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Matches 1 - 50 out of 2,932

Document Document Title
WO/2018/125879A1
A method of treating an organic carbonate stream comprising passing the organic carbonate stream through a fixed bed to remove contaminants and produce a less contaminated stream wherein the fixed bed comprises a weak base.  
WO/2018/125878A1
A method of treating an organic carbonate stream comprising passing the organic carbonate stream through a fixed bed to remove contaminants and produce a less contaminated stream wherein the fixed bed comprises alumina or silica.  
WO/2018/116775A1
Provided is a method for regenerating an aromatic amide compound into the corresponding aromatic nitrile compound, the method rendering a dehydration reaction possible, in which a desired compound can be selectively obtained in a high yi...  
WO/2018/107450A1
This invention provides an electrochemical process for producing a propiolactone compound comprising reacting a compound having at least one ethylenically unsaturated carbon-carbon double bond with carbon dioxide in the presence of an el...  
WO/2018/096039A1
The present invention concerns an extract of plants from the Tagetes genus enriched with leontopodic acid B, a method for preparing such an extract and a cosmetic composition and a nutraceutical composition and a pharmaceutical compositi...  
WO/2018/097529A2
The present invention relates to a method for producing fluorine-containing dialkyl carbonate compounds, which are suitable as non-aqueous solvents for non-aqueous electrolytes used in secondary batteries. When an alkyl chloroformate and...  
WO/2018/091370A1
The invention relates to a method for the electrochemical production of aryl alkyl carbonates and diaryl carbonates, in which aromatic compounds are reacted anodically with carbonates, as well as to the use thereof to produce polycarbonate.  
WO/2018/078292A1
The invention relates to a process for the degradation of at least one polymer of an alkene carbonate, to a polymeric composition for a lithium-ion battery electrode comprising a degradation residue obtained by this process, to a process...  
WO/2018/073124A1
The invention relates to the preparation of fluorosubstituted fluoroformate from halosubstituted haloformate by reaction with at least one fluorinating agent in the presence of a catalyst. The further preparation of fluorosubstituted (fl...  
WO/2018/041602A1
The invention relates to a method for producing a polycarbonate by reacting at least one diaryl carbonate with at least one aromatic hydroxy compound, which are first mixed in a mixing device and, as a raw material mixture, placed in a r...  
WO/2018/041360A1
The invention relates to a method for producing dialkyldicarbonates from the corresponding chloroformic acid alkyl esters using special tertiary amines as catalysts.  
WO/2018/028505A1
A catalyst for synthesizing dimethyl carbonate by oxidative carbonylation of liquid phase methanol and preparation method. The catalyst comprising: a copper halide and an ionic liquid. The mass ratio of the copper halide to the ionic liq...  
WO/2018/016377A1
Provided is a method for producing a chloroformate compound safely, with high efficiency and in a large quantity. A chloroformate compound can be produced by mixing a solution of triphosgene, an amine and an alcohol compound together in ...  
WO/2017/221908A1
Provided is a method that enables a dehydration reaction by which an aimed compound is able to be selectively obtained at high yield by suppressing the generation of a by-product in the regeneration of an aromatic amide compound to a cor...  
WO/2017/212289A1
The present invention relates to a method of reducing, cleaving and/or coupling at least one C=O, C-O, C=C or C=N bond of a compound, using a reagent comprising a stannyl cation.  
WO/2017/206692A1
An organic amine salt compound having the general formula (I): An-[Bm+]p. In the formula, An- is anions having -n valence serving as CO2 donors, wherein n = 1, 2, or 3; Bm+ is or contains: ammonium ions and/or organic amine B cations; m ...  
WO/2017/167705A1
A method for the manufacture of perfluorinated compounds is herein disclosed. In particular, the method is useful for the manufacture of perfluorooxyalkyl carboxylic acid salts which can be used as surfactants. The method envisages the f...  
WO/2017/160044A2
The present invention provides a catalyst composition containing an imidazolium halide and a zinc halide in an alkylene carbonate solvent, a method for preparing the catalyst composition, and a method for preparing an alkylene carbonate ...  
WO/2017/142028A1
A metal-supported macromolecule and a use thereof as a catalyst, said metal-supported macromolecule being obtained by causing a ligand to react with a zinc compound or a cobalt compound, said ligand having an imidazole group that is bond...  
WO/2017/125759A1
This invention relates to aprocess for the preparation of glycerolcarbonate from the reaction of glycerol and a dialkylcarbonate, for example dimethyl carbonate, or a cyclic alkylene carbonate. More specifically, the invention relates to...  
WO/2017/112625A1
A process for producing an oligomer comprising contacting a dialkyl carbonate and a dihydroxy compound in a reaction zone in the presence of an oligomerization catalyst under oligomerization conditions to form the oligomer wherein the mo...  
WO/2017/112622A1
A process for producing an oligomer comprising contacting a alkylaryl carbonate and a dihydroxy compound in a reaction zone in the presence of an oligomerization catalyst under oligomerization conditions to form the oligomer wherein the ...  
WO/2017/108672A1
The invention relates to a process for reactivating a used catalyst, wherein the used catalyst is a homogeneous catalyst comprising titanium, tin or lead and one or more ligands, which has been used in a process for preparing an aromatic...  
WO/2017/112627A1
A process for producing polycarbonate comprising: a) contacting a dialkyl carbonate with a dihydroxy compound in an oligomerization zone in the presence of an oligomerization catalyst under oligomerization conditions to form a first inte...  
WO/2017/104849A1
A bischloroformate composition characterized by being represented by general formula (1) and comprising a plurality of Ar components, and in that the average number of monomers (m1) obtained by the equation (Eq. 1) is 1.0 to 1.99 inclusi...  
WO/2017/096562A1
The present invention discloses a method for manufacturing a carbonate diester, wherein a liquid catalyst used in the production of the carbonate diester from reaction of an alcohol, carbon monoxide and oxygen is included. The liquid cat...  
WO/2017/093974A1
In an embodiment, a method of purifying an aromatic alcohol comprises melt polymerizing a dihydroxy compound and a carbonate compound in the presence of a transesterification catalyst to form the aromatic alcohol and a polycarbonate in a...  
WO/2017/093472A1
The invention relates to a method for producing organic carbonates (R1O2)CO by means of a catalysed reaction of appropriate alcohols R1OH with carbon dioxide, the starting products of the reaction including, as well as ROH and carbon dio...  
WO/2017/090617A1
A production method is provided which makes it possible to react an alcohol and a halocarbonate ester compound to produce an asymmetric chain carbonate with a high conversion rate and selectivity. This production method of asymmetric cha...  
WO/2017/089441A1
A process for preparing a diaryl carbonate from a dialkyl carbonate and an aryl alcohol is disclosed. The process takes place in apparatus comprising at least two distillation columns, and at least one of the distillation columns is oper...  
WO/2017/065147A1
Diaryl carbonate containing less than 1,000 mass ppm of a compound represented by formula (I), and a method for producing the diaryl carbonate. (In the formula, R1 is a hydrogen atom, halogen atom, alkyl group, alkoxy group, aryl group, ...  
WO/2017/051363A1
The present invention relates in general terms to a new process for the preparation of organic carbonate derivatives, cyclic or linear by a trans carbonation reaction between PCC and a suitable aliphatic alcohol, in the presence of a hom...  
WO/2017/035734A1
A process is provided f or producing dimethyl carbonate with high conversion rate. Alkylene glycol reacts with urea via alcohylysis reaction to produce alkylene carbonate and ammonia. The alkylene carbonate produced reacts with methanol ...  
WO/2017/001365A1
A process for degreasing a chemical plant is disclosed. The vessels and process lines are rinsed with a solvent comprising at least 50wt% dialkyl carbonate, based upon the weight of the solvent.  
WO/2017/004455A1
The present invention provides terephthalic acid in which two of the aromatic ring carbons are derived from ethanol. The present invention also provides PET, PTT, and PBT polymer compositions, and plastic molding compositions and manufac...  
WO/2016/208709A1
A method for producing a 1-(acyloxy)alkyl carbamate derivative (III) using a fluorous alkyl carbonate derivative (I), and a fluorous alkyl carbonate derivative (I) and a method for producing the same. In the formulae: R1 represents a C1-...  
WO/2016/157218A1
The present invention discloses a process for recovery and regeneration of rare earth metals or salts thereof used as catalyst and which is conveniently integrated within the overall flow sheets of manufacturing dialkyl carbonates. Alkyl...  
WO/2016/151602A3
The patent discloses a process for the synthesis of dialkyl carbonates catalysed by a catalyst composition AB oxides, wherein A and B are rare earth metals or A and B are combination of rare earth and transition metals with ratios rangin...  
WO/2016/151602A2
The patent discloses a process for the synthesis of dialkyl carbonates catalysed by a catalyst composition AB oxides, wherein A and B are rare earth metals or A and B are combination of rare earth and transition metals with ratios rangin...  
WO/2016/151487A1
In an embodiment, a method for producing an alkyl aryl carbonate, comprises producing a dialkyl carbonate azeotrope stream comprising a dialkyl carbonate and an unreacted alkanol; purifying the dialkyl carbonate azeotrope stream in a dia...  
WO/2016/151488A1
In an embodiment, a method for producing an alkyl aryl carbonate, comprises providing a purified dialkyl carbonate stream and a first purified alkanol stream; reacting the purified dialkyl carbonate stream to produce a diaryl carbonate s...  
WO/2016/151602A4
The patent discloses a process for the synthesis of dialkyl carbonates catalysed by a catalyst composition AB oxides, wherein A and B are rare earth metals or A and B are combination of rare earth and transition metals with ratios rangin...  
WO/2016/147204A1
The present invention discloses an improved catalyst free process for synthesis of alkyl carbamates in an integrated system comprising a tubular reactor and a striper. The process comprises reacting urea and an alcohol in said tubular re...  
WO/2016/139161A1
The present invention relates to a new process for preparing 3-chloro-2-vinylphenylsulfonate derivatives.  
WO/2016/137067A1
A method for preparing dialkyl carbonate, according to the present invention, comprises the step of reacting cyclic alkylene carbonate and aliphatic alcohol in the presence of a catalyst represented by chemical formula (1) of the descrip...  
WO/2016/137066A1
A method for preparing dialkyl carbonate, according to the present invention, comprises the step of reacting cyclic alkylene carbonate and aliphatic alcohol in the presence of a catalyst comprising a samarium compound represented by chem...  
WO/2016/113323A1
The invention relates to a process for preparing an aromatic carbonate, comprising reacting a dialkyl carbonate or an alkyl aryl carbonate with an aryl alcohol or an alkyl aryl carbonate, resulting in an aromatic carbonate which is an al...  
WO/2016/108364A1
A tin compound of the present invention is characterized by being represented by chemical formula 1 in the specification. When preparing aromatic carbonate from dialkyl carbonate by using the tin compound as a catalyst, it is possible to...  
WO/2016/104760A1
Provided is a carbonate-ester purification apparatus which is provided with: a processing unit which mixes an alcoholic solution of a metal alcoholate, and a first solution including a carbonate ester and an acidic substance, to obtain a...  
WO/2016/104758A1
Provided is a carbonate-ester purification apparatus (200) which is provided with: a first distillation column (20) into which either alcohol and a first solution including a carbonate ester and formaldehyde, or a first solution includin...  

Matches 1 - 50 out of 2,932