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WO/2020/232777A1 |
Provided by the present invention are an electrochromic polyamic acid material, a preparation method therefor, and a display device. The molecular structure of the electrochromic polyamic acid material comprises oligoaniline and carbazol...
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WO/2020/233213A1 |
A high-conductivity polybenzimidazole anion exchange film that has a comb-like structure and a preparation method therefor. First, performing a grafting reaction on polybenzimidazole and a branched chain that does not contain a cation fu...
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WO/2020/232778A1 |
Disclosed are a crosslinking type polyimide, a polyimide thin film and a preparation method therefor, and an OLED device. The crosslinking type polyimide comprises a diamine monomer having a long-chain side group. The present invention h...
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WO/2020/230663A1 |
Provided is a varnish that can efficiently prevent a polyimide-based polymer film from yellowing even when the film is manufactured after being stored for a long time in the state of a varnish. This varnish includes a γ-butyrolactone-co...
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WO/2020/230966A1 |
The present application relates to a polyimide precursor composition, a method for preparing same, and polyimide. With respect to a polyimide precursor which needs to be kept or stored for a predetermined time, the present application pr...
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WO/2020/232027A1 |
Presented herein are color stabilized diamine compositions comprising a diamine and a sulfur compound. The diamine can have an aromatic moiety. The sulfur compound includes methanethiol, ethanethiol, 1-propanethiol, 2-propanethiol, 2-pro...
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WO/2020/229903A1 |
An embodiment relates to a substance comprising an end-capped amino compound comprising an amino compound and at least a portion of an end capping agent, wherein the at least the portion of the end capping agent contains no primary alkyl...
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WO/2020/230969A1 |
The present application relates to a polyimide and a manufacturing method therefor, thereby implementing excellent adhesion while maintaining the inherent characteristics of polyimide.
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WO/2020/229227A1 |
The invention pertains to a multi-step process for making polyfunctional aromatic compounds comprising two phenyl rings bearing reactive groups susceptible of polycondensation reaction to provide polycondensed polymers, said method using...
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WO/2020/230330A1 |
A polyamide-imide resin composition that includes a polyamide-imide resin and a solvent that contains a compound that is represented by formula (1). (In the formula, R1 is a C1–8 alkyl group, R2 and R3 are each independently a hydrogen...
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WO/2020/226243A1 |
The present invention relates to a method for producing a polyimide film and a polyimide film produced thereby. In one embodiment, the method for producing a polyimide film comprises the steps of: preparing a polyamic acid by polymerizin...
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WO/2020/226132A1 |
The present invention provides: a curable resin composition which contains at least one polymer precursor selected from the group consisting of a polyimide precursor and a polybenzoxazole precursor, wherein the polymer precursor comprise...
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WO/2020/226131A1 |
Provided is a curable resin composition comprising: at least one type of polymer precursor selected from the group consisting of a polyimide precursor and a polybenzoxazole precursor; and a compound having, per molecule, two or more arom...
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WO/2020/221853A1 |
The present invention concerns the use of electrically conductive nanocomposite particles comprising a core constituted by a C1-C6 alkyl polyacrylate homopolymer or a C1-C6 alkyl acrylate copolymer and an α,β-unsaturated amide comonome...
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WO/2020/218693A1 |
The present invention relates to a polyimide film having a low dielectric dissipation factor (Df), a flexible metal foil clad laminate comprising same and a method for manufacturing the polyimide film having a low Df. The polyimide film ...
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WO/2020/218835A1 |
The present invention relates to a novel polyimide-type polymer and a preparation method therefor and, specifically, to a novel polyimide-type polymer and a preparation method therefor, wherein the novel polyimide-type polymer comprises ...
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WO/2020/218695A1 |
Disclosed are: a polyimide film for a graphite sheet, the polyimide film having a true density of approximately 1.450-1.465g/cm3, measured using helium gas; and a graphite sheet manufactured using same.
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WO/2020/219411A1 |
Disclosed is a polyamic acid having Formula. In Formula I: Ra represents one or more different tetracarboxylic acid component residues; Rb represents one or more different aromatic diamine residues or aromatic diisocyanate residues; and ...
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WO/2020/217674A1 |
Provided are: a curable resin composition which gives cured objects combining excellent heat resistance with dielectric properties; a cured object obtained from the curable resin composition; a prepreg which attains these performances; a...
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WO/2020/219852A1 |
Phenolic-terminated and phenolic pendent curable polyimides with very good dielectric properties have been prepared. These materials in combination with epoxy resins and other co-curable resins are ideal for being transformed into flexib...
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WO/2020/218134A1 |
The present invention addresses the problem of providing an industrially advantageous production method with high purity and high yield, which has an improved reaction selectivity for a tetracarboxylic acid dianhydride that has, as a mai...
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WO/2020/211110A1 |
The present invention provides a polyimide compound, having a structural general formula of PI/Fe3O4-(β-CD-Ada)x, wherein x ranges from 3 to 5. According to one aspect of the present invention, provided is a polyimide compound, wherein ...
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WO/2020/215027A1 |
Curable polyimides with very good dielectric properties have been prepared. These materials also are ideal for being transformed into flexible films that are ready to be laminated for example between copper foils for applications such as...
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WO/2020/215025A1 |
The present invention provides curable polyimides with low color that are resistant to long term thermo-oxidative degradation. These materials, which include polyimides that are fully aromatic, are synthesized in anisole and are contempl...
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WO/2020/212591A1 |
In a first aspect, the present invention discloses a polymeric compound, suitable for use in a fire extinguishing composition, comprising a polyethylene imine base with a first moiety selected from the group of linear or branched C2-C15-...
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WO/2020/212149A1 |
The present invention is directed to the use as a reactive component in the curing of compositions based on epoxy resins of a functionalized α-angelica lactone (XOMAL) having the general formula (I), wherein: Ra is a C1-C30alkyl, C3–C...
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WO/2020/213515A1 |
The present invention provides a laminate (metal clad laminate) which comprises a dielectric layer that has a low water absorption rate and excellent dielectric characteristics, heat resistance, and adhesion, and a metal foil layer, and ...
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WO/2020/206754A1 |
A solvent-free preparation method for an oxidative coupling high-temperature antioxidant, the specific preparation steps being as follows: adding N-phenyl-α-methylnaphthylamine or alkylated N-phenyl-α-methylnaphthylamine and an alkylat...
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WO/2020/206968A1 |
Disclosed are a high heat resistance, transparent and soluble biphenyl-type polyimide thin film, a preparation method therefor and the use thereof. The preparation method comprises mixing a triarylmethane diamine monomer with a dangling ...
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WO/2020/209625A1 |
A polyamide-imide block copolymer according to the present invention allows a polyamide-imide film having excellent thermal stability and chemical resistance, while having excellent mechanical properties, to be provided.
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WO/2020/207309A1 |
Disclosed is a polytriarylamine, when the polytriarylamine is used as a semiconductor binder for an organic thin film transistor, the semiconductor binder polymer is high-κ binder polymer, and when the polytriarylamine is used in combin...
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WO/2020/209555A1 |
The present invention provides a multilayer polyimide film and a method for producing same, the multilayer polyimide film comprising: a core portion containing at least a 4,4'-diamino-2,2'-dimethylbiphenyl compound-derived structure; and...
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WO/2020/208884A1 |
A polymer [P] having a substructure represented by formula (1) is included in this film-forming composition. In formula (1), Y1 is a divalent group having a photoalignment moiety, and Y2 is a divalent organic group having at least 1 carb...
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WO/2020/209524A1 |
The present invention provides a multi-layer polyimide film and a manufacturing method therefor, the multi-layer polyimide film comprising: a core portion comprising at least 4,4'-diamino-2,2'-dimethylbiphenyl compound-derived structure;...
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WO/2020/202213A1 |
The present invention relates to a crystalline, two dimensional polymer of Formula I and a process for the preparation thereof. (I)
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WO/2020/204513A1 |
Proposed is an improved substrate for a heat-resistant electronic device, which can replace a transparent glass substrate, and which has transparency, heat resistance, mechanical strength, and excellent optical properties and quality. Th...
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WO/2020/203193A1 |
An insulated electrical wire which comprises a conductor and an insulating coating film disposed in contact with the conductor, wherein the insulating coating film disposed in contact with the conductor includes a polyimide resin contain...
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WO/2020/203834A1 |
Provided is a bismaleimide compound (I) that has a cyclic imide bond and is obtained by the reaction of a diamine (A) derived from a dimer acid, a tetracarboxylic dianhydride (C) having an alicyclic structure, and maleic anhydride.
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WO/2020/204175A1 |
This invention pertains to a resin composition containing: a phosphate ester flame retardant (A) having an aromatic hydrocarbon group containing two or more aromatic ring structures; and a polyphenylene ether derivative (B) having an eth...
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WO/2020/203110A1 |
The purpose of the present invention is to provide: a highly reliable liquid crystal alignment film which is suppressed in the occurrence of an afterimage, and is capable of minimizing bright defect even if a physical friction such as ru...
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WO/2020/203264A1 |
Provided are: a polyimide resin capable of forming films excellent in terms of colorless transparency, optical isotropy, chemical resistance (e.g., acid resistance and alkali resistance), and toughness; and a polyimide varnish and a poly...
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WO/2020/200229A1 |
Provided are a polyimide thin film and preparation method and application thereof. The polyimide film is a low thermal expansion, colorless transparent thin film, obtained using a mixture of rigid aromatic diamine and fluorine-containing...
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WO/2020/196721A1 |
This poly(amic acid) composition is obtained by dissolving or dispersing, in a solvent, a poly(amic acid) containing repeating units represented by general formula (A) [in general formula (A), RA and RB are each independently a hydrogen ...
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WO/2020/195993A1 |
The present invention provides: a curable resin composition having at least one polymer precursor selected from the group comprising a polyimide precursor and a polybenzoxazole precursor, and a hydrogen bonding nitrogen atom, and includi...
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WO/2020/198247A1 |
The present invention provides a process of using an alloy nanoparticle catalyst to catalyze one pot chemical reactions for synthesizing functional polymers with controlled polymerization and properties. In particular, the present invent...
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WO/2020/195819A1 |
The present invention addresses the problem of providing: a method for manufacturing an optical film having excellent transparency and demonstrating excellent detachability during film formation; and an optical film. This method for manu...
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WO/2020/196805A1 |
The present invention discloses a polyimide-based binder for electricity storage devices, which has a repeated breaking energy retention ratio of 70% or more. By using this binder, the characteristics of an electricity storage device, wh...
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WO/2020/196764A1 |
This polyimide resin has a structure represented by general formula (1) and/or a structure represented by a general formula (2). Z in general formula (2) is hydrogen or a monovalent organic group, and X in general formulas (1) and (2) in...
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WO/2020/193293A1 |
The invention is directed to monomer(s) based on a 3,4-dihydro-2H-1,3-benzoxazine derivative. The invention also concerns a composition comprising a mixture of said monomer(s) and of a second benzoxazine derivative selected from the grou...
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WO/2020/195804A1 |
[Problem] To provide: a photosensitive resin composition which can be photocured without leaving any photocuring failure in the cured photosensitive resin composition (has excellent photocurability (in inner portions)) and which, when us...
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