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WO/2022/163684A1 |
The present invention provides a modifier for resins such as polyester resins, polyester carbonate resins, and polycarbonate resins. The present invention further provides a cyclic diol compound useful as a resin modifier and a method fo...
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WO/2022/164084A1 |
The present application relates to polycarbonate comprising a unit expressed by chemical formula 1a or 1b, or by chemical formula 1c, a composition comprising the polycarbonate, and molded products produced produced from the composition.
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WO/2022/164074A1 |
The present application relates to: a polycarbonate comprising a unit represented by chemical formula 1a, and a unit represented by chemical formula 1b; a composition including same; and a molded product produced from the composition.
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WO/2022/163674A1 |
The present invention makes it possible to provide a thermoplastic resin including a constituent unit (A) derived from a monomer represented by general formula (1). [In the formula, R1s are identical or different from each other and each...
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WO/2022/164072A1 |
The present application relates to polycarbonate comprising a unit expressed by chemical formula 1, a composition comprising the polycarbonate, and molded products produced from the composition.
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WO/2022/158876A1 |
The present invention relates to a polybutylenesuccinate-carbonate crosslinked copolymer, a composite material of the crosslinked copolymer and nanocellulose, and a method for preparing same and, in particular, to: a composite material w...
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WO/2022/158606A1 |
This polycarbonate polyol has an ester bond and an urethane bond, and has an acid value of 0.01-5.0 mgKOH/g. The present invention also pertains to a production method for said polycarbonate polyol, using a transesterification catalyst, ...
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WO/2022/153149A1 |
A method of continuously producing a polyol includes: (i) feeding a solid catalyst into a continuous stirred tank reactor (CSTR); (ii) contacting a reaction mixture comprising one or more epoxides and carbon dioxide with the solid cataly...
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WO/2022/153234A1 |
In one aspect, the present disclosure encompasses a nanocomposite composition comprising a polycarbonate polyol and a nanofiller, wherein the polycarbonate polyol comprises: (a) a polycarbonate polyol derived from copolymerization of CO2...
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WO/2022/145366A1 |
Provided is a method which is for producing bisphenol A and by which a colored component derived from a polycarbonate resin can be efficiently removed, and bisphenol A having a favorable color tone can be produced. A method for produci...
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WO/2022/138409A1 |
Provided is a method for efficiently removing impurities from an aliphatic polycarbonate resin while suppressing a decrease in the mass average molecular weight of the aliphatic polycarbonate resin. More specifically, provided is a met...
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WO/2022/124817A1 |
The present invention relates to a thermoplastic resin composition, a preparation method therefor, and a molded product comprising same, and, more specifically, comprises, in a predetermined weight ratio, a polycarbonate resin having a d...
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WO/2022/117472A1 |
The present invention relates to a process for preparing a polycarbonate from a diaryl alcohol or a plurality of diaryl alcohols and a diaryl carbonate according to a melt transesterification process. In the process, at least a part of t...
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WO/2022/118171A1 |
The present invention relates to a polyalkylene carbonate, preferably PRC, and the use thereof in packaging, in coating surfaces, in cosmetics, in the biomedical or textile sector or to produce composite materials or moisture absorption ...
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WO/2022/113847A1 |
Provided is a polycarbonate resin decomposition method by which a polycarbonate resin can be decomposed with high reactivity even under mild and low-environmental-load conditions. Moreover, provided is an alkyl aryl carbonate production ...
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WO/2022/112943A1 |
A poly(oxyalkylcarbonate) includes repeating units having structures specified herein. The repeating units are derived from particular aromatic dihydroxy compounds that include an oxyalkylene linking group. The poly(oxyalkylcarbonate) ca...
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WO/2022/111849A1 |
The present invention relates to a product of internal dehydration of sorbitol, characterised in that it has a total residual nitrogen atom content of between 0.01 ppm and 150 ppm, preferably of between 0.02 ppm and 20 ppm, more preferab...
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WO/2022/107028A1 |
A polycarbonate composition includes particular amounts of a bisphenol A polycarbonate homopolymer, a first polycarbonate-siloxane copolymer having a siloxane content of 10 to 30 weight percent, based on the total weight of the first pol...
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WO/2022/107488A1 |
Provided are: a resin composition capable of providing sheets which have excellent lamination performance and give multilayered objects having excellent resistance to bending and which have excellent laser markability; and a security-car...
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WO/2022/106998A1 |
An orthodontic article is described comprising the reaction product of free-radically polymerizable resin comprising at least one dicarbonyl polymer comprising polymerized units of oxamate, oxalate, or a combination thereof and at least ...
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WO/2022/097396A1 |
Provided are: a method for producing a compound having a fluorene skeleton, the method being characterized by including a step for obtaining a compound having a fluorene skeleton and represented by formula (4) by reacting a compound repr...
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WO/2022/096889A1 |
The present invention relates to (poly)ol block copolymers having a polycarbonate or polyether carbonate, polyester and polyether or ethercarbonate blocks of structure C-B-A'-Z'-Z-(Z'-A'-B-C)n wherein n= t-1 and wherein t= the number of ...
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WO/2022/096465A1 |
In a first aspect, the present invention relates to a polymer blend, comprising: (i) 1 to 99.9 weight-% of a first polyethylene-like polymer having a repetition unit (I) within its structure [-X1-(CH2)a-X2-(CH2)b-] (I) wherein X1 is sele...
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WO/2022/096390A1 |
The present invention relates to a method for producing a polyol mixture comprising an aromatic polyether polyol and an aliphatic carbonate polyol by reacting an aromatic carbonate containing one or more aromatic carbonate group(s) with ...
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WO/2022/092176A1 |
Provided is a production method for a bisphenol or the like by using a chemical recycling method that is moderate, has a small environmental load, and enables efficient degradation of a polycarbonate resin. Provided is a method for produ...
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WO/2022/091996A1 |
The present invention makes it possible to provide a thermoplastic resin including a constituent unit (A) derived from a monomer represented by general formula (1). (In general formula (1), R1 and R11 each independently represent a hydro...
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WO/2022/084115A1 |
The invention relates to a process for preparing polyether carbonate alcohols using the following steps: (i) addition of cyclic carbonate to a H-functional starter substance in the presence of a catalyst A for forming a mixture containin...
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WO/2022/077450A1 |
A polycarbonate, a preparation method therefor and the use thereof. The polycarbonate contains a repeating unit having a specific structure, and the repeating unit comprises a dithionaphthalene group, such that the polycarbonate has a hi...
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WO/2022/080938A1 |
The present invention relates to a polycarbonate having superior mechanical properties and excellent flame retardancy, heat resistance, hardness, and impact resistance, and a method for preparing same, the polycarbonate comprising: a dio...
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WO/2022/080491A1 |
A polycarbonate polyol which is represented by formula (A-1). (In formula (A-1), R1 represents a hydrogen atom, an alkyl group or a hydroxyalkyl group; R2 represents an alkanediyl group; and each of n and m represents an integer of 1 or ...
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WO/2022/075328A1 |
The present invention provides a polycarbonate resin composition which exhibits, in addition to good strength and low dielectric characteristics, excellent long-term durability and good adhesion to a metal thin film during the formation ...
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WO/2022/065331A1 |
The present invention provides, for example, a method for efficiently producing polysiloxane having a siloxane constituent unit while making it possible to improve safety and reduce environmental burden. This is achieved by a method co...
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WO/2022/065329A1 |
The problem of the present invention is to provide: a thermoplastic resin having excellent heat resistance and excellent flame retardancy and having a siloxane constituent unit, particularly a thermoplastic resin suitable for optical app...
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WO/2021/208234A9 |
A solvent-free adhesion-promoting chain extender, a preparation method therefor, and an application thereof. The preparation method comprises the following steps: mixing an aromatic vinyl monomer, an acrylate-based monomer, an initiator,...
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WO/2022/042841A1 |
The invention relates to a curable composition including (a) a component having one or more carbonyl group-containing compounds having a number average molecular weight (Mn) of at least 500 g/mole, wherein each carbonyl group is independ...
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WO/2022/038883A1 |
The object of the present invention is to provide a polycarbonate-polysiloxane resin having excellent transparency, impact resistance, heat resistance, moldability, and pencil hardness as well as a low specific gravity. The present inven...
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WO/2022/038893A1 |
The purpose of the present invention is to provide: a curable resin that has a specific structure; and a cured product and the like, which has excellent flame retardancy, heat resistance (high glass transition temperature), and dielectri...
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WO/2022/034898A1 |
The problem is to provide: a thermoplastic resin composition of which the change in transmissivity, particularly the change in transmissivity in a short-wavelength region, upon the addition of an additive or the like can be reduced; and ...
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WO/2022/031726A2 |
A system optionally including a carbon oxide reactor. A method for carbon oxide reactor control, optionally including selecting carbon oxide reactor aspects based on a desired output composition, running a carbon oxide reactor under cont...
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WO/2022/025243A1 |
The present invention is a polycarbonate resin composition containing: a polycarbonate resin (S) including a polycarbonate-polyorganosiloxane copolymer (A) that includes a polycarbonate block (A-1) comprising specific repeating units and...
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WO/2022/025071A1 |
Provided is a compound represented by general formula (1). (In general formula (1), Ar1 and Ar2 independently represent groups selected from (AA), R1 to R6 represent hydrogen atoms, hydrocarbon groups, or heteroatom-containing hydrocarbo...
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WO/2022/024073A1 |
Flame-retardant compositions, methods of making the compositions, and composites containing the compositions are described. The flame-retardant composition can contain 10 wt. % to 85 wt. % of a first poly(carbonate-siloxane) copolymer, 1...
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WO/2022/017894A1 |
The present invention relates to a process for the production of polycarbonates from waste plastics feedstocks comprising the steps in this order of: (a) providing a hydrocarbon stream A obtained by hydrotreatment of a pyrolysis oil prod...
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WO/2022/017897A1 |
The present invention relates to a process for the production of polycarbonates from waste plastics feedstocks comprising the steps in this order of: (a) providing a hydrocarbon stream A obtained by treatment of a waste plastics feedstoc...
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WO/2022/008919A1 |
A process for the ring-opening copolymerisation of epoxides with carbon dioxide for the preparation of a polycarbonate is described. Also described are catalysts useful in the aforementioned process. The heterobimetallic catalysts presen...
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WO/2021/254892A1 |
The present invention relates to a process for preparing a polyester carbonate on the basis of cycloaliphatic diacids and at least one 1,4:3,6-dianhydrohexitol and at least one further aliphatic dihydroxy compound, to the polyester carbo...
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WO/2021/254893A1 |
The present invention relates to a process for preparing a polyester carbonate on the basis of cycloaliphatic diacids and at least one 1,4:3,6-dianhydrohexitol and at least one additional aliphatic dihydroxy compound, to the polyester ca...
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WO/2021/254894A1 |
The present invention relates to a process for preparing a polyester carbonate on the basis of cycloaliphatic diacids and at least one 1,4:3,6-dianhydrohexitol and at least one further aliphatic dihydroxy compound, to a polyester carbona...
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WO/2021/249814A1 |
The invention relates to a method for producing polyether carbonate polyols via the addition of alkylene oxide and carbon dioxide to a H-functional starter substance in the presence of a DMC catalyst or a metal complex catalyst based on ...
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WO/2021/249815A1 |
The invention relates to a process for producing polyether carbonate polyols by addition of alkylene oxide and carbon dioxide to an H-functional starter substance in the presence of a DMC catalyst or a metal complex catalyst on the basis...
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