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Matches 1 - 50 out of 2,698

Document Document Title
WO/2019/155169A1
The present invention relates to difunctional biphenyl compounds according to formula (I): in which Alk, Alk' and R are as defined in the description. Said compounds are suitable for use as curing agents for thermosetting resins, particu...  
WO/2019/145380A1
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...  
WO/2019/134909A1
The invention relates to a method for producing methylene-diphenylene-diisocyanate and optionally a mixture of methylene-diphenylene-diisocyanate and polymethylene-polyphenylene-polyisocyanate, wherein, in a step α), a fraction (142) co...  
WO/2019/131855A1
Provided is a method for collecting a compound represented by general formula (III) (in the formula, R31 is a monovalent to trivalent organic group and n31 is an integer 1-3) from a liquid phase component that is formed as a by-product i...  
WO/2019/132491A1
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...  
WO/2019/115213A1
The present invention relates to a plant for preparing a purified isomeric methylene diphenyl diisocyanate monomer from a mixture of different isomeric monomers, wherein the plant comprises a distillation apparatus, which comprises: a) a...  
WO/2019/104888A1
Disclosed is an imine-type quaternary ammonium salt catalyst, wherein the catalyst has a general structure formula shown by formula I below; in the formula, R1 and R2, respectively, are independently selected from C1-C20 linear alkyl or ...  
WO/2019/076099A1
Disclosed are a light color modified isocyanate mixture and a preparation method therefor. The method comprises the following steps: a) reacting isocyanate groups of a raw material isocyanate under the action of a phosphorus heterocyclic...  
WO/2019/063295A1
The present invention relates to a process for the preparation of organic diisocyanates by cleaving the corresponding diurethanes into the diisocyanate and a hydroxy compound and separating the diisocyanate from the hydroxy compound by d...  
WO/2019/063296A1
The present invention relates to a multistep process for the preparation of organic diisocyanates by converting the corresponding diamine precursors, urea and hydroxy compounds into monomeric diurethanes, converting these diurethanes int...  
WO/2019/057448A1
The invention relates to an at least partly blocked polyisocyanate (BP) which is obtained by reacting a polyisocyanate (P) with at least one thermally disassociating blocking agent (BM). The polyisocyanate (P) has a general formula selec...  
WO/2019/057540A1
The invention relates to a novel method for producing polyisocyanates of (cyclo)aliphatic diisocyanates which are flocculation-stable in solvents and which comprise isocyanurate groups.  
WO/2019/057539A1
The present invention relates to novel colour-stable compositions containing polyisocyanates of (cyclo) aliphatic diisocyanates.  
WO/2019/048371A1
The invention relates to a method for cleaning a phosgene-conducting apparatus by pressurization with ammonia gas to constant pressure. In this way, phosgene residues in the apparatus to be cleaned are decomposed effectively.  
WO/2019/048644A1
The present invention provides a process for quenching, in a quenching zone, a gaseous reaction mixture comprising a diisocyanate, phosgene and hydrogen chloride that is obtained in a reaction zone upstream of the quenching zone by phosg...  
WO/2019/050236A1
The present invention relates to a method for preparing a high-purity aliphatic isocyanate comprising an aliphatic polyisocyanate, wherein in the method, the occurrence of side reactions or the production of byproducts can be suppressed....  
WO/2019/048386A1
The invention relates to a method for cleaning a phosgene conducting apparatus, comprising: washing the apparatus with hot inert gas, followed by washing the apparatus with cold inert gas; conveying gaseous ammonia for breaking down phos...  
WO/2019/043180A1
The invention relates to a method for producing an isocyanate, wherein a carbamate or thiolcarbamate is converted, in the presence of a catalyst, with separation of an alcohol or thioalcohol, at a temperature of at least 150 °C, to the ...  
WO/2019/026425A1
Provided is a flow reactor with which safety can be ensured even if a leak occurs at a line connecting part. The flow reactor is provided with at least one line structure that comprises a feedstock supply line, a reactor section for reac...  
WO/2018/224529A1
The invention relates to a method for producing isocyanates by phosgenating the corresponding primary amines in the gas phase, wherein the raw gaseous reaction product mixture is cooled and partially condensed by being brought into conta...  
WO/2018/224530A1
The invention relates to a method for producing an isocyanate by phosgenating the corresponding primary amine in the gas phase, wherein the gaseous reaction product mixture is cooled by being brought into contact with at least one flow o...  
WO/2018/212206A1
This isocyanate production method is characterized by having: a carbamation step for reacting a carbonic acid ester, an inorganic acid salt of an amino acid derivative, and a basic compound with one another, and obtaining a reaction mixt...  
WO/2018/212208A1
This isocyanate production method for producing an isocyanate by subjecting a carbamate to thermal decomposition has: a step for preparing a liquid mixture which includes a carbamate, an inert solvent, and a polyisocyanate compound; a st...  
WO/2018/190290A1
Provided is a xylylene diisocyanate composition including xylylene diisocyanate and a compound represented by chemical formula (1), wherein the content of the compound represented by chemical formula (1) is 0.6 ppm to 60 ppm.  
WO/2018/184980A1
The invention relates to a cleaning device for separating an organic isocyanate produced by the reaction of an organic amine with a stoichiometric excess of phosgene in the gas phase from the gaseous raw product obtained in the reaction,...  
WO/2018/185168A1
A process for preparing an aromatic isocyanate by direct carbonylation of a nitro aromatic compound by reacting the nitro aromatic compound with carbon monoxide in the presence of a catalyst, characterized in that the catalyst contains a...  
WO/2018/139808A1
The present invention relates to a non-aqueous electrolyte for a lithium secondary battery, the non-aqueous electrolyte comprising a compound acting as an HF scavenger, and to a lithium secondary battery, which has improved cycle life ch...  
WO/2018/110947A8
The present invention relates to a toluene diisocyanate purification method enabling acquisition of a product having a small amount of dimers in a final product by means of using a reactive dividing wall distillation column during toluen...  
WO/2018/124526A1
The present invention provides a production method which can produce high purity aliphatic isocyanates, especially xylene isocyanate, in a high yield through a simple method without adding a separate step by adding a side reaction inhibi...  
WO/2018/110947A1
The present invention relates to a toluene diisocyanate purification method enabling acquisition of a product having a small amount of dimers in a final product by means of using a reactive dividing wall distillation column during toluen...  
WO/2018/079502A1
This pentamethylene diisocyanate production method comprises: a reaction step for reacting carbonyl chloride and pentamethylene diamine with each other so as to obtain a reaction mixture containing pentamethylene diisocyanate and contain...  
WO/2018/076198A1
The invention relates to a polyisocyanate mixture comprising at least one polyisocyanurate which is based on tolylene diisocyanate and has isocyanate groups and at least one polyurethane which is based on tolylene diisocyanate and has is...  
WO/2018/077696A1
The invention relates to a polyisocyanate which is based on tolylene 2,4-diisocyanate, tolylene 2,6- diisocyanate or a mixture of tolylene 2,4- and 2,6-diisocyanate and has isocyanurate groups, wherein the polyisocyanate has a) a weight ...  
WO/2018/046622A1
The invention relates to a process for preparing liquid, storage-stable isocyanate mixtures having carbodiimide (CD) and/or uretonimine (UI) groups or prepolymers derived therefrom, wherein (i) in a first step a starting isocyanate which...  
WO/2018/041799A1
The invention relates to a method for producing isocyanates, according to which exhaust flows provided for the combustion are guided through an adsorption device before being supplied into the exhaust gas combustion process, and are ther...  
WO/2018/033536A1
The present invention relates to a process for producing isocyanates in process chains, each of which produce an isocyanate end product via at least one intermediate product, wherein the heat energy liberated in a first production plant ...  
WO/2017/179575A1
A xylylenediisocyanate composition comprises xylylenediisocyanate and chloromethylbenzyl isocyanate, wherein chloromethylbenzyl isocyanate is contained in an amount of 0.2 ppm or more and less than 600 ppm.  
WO/2017/174765A1
The invention relates to a method for producing xylylene diisocyanate (XDI), in particular meta-xylylene diisocyanate (mXDI), comprising the following steps: a) phosgenation of xylylene-diamine (XDA), in particular m-xylylene-diamine (mX...  
WO/2017/148795A1
The present invention relates to the use of isophthalic acid dichloride for increasing the storage stability of xylylene diisocyanate and to compositions containing xylylene diisocyanate and isophthalic acid dichloride.  
WO/2017/104709A1
Provided is a production method for an isocyanate compound such as a 3-methyl-2-methoxymethyl-1-isocyanate benzene. An isocyanate compound such as 3-methyl-2-methoxymethyl-1-isocyanate benzene can be produced at high yield as a result of...  
WO/2017/093215A1
The invention relates to the production of isocyanates by means of phosgenation of the corresponding primary amines in the gas phase, wherein the educt flows of amine and phosgene are fed separately to a reactor through a pre-heated iner...  
WO/2016/052890A3
The subject matter of the present invention is a method for preparing a composite of a nano-metal and a carbon nanomaterial, comprising the steps of: modifying the surface of a carbon nanomaterial in order to introduce a functional group...  
WO/2017/050776A1
The invention relates to a method for an economically and technically improved embodiment of a production interruption in a production method for isocyanates by phosgenation of the corresponding amines, in which the entire production pla...  
WO/2017/040569A1
A composition that includes (a) a prepolymer having at least one free isocyanate group that is capable of bonding to tissue and that cures in vivo upon exposure to water to form a polymer having a compressive modulus between 1.9 and 14.4...  
WO/2017/013154A1
The invention relates to a method for producing a cyclic isocyanate (B) on the basis of a composition (Z) which has at least one component (A) that has at least one cycloalkane ring with at least four ring carbon atoms. The cycloalkane r...  
WO/2017/001320A1
The invention relates to an improved process for making available, for an intended downstream application (i.e. for a chemical reaction), the hydrogen chloride by-product that is produced during production of an isocyanate by phosgenatio...  
WO/2016/177761A1
The present invention relates to a process for the preparation of an isocyanate compound comprising the steps of: a) Reacting an amine compound A having at least one primary amino group with CO2 and an organotin compound S having at leas...  
WO/2016/156188A1
The invention relates to a process for preparing isocyanates by carbamate dissociation, in which liquid carbamate (3) and a gaseous auxiliary (11) are introduced into a reactor (1) so that a continuous liquid phase in which the gaseous a...  
WO/2016/113240A1
The invention relates to an adhesion promoter for integrally bonding a polymeric organic material to an inorganic substrate, wherein the adhesion promoter has protected isocyanate compounds, which are represented by the following general...  
WO/2016/103283A1
The present invention provides bio-based aromatic diisocyanate of formula (I). [Formula should be inserted here] wherein X is –OCH3, Y is selected from -H or –OCH3, and m = 0-12. The present invention further provides a method for pr...  

Matches 1 - 50 out of 2,698