Patents Examined by Shane Fang
  • Patent number: 10927214
    Abstract: The method of making a pyrrolo bisthiazole homopolymer starts with dissolving a dibrominated pyrrolo[3,2-d:4,5-d?]bisthiazole monomer having the formula: where R is an alkyl group, in anhydrous tetrahydrofuran (THF). Then, the solvated monomer is treated with 1 equivalent of a Turbo-Grignard reagent complex having the formula iPrMgCl.LiCl at 0° C. to form a reaction mixture. The reaction mixture is stirred for 1 hour at room temperature, and after stirring, the reaction mixture is refluxed for 24 hours. A conjugated homopolymer product having the formula: where n is the number of repeating units of pyrrolo[3,2-d:4,5-d?]bisthiazole, is recovered from the reaction mixture. The PBTz-based homopolymers showed broad absorption from 450 to 850 nm in thin film and excellent photochemical and thermal stability, making the polymers suitable for lightweight, low cost plastic electronic devices.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: February 23, 2021
    Assignee: QATAR FOUNDATION FOR EDUCATION, SCIENCE AND COMMUNITY DEVELOPMENT
    Inventors: Mohammed Al-Hashimi, Hugo Bronstein
  • Patent number: 10927216
    Abstract: Provided is a high molecular weight aromatic polycarbonate resin manufacturing method that suppresses the occurrence of heterogeneous structures and can achieve a sufficiently high molecular weight. A high molecular weight aromatic polycarbonate resin manufacturing method including: a step in which a dialcohol compound expressed by general formula (1) and a catalyst are mixed to obtain a catalyst composition; a step in which the obtained catalyst composition is transferred to a prepolymer mixing tank via a transfer pipe, with a transfer period of 10 hours or less; a step in which the transferred catalyst composition and an aromatic polycarbonate prepolymer are mixed in the prepolymer mixing tank to obtain a prepolymer mixture; and a high molecular weight achievement step in which the obtained prepolymer mixture is heat-treated under reduced pressure conditions to obtain a high molecular weight aromatic polycarbonate resin.
    Type: Grant
    Filed: March 24, 2017
    Date of Patent: February 23, 2021
    Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Yoshinori Isahaya, Atsushi Hirashima, Hidefumi Harada, Maki Ito, Jun-ya Hayakawa, Takehiko Isobe, Yousuke Shinkai, Keisuke Shimokawa
  • Patent number: 10919917
    Abstract: The present disclosure describes methods for silylating heteroaromatic derivatives, comprising the use of hydrosilanes and potassium hydroxide.
    Type: Grant
    Filed: December 6, 2019
    Date of Patent: February 16, 2021
    Assignee: California Institute of Technology
    Inventors: Anton Toutov, Kerry Betz, Alexey Fedorov, Brian M. Stoltz, Wenbo Liu, Robert H. Grubbs
  • Patent number: 10920024
    Abstract: The present disclosure relates to a polysulfide copolymer particle and a method of preparing the polysulfide copolymer particle.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: February 16, 2021
    Assignee: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Kookheon Char, Jeewoo Lim, Unho Jung, Won Tae Joe
  • Patent number: 10913821
    Abstract: The present invention relates to a high molecular weight polymer having an aldaric acid as a constitutional unit, and a method for producing the same, and more specifically, relates to a thermoplastic polymer which comprises at least one repeating unit derived from an aldaric acid, and has a weight average molecular weight of 3,800 or more.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: February 9, 2021
    Assignees: ENSUIKO SUGAR REFINING CO., LTD., THE UNIVERSITY OF TOKYO
    Inventors: Tadahisa Iwata, Yukiko Rogers, Yuxin Wu, Hisaharu Masaki, Tetsuya Ito, Koji Hara
  • Patent number: 10907068
    Abstract: The present invention relates to a cell membrane-mimicking brush polymer having surface properties mimicking a cell membrane and a self-assembly capability by means of a cell membrane mimicking functional group introduced to a brush terminal, and a method for preparing same.
    Type: Grant
    Filed: November 7, 2017
    Date of Patent: February 2, 2021
    Assignees: CEKO CO., LTD., POSTECH ACADEMY-INDUSTRY FOUNDATION
    Inventors: Moon-Hor Ree, Kyung-Ho Kwon, Jong-Chan Lee, Chang-Sub Kim, Hyun-Joong Kim, Hong-Chul Kim, Jeong-Rae Kim
  • Patent number: 10899924
    Abstract: An aqueous binder composition is provided for use in the formation of fiber insulation and non-woven mats that comprises a reaction product of one or more Liquid Polyol Monomers; itaconic acid, its salts or anhydride; and a C4 to C6 polyol selected from the group consisting of pentaerythritol, trimethylol propane, neopentyl glycol, and mixtures thereof. The molar ratio of the combined alcohols (Liquid Polyol Monomers and C4 to C6 polyols) to itaconic acid is at least 2:1, wherein the molar ratio of Liquid Polyol Monomers to C4 to C6 polyols is from about 1:1 to about 30:1.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: January 26, 2021
    Assignee: CARGILL, INCORPORATED
    Inventors: Kevin R. Anderson, Ryan L. Flynn, Frank P. Lochel
  • Patent number: 10894860
    Abstract: A high molecular weight aromatic polycarbonate resin manufacturing method that can achieve good quality and sufficiently high molecular weight includes: a step in which a dialcohol compound expressed by general formula (1) and a catalyst are mixed to obtain a catalyst composition; a step in which the obtained catalyst composition is transferred to a prepolymer mixing tank via a transfer pipe; a step in which the transferred catalyst composition and an aromatic polycarbonate prepolymer are mixed in the prepolymer mixing tank, under a pressure that is greater than or equal to the vapor pressure of the dialcohol compound at the temperature of the prepolymer mixing tank and is less than or equal to 5 MPa, to obtain a prepolymer mixture; and a high molecular weight achievement step in which the obtained prepolymer mixture is heat-treated under reduced pressure conditions to obtain a high molecular weight aromatic polycarbonate resin.
    Type: Grant
    Filed: March 24, 2017
    Date of Patent: January 19, 2021
    Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Yoshinori Isahaya, Atsushi Hirashima, Hidefumi Harada, Maki Ito, Jun-ya Hayakawa, Takehiko Isobe, Yousuke Shinkai, Keisuke Shimokawa
  • Patent number: 10894864
    Abstract: A polysulfone has sulfone units that are separated by alkylene units in a polymer chain or a copolymer chain where the alkylene units have at least four carbons between sulfone units. The alkylene units can include an ethenylene unit separated from the sulfone units by at least one methylene units. The polysulfones can be crosslinked for enhanced thermal stability. Membranes can be formed from the polysulfones.
    Type: Grant
    Filed: May 26, 2017
    Date of Patent: January 19, 2021
    Assignee: University of Florida Research Foundation, Inc.
    Inventors: Kenneth B. Wagener, Taylor W. Gaines, Michael Bell
  • Patent number: 10889686
    Abstract: A curable system containing a benzoxazine and a benzothiazole sulfenamide. The curable system may be catalyzed at temperatures generally used to cure multifunctional epoxy resins yet exhibits improved pot-life and processing times and provides a cured article that exhibits acceptable thermo mechanical properties.
    Type: Grant
    Filed: May 9, 2017
    Date of Patent: January 12, 2021
    Assignee: HUNTSMAN ADVANCED MATERIALS AMERICAS LLC
    Inventors: Derek Scott Kincaid, Dong Le, David L. Johnson
  • Patent number: 10889685
    Abstract: Cyclic imino ether polymers, such as polyoxazolines or polyoxazines, having a low polydispersity index can be obtained in a tubular flow reactor by applying a sufficiently high linear flow velocity of the reaction mixture in the tubular flow reactor, such as a flow velocity of least 100 cm/min or at least 120 cm/min. Also, methods to control the polydispersity of a cyclic imino ether polymer during polymerization are provided.
    Type: Grant
    Filed: April 21, 2017
    Date of Patent: January 12, 2021
    Assignees: Universiteit Gent, Universiteit Hasselt
    Inventors: Victor Retamero De La Rosa, Evelien Baeten, Richard Hoogenboom, Tanja Junkers
  • Patent number: 10870755
    Abstract: The present invention relates to a method for producing thermoplastic aromatic polysulfone resin, in which a polymerization reaction is performed in an organic solvent by using compound (A), a dihalogeno compound represented by Formula (I), compound (B), a divalent phenol represented by Formula (II), and compound (C), an alkali metal carbonate, at a charging molar ratio satisfying the following Formulae (1) to (3): (1) 0.900<(A)/(B)<0.990; (2) {(A)/(B)}?0.02<(C)/(B)<{(A)/(B)}+0.01; and (3) (C)/(B)<1.00, In Formulae (I) and (II), R1 to R4 represent an alkyl group having 1 to 4 carbon atoms or an alkoxy group having 1 to 4 carbon atoms, X and X? represent a halogen atom, Y represents one or more groups selected from the group consisting of —SO2—, —C(CH3)2—, —CH2—, —O— and —CO—, or a single bond, and n1, n2, n3 and n4 represent an integer of 0 to 4.
    Type: Grant
    Filed: September 14, 2016
    Date of Patent: December 22, 2020
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Tomokazu Yasunaga, Shinji Ohtomo, Toshiaki Sugimura
  • Patent number: 10870668
    Abstract: A compound comprising a first ligand LA having the formula Formula I, is disclosed. In Formula I, ring A is a five- or six-membered carbocyclic or heterocyclic ring; Y1 is selected from carbon and nitrogen; each of X1 to X4 is C or N; at least two adjacent R2s of ring B form a fused structure having the following formula: ring C is fused to ring B and the wavy lines are bonds attached to ring B; ring D and ring E are either a 5-membered aromatic ring or a 6-membered aromatic ring; each R1, R2, R3, RA, RB, RC, and RD is independently selected from a variety of substituents; ligand LA is coordinated to a metal M and, optionally, linked with other ligands; and M is optionally coordinated to other ligands. Organic light emitting devices and consumer products containing the compounds are also disclosed.
    Type: Grant
    Filed: April 9, 2018
    Date of Patent: December 22, 2020
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Zhiqiang Ji, Chun Lin, Jui-Yi Tsai
  • Patent number: 10873040
    Abstract: An organometallic compound is represented by Formula 1, M(L1)n1(L2)n2, where M is Ir, Pt, Os, Ru, Pd, Rh, Fe, Co, Ni, Au, Ag, or Cu, L1 is a ligand, L2 is a ligand, n1 is 1 or 2, and n2 is 1 or 2. An organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; and an organic layer between the first electrode and the second electrode and including an emission layer, where the organic layer includes at least one of the organometallic compound.
    Type: Grant
    Filed: April 13, 2018
    Date of Patent: December 22, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Mina Jeon, Soobyung Ko, Sungbum Kim, Heechoon Ahn, Mieun Jun, Youngkook Kim, Seokhwan Hwang
  • Patent number: 10864366
    Abstract: The present invention provides a bio-electrode composition including: a resin containing a urethane bond in a main chain and a silsesquioxane in a side chain; and an electro-conductive material, wherein the electro-conductive material is a polymer compound having one or more repeating units selected from fluorosulfonic acid salts shown by the following general formulae (1)-1 and (1)-2, sulfonimide salts shown by the following general formula (1)-3, and sulfonamide salts shown by the following general formula (1)-4. This can form a living body contact layer for a bio-electrode that is excellent in electric conductivity and biocompatibility, light in weight, manufacturable at low cost, and free from large lowering of the electric conductivity even when it is wetted with water or dried. The present invention also provides a bio-electrode in which the living body contact layer is formed from the bio-electrode composition, and a method for manufacturing the bio-electrode.
    Type: Grant
    Filed: October 24, 2018
    Date of Patent: December 15, 2020
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Jun Hatakeyama, Motoaki Iwabuchi, Osamu Watanabe, Keisuke Niida
  • Patent number: 10865275
    Abstract: Embodiments of the present disclosure describe initiating systems comprising an activator and an initiator, wherein the activator includes an alkyl borane or alkyl aluminum, wherein the initiator includes an organic cation and either an alkali metal or a compound containing an active protic hydrogen. Embodiments of the present disclosure further describe methods of making a polycarbonate comprising contacting a cyclic monomer and carbon dioxide in the presence of an activator and an initiator to form a polycarbonate, wherein the catalyst is one or more of an alkyl borane and alkyl aluminum, wherein the initiator includes an organic cation and either an alkali metal or a compound containing an active protic hydrogen.
    Type: Grant
    Filed: August 29, 2019
    Date of Patent: December 15, 2020
    Assignee: KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Yves Gnanou, Xiaoshuang Feng, Dongyue Zhang, Yahya Alzahrany, Senthil Boopathi, Nikolaos Hadjichristidis
  • Patent number: 10865276
    Abstract: The present invention relates to composition comprising an aqueous dispersion of microspheres and a class of a nonionic polyalkylene oxide of a distyryl or tristyryl phenol or an anionic polyalkylene oxide salt of a distyryl or tristyryl phenol and a process for preparing the composition. The microspheres have an average particle size in the range of from 1 ?m to 25 ?m, as well as a low coefficient of variation and low gel concentration; the composition is useful in coatings applications, especially where a matte finish is desired.
    Type: Grant
    Filed: May 13, 2020
    Date of Patent: December 15, 2020
    Assignee: Rohm and Haas Company
    Inventors: James C. Bohling, Ibrahim Eryazici, Philip R. Harsh, Partha S. Majumdar, Edwin A. Nungesser
  • Patent number: 10858479
    Abstract: The present invention relates to a Y-type discrete polyethylene glycol derivative as shown by Formula (I). The Y-type discrete polyethylene glycol derivative has the advantages of a determined molecular weight and number of segments in the chain, and can avoid the defects where the polyethylene glycol derivative itself is a mixture and the molecular weight is not homogeneous. The Y-type polyethylene glycol of the present invention can solve the problem of insufficient water solubility caused by an increase in the loading capacity when the discrete polyethylene glycol modifies an insoluble drug while increasing the drug loading capacity.
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: December 8, 2020
    Assignee: JENKEM TECHNOLOGY CO., LTD. (BEIJING)
    Inventors: Hui Zhu, Meina Lin, Xuan Zhao
  • Patent number: 10858471
    Abstract: A reversible crosslinking reactant composition is provided. The composition includes at least one furan-group-containing oligomer having a structure represented by Formula (I) and a bismaleimide compound having a structure represented by Formula (II), wherein the equivalent ratio of the furan group of the furan-group-containing oligomer having a structure represented by Formula (I) to the maleimide group of the bismaleimide compound having a structure represented by Formula (II) is from 0.5:1 to 1:0.5.
    Type: Grant
    Filed: November 2, 2018
    Date of Patent: December 8, 2020
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Kuei-Yi Chuang, Kuo-Chan Chiou, Feng-Po Tseng
  • Patent number: 10851207
    Abstract: A thermoplastic aromatic polysulfone is obtained by polymerizing a dihalogeno compound (A) and a dihydric phenol (B). The ratio (Mw/Mn) between a number average molecular weight (Mn) and a weight average molecular weight (Mw) is at least 1.80 and less than 1.90, and the number average molecular weight (Mn) is at least 6,000 and less than 14,000. In (A) and (B), each of X and X? independently represents a halogen atom; each of R1, R2, R3 and R4 independently represents an alkyl group having 1 to 4 carbon atoms or an alkoxy group having 1 to 4 carbon atoms; each of n1, n2, n3 and n4 independently represents an integer of 0 to 4; and when n1, n2, n3 or n4 is an integer of 2 to 4, a plurality of R1, R2, R3 or R4 groups may be the same or different from each other.
    Type: Grant
    Filed: February 2, 2017
    Date of Patent: December 1, 2020
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Shinji Ohtomo, Masanobu Matsubara