Patents Examined by Gregory Listvoyb
  • Patent number: 11326046
    Abstract: The present disclosure provides a composition. In an embodiment a composition is provided and includes: (A) a propylene-based interpolymer having the following: (i) a density from 0.850 g/cc to 0.900 g/cc; and (ii) a melt viscosity, at 177° C., less than, or equal to, 10, 000 mPa·s.; and (B) a rosin ester containing the following: (i) greater than, or equal to, 75 mol % aliphatic carbon, based on total moles of carbon in the rosin ester; and (ii) less than, or equal to, 3.0 mol % ester group carbon, based on total moles of carbon in the rosin ester.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: May 10, 2022
    Assignee: Dow Global Technologies LLC
    Inventors: Ling Zhang-Watson, Wanfu Ma
  • Patent number: 11326030
    Abstract: Disclosed herein are a polyamide-imide film which is transparent and exhibits superior mechanical properties such as surface hardness, etc. and a method of preparing the same. The polyamide-imide film a copolymer of an aromatic diamine, an aromatic dianhydride, and an aromatic dicarbonyl compound, wherein the aromatic diamine and the aromatic dianhydride forms an imide unit; the aromatic diamine and the aromatic dicarbonyl compound forms an amide unit; and the amide unit accounts for 50-70 mol % of 100 mol % of the units of the copolymer, thereby exhibiting transparency and superior mechanical properties including surface hardness.
    Type: Grant
    Filed: April 11, 2017
    Date of Patent: May 10, 2022
    Assignee: SKC CO., LTD.
    Inventors: Jin Woo Lee, Dong Jin Lim, Jae In Ahn, Jong Ho Lee, Sang Il Kim, Sun Hwan Kim, Dae Sung Oh, Dawoo Jeong
  • Patent number: 11326025
    Abstract: The present invention relates to a polyamideimide copolymer and a colorless and transparent polyamideimide copolymer film. The polyamideimide copolymer according to the present invention enables to provide a polyamideimide film having improved UV shielding function while exhibiting excellent scratch resistance and mechanical properties.
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: May 10, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Bi Oh Ryu, Soon Yong Park, Young Ji Tae, Young Seok Park, Kwan Yeol Paek
  • Patent number: 11326053
    Abstract: The present invention addresses the problem of enhancing the fluidity of a polybutylene terephthalate resin composition that uses a halogenated benzyl acrylate-based flame retardant as a flame retardant while maintaining properties such as excellent mechanical strength that a polybutylene terephthalate-based resin possesses. The problem is solved by adding a protic compound to the polybutylene terephthalate resin composition that uses a halogenated benzyl acrylate-based flame retardant as a flame retardant.
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: May 10, 2022
    Assignee: POLYPLASTICS CO., LTD.
    Inventors: Kazuya Goshima, Itsuki Saito
  • Patent number: 11319409
    Abstract: Described is a polyimide prepared from a diamine containing a spiro or cardo group in a molecule structure, wherein the dimensional stability of the polyimide can be improved at a high temperature, and thus the polyimide can provide a polyimide film useful for a flexible substrate.
    Type: Grant
    Filed: January 17, 2018
    Date of Patent: May 3, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Hye Won Jeong, Kichul Koo, Kyungjun Kim
  • Patent number: 11306181
    Abstract: The present invention relates to a process for preparing a granular nylon salt material, wherein an aqueous mixture, comprising at least 65 wt. % of salt components, and at most 35 wt. % of an aqueous medium, the weight percentages (wt. %) being relative to the total weight of the aqueous mixture, is flashed from a pressure vessel via a flash valve into a flash chamber, thereby evaporating the aqueous medium in an amount sufficient to result in a residual moisture content of at most 7.5 wt. %, and forming a granular nylon salt material. The invention also relates to a process for preparing a nylon polymer, comprising direct solid state polymerization of the granular salt material prepared by flash granulation.
    Type: Grant
    Filed: January 31, 2020
    Date of Patent: April 19, 2022
    Assignee: DSM IP ASSETS B.V.
    Inventors: Bas Van Laarhoven, Eric Grolman, Michiel Muyris
  • Patent number: 11306183
    Abstract: One embodiment may provide a method for producing a polyimide film, the method comprising the steps of: polishing the surface of a casting body; producing a gel sheet by casting a precursor on the polished surface of the casting body, and drying same; and producing a polyimide film by heat-treating the gel sheet, wherein the roughness of the polished surface of the casting body is 0.1 nm to 160 nm, and when the area of the casting body onto which the precursor is casted is partitioned by 1 cm×1 cm, the area corresponding to a defect reduction region is at least 90%, and the polyimide film has a yellowness of at most 3, a haze of at most 1%, a permeability of at least 88%, a modulus of at least 5.0 GPa and a surface hardness of at least HB.
    Type: Grant
    Filed: February 5, 2018
    Date of Patent: April 19, 2022
    Assignee: SKC CO., LTD.
    Inventors: Sunhwan Kim, Jin Woo Lee, Dae Seong Oh, Dawoo Jeong, Kyu-Hun Kim
  • Patent number: 11306052
    Abstract: The present invention concerns a method of oxidizing a cycloalkane to form a product mixture containing a corresponding alcohol and ketone, said method comprising contacting a cycloalkane with a hydroperoxide compound in the presence of a catalytic effective amount of a cerium oxide based catalyst.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: April 19, 2022
    Assignee: Performance Polyamides, SAS
    Inventors: Sandra Chouzier, Fabien Ocampo, Sergio Mastroianni, Avelino Corma, Mercedes Boronat, Javier Tirso Lopez Ausens
  • Patent number: 11299588
    Abstract: The invention concerns a method for producing polyamide from an amino ester of formula NH2—(CH2)n—COOR, in which R represents an alkyl group and n represents an integer ranging from 5 to 14, comprising: a first reaction step in the presence of water, at a first temperature; followed by a second reaction step at a second temperature higher than the first temperature.
    Type: Grant
    Filed: November 14, 2014
    Date of Patent: April 12, 2022
    Assignee: ARKEMA FRANCE
    Inventors: Thierry Briffaud, Pierre Nogues, Guillaume Le, Frédéric Malet
  • Patent number: 11299590
    Abstract: The present invention relates to new biopolymer, i.e. bioorganic nylons incorporating peptidic blocks obtained by a process of polymerization of amino peptidic blocks. The process of the invention comprises the steps of mixing amino peptidic blocks with or without a diaminoalcane and reacting the mixture according to polycondensation with a diacyl chloride in homogeneous or heterogeneous media.
    Type: Grant
    Filed: December 9, 2016
    Date of Patent: April 12, 2022
    Inventors: Jean Martinez, Ahmad Mehdi, Gilles Subra, Saïd Jebors
  • Patent number: 11299589
    Abstract: Processes for preparing a polyamide, a polyamide material obtained by such processes, a nylon salt to be used therein, and processes for making the nylon salt are disclosed. The processes for preparing the polyamide include a direct solid state polymerization process. The salt used herein is a granulate material, prepared by a process, comprising spraying an aqueous solution comprising a diamine and a dicarboxylic acid dissolved in an aqueous medium, or an aqueous slurry comprising a diammonium dicarboxylate salt dispersed in an aqueous medium directly obtained from such an aqueous solution, onto or in a fluidized bed of diammonium dicarboxylate salt particles, while evaporating the aqueous medium, thereby forming a granulate salt material.
    Type: Grant
    Filed: January 31, 2020
    Date of Patent: April 12, 2022
    Assignee: DSM IP ASSETS B.V.
    Inventors: Bas Van Laarhoven, Christiaan Johannes Cornelis Stoelwinder, Mark Helmsing
  • Patent number: 11292877
    Abstract: Provided is an amorphous polyamide resin that has a small weight change rate under hot and humid conditions and that can maintain a good appearance even when formed into a molded article and placed under hot and humid conditions. Also provided is a molded article including the amorphous polyamide resin. An amorphous polyamide resin includes: constituent units derived from a diamine and constituent units derived from a dicarboxylic acid, not less than 70 mol % of the constituent units derived from a diamine being constituent units derived from isophoronediamine, the constituent units derived from a dicarboxylic acid including constituent units derived from an ?,?-straight chain aliphatic dicarboxylic acid having from 8 to 14 carbons and constituent units derived from an aromatic dicarboxylic acid.
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: April 5, 2022
    Assignee: Mitsubishi Gas Chemical Company, Inc.
    Inventors: Masaki Yamanaka, Tomonori Kato, Hatsuki Oguro, Nobuhide Tsunaka
  • Patent number: 11286347
    Abstract: A branched polyimide of the formula (I) wherein G is a group having a valence of t, present in an amount of 0.01 to 10 mol %, or 0.05 to 5 mol %, or 0.1 to 4 mol %, or 0.1 to 3 mol %, each of Q, M, D, V, and R are as defined herein, q is 0 or 1, m is 0 or 1, d is 0 or 1, p is 1 or 2, t is 2 to 6, preferably 2 to 4, and each n is independently the same or different, and is 1 to 1,000, provided that the total of all values of n is greater than 4, wherein the branched polyimide has a zero-shear viscosity in a range from 500 to 15,000 Pa·s, a rheology ratio of 1.1 to 5, and a strain hardening ratio of 1 to 6.
    Type: Grant
    Filed: December 29, 2017
    Date of Patent: March 29, 2022
    Assignee: SHPP GLOBAL TECHNOLOGIES B.V.
    Inventors: Roy Ray Odle, Peter Johnson, Manojkumar Chellamuthu, Hee Won Kong
  • Patent number: 11286375
    Abstract: The present invention provides a conjugated diene polymer containing a low vinyl portion having a vinyl content of 2 to 20% by mol and a high vinyl portion having a vinyl content of 50% by mol or more, and a method for producing the same; a rubber composition containing a rubber component containing the conjugated diene polymer, at least one filler selected from the group consisting of carbon black and silica, a silane coupling agent, and a crosslinking agent; crosslinked rubber prepared by crosslinking the rubber composition; and a rubber product and a tire containing the crosslinked rubber. The tire can achieve both the abrasion resistance and the low fuel consumption capability, the conjugated diene polymer, the rubber composition, and the crosslinked rubber are preferred for producing the tire, and the rubber product is excellent in abrasion resistance and low heat generation property.
    Type: Grant
    Filed: August 14, 2019
    Date of Patent: March 29, 2022
    Assignee: Bridgestone Cornoration
    Inventors: Kyohei Kotani, Madoka Kimura
  • Patent number: 11279673
    Abstract: An embodiment relates to an aromatic polythiol compound for optical materials, and the aromatic polythiol compound according to the embodiment contains a phenyl group and a large number of sulfur atoms in its polythiol structure so that a polymerizable composition and an optical material obtained therefrom have excellent optical properties such as high refractive index and low specific gravity, as well as excellent mechanical properties such as low cure shrinkage; thus, they can be advantageously used for producing various plastic optical lenses such as eyeglass lenses and camera lenses.
    Type: Grant
    Filed: July 6, 2017
    Date of Patent: March 22, 2022
    Assignee: SKC CO., LTD.
    Inventors: Seung Mo Hong, Hyeon Myeong Seo, Jongmin Shim, Sang Mook Kim, Jung Hwan Myung, Junghwan Shin
  • Patent number: 11274206
    Abstract: An object of the present invention is to provide a polyamideimide resin for an optical member having both high flexibility and bending resistance, and in particular, a polyamideimide resin for a front plate of an image display apparatus, and an optical member such as a front plate containing the polyamideimide resin.
    Type: Grant
    Filed: January 15, 2018
    Date of Patent: March 15, 2022
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Koji Miyamoto, Nozomi Masui, Hiroko Sugiyama, Katsunori Mochizuki, Junichi Ikeuchi
  • Patent number: 11274182
    Abstract: A polyamic acid that has a fluorine atom content of 25 wt % or less and an amount of a fluorine-containing diamine in the polyamic acid is 70 mol % or more with respect to 100 mol % of a sum of diamine components. The total number of moles of tetracarboxylic acid component in the polyamic acid is 0.960 times or more and less than 1.000 time total number of moles of diamine component. The polyamic acid preferably has the structural unit represented by formula (1) and the structural unit represented by formula (2). The polyamic acid may contain trans-1,4-cyclohexanediamine as the diamine component.
    Type: Grant
    Filed: May 2, 2018
    Date of Patent: March 15, 2022
    Assignee: KANEKA CORPORATION
    Inventors: Hirofumi Nakayama, Mari Uno
  • Patent number: 11267942
    Abstract: One embodiment may provide a polyamide-imide film which is colorless and transparent while having an adequate level of solubility and excellent mechanical properties, the polyamide-imide film comprising a polyamide-imide polymer formed by polymerizing an aromatic diamine compound, an aromatic dianhydride compound and a dicarbonyl compound, wherein, for a square cross-section of 1 cm×1 cm and a thickness of 30 um to 100 mm, the polyamide-imide film has a dissolution time of 5-60 minutes in 10 ml of dimethylacetamide (DMAc), and for a thickness of 50 mm, the polyamide-imide film has a yellowness of at most 5, a haze of at most 2%, a permeability of at least 85% and a modulus of at least 5.0 GPa.
    Type: Grant
    Filed: February 2, 2018
    Date of Patent: March 8, 2022
    Assignee: SKC CO., LTD.
    Inventors: Sunhwan Kim, Dae Seong Oh, Jin Woo Lee, Dawoo Jeong, Dong Jin Lim
  • Patent number: 11261304
    Abstract: The present invention provides a polyimide film forming composition which comprises a polyamic acid or a polyimide in an oligomer form or in a low-molecular weight form, the polyamic acid or the polyimide being prepared from a diamine containing an intramolecular imide group, and thus can provide a polyimide film having improved heat resistance while retaining optical properties thereof. In addition, the polyimide film according to the present invention can reduce not only a laser energy density (E/D) required in the laser exfoliation process but also remarkably decrease an amount of ash generated by an exfoliation process, thereby further improving the reliability of a device in a display manufacturing process.
    Type: Grant
    Filed: October 27, 2017
    Date of Patent: March 1, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Bo Ra Shin, Cheolmin Yun, Hye Won Jeong, Kyungjun Kim
  • Patent number: 11261327
    Abstract: The invention relates to a thermoplastic polymer composition comprising A. a polyamide B. a reinforcing agent, and C. an laser direct structuring (LDS) additive wherein the polyamide comprises a blend of —(A.1) a semi-crystalline semi-aromatic polyamide, and —(A.2) an amorphous semi-aromatic polyamide or an aliphatic polyamide, or a mixture thereof; or a blend of —(A.3) a semi-crystalline aliphatic polyamide, and —(A.4) an amorphous semi-aromatic polyamide; and D. a metal (di)phosphinate. The present invention further relates an article prepared form the thermoplastic polymer composition, and article made by a LDS process and a process for preparing the same.
    Type: Grant
    Filed: May 25, 2016
    Date of Patent: March 1, 2022
    Assignee: DSM IP ASSETS B.V.
    Inventor: Frank Peter Theodorus Johannes Van Der Burgt