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WO/2023/011307A1 |
Disclosed are a polycarbonate and a preparation method therefor and an application thereof. The polycarbonate comprises at least one of structural units selected from a structural unit represented by formula (I) and a structural unit rep...
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WO/2023/010689A1 |
Disclosed is a plastic hydrolysis method implemented using a binuclear metal coordination complex catalyst. The plastic hydrolysis method comprises the following step: in an alkaline aqueous solution, in the presence of a catalyst, carry...
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WO/2023/006512A1 |
The present invention relates to a multi-stage method for continuously preparing a polysiloxane-polycarbonate block copolymer by means of polycondensation, the method being characterised in that, in a first stage, an oligocarbonate and a...
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WO/2023/006517A1 |
The present invention relates to a continuous method for preparing a polysiloxane-polycarbonate block copolymer by means of polycondensation, said method being characterised by the use of at least one thin-film evaporator, said at least ...
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WO/2023/280607A1 |
The present invention relates to an aromatic polycarbonate containing: A) structural units with free COOH functionality which are derived from a hydroxybenzoic acid and are present as end groups, and B) structural units derived from a hy...
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WO/2023/282559A1 |
The present invention relates to a hydroxyphenyl-terminated polysiloxane, to a polysiloxane-polycarbonate copolymer comprising same as a repeating unit, and to a method for preparing the copolymer and, more specifically, to a polysiloxan...
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WO/2022/269512A1 |
In one aspect, the present invention encompasses blends of structurally different polycarbonate polyols, resulting polyurethanes derived from such blends of polyols, methods of making such polyurethane compositions, and coatings and adhe...
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WO/2022/270367A1 |
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-R12, Rk, and Rp each independently represent...
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WO/2022/260078A1 |
The present invention is: [1] a polycarbonate resin composition containing a polyester resin (B) and a polycarbonate resin (S) that includes a polycarbonate-polyorganosiloxane copolymer (A) having a polyorganosiloxane block (A-1) contain...
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WO/2022/260125A1 |
[Problem] To provide a polycarbonate which has excellent heat resistance. [Solution] A polycarbonate according to the present invention has a constituent unit that is represented by formula (1). (In the formula, each of R1 to R13 indepen...
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WO/2022/260417A1 |
The present invention relates to a polycarbonate copolymer having improved hardness while maintaining impact strength. The polycarbonate copolymer including a specific ester repeating unit according to the present invention is characteri...
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WO/2022/260077A1 |
The present invention is: [1] a polycarbonate resin composition containing an elastomer (B) and a polycarbonate resin (S) that includes a polycarbonate-polyorganosiloxane copolymer (A) having a polyorganosiloxane block (A-1) containing a...
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WO/2022/260079A1 |
The present invention is: [1] a polycarbonate resin composition containing an inorganic filler (B) and a polycarbonate resin (S) that includes a polycarbonate-polyorganosiloxane copolymer (A) having a polyorganosiloxane block (A-1) conta...
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WO/2022/260076A1 |
The present invention is: [1] a polycarbonate resin composition containing a fire retardant (B) and a polycarbonate resin (S) that includes a polycarbonate-polyorganosiloxane copolymer (A) having a polyorganosiloxane block (A-1) containi...
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WO/2022/260073A1 |
The present invention is: [1] a polycarbonate resin composition containing a styrene resin (B) and a polycarbonate resin (S) that includes a polycarbonate-polyorganosiloxane copolymer (A) having a polyorganosiloxane block (A-1) containin...
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WO/2022/260075A1 |
The present invention is: [1] a polycarbonate resin composition containing an ultraviolet absorber (B) and a polycarbonate resin (S) that includes a polycarbonate-polyorganosiloxane copolymer (A) having a polyorganosiloxane block (A-1) c...
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WO/2022/260074A1 |
The present invention is: [1] a polycarbonate resin composition containing a mold release agent (B) and a polycarbonate resin (S) that includes a polycarbonate-polyorganosiloxane copolymer (A) having a polyorganosiloxane block (A-1) cont...
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WO/2022/253724A1 |
Disclosed herein is a reactor for the manufacture of interfacial polycarbonate by reacting phosgene and one or more bisphenols in a liquid phase, the reactor comprising a reactor vessel and reactor internals, wherein at least part of the...
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WO/2022/251137A1 |
The present disclosure provides thermoreversible polymers, hydrogel compositions comprising the thermoreversible polymers, as well as methods of making and using the thermoreversible polymers. In some cases, the thermoreversible polymer ...
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WO/2022/244850A1 |
The present invention relates to a polyurethane resin composition that contains an isocyanate group-terminated urethane prepolymer (E) and a neutralizer (F). The isocyanate group-terminated urethane prepolymer (E) contains a reaction pro...
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WO/2022/245077A1 |
The present application relates to a resin including a unit represented by formula 1, a method for producing same, a resin composition comprising same, and a molded product comprising the resin composition.
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WO/2022/245074A1 |
The present application relates to a resin comprising a unit represented by chemical formula 1, a method for manufacturing same, a resin composition comprising same, and a molded product comprising the resin composition.
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WO/2022/245079A1 |
The present application relates to a resin comprising a unit represented by chemical formula 1, a preparation method therefor, a resin composition comprising same, and a molded product comprising the resin composition.
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WO/2022/244856A1 |
A method for producing a polycarbonate, wherein a dihydroxy component which is composed of at least one nonaromatic dihydroxy compound that is selected from among alicyclic dihydroxy compounds (which may contain an ether oxygen atom) and...
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WO/2022/238892A1 |
Process for the preparation of a functionalized terpolymer having general formula (I): in which: - R1 and R2, the same or different from each other, represent a hydrogen atom; or they are selected from C1-C30 alkyl groups, preferably C1-...
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WO/2022/238285A1 |
The present invention relates to polyurethane cast elastomers, obtainable from the reaction of at least one NCO-terminated prepolymer (A) obtainable from the reaction of (A1) at least one polyisocyanate comprising at least two isocyanate...
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WO/2022/227459A1 |
Disclosed are a polycarbonate and a synthesis method therefor, and a rigid monomer and a preparation method therefor. The polycarbonate comprises the structural unit as shown in formula (i) below; in addition, the polycarbonate can be sy...
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WO/2022/229245A1 |
The invention relates to a process, and a device system suitable therefor, for producing polycarbonates. The process contains the steps of producing at least chlorine (22) and hydrogen (29b) by the chloralkali electrolysis (14) of alkali...
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WO/2022/228357A1 |
A bioflexible elastomer intestinal anastomosis stent based on a PTMC-b-PEG-b-PTMC copolymer, and a preparation method. Biocompatible degradable polymer medical materials, i.e. PTMC and PEG, are selected, an electrostatic spinning method ...
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WO/2022/224996A1 |
Provided is a polycarbonate diol composition that includes a repeating structural unit represented by general formula (I), furthermore includes at least one repeating structural unit selected from the group consisting of repeating struct...
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WO/2022/215657A1 |
The present invention relates to a polycarbonate resin composition comprising a polycarbonate resin (A) and a perfluoroalkylsulfonimide (B) represented by formula (1), wherein the branching percentage for the polycarbonate resin (A), as ...
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WO/2022/212124A1 |
Embodiments described herein relate to phosphonium-boranes catalyst complexes comprising one or more di-/multi-anionic moieties and one or more cationic phosphonium-boranes, where the di-/multi-anionic moiety initiates the polymerization...
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WO/2022/211025A1 |
Provided is a molded body for communication equipment having a built-in microwave and/or milliwave antenna, the molded body being obtained using a thermoplastic resin composition. The thermoplastic resin composition contains a polycyanur...
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WO/2022/209775A1 |
Provided is an aliphatic polycarbonate capable of forming a film exhibiting excellent elasticity. More specifically, provided is an aliphatic polycarbonate prepared by using a cycloalkylene oxide as an alkylene oxide.
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WO/2022/211100A1 |
This resin has a repeating unit having a structure represented by general formula (FR1). (In the general formula (FR1), each R independently represents an aliphatic hydrocarbon group having 1-6 carbon atoms, an aromatic hydrocarbon group...
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WO/2022/210353A1 |
The purpose of the present invention is to provide a novel method for producing a polycarbonate. Provided is a method for producing a polycarbonate, the method comprising a step for producing a polycarbonate by a melt polycondensation ...
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WO/2022/209774A1 |
Provided is a method for, after obtaining an aliphatic polycarbonate by reacting carbon dioxide and an epoxide using an organozinc catalyst, regenerating said organozinc catalyst by a simple method. More specifically, provided is an orga...
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WO/2022/202130A1 |
A method for assembling a polycarbonate production apparatus comprising a plurality of apparatus components, the method including: polishing at least a portion of an inner-solution-contacting metal surface of each of the apparatus compon...
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WO/2022/202492A1 |
Provided is a method for producing at least one type of thermoplastic resin selected from the group consisting of a polycarbonate and a polyester carbonate, the method including a step for subjecting a dihydroxy compound and a diaryl car...
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WO/2022/202026A1 |
A branched aromatic polycarbonate that: has a prescribed repeat unit on the main chain and on a branched chain; contains at least one prescribed branched structure on the main chain and on the branched chain, the total quantity of said b...
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WO/2022/189318A1 |
The invention relates to a process for purifying cyclic carbonates, characterized by the steps (A) attaching alkylene oxide and carbon dioxide to a H-functional starter substance in the presence of a catalyst, resulting in a mixture that...
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WO/2022/190800A1 |
The problem to be solved by the present invention is to provide a thermoplastic resin which can have a balance among high refractive index, high heat resistance, and low birefringence and an optical member including the thermoplastic res...
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WO/2022/183637A1 |
Provided are chlorosulfonated poly(propylene carbonate), and a preparation method therefor and a use thereof. The chlorosulfonated poly(propylene carbonate) has a structure represented by formula I. Compared with existing poly(propylene ...
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WO/2022/186234A1 |
The present invention provides: a resin composition which contains a polycarbonate resin and has improved adhesion; and the like. The above are achieved by means of a polycarbonate resin composition which contains (A) a polycarbonate r...
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WO/2022/179904A1 |
The present invention relates to a process for preparing bisphenol A in the presence of cumene without poisoning the catalyst system comprising an ion exchange resin catalyst and a sulfur containing cocatalyst. Moreover, the present inve...
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WO/2022/179898A1 |
The present invention relates to a process for preparing bisphenol A in the presence of benzene without poisoning the catalyst system comprising an ion exchange resin catalyst and a sulfur containing cocatalyst. Moreover, the present inv...
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WO/2022/179901A1 |
The present invention relates to a process for preparing bisphenol A in the presence of at least two impurities being selected from the group consisting of 2-methylbenzofurane, hydroxyacetone, alpha-methylstyrene, acetophenone, benzene a...
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WO/2022/179900A1 |
The present invention relates to a process for preparing bisphenol A in the presence of 2- methyl benzofuran without poisoning the catalyst system comprising an ion exchange resin catalyst and a sulfur containing cocatalyst, wherein at l...
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WO/2022/179902A1 |
The present invention relates to a process for preparing bisphenol A in the presence of acetophenone without poisoning the catalyst system comprising an ion exchange resin catalyst and a sulfur containing cocatalyst. Moreover, the presen...
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WO/2022/179899A1 |
The present invention relates to a process for preparing bisphenol A in the presence of alpha¬methylstyrene without poisoning the catalyst system comprising an ion exchange resin catalyst and a sulfur containing cocatalyst. Moreover, th...
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