Login| Sign Up| Help| Contact|

Patent Searching and Data


Matches 1 - 50 out of 2,672

Document Document Title
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/2018/124526A1
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/2018/110947A8
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/2018/110947A1
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/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...  
WO/2016/095128A1
A surfactant and a method of forming the surfactant having the formula (I) where a is an integer from 1 to 10, b is an integer from 0 to 10, R1 is –CH3 or -H, n is an integer from 0 to 20, and R2 is a moiety selected from the group con...  
WO/2016/098561A1
By reacting 3-methyl-2-methoxymethyl aniline, etc. with a phosgene compound in the presence of a tertiary amine at 10°C-14°C in at least one kind of solvent selected from a group consisting of chlorobenzene and ortho-dichlorobenzene, a...  
WO/2016/052890A2
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/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/2015/155365A3
The invention relates to a method for producing the isomers 1,3- and/or 1,4-xylylene diisocyanates by reacting the corresponding 1,3- and/or 1,4-xylylene diamines with phosgene in the gaseous phase.  
WO/2015/155367A1
The invention relates to a composition for producing transparent polythiourethane bodies, containing or consisting of A) a polyisocyanate component that contains at least one polyisocyanate having an isocyanate group functionality of at ...  
WO/2015/155366A1
The invention relates to a composition for producing transparent polythiourethane bodies containing or consisting of A) a polyisocyanate component containing at least one polyisocyanate with a functionality of isocyanate groups of at lea...  
WO/2015/149381A1
Disclosed are a solvent refining method for isocyanate prepared by the phosgene method and multistage absorbing towers used in same. Solvent to be refined which contains water, iron, and/or phosgene , hydrogen chloride and other material...  
WO/2015/144658A1
The invention relates to a method for preparing isocyanates by the phosgenation of the corresponding amines in which problems resulting from the formation of deposits in apparatuses of the reaction segment during activation (starting) an...  

Matches 1 - 50 out of 2,672