Patents Examined by Gregory Listvoyb
  • Patent number: 10844173
    Abstract: A method for manufacturing a poly(imide) prepolymer powder includes combining a bisanhydride powder or organic diamine and a solvent comprising an alcohol, a water-soluble ketone or water to form a mixture, adding an organic diamine or bisanhydride powder to the mixture to form a poly(imide) prepolymer, and removing the solvent to provide the poly(imide) prepolymer powder. A method for manufacturing a poly(imide) prepolymer varnish includes combining a bisanhydride powder or organic diamine and a solvent comprising an alcohol, a water-soluble ketone or water to form a mixture, and adding an organic diamine or bisanhydride powder to the mixture to form a poly(imide) prepolymer. The method of manufacturing the varnish further includes at least one of adding an effective amount of a secondary or tertiary amine to solubilize the poly(imide) prepolymer powder, heating the mixture to a temperature effective to provide the varnish, or agitating the mixture to provide the varnish.
    Type: Grant
    Filed: August 1, 2017
    Date of Patent: November 24, 2020
    Assignee: SABIC GLOBAL TECHNOLOGIES B.V.
    Inventors: Viswanathan Kalyanaraman, Norimitsu Yamaguchi
  • Patent number: 10844241
    Abstract: The present invention relates to a dimer fatty acid/dimer diol reaction product which is preparable by reacting (a) dimer fatty acids with (b) at least one dimer diol, where components (a) and (b) are used in a molar ratio of 0.7/2.3 to 1.3/1.7 and the resulting dimer fatty acid/dimer diol reaction product possesses a number-average molecular weight of 1200 to 5000 g/mol and an acid number <10 mg KOH/g. The invention further relates to a pigmented aqueous basecoat material which comprises this dimer fatty acid/dimer diol reaction product, and also to the use of said dimer fatty acid/dimer diol reaction product in pigmented aqueous basecoat materials. It relates, further, to a method for producing multicast paint systems, and also to the multicoat paint systems producible by means of said method. The present invention relates, furthermore, to the refinishing of defects on multicoat paint systems.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: November 24, 2020
    Assignee: BASF Coatings GmbH
    Inventors: Bernhard Steinmetz, Hardy Reuter, Peter Hoffmann
  • Patent number: 10844171
    Abstract: The present disclosure provides a production method of a semi-aromatic polyamide, and a semi-aromatic polyamide. Said production method of a semi-aromatic polyamide includes: step 1 of subjecting an initial charge of a diamine and a binary acid in an amine/acid molar ratio of less than 1.0 to form a slurry together with water and a catalyst, and subjecting the slurry to heating and dissolution to form a saline solution; step 2 of dehydrating said saline solution after detecting the composition thereof, detecting the content of diamine in a steam condensate from a dehydration unit, adjusting the amine/acid molar ratio to be larger than 1.0 by a molten diamine and a monoacid as a molecular weight regulator, and performing pre-polymerization; and step 3 of subjecting a pre-polymerization solution to post-polycondensation after vacuum flashing. The semi-aromatic polyamide of the present disclosure has a low gel content, excellent performance and extensive scope of application.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: November 24, 2020
    Assignees: Zhejiang Nhu Special Materials Co., Ltd., Zhejiang University, Zhejiang Nhu Company Ltd.
    Inventors: Zhirong Chen, Hong Yin, Qin Zhang, Xiaoxiao Wu, Wengang Hong, Hangjun Deng, Guiyang Zhou, Changze Wang
  • Patent number: 10836117
    Abstract: The present invention relates to a method for reducing the crystallization temperature an the melting temperature of a polyamide powder resulting from the polymerization of at least one predominant monomer, in which the reduction in the crystallization temperature is greater than the reduction in the melting temperature, said method comprising a step of polymerization of said at least one predominant monomer with at least one different minor comonomer polymerized according to the same polymerization process as said at least one predominant monomer, said at least one minor comonomer being chosen from aminocarboxylic acids, diamine/diacid pairs, lactams and/or lactones, and said at least one minor comonomer representing from 0.1% to 20% by weight of the total blend of said monomers(s) and comonomer(s), preferably from 0.5% to 15% by weight of said total blend, preferably from 1% to 10% by weight of said total blend.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: November 17, 2020
    Assignee: ARKEMA FRANCE
    Inventors: Gregory Filou, Cyrille Mathieu, Holger Senff
  • Patent number: 10827799
    Abstract: Debondable adhesive compositions are provided. This disclosure also provides articles of footwear and components for articles of footwear including a debondable adhesive matrix. The debondable adhesive matrix can allow for the bonding and debonding of two substrates in the article of footwear or component thereof. This disclosure also provides methods of making the debondable adhesive compositions and methods of using said compositions for bonding and debonding the substrates, e.g. for bonding and debonding of an upper and an outsole in an article of footwear.
    Type: Grant
    Filed: February 17, 2018
    Date of Patent: November 10, 2020
    Assignee: NIKE, Inc.
    Inventors: Eduardo Alberto Gonzalez de los Santo, Kethinni Chittibabu, Debora Marcela Martino, Sofia Trakhtenberg, John C. Warner
  • Patent number: 10829439
    Abstract: Disclosed is a method for producing adipamide, which may include the steps of: (a) reacting glucose, nitric acid (HNO3), sodium nitrite (NaNO2) and potassium hydroxide (KOH) to produce a glucaric acid potassium salt, (b) producing glucamide by reacting the glucaric acid potassium salt, with an acidic solution and removing a potassium ion from the glucaric acid potassium salt, (c) preparing an reaction admixture by adding the glucamide and a catalyst to hydrogen halide and acetic acid, and (d) treating the reaction admixture with hydrogen gas in a reactor thereby producing the adipamide.
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: November 10, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Chae-Hwan Hong, Na-Kyong Yun, Ha-Eun Jeong, Sung-Wan Jeon
  • Patent number: 10815378
    Abstract: Provided are a polyamic acid resin derived from an aromatic diamine, an aromatic dianhydride, a cycloaliphatic dianhydride and an aromatic diacid dichloride, and a polyamideimide film including polyamideimide derived from an aromatic diamine, an aromatic dianhydride, a cycloaliphatic dianhydride and an aromatic diacid dichloride.
    Type: Grant
    Filed: September 11, 2018
    Date of Patent: October 27, 2020
    Assignees: SK Innovation Co., Ltd., SK Global Chemical Co., Ltd., SK IE Technology Co., Ltd.
    Inventors: Hyeon Jeong Kim, Sang Yoon Park, Tae Sug Jang, Jin Hyung Park
  • Patent number: 10815349
    Abstract: It is intended to provide a resin composition that suppresses the thermal expansion of a printed circuit board more than ever and also prevents the bleedout of substances from the printed circuit board, while maintaining a high glass transition temperature. The resin composition of the present invention contains an alkenyl-substituted nadimide, a maleimide compound, and an epoxy-modified cyclic silicone compound.
    Type: Grant
    Filed: July 4, 2016
    Date of Patent: October 27, 2020
    Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Katsuya Tomizawa, Tomoki Hamajima, Shohei Yamaguchi, Eisuke Shiga, Meguru Ito
  • Patent number: 10808080
    Abstract: A monomer is represented by Chemical Formula 1: wherein, in Chemical Formula 1, R1, R2, o, p, L1, A1, Ra, m, and n are the same as defined in the detailed description.
    Type: Grant
    Filed: July 30, 2018
    Date of Patent: October 20, 2020
    Assignee: SAMSUNG ELECTRONICS CO, LTD.
    Inventors: Dmitry Androsov, Changki Kim, Kalinina Fedosya, Hyunseok Choi
  • Patent number: 10808073
    Abstract: Novel processes of preparing block polyester copolymers while precisely controlling the stereoconfiguration (e.g., tacticity), chemical composition and/or length of each unit (block) are provided. Block polyester copolymers featuring desirable combinations of two or more blocks featuring different stereoconfiguration (e.g., tacticity), chemical composition and/or length, including triblock, tetrablock and higher block copolymers are also provided. A novel family of organometallic magnesium complexes and uses thereof in preparing polyesters and block polyester copolymers are also provided.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: October 20, 2020
    Assignee: Ramot at Tel-Aviv University Ltd.
    Inventors: Moshe Kol, Tomer Rosen
  • Patent number: 10797242
    Abstract: An organic compound having an excellent electron injection and transport performance is provided as a material for a low-power-consumption organic electroluminescent device. A low-power-consumption organic electroluminescent device is also provided by using the compound. The compound is a compound of general formula (1) or (2) having a substituted bipyridyl and triphenylene ring structure. The organic electroluminescent device includes a pair of electrodes, and one or more organic layers sandwiched between the pair of electrodes, and uses the compound as constituent material of at least one of the organic layers.
    Type: Grant
    Filed: May 24, 2017
    Date of Patent: October 6, 2020
    Assignees: Hodogaya Chemical Co., Ltd., Kyushu University, National University Corporation
    Inventors: Chihaya Adachi, Kazunori Togashi, Norimasa Yokoyama, Shintaro Nomura
  • Patent number: 10787554
    Abstract: The invention relates to a process for the preparation of expandable polylactic-acid-containing pellets, comprising the steps of a) Melting and incorporation by mixing of the following components: i) from 65 to 95% by weight, based on the total weight of components i to iii, of polylactic acid, where the polylactic acid consists of: ia) from 65 to 95% by weight of polylactic acid with content of from 0.3 to 5% of D-lactic acid and ib) from 5 to 35% by weight of polylactic acid with content of from 10 to 18% of D-lactic acid; ii) from 5 to 35% by weight, based on the total weight of components i to iii, of an aliphatic polyester selected from the group consisting of polybutylene succinate, polybutylene succinate-co-adipate and polybutylene succinate-co-sebacate; iii) from 0 to 2% by weight, based on the total weight of components i to iii, of a compatibilizer; iv) from 0.
    Type: Grant
    Filed: June 1, 2017
    Date of Patent: September 29, 2020
    Assignee: BASF SE
    Inventors: Bangaru Dharmapuri Sriramulu Sampath, Jerome Lohmann, Peter Gutmann
  • Patent number: 10781536
    Abstract: The present invention relates to a preparation method of para-aramid nanofibers, and belongs to the technical field of novel polymer materials. The para-aramid nanofibers prepared in the present invention have a diameter of 10-100 nm, and a length of hundreds of microns. The preparation method includes: adding a certain amount of surfactant in a PPTA low-temperature polymerization process, and controlling aggregation of PPTA molecules along with growth of a PPTA molecule chain, thereby preparing the para-aramid fibers with a uniform size and an adjustable nano-scale diameter under assistance of other means (e.g., a coagulator and high-speed shearing dispersion). The present invention is short in production process and simple in equipment, can realize stable batch production to meet needs of large-scale production of the para-aramid nanofibers, has wide application prospects and can be applied to preparing a lithium-ion battery separator, a high-performance composite material and the like.
    Type: Grant
    Filed: February 4, 2018
    Date of Patent: September 22, 2020
    Inventor: Xinlin Tuo
  • Patent number: 10766231
    Abstract: Disclosed is a multilayer film comprising a first surface layer comprising a cross-linked, partially neutralized copolymer of ethylene and one or more ?,?-unsaturated C3 to C8 carboxylic acid, and a second surface layer comprising a polyamide; a use of such multilayer film for, for example, decorating a substrate such as for example a ski, snowboard or skate board; as well as a ski comprising such coextruded multilayer film. Also disclosed is a process for decorating a substrate comprising coextruding a multilayer film comprising the first surface layer and the second surface layer comprising a polyamide; irradiating the coextruded multilayer film to cross-link the film; printing a decorative element on the second surface layer comprising a polyamide; cutting the multilayer film; contacting the second surface layer of the multilayer film with a surface to be decorated on a substrate; laminating, e.g., by heat, the multilayer film to the surface to be decorated.
    Type: Grant
    Filed: October 25, 2013
    Date of Patent: September 8, 2020
    Assignee: PERFORMANCE MATERIALS NA, INC.
    Inventors: Loic Pierre Rolland, Aurelien Barrois
  • Patent number: 10767014
    Abstract: The instant disclosure relates to a method for manufacturing a transparent polyimide film, including providing a polyamic acid solution having a fluorine content more than 12%; adding a dehydrating agent and a catalyst into the polyamic acid solution, the dehydrating agent having an equivalent number equal to or larger than 3; and baking the polyamic acid solution under a temperature ranging from 250 to 350° C. for performing a chemical imidization process so that the transparent polyimide film is obtained. The transparent polyimide film has an elongation rate of more than 30% and a b* value in a CIELAB coordinate of less than 3.5.
    Type: Grant
    Filed: October 18, 2017
    Date of Patent: September 8, 2020
    Assignee: TAIMIDE TECH. INC.
    Inventor: Wen-Hsuan Chung
  • Patent number: 10756350
    Abstract: A binder includes a third polymer including a cross-linked product of a first polymer and a second polymer, wherein the first polymer includes a first functional group and is at least one selected from a polyamic acid and a polyimide, wherein the second polymer includes a second functional group and is water-soluble, and wherein the first polymer and the second polymer are cross-linked by an ester bond formed by a reaction of the first functional group and the second functional.
    Type: Grant
    Filed: July 21, 2017
    Date of Patent: August 25, 2020
    Assignees: SAMSUNG ELECTRONICS CO., LTD., SAMSUNG SDI CO., LTD.
    Inventors: Woojin Bae, Seunguk Kwon, Sangkook Mah, Jeeeun Yang, Dukhyoung Yoon, Sungsoo Han
  • Patent number: 10752603
    Abstract: A process for the purification of an oxydiphthalic anhydride includes contacting a mixture of an oxydiphthalic anhydride and at least one of the corresponding oxydiphthalic diacid, a corresponding oxydiphthalic tetraacid, a halophthalic anhydride, and a catalyst with a solvent to provide a slurry. The solvent is capable of solubilizing the corresponding oxydiphthalic diacid, the corresponding oxydiphthalic tetraacid, the halophthalic anhydride, and the catalyst at a temperature of 15 to 50° C., and the oxydiphthalic anhydride is substantially insoluble in the solvent at this temperature. The oxydiphthalic anhydride can be isolated from the slurry. A purified oxydiphthalic anhydride and a polyetherimide prepared therefrom are also disclosed.
    Type: Grant
    Filed: February 8, 2019
    Date of Patent: August 25, 2020
    Assignee: SABIC GLOBAL TECHNOLOGIES, B.V.
    Inventors: Hariharan Ramalingam, Tarun Kumar Pal, Meerakani Mohamed Ali Sait, Thomas Link Guggenheim, Lioba Maria Kloppenburg
  • Patent number: 10744234
    Abstract: Provided is a method for preventing postoperative adhesion of an organ in a wound site using the application of an antiadhesive material thereto. The antiadhesive material contains a poly-?-glutamic acid having a weight-average molecular weight of 600,000 to 13,000,000, or a kinematic viscosity at 37° C. of 2 cSt to 15 cSt when dissolved in distilled water at a concentration of 0.05% by mass and/or a salt thereof, as an effective ingredient. The antiadhesive material may be in a form such as powder, and therefore, for example, is easy to handle even in relatively localized surgery such as endoscopic surgery and can more reliably prevent adhesion.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: August 18, 2020
    Assignee: NIPRO CORPORATION
    Inventors: Yusuke Nakamura, Kazuhisa Matsuda
  • Patent number: 10745520
    Abstract: The invention relates to a process for producing aromatic polyimides, comprising the following steps: (a) preparation of one or more solid salt(s) by reacting one or more aromatic tetracarboxylic acid(s) and one or more diamine(s) according to a mole ratio ranging from 0.95 to 1.05; (b) drying of the solid salt(s), (c) addition, to the dry salt resulting from step (b), of one or more compound(s) (C) comprising one or more group(s) chosen from a carboxylic acid group, an anhydride group, an ester group and an acyl chloride group; (d) solid-state polymerization of said solid salt(s) in the presence of the compound(s) (C).
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: August 18, 2020
    Assignees: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE CLAUDE BERNARD LYON1, UNIVERSITE JEAN MONNET SAINT-ETIENNE, Rhodia Operations, Institut National Des Sciences Appliquees De Lyon
    Inventors: Stéphane Jeol, René Rossin, Vincent Mollet, Benjamin Paci, Françoise Fenouillot-Rimlinger, Alain Rousseau
  • Patent number: 10738163
    Abstract: A fast-response thermoplastic shape-memory polyimide and a preparation method thereof, related to a polyimide and a preparation method thereof. The present invention aims to solve the problem in high-temperature conditions of slow shape recovery poor stability, and poor mechanical properties of a shape-memory polymer prepared by utilizing an existing method. The structural formula of the polyamide of the present invention is as represented by formula (I). The preparation method is: 1. preparation of a diamine solution; 2. preparation of an anhydride-terminated high molecular weight polyamic acid; 3. preparation of a viscous sol-gel; and, 4. preparation of the thermoplastic shape-memory polyimide. The thermoplastic shape-memory polyimide prepared per the present invention is provided with a very fast shape recovery rate and improved shape-memory effect. The present invention is applicable in the field of polyimide preparation.
    Type: Grant
    Filed: November 19, 2018
    Date of Patent: August 11, 2020
    Assignee: Harbin Institute of Technology
    Inventors: Jingsong Leng, Xinli Xiao, Yanju Liu, Deyan Kong