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WO/2020/229393A1 |
A process for the synthesis of compounds comprising at least one non-cyclic carbonate group is provided, wherein a compound A) comprising at least one five-membered cyclic monothiocarbonate group is reacted with at least one hydroxy grou...
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WO/2020/226774A1 |
An article includes at least two contiguous layers containing a composition that includes a branched polycarbonate, optionally a linear carbonate-containing polymer, and 0 to less than 5 weight percent filler. The composition is characte...
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WO/2020/226126A1 |
A compound having a fluorene skeleton represented by formula (1), which is characterized in that a resin obtained by using this compound having a fluorene skeleton as a starting material is excellent in terms of various characteristics (...
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WO/2020/222018A1 |
The present invention relates to a polyol block copolymer comprising a polycarbonate block, A (-A'-Z'-Z-(Z'-A')n-), and polyethercarbonate blocks, B. The polyol block copolymer has the polyblock structure: B-A'-Z'-Z-(Z'-A'-B)n wherein n=...
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WO/2020/222019A1 |
A process for producing a polyol block copolymer in a multiple reactor system is described comprising a first and second reactor wherein a first reaction takes place in the first reactor and a second reaction takes place in the second re...
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WO/2020/215424A1 |
The present invention relates to polycarbonate, a preparation method therefor and an application thereof. The method comprises preparing a ureidopyrimidinone type diisocyanate from a first compound and a second compound; and reacting a t...
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WO/2020/212229A1 |
The present invention relates to a method for producing a thermoplastic moulding compound containing A) at least one aromatic polycarbonate and B) an additional polymer that is chemically different from polymer A and that contains at lea...
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WO/2020/213389A1 |
Provided is a thermoplastic resin which includes a constituent unit represented by general formula (I). [In formula (I), R1 represents a hydrocarbon group having 1-6 carbon atoms and R2 and R3 each independently represent a hydrogen atom...
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WO/2020/209211A1 |
Provided is a film containing a polycarbonate resin which has excellent draw-down resistance during thermoforming and which which can achieve excellent moldability in processing in curved parts and the like. The film contains a polycarbo...
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WO/2020/203881A1 |
A polymeric binder comprising an aliphatic copolycarbonate which has structural units represented by formulae (1) and (2). In formulae (1) and (2), R1 and R2 independently are different alkylene groups each having 2-20 carbon atoms, and ...
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WO/2020/201180A1 |
The present invention relates to a process for producing polycarbonate according to a phase boundary process, from at least one dihydroxydiaryl alkane, phosgene, at least one catalyst and at least one chain terminator, the process allowi...
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WO/2020/203882A1 |
A polymeric binder comprising an ion-conductive polymer which comprises a polymer and metal ions. The polymer is preferably selected from the group consisting of polyesters, polyethers, anionic polymers, polycarbonates, and silicones. Th...
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WO/2020/201179A1 |
The present invention relates to a process for producing polycarbonate according to a phase boundary process, from at least one dihydroxydiaryl alkane, phosgene, at least one catalyst and at least one chain terminator, the process produc...
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WO/2020/203958A1 |
The present invention provides a terminally modified polycarbonate resin that has ultraviolet absorbing capability. More specifically, the present invention provides a terminally modified polycarbonate resin which has a structure represe...
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WO/2020/196146A1 |
The present invention provides a polarizing plate with a retardation layer, which is suppressed in whitening and cracks, while having excellent dimensional stability. A polarizing plate with a retardation layer according to the present i...
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WO/2020/192381A1 |
The invention relates to a copolymer polycarbonate having self-repairing function and a preparation method therefor. The method comprises the following steps: first, mixing reducing sugar, an oxetane derivative and a first catalyst and h...
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WO/2020/196343A1 |
The present invention addresses the problem of providing a method for efficiently producing a polycarbonate copolymer which has siloxane constituent units and exhibits excellent impact resistance and high fluidity when molten; a method f...
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WO/2020/196482A1 |
A retardation film is provided in which whitening and cracking are suppressed and which has excellent folding endurance. This retardation film contains a prescribed polycarbonate resin, Re(450)/Re(550) is 0.98-1.03, and Re(550) is 80-190nm.
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WO/2020/189201A1 |
This method for producing bisphenol includes: a step for mixing an organic phase 1 that contains bisphenol, the organic phase 1 being in a mixed solution 1 of an aqueous phase 1 and the organic phase 1, with a chelating agent to obtain a...
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WO/2020/189598A1 |
The present invention addresses the problem of providing a (meth)acrylate-terminated polycarbonate oligomer which has satisfactory compatibility with polyfunctional (meth)acrylic monomers and satisfactory solubility in solvents and which...
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WO/2020/184182A1 |
Provided is a bisphenol composition that has a bisphenol content of at least 95 mass% and contains at least 200 ppm by mass of a compound represented by general formula (II). Also provided is polycarbonate resin production method using t...
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WO/2020/184183A1 |
Provided is a bisphenol composition that has a bisphenol content of at least 95 mass%, contains at least 150 ppm by mass of a bisphenol represented by general formula (II), and has a methanol solution color (Hazen Color Index) of not gre...
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WO/2020/182834A1 |
The invention relates to an integrated process for conditioning process water (1) from the production (I) of polycarbonate, which process water contains at least catalyst residues and/or organic impurities and sodium chloride, and subseq...
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WO/2020/182277A1 |
The present invention relates to expandable, polymerizable compositions comprising at least one benzoxazine and at least one cyclic carbonate, to polymerization products of these expandable, polymerizable compositions, to a process for p...
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WO/2020/179462A1 |
The purpose of the present invention is to provide a polycarbonate diol suitable as a paint material or as a raw material of polyurethane. In the case of use as a constituent material of paint, the purpose of the present invention is to ...
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WO/2020/179483A1 |
The purpose of the present invention is to provide a novel polycarbonate diol which, when used as the raw material compound of polyurethane, can impart excellent contamination resistance, low-temperature flexibility, and heat resistance,...
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WO/2020/175577A1 |
The present invention provides an optical lens from which a compact imaging module can be provided. The optical lens according to the present invention includes a thermoplastic resin having a refractive index (nD) and an Abbe number (ν)...
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WO/2020/175532A1 |
The present invention provides a stretched film exhibiting excellent reverse wavelength dispersibility, a circularly polarizing plate, and a display device. A stretched film according to the present invention has a slow axis along the in...
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WO/2020/175572A1 |
The purpose of the present invention is to provide: an optical member which can cut off ultraviolet rays without using a means of containing an ultraviolet absorbing agent in a resin, using an ultraviolet cut-off filter, using ultraviole...
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WO/2020/173110A1 |
The present invention belongs to the technical field of high polymer material preparation, and relates to a method for preparing polycarbonate. The present invention comprises: step 1: adding diphenyl carbonate and bisphenol A into a rea...
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WO/2020/173285A1 |
Disclosed are actuators containing an active layer comprising at least one metal hydroxide, the active layer having a first volume under no stimulation and a second volume either greater than or smaller than the first volume under stimul...
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WO/2020/166408A1 |
A polycarbonate resin composition or copolymer in which the main repeating unit includes a carbonate unit (a-1) having a fluorene ring in a side chain, a carbonate unit (a-2) represented by formula (a-2) (in the formula, W represents a C...
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WO/2020/162533A1 |
A polycarbonate resin composition is provided which contains a constituent unit represented by formula (1), a constituent unit represented by formula (2), and a constituent unit represented by general formula (3). (In general formula (3)...
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WO/2020/158590A1 |
Provided are: a carbonate-olefin based copolymer comprising a polycarbonate block, an olefin based polymer block, and a specific constitutive unit; and a resin composition containing the copolymer.
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WO/2020/159282A1 |
The present invention relates to a specifically structured polycarbonate-nanocellulose composite material comprising polycarbonate and nanocellulose, and to a method for manufacturing same. The polycarbonate-nanocellulose composite mater...
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WO/2020/159669A1 |
Alkylene carbonates are removed from polyether-carbonate polymers by contacting the polyether-carbonate with an absorbent at a temperature of 30 to 150°C. The process is effective and inexpensive. The purified polyether-carbonate is use...
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WO/2020/049319A9 |
Methods for preparing polycarbonate ether polyols and high molecular weight polyether carbonates and methods having improved control through controlled addition of materials during polymerisation are described. The method comprises the s...
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WO/2020/068796A9 |
The present disclosure relates to block copolymers comprising, and methods of making thereof, a polycarbonate chain linked to a hydrophilic polymer. Such block copolymers may have the formula B-A-B, where A is a polycarbonate or polyethe...
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WO/2020/153329A1 |
The purpose of the present invention is to provide a technique for introducing a functional group to an aliphatic polycarbonate without a degradation in the excellent thermal decomposition property of the aliphatic polycarbonate. This al...
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WO/2020/148161A1 |
The invention provides a process for producing diol, characterized in that the process comprises the steps of (1-i) addition of alkylene oxide and carbon dioxide to an H-functional starter substance in the presence of a catalyst to obtai...
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WO/2020/145352A1 |
Provided are a polycarbonate polyol that is liquid at normal temperature, has a reduced number of colors and turbidity, and has an average number of hydroxyl functional groups of more than 2, and a method for producing the same. A poly...
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WO/2020/138781A1 |
A thermoplastic resin composition of the present invention is characterized by comprising: a polycarbonate resin; a polycarbonate-polysiloxane copolymer resin wherein the average degree of polymerization of polysiloxane blocks is 80 to 1...
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WO/2020/135032A1 |
A Lewis acid-base pair catalytic initiator and an application thereof, the Lewis acid-base pair catalytic initiator comprising a Lewis acid and a Lewis base; the structural formula of the Lewis acid is represented by the following formul...
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WO/2020/138050A1 |
A thermoplastic resin composition that cuts visible light and has infrared light transmittance. A thermoplastic resin composition including a thermoplastic resin and a coloring material, wherein the refractive index at a wavelength of 89...
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WO/2020/130686A1 |
The present invention relates to a method for separating an organic zinc catalyst dispersed in a solution by filtering a polyalkylene carbonate resin solution. When the method for separating an organic zinc catalyst according to the pres...
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WO/2020/130728A1 |
The present invention relates to a method for preparing an organic zinc catalyst through solid phase mixing that does not require a solvent and a washing process, and a method for preparing a polyalkylene carbonate resin using the organi...
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WO/2020/131706A1 |
A silicone-polycarbonate copolymer has the formula Xg[ZjYo]c, where each X is an independently selected silicone moiety having a particular structure, each Y is an independently selected polycarbonate moiety, each Z is an independently s...
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WO/2020/131708A2 |
A silicone-organic copolymer has the formula Xg[ZjYo]c, where each X is an independently selected silicone moiety having a particular structure, each Y is an independently selected polyacrylate moiety, each Z is an independently selected...
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WO/2020/127890A1 |
The present invention relates to a method for producing a mixture comprising at least one compound having at least two hydroxy and/or amino groups made of a biomass material. The invention also relates to such a mixture and to the use th...
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WO/2020/121262A2 |
Embodiments of the present disclosure describe polymerization systems for the synthesis of polycarbonate polyols, methods of synthesizing polycarbonate polyols using the polymerization systems, methods of recovering initiators and/or act...
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