Patents Examined by Hui H Chin
  • Transparent fluoropolymer films
    Patent number: 11401389
    Abstract: In a first aspect, a transparent fluoropolymer film includes, a vinyl fluoride polymer, 2 to 8 wt % of an acrylate polymer, and 0.1 to 4 wt % of a triazine UV absorber. After heating at 100° C. for 96 hours, the transparent fluoropolymer film has a 340 nm absorbance of at least 1.5. In a second aspect, a transparent multilayer film includes a polymeric substrate film and a fluoropolymer film. The fluoropolymer film includes a vinyl fluoride polymer, 2 to 8 wt % of an acrylate polymer and 0.1 to 4 wt % of a triazine UV absorber. After heating at 100° C. for 96 hours, the transparent fluoropolymer film has a 340 nm absorbance of at least 1.5.
    Type: Grant
    Filed: May 9, 2019
    Date of Patent: August 2, 2022
    Assignee: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventor: Michael T Demko
  • Prepreg, metal-clad laminate, and wiring board
    Patent number: 11401393
    Abstract: A prepreg includes a resin composition or a semi-cured product of the resin composition, and a glass cloth, wherein the resin composition contains a modified polyphenylene ether compound terminally modified with a substituent having an unsaturated carbon-carbon double bond, and a crosslinkable curing agent having an unsaturated carbon-carbon double bond in a molecule, a content of the modified polyphenylene ether compound is 40 to 90 mass % with respect to a total mass of the modified polyphenylene ether compound and the crosslinkable curing agent, a cured product of the resin composition has a relative permittivity of 2.6 to 3.8, the glass cloth has a relative permittivity of 4.7 or less and a dielectric loss tangent of 0.0033 or less, and a cured product of the prepreg has a relative permittivity of 2.7 to 3.8 and a dielectric loss tangent of 0.002 or less.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: August 2, 2022
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Yuki Kitai, Mikio Sato, Yasunori Hoshino, Masashi Koda, Takayoshi Ozeki, Hiroaki Fujiwara
  • Self-repairing polymeric coatings
    Patent number: 11396604
    Abstract: A coating composition may include a polymeric binder and bacteria that exhibit biologically induced mineralization (BIM) or biologically controlled mineralization (BCM) of calcium carbonate (CaCO3) in the presence of environmental calcium. The bacteria may exhibit BIM or BCM of CaCO3 using the ChaA antiporter protein. The coating formulations may be used to form coatings that exhibit self-healing properties in response to damage, such as a cut, tear, puncture, abrasion, or the like. For example, in response to being exposed to the damage, the bacteria may utilize nutrients, a calcium source, and water to cause precipitation of CaCO3 at the site of the damage. The nutrients, the calcium source, and the water may be provided as part of the coating formulation, as part of another layer of a coating system, from an external source (e.g., an applied spray or wash), or combinations thereof.
    Type: Grant
    Filed: May 23, 2019
    Date of Patent: July 26, 2022
    Assignees: SWIMC LLC, The University of Akron
    Inventors: Hazel A Barton, Kathleen R. Gisser, Tony A. Rook
  • Thermoplastic elastomer compounds exhibiting low compression set properties
    Patent number: 11390739
    Abstract: A tackifier to modify the Tan Delta of midblock segments of a hydrogenated styrenic block copolymer in a thermoplastic elastomer compounds aids in rendering the HSBC TPE more effective as an overmolding compound having a low percentage compression set value when measured at the high temperature compression set standard. The HSBC TPE can overmold effectively upon polar polymeric substrates depending on the bonding agent chosen.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: July 19, 2022
    Assignee: Avient Corporation
    Inventor: Jiren Gu
  • Adhesive composition
    Patent number: 11390780
    Abstract: The present invention relates to an adhesive composition comprising an ?-olefin homopolymer, an ?-olefin copolymer having a melting point of 90° C. or higher, a tackifier resin, a wax, and a liquid softener, wherein a complex shear modulus (I) measured immediately after heating the adhesive composition to 180° C. and cooling the same to 20° C. is 1 MPa or less.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: July 19, 2022
    Assignee: SHOWA DENKO MATERIALS CO., LTD.
    Inventor: Yuzuru Takahashi
  • Bifunctional coating compositions
    Patent number: 11390758
    Abstract: A free-flowing dry mix of various chemical components can be applied in its dried form, as is contemplated by typical powder coating operations, as well as dispersed within a liquid carrier and applied in liquid form. When liquefied, this bifunctional composition retains similar viscosity to liquid coatings, while simultaneously avoiding any reaction with or degradation by the liquid carrier. The liquefied powder is preferable to existing liquid coatings because it avoids the use of any volatile organic compounds or other solvents, whereas the final, cured coating produced by these bifunctional compositions are indistinguishable regardless of whether they are applied in dry or liquefied form.
    Type: Grant
    Filed: September 30, 2019
    Date of Patent: July 19, 2022
    Inventors: Joseph H. James, Sanjana Das
  • Cellulose acetate film with optical properties
    Patent number: 11384224
    Abstract: Cellulose acetate films having excellent optical properties are disclosed. The films are made from cellulose acetate and a plasticizer. A solvent cast precursor film is initially formed and then subjected to high temperatures and pressures for improving at least one optical property.
    Type: Grant
    Filed: October 7, 2019
    Date of Patent: July 12, 2022
    Assignee: Celanese International Corporation
    Inventor: Jo Marshall
  • PFA material and preparation method thereof
    Patent number: 11370892
    Abstract: The present invention provides a polymer film on array (PFA) material and a preparation method thereof. The PFA material includes a polymer film on array (PFA) resin, a polysiloxane resin dispersion liquid, and a solvent, wherein the PFA resin ranges from 1 to 25% by weight relative to a total weight of the PFA material, and the polysiloxane resin dispersion liquid ranges from 1 to 30% by weight relative to a total weight of the PFA material.
    Type: Grant
    Filed: November 13, 2019
    Date of Patent: June 28, 2022
    Assignee: TCL China Star Optoelectronics Technology Co., Ltd.
    Inventor: Xia Zhang
  • Aqueous dispersion comprising a polymer-inorganic particles composite and method for preparing the same
    Patent number: 11370870
    Abstract: The present disclosure refers to an aqueous dispersion comprising a polymer-inorganic particles composite and the method for preparing the same, wherein the polymer has ionic hydrophilic groups and hydrophobic long chain hydrocarbyl groups, and the polymer is covalently linked to said inorganic particles. The present disclosure also refers to powdered fillers obtained by drying the aqueous dispersion. The present disclosure further refers to a waterborne coating composition comprising the aqueous dispersion or the powdered fillers, as well as a coated article.
    Type: Grant
    Filed: July 9, 2018
    Date of Patent: June 28, 2022
    Assignee: Guangdong Huarun Paints Co., Ltd.
    Inventors: Weihua Kai, Gang Duan, Xi Zhao, Shigang Fan
  • Infrared fluorescent coatings
    Patent number: 11370925
    Abstract: A coating composition includes: (i) a film-forming resin; (ii) an infrared reflective pigment; and (iii) an infrared fluorescent pigment or dye different from the infrared reflective pigment. A multi-layer coating including the coating composition, and a substrate at least partially coated with the coating composition is also disclosed. A method of detecting an article at least partially coated with the coating composition is also disclosed.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: June 28, 2022
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Michael A. Zalich, Paul H. Berdahl, Stuart D. Hellring, William H. Retsch, Jr.
  • Process for producing laminate, and laminate
    Patent number: 11365299
    Abstract: To provide a laminate excellent in alkali resistance and interlaminar strength at high temperature, and a process for producing the laminate. A process for producing a laminate, comprising producing a non-crosslinked laminate having a layer of a first composition containing a copolymer having fluorine atoms and a layer of a second composition containing a non-fluorinated elastic polymer, and crosslinking the first composition and the second composition to produce a laminate having a first layer formed of a crosslinked product of the first composition and a second layer formed of a crosslinked product of the second composition, wherein when the first composition and the second composition contains a common crosslinking aid, the absolute value of the crosslinking rate difference between the first composition and the second composition is at most 0.30.
    Type: Grant
    Filed: March 18, 2020
    Date of Patent: June 21, 2022
    Assignee: AGC Inc.
    Inventor: Keisuke Yagi
  • Surface treatment agent, surface treatment method, and area selective deposition method
    Patent number: 11358976
    Abstract: A surface treatment agent including a compound represented by the following general formula (P-1) and an acid. In the formula, R1 represents a linear or branched alkyl group having 8 or more carbon atoms, a linear or branched fluorinated alkyl group having 8 or more carbon atoms, or an aromatic hydrocarbon group; R2 and R3 each independently represents a hydrogen atom, a linear or branched alkyl group having 8 or more carbon atoms, a linear or branched fluorinated alkyl group having 8 or more carbon atoms, or an aromatic hydrocarbon group R1—P(?O)(OR2)(OR3)??(P-1).
    Type: Grant
    Filed: July 13, 2020
    Date of Patent: June 14, 2022
    Assignee: Tokyo Ohka Kogyo Co., Ltd.
    Inventors: Kenji Seki, Jun Iioka, Takumi Namiki
  • Structure comprising low-resilience elastic member and high-resilience elastic member
    Patent number: 11359087
    Abstract: A structure comprising: a low-resilience elastic member 1 made of a thermoplastic elastomer (X); and a high-resilience elastic member 2 made of a thermoplastic elastomer (Y), wherein the thermoplastic elastomers (X) and (Y) are made of a resin composition including structural units derived from a vinyl aromatic compound and a conjugated diene compound, a softener, and a polyolefin resin.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: June 14, 2022
    Assignee: KURARAY PLASTICS CO., LTD.
    Inventors: Yoshinori Nakamura, Teruo Kitamura, Yukio Nosaka
  • Release-paper base paper and method for producing same, and release paper
    Patent number: 11352751
    Abstract: Release paper base paper, includes: a substrate; and a coating agent containing a polyvinyl alcohol (A) and a compound (B), the substrate coated with the coating agent, wherein the compound (B) is unsaturated carboxylic acid or a derivative thereof having a pKa of less than 4.00, and 0.1 part by mass or more and 20 parts by mass or less of the compound (B) is contained based on 100 parts by mass of the polyvinyl alcohol (A). The release paper base paper of the present invention is excellent in sealing properties for silicone and waterproofness. The release paper base paper of the present invention is also capable of accelerating curing of silicone in a release layer.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: June 7, 2022
    Assignee: KURARAY CO., LTD.
    Inventors: Keisuke Morikawa, Taeko Kaharu
  • Synthesis of re-pulpable temporary wet strength polymer for tissue application
    Patent number: 11345807
    Abstract: A grafted polyvinyl alcohol polymer has a balance between hydrophilicity and hydrophobicity. The grafted polyvinyl alcohol polymer has a chemical functionality that allows for adsorption onto the pulp fibers, polymer film formation upon drying, repelling water upon wetting, polymer film swelling and breaking for prolonged wetting by water. When incorporated into paper products, the polymer can provide a paper having improved wet strength, temporary water repellency, and/or is dispersible in aqueous solutions.
    Type: Grant
    Filed: October 30, 2019
    Date of Patent: May 31, 2022
    Assignee: BUCKMAN LABORATORIES INTERNATIONAL, INC.
    Inventors: Ahmed Moustafa, Daniel Glover
  • Inflatable stopper
    Patent number: 11345796
    Abstract: The invention relates to a non-crosslinked natural rubber latex composition for an inflatable stopper comprising a homogeneous mixture of: a) natural rubber latex; b) a surfactant; c) an amine based chemical antiozonant; d) possibly ammonia and preferably e) single or double wall electrically conductive nanotubes. The invention furthermore relates to an ozone resistant inflatable stopper comprising non-crosslinked natural rubber latex and fiber reinforcement, the rubber having an ozone resistance according to ISO 1431/1 at 50 pphm concentration ozone at 23±2° C., for the time frame of 48 hours, atmospheric humidity of 55% and strain static exposure of 20% and preferably a surface resistivity lower than 100 G? according to DIN EN 60079-32-2 and DVGW G 5621-3 (VP) measured at 1000 V and a maximum relative humidity of 30%.
    Type: Grant
    Filed: April 30, 2020
    Date of Patent: May 31, 2022
    Assignee: J. VAN BEUGEN BEHEER B.V.
    Inventors: Enver Coric, Leonard Van Beugen
  • Crosslinking agent, polymer composition containing crosslinking agent, and crosslinked product of same
    Patent number: 11339271
    Abstract: A crosslinking agent which is based on an aluminate complex salt of a hydroxyl group-containing organic compound, which crosslinks a carboxy group and a nitrile group. When the crosslinking agent is added to a carboxy group-denatured NBR latex, gloves having flexibility and a strength comparable to those of natural rubber gloves can be manufactured. Furthermore, the excellent creep resistance is a big characteristic. Moreover, unlike normal sulfur vulcanization gloves, the gloves do not contain sulfur and a vulcanization accelerator, and do not necessarily require addition of zinc oxide.
    Type: Grant
    Filed: October 26, 2018
    Date of Patent: May 24, 2022
    Assignee: YUGENKAISHA FOUR ROAD RESEARCH
    Inventor: Kazuo Koide
  • Thermoplastic resin composition and laminate using the same
    Patent number: 11339283
    Abstract: There are provided a thermoplastic resin composition capable of bonding a cyclic polyolefin-based polymer and an ethylene-vinyl alcohol copolymer with sufficient strength and to provide a laminate using the same.
    Type: Grant
    Filed: August 25, 2017
    Date of Patent: May 24, 2022
    Assignee: RIKEN TECHNOS CORPORATION
    Inventor: Ryota Nakanishi
  • Rubber composition and crosslinked rubber
    Patent number: 11332610
    Abstract: A rubber composition that contains 0.1 to 50 parts by weight of an organic peroxide with respect to 100 parts by weight of a cyclopentene ring-opening polymer.
    Type: Grant
    Filed: March 16, 2018
    Date of Patent: May 17, 2022
    Assignee: ZEON CORPORATION
    Inventors: Shingo Okuno, Yasuo Tsunogae
  • Anionic polymerization of alpha-methylstyrene/styrene alternating copolymer
    Patent number: 11332560
    Abstract: The present invention is directed to a copolymer of styrene and ?-methylstyrene comprising an alternating sequence of styrene and ?-methylstyrene residues, and a method to make the copolymer.
    Type: Grant
    Filed: May 13, 2020
    Date of Patent: May 17, 2022
    Assignees: The Goodyear Tire & Rubber Company, Luxembourg Institute of Science and Technology
    Inventors: Marc Weydert, Laurent Albert Robert Poorters, Pierre Verge, Arnaud Wolf, Reiner Dieden