation of a reaction product and the g...
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WO/2022/146090A1 |
The present invention relates to an isocyanate compound preparation method. The objective of the present invention is to provide an isocyanate compound preparation method, which enables the recovery and reuse of materials used in a react...
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