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WO/2024/095104A1 |
A method of converting poly(ethylene terephthalate) to terephthalic acid includes a glycolysis step in which poly(ethylene terephthalate) is reacted with ethylene glycol in the presence of a specific catalyst, a hydrolysis step in which ...
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WO/2024/094564A1 |
The invention relates to picolyl ligands and their use in alkoxycarbonylation.
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WO/2024/095995A1 |
The purpose of the present invention is to provide: an ester-compound-containing composition that can be efficiently produced, and that has excellent storage stability; a method for producing the composition; and a polymerizable composit...
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WO/2024/095043A1 |
A process of producing high-purity C1-C2 alkyl acetates comprising introducing a feed stream comprising acetic acid, a C1-C2 aliphatic alcohol, and an acid catalyst to a reactive extraction column, contacting the feed stream with an extr...
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WO/2024/094637A1 |
The present invention relates to a process for the preparation of cyclobutenone derivatives of formula (1), wherein Y is O or NH, R is -C(O)-R1 or -S(0)2-R1, and R' is selected from optionally substituted linear or branched C1-12 alkyl, ...
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WO/2024/095957A1 |
The purpose of the present invention is to provide: an ester compound-containing composition having excellent storage stability, and a method for producing same; a polymerizable composition; and a (meth)acrylic polymer and a method for p...
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WO/2024/094568A1 |
The invention relates to methoxypyridyl ligands and their use in alkoxycarbonylation.
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WO/2024/090423A1 |
The purpose of the present invention is to provide: a composition which contains a novel compound that has excellent handling properties; and a production method, use or the like of this composition. The present invention provides a (met...
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WO/2024/088279A1 |
Disclosed in the present invention is a synthesis method for a 4-methylthio-3-aldehyde-2-methylbenzoate topramezone intermediate represented by general formula V. The reaction synthesis route thereof is as follows: R is an ester, carboxy...
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WO/2024/090544A1 |
The purpose of the present invention is to provide a methacrylate–containing composition that has high quality stability during storage. The methacrylate-containing composition according to one example contains methacrylate, a compou...
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WO/2024/089252A1 |
A process for the manufacture of an acrylic ester selected from n-butyl acrylate and 2-ethylhexyl acrylate comprises subjecting a feedstock comprising a renewably-sourced ethanol to dehydration to produce a renewably-sourced ethylene str...
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WO/2024/089565A1 |
Antifouling compositions are provided. The antifouling compositions include a dispersing agent including an imidazoline, a solvator including a phthalate, and a promoter agent including an acylamide. Methods of mitigating fouling caused ...
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WO/2024/089256A1 |
A process for the manufacture of isononanol, comprises subjecting a feedstock comprising a renewably-sourced ethanol to dehydration to produce a renewably-sourced ethylene stream. The renewably-sourced ethylene stream is subjected to an ...
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WO/2024/091896A1 |
Provided is a facile process for preparing dimethyl terephthalate, the process comprising treating a polyester stream with a C4-C14 alkanol in the presence of an esterification or transesterification catalyst in order to depolymerize the...
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WO/2024/089254A1 |
A process for the manufacture of citral comprises subjecting a feedstock comprising a renewably-sourced ethanol to dehydration to produce a renewably-sourced ethylene stream. The renewably-sourced ethylene stream is subjected to an olefi...
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WO/2024/083934A1 |
The present invention relates to a method for preparing 1,4-butanediol diesters of the formula (I), (I), where R1 is methyl or ethyl; by reacting 1,4-butanediol with an acylating agent in the absence of any acylation promoters selected f...
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WO/2024/083048A1 |
The present invention relates to a catalyst for preparing methyl acetate from dimethyl ether and/or methanol by means of carbonylation. The catalyst comprises a first catalyst layer which contains a metal loaded on a carrier material and...
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WO/2024/083324A1 |
The invention relates to a method for the depolymerisation of polyethylene terephthalate (= „PET"), in which PET is reacted in a mixture containing glycol and MAOR to form bis(2-hydroxyethyl) terephthalate (= „BHET"; CAS-No.: 959-26-...
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WO/2024/083322A1 |
The invention relates to a method for the depolymerisation of polyethylene terephthalate (= „PET"), in which PET is reacted in a mixture containing glycol and MAOR to form bis(2-hydroxyethyl) terephthalate (= „BHET"; CAS-No.: 959-26-...
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WO/2024/083889A1 |
The present invention relates to polyol-derived compounds and processes preparing the same.
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WO/2024/084149A1 |
The present invention relates to the production of butyl acrylate by direct esterification of acrylic acid with butanol, this reaction being catalyzed by sulfuric acid. More specifically, it relates to an improved process for producing b...
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WO/2024/083323A1 |
The invention relates to a method for the depolymerisation of polyethylene terephthalate (= „PET"), in which PET is reacted in a mixture with glycol and electrolytically produced alkali metal alcoholate, in particular lithium, sodium o...
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WO/2024/083724A1 |
The present invention relates to a solid material mainly composed of BHET having a crystal form with a particular X-ray diffraction diagram, a method for the preparation thereof, a composition comprising said material, and the use of sai...
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WO/2024/081354A1 |
Described are compositions and methods for inhibiting and retarding polymerization of a monomer composition, which use a naphthoquinone and a hydroxylamine. When present in a monomer-containing composition, the combination of the naphtho...
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WO/2024/077796A1 |
Disclosed is a production method for ethyl 8-chlorooctanoate in the field of medicine or pesticide manufacturing. A dual catalyst containing potassium bromide or sodium bromide and polyethylene glycol is used, and an alkylation reaction ...
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WO/2024/013382A9 |
It relates to a process for preparing a compound of formula (I), or a pharmaceutically or a cosmetically acceptable salt thereof, or a stereoisomer of any of them, wherein: R' is selected from the group consisting of H, (C1-C6)-alkyl, an...
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WO/2024/076125A1 |
The present invention provides a method for preparing an ester-based composition that can improve heat transfer performance, reactor productivity, and total reactor productivity through control of operating conditions when producing an e...
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WO/2024/076522A1 |
Primarily monounsaturated triglyceride-containing, biologically-derived oils and methods for producing them from triglyceride-containing seed oils are produced by converting polyunsaturated triglyceride feedstocks into mono-unsaturated f...
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WO/2024/071915A1 |
A polymerization raw material comprising recycled bis(2-hydroxyethyl) terephthalate in which the content of an acetate-based ester compound and a diethylene glycol ester compound have been adjusted to a specific level, the polymerization...
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WO/2024/071035A1 |
The present invention prevents ignition and explosion in a connecting pipe. A regeneration system 1 in the present invention comprises: a thermal decomposition apparatus 10 for thermally decomposing scraps of molded bodies obtained by ...
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WO/2024/071421A1 |
Provided is a method for producing 2-O-trans-caffeoylhydroxycitric acid, the method including a step in which coriander is immersed in a polar solvent to extract 2-O-trans-caffeoylhydroxycitric acid with the polar solvent.
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WO/2024/066532A1 |
A method for preparing a diester by oxidative carbonylation of an olefin and carbon monoxide, which comprises the following steps: carrying out an oxidative carbonylation reaction on olefin and carbon monoxide in an oxygen-containing atm...
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WO/2024/071036A1 |
The present invention addresses the problem of preventing the blockage of pipes and preventing combustion and explosion. The present invention relates to a regeneration system 1 that is for regenerating methyl (meth)acrylate from scrap...
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WO/2024/060641A1 |
The present invention provides a cyclotriarylphosphine ligand represented by general formula (I), and a method for preparing same. The present invention also provides a complex of palladium in coordination with the cyclotriarylphosphine ...
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WO/2024/062008A1 |
The present invention relates to the field of organic synthesis. More particularly, it provides a continuous process for the transesterification of a compound comprising at least one C1-4 carboxylic ester group in a presence of a C1-4 al...
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WO/2024/063093A1 |
The purpose of the present invention is to provide an ester-compound-containing composition that has excellent storage stability and a method for producing the same, and methods for producing a polymerizable composition and a (meth)acryl...
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WO/2024/056890A1 |
The production method comprises the steps of: • - pyrolyzing the feed material in a pyrolysis reactor (4) so as to generate a gas stream, the feed material travelling from an inlet of the pyrolysis reactor (4) to an outlet of the pyrol...
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WO/2024/059331A1 |
The present application discloses an erythritol analog of phenylbutyrate, and compositions including same. Also disclosed are methods of using the erythritol analog of phenylbutrate.
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WO/2024/057790A1 |
A method for manufacturing a catalyst for manufacture of vinyl acetate, the catalyst containing a carrier, copper, palladium, gold, and an acetate, wherein the method comprises, in the following order: step 1) a step for impregnating the...
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WO/2024/057789A1 |
A method for producing a catalyst for vinyl acetate production comprising a support, copper, palladium, gold, and an acetic acid salt, the method comprising, in the following order, step 1, in which an alkali solution is infiltrated into...
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WO/2024/053927A1 |
The present invention pertains to a method for producing terephthalic acid in an eco-friendly manner using waste polyester. Specifically, according to an embodiment of the present invention, the method for producing terephthalic acid com...
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WO/2024/052346A1 |
Subject matter of the present invention is a method for the production of fatty alcohols from alternative, renewable natural raw materials, the use of the fatty alcohols to produce surfactant intermediates or surfactants and a fatty alco...
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WO/2024/053545A1 |
The present invention addresses the problem of realizing a high recovery rate even when the raw material supply rate is particularly high. The present invention pertains to a regenerated methyl(meth)acrylate production method comprisin...
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WO/2024/053502A1 |
The present invention provides: a method for producing an α-chloroacrylic acid ester with excellent productivity or the like; and the like. The present invention discloses a method for producing a compound that is represented by formula...
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WO/2024/053955A1 |
According to a method for producing bis(2-hydroxyethyl)terephthalate by recovering and reusing ethylene glycol with an acetate removed, after the glycolysis of a waste polyester, an acetate is not concentrated even though ethylene glycol...
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WO/2024/050894A1 |
A synthesis method for tetraoctyl pyromellitate. The synthesis method comprises: feeding pyromellitic acid and isooctyl alcohol as raw materials into an esterification reaction kettle, adding a catalyst, i.e. B2O3/ZrO2-Al2O3 thereto, hea...
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WO/2024/053928A1 |
The present invention relates to a method for preparing terephthalic acid, and terephthalic acid prepared therefrom. Specifically, according to one embodiment of the present invention, by including the step of hydrolyzing a compound prep...
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WO/2024/048703A1 |
Provided is a catalyst precursor with which it is possible to manufacture a catalyst having a high yield of an α,β-unsaturated carboxylic acid, or a catalyst molded article. The abovementioned problem is solved by: a catalyst precurs...
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WO/2024/045034A1 |
Disclosed in the present invention is a method for dehydrogenation esterification of an aryl phenol and an aromatic aldehyde by means of a light/nickel dual-catalysis system in the absence of an oxidant and an external photosensitizer. S...
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WO/2024/042132A1 |
The present invention relates to a method for preparing 4-hydroxy-2-methylene-butanal, 4-hydroxy-2-methyl-but-2-enal and esters thereof of the formula( I.a) and (I.b) where R1 is as defined in the claims and the description, by subjectin...
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