Abstract: There is provided a method and an apparatus for efficiently recovering an amide-based compound such as N-methyl-2-pyrrolidone from an aqueous solution containing an amide-based compound such as N-methyl-2-pyrrolidone.
Abstract: Described herein are anionic phenylene oligomers and polymers, and devices including these materials. The oligomers and polymers can be prepared in a convenient and well-controlled manner, and can be used in cation exchange membranes. Also described is the controlled synthesis of anionic phenylene monomers and their use in synthesizing anionic oligomers and polymers, with precise control of the position and number of anionic groups.
Type:
Grant
Filed:
January 17, 2023
Date of Patent:
April 30, 2024
Inventors:
Steven Holdcroft, Thomas J. G. Skalski, Michael Adamski, Benjamin Britton, Timothy J. Peckham
Abstract: The invention relates to a method for producing an extract of seeds of the Entada genus by selective hydrolysis of the metabolites accumulated in the seeds. The invention also relates to the extract produced using such a method, to a composition comprising such an extract, and to the cosmetic and dermocosmetic applications of such an extract.
Abstract: A high-molecular-weight compound having at least one substituted triarylamine structural unit represented by the following general formula (1), further including a structural unit having at least one aromatic hydrocarbon ring or a structural unit having a triarylamine skeleton in addition to the at least one substituted triarylamine structural unit, and having a weight average molecular weight of 10,000 or more and 1,000,000 or less in terms of polystyrene and no a crosslinker, wherein the high-molecular-weight compound is used in an organic EL device as a constituent material of at least one organic layer. A polymer material having excellent hole injection/transport performance, electron blocking capability, high heat resistance, and high stability in a thin-film state for use in a polymer organic EL device, and an organic EL device having a low drive voltage, high light emission efficiency, and a long lifetime using this polymer material.
Type:
Grant
Filed:
May 29, 2020
Date of Patent:
April 23, 2024
Assignee:
HODOGAYA CHEMICAL CO., LTD.
Inventors:
Kazunori Togashi, Mika Shinoda, Hideyoshi Kitahara, Shunji Mochizuki, Hiroki Hirai, Yuta Saegusa
Abstract: A compound for an encapsulation film and a composition thereof, a film, an organic light-emitting device, and an encapsulation method are provided. The composition comprises the compound, one or more photocurable and thermocurable propenyl compounds, and one or more compounds that produce a free radical and produce an acid under light or heat. The encapsulation film includes the composition as a film of an organic layer. The organic light-emitting device includes the film. The encapsulation method involves encapsulating the organic light-emitting device using the encapsulation film. The composition containing the compound serves as an organic layer. An encapsulation film for the organic light-emitting device is manufactured by repetitively and alternately laminating an inorganic layer and the organic layer.
Type:
Grant
Filed:
March 26, 2020
Date of Patent:
April 9, 2024
Assignee:
Jilin OLED Optical and Electronic Materials Co., Ltd.
Abstract: A copolymer including a structural unit represented by Chemical Formula 1 wherein the copolymer is capable of improving luminous efficiency and durability, particularly, an improvement in luminescence life-span, of an electroluminescence device, particularly a quantum dot electroluminescence device.
Type:
Grant
Filed:
December 7, 2021
Date of Patent:
March 26, 2024
Assignee:
SAMSUNG ELECTRONICS CO., LTD.
Inventors:
Masashi Tsuji, Fumiaki Kato, Naotoshi Suganuma, Takahiro Fujiyama, Yusaku Konishi, Dae Young Chung, Ha Il Kwon, Soonmin Cha, Tae Ho Kim
Abstract: A polybenzimidazole production method for producing the polybenzimidazole including a repeating unit represented by the following formula (1): wherein Rf is —SO2—, —O—, —CO—, an alkylene group optionally containing a substituent, or a group represented by the following formula (a): two Xs are each individually a hydrogen atom or a monovalent organic group; and R1 is a divalent organic group, the production method including a step (1-1) of polymerizing a tetramine compound and a dicarboxylic acid derivative compound to provide a polybenzimidazole precursor polyamide, and a step (1-2) of dehydrocyclizing the polybenzimidazole precursor polyamide.
Type:
Grant
Filed:
December 8, 2022
Date of Patent:
March 19, 2024
Assignees:
DAIKIN INDUSTRIES, LTD., NATIONAL UNIVERSITY CORPORATION, IWATE UNIVERSITY
Abstract: A polymer blend including 5 to 95 weight percent of a poly(ester-carbonate-carbonate) comprising 40 to 95 mole percent of ester units comprising low heat bisphenol groups and high heat bisphenol groups, wherein the ester units comprise 20 to 80 mole percent of the low heat bisphenol groups and 20 to 80 mole percent of the high heat bisphenol groups, based on the total moles of ester units in the poly(ester-carbonate-carbonate), and 5 to 60 mole percent of carbonate units comprising the low heat bisphenol groups and the high heat bisphenol groups, wherein the carbonate units comprise 20 to 80 mole percent of the low heat bisphenol groups and 20 to 80 mole percent of the high heat bisphenol groups, based on the total moles of carbonate units in the poly(ester-carbonate-carbonate); and 5 to 95 weight percent of a poly(etherimide), wherein the weight percent of each polymer is based on the total weight of the polymers in the blend, and a molded 0.
Type:
Grant
Filed:
February 21, 2019
Date of Patent:
March 12, 2024
Assignee:
SHPP GLOBAL TECHNOLOGIES B.V.
Inventors:
Paul Dean Sybert, Norimitsu Yamaguchi, Jacob Lee Oberholtzer, James Alan Mahood
Abstract: The present disclosure provides for the development and applications of monomeric, oligomeric and/or polymeric semiconductor materials comprising a five-membered heteroaromatic unit (e.g., thiophene; furan; selenophene; etc.) that includes an acrylyl or an acrylyl-like (—C?C—CO—) side chain. The semiconductor materials can be used as organic semiconductors for use in electronic, optical, or optoelectronic devices such as organic thin film transistors and organic photovoltaics. The disclosed semiconductor materials (e.g., semiconducting polymer compounds) can be used as high performance semiconductors (e.g., for organic solar cells or organic photovoltaics (OPVs)), and the disclosed semiconductor materials can be used for other devices (e.g., organic thin film transistors (OTFTs) and sensors, etc.).
Abstract: A hard mask-forming composition which forms a hard mask used in lithography, including: a resin containing an aromatic ring and a polar group; and a compound containing at least one of an oxazine ring fused to an aromatic ring, and a fluorene ring.
Abstract: A zwitterionic polysulfone formed from an allyl-containing monomer, a phenol-containing monomer, and an aryl-halide-containing monomer. The zwitterionic polysulfone may be incorporated into a desalination membrane.
Type:
Grant
Filed:
November 11, 2022
Date of Patent:
March 5, 2024
Assignee:
Arizona Board of Regents on behalf of Arizona State University
Abstract: A polymer and a light-emitting device employing the same are provided. The polymer includes a first repeat unit with a structure represented by Formula (I): wherein the definitions of R1, R2, A1, A2, A3, and Z1 and n are as defined in the specification. At least one of A1, A2, and A3 is not hydrogen.
Type:
Grant
Filed:
April 28, 2021
Date of Patent:
February 27, 2024
Assignee:
INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
Abstract: An arylamine-fluorene alternating copolymer having a structural unit (A) is represented by Chemical Formula (1): wherein Chemical Formula (1) is the same as described in the detailed description.
Type:
Grant
Filed:
March 5, 2021
Date of Patent:
February 27, 2024
Assignee:
SAMSUNG ELECTRONICS CO., LTD.
Inventors:
Masashi Tsuji, Takahiro Fujiyama, Yusaku Konishi, Dae Young Chung, Fumiaki Kato, Jaejun Chang, Keigo Furuta, Takao Motoyama, Eun Joo Jang, Hyo Sook Jang, Tae Ho Kim, Tomoyuki Kikuchi, Yuho Won
Abstract: [Problem to be Solved] An object is to provide a compound with good heat resistance. And another object is to provide a coating made exhibits less film shrinkage, good gap filling property and good planarization. [Solution] The present invention provides an ethynyl derived composite and a composition comprising thereof. And the present invention provides a method for manufacturing a coating by it, and a method for manufacturing a device.
Abstract: A copolymer having a structural unit represented by Chemical Formula 1 is provided. The copolymer may improve performance, e.g., luminous efficiency, of an electroluminescence device. In Chemical Formula 1, the definition of each substituent is as described in the detailed description.
Type:
Grant
Filed:
September 9, 2021
Date of Patent:
February 20, 2024
Assignee:
SAMSUNG ELECTRONICS CO., LTD.
Inventors:
Fumiaki Kato, Masashi Tsuji, Takao Motoyama, Yusaku Konishi, Keigo Furuta, Takahiro Fujiyama, Tae Ho Kim, Won Sik Yoon, Ha Il Kwon, Dae Young Chung, Eun Joo Jang
Abstract: The present invention relates to a one-step process for preparation of “in-situ” or “ex-situ” self-organized and electrically conducting polymer nanocomposites using thermally initiated polymerization of a halogenated 3,4-ethylenedioxythiophene monomer or its derivatives. This approach does not require additional polymerization initiators or catalysts, produce gaseous products that are naturally removed without affecting the polymer matrix, and do not leave by-product contaminants. It is demonstrated that self-polymerization of halogenated 3,4-ethylenedioxythiophene monomer is not affected by the presence of a solid-state phase in the form of nanoparticles and results in formation of 3,4-polyethylenedioxythiophene (PEDOT) nanocomposites.
Type:
Grant
Filed:
August 5, 2021
Date of Patent:
February 20, 2024
Assignee:
SOUTH DAKOTA BOARD OF REGENTS
Inventors:
Alevtina Smirnova, Michael McGraw, Praveen Kolla
Abstract: An organic polymer having an asymmetric structure, a preparation method thereof and a use as a photoelectric material thereof, where the organic polymer with an asymmetric structure is obtained by polymerization after performing Stille coupling reaction between an electron-donating unit D and an electron-withdrawing unit A in the presence of a solvent and a catalyst. The compound of the present application has good heat stability, controllable absorption level, and is suitable for the preparation of hole transport materials of high-performance perovskite solar cells with high efficiency, flexibility, good stability and a large area as well as donor materials of organic solar cells.
Abstract: This invention describes resins with phosphate cores and a simple, three-step process for their synthesis. Preferred resins are cyanate ester resins with bridging phosphate groups. These resins can be cured to produce thermoset polymers having Tgs of between 131 and >360° C. depending on the number of cyanate ester groups per phosphate and the substitution pattern of the aromatic rings. The high char yields of these resins, up to about 67%, coupled with the phosphate core means that these materials will have applications as fire-resistant polymers. Additionally, these materials can potentially be blended with conventional cyanate esters or other compatible thermosetting resins to improve the fire resistance of composite materials. Other applications may include use in fire-resistant circuit boards, or as surface coatings to reduce flammability of conventional composite materials or thermoplastics.
Type:
Grant
Filed:
October 7, 2020
Date of Patent:
February 13, 2024
Assignee:
The United States of America, as represented by the Secretary of the Navy
Inventors:
Benjamin G. Harvey, Andrew P. Chafin, Michael D. Garrison
Abstract: The present invention relates to a method for the synthesis of certain perfluoropolyether polymers having well-defined recurring units structure, and whereas the fraction of reactive end groups can be easily tuned.
Type:
Grant
Filed:
April 18, 2019
Date of Patent:
February 13, 2024
Assignee:
SOLVAY SPECIALTY POLYMERS ITALY S.P.A
Inventors:
Cristiano Monzani, Marco Galimberti, Vito Tortelli
Abstract: An organic photovoltaic device comprises a first electrode, a first carrier transporting layer, an active layer, a second carrier transporting layer, and a second electrode. The first electrode is a transparent electrode. The active layer includes a conjugated polymer material, which includes a structure of formula I: wherein R0, R0?, R0?, R0??, Y1 and Y2 can be the same or different from each other, and independently selected from one of the following groups and their derivatives: C1-C30 alkyl, C3-C30 branched alkyl, C1-C30 silyl, C2-C30 ester, C1-C30 alkoxy, C1-C30 alkylthio, C1-C30 haloalkyl, C2-C30 olefin, C2-C30 alkyne, C2-C30 carbon chain containing cyano, C1-C30 carbon chain containing nitro, C1-C30 carbon chain containing hydroxyl, C3-C30 carbon chain containing keto, halogen, cyano, and hydrogen. The organic photovoltaic device of the present invention has good power conversion efficiency.