Patents Examined by Frances Tischler
  • Polyester pressure-sensitive adhesive composition, polyester pressure-sensitive adhesive, pressure-sensitive adhesive sheet and optical member with pressure-sensitive adhesive layer
    Patent number: 11466179
    Abstract: A polyester pressure-sensitive adhesive composition is provided including a polyester resin having a predetermined amount of a structural unit derived from a hydrogenated polybutadiene structure-containing compound, or a polyester resin having a structural unit derived from a hydrogenated polybutadiene structure-containing compound and a predetermined amount of a structural unit derived from an aromatic ring structure-containing compound. The polyester pressure-sensitive adhesive composition has superior adhesion to a polyolefin base material and is highly transparency.
    Type: Grant
    Filed: March 17, 2020
    Date of Patent: October 11, 2022
    Assignee: MITSUBISHI CHEMICAL CORPORATION
    Inventor: Kento Sakamoto
  • Process for polymerizing ?-butyrolactone
    Patent number: 11459423
    Abstract: A process for polymerizing ?-butyrolactone that includes contacting racemic ?-butyrolactone or an enantiomer thereof with a catalyst/initiator system which includes a rare earth metal, a chiral ligand, at least one nucleophilic ligand, optionally at least one solvent ligand, and optionally an alkali based co-catalyst. The chiral ligand is an enantiomer of a unit of formula I Each Rz independently is substituted or unsubstituted linear C1-C20 alkyl, or substituted or unsubstituted branched, or cyclic C3-C20 alkyl, substituted or unsubstituted C6-C20 aryl, substituted or unsubstituted C5-C20 heteroaryl, or halogen. Each Ra independently is H, Me+, (MeZ)+, wherein Z is a charge equalizing anion, or wherein two Ra together are alkaline earth metal, wherein Me+ is alkali metal or alkaline earth metal.
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: October 4, 2022
    Assignee: Technische Universität München
    Inventors: Friederike Adams, Bernhard Rieger
  • Polyester-polycarbonate copolymer and method for producing same
    Patent number: 11453737
    Abstract: Polycarbonate block copolymers are provided, which have: (A) a polyester block of chemical formula 1; and (B) a polycarbonate block derived from a dihydric phenol of chemical formula 3 compound and phosgene. The copolymers may be prepared by (1) polymerizing ester oligomers to form a compound of chemical formula 1; and (2) copolymerizing the ester oligomer obtained in (1) with a polycarbonate oligomer prepared from a dihydric phenol compound of chemical formula 3 and phosgene, in the presence of a polymerization catalyst. The block copolymer may have a viscosity average molecular weight (Mv) of 10,000 to 200,000.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: September 27, 2022
    Assignee: SAMYANG CORPORATION
    Inventors: Kyung Moo Shin, Jin Sik Choi, Young Do Kwon
  • Recycling of polymer materials
    Patent number: 11447617
    Abstract: A process for recycling thermoplastic polymer material to produce polymer pre-form, the process comprising the steps of pre-treating a polymer material for example by separating, sorting, cleaning and/or shaping; shredding the pre-treated polymer to produce polymer flakes; and processing the polymer material to produce a pre-form, characterised in that prior to the step (iii) of producing the pre-form, the polymer flakes are compacted to form pellets.
    Type: Grant
    Filed: November 9, 2020
    Date of Patent: September 20, 2022
    Assignee: LOGOPLASTE INNOVATION LAB LDA
    Inventor: Vitor Vila Verde
  • Polyester compositions which comprise tetramethylcyclobutanediol and ethylene glycol for calendering
    Patent number: 11447601
    Abstract: Calendered films or sheets obtained from a composition comprising at least one polyester which has the L* color value of greater than 90 and comprises terephthalic acid residues, optional aromatic and/or aliphatic dicarboxylic acid residues having up to 20 carbon atoms; glycol component comprising 2,2,4,4-tetramethyl-1,3-cyclobutanediol residues and ethylene glycol residues; a catalyst/stabilizer component which comprises titanium atoms, manganese atoms, phosphorous atoms; fillers; release additives and does not comprises tin atoms. Calendered films or sheets can be used in a wide range of applications including packaging, pool liners, graphic arts, transaction cards, security cards and others.
    Type: Grant
    Filed: August 17, 2017
    Date of Patent: September 20, 2022
    Assignee: Eastman Chemical Company
    Inventors: Marc Alan Strand, Robert Erik Young, James Thomas Goetz, Douglas Weldon Carico, Jr.
  • Two part sole structures and uses thereof
    Patent number: 11439198
    Abstract: Two part sole structures are provided having a first foam component containing a polyolefin resin with a polyurethane resin component adhered to a surface of the first foam component. For example, in some aspects, a sole structure or a portion thereof is provided having a first sole component containing a foam composition and a second sole component adhered to a surface of the first sole component, where the second sole component includes a polyurethane resin. The second sole component is in some aspects printed or extruded onto the surface of the foam. In particular, midsoles including the foams and having an outsole component on the ground facing portion are provided for use in an article of footwear. Methods of making the sole structures are provided, as well as methods of making an article of footwear including one of the sole structures.
    Type: Grant
    Filed: June 3, 2019
    Date of Patent: September 13, 2022
    Assignee: NIKE, INC.
    Inventors: Sami M. Fakhouri, Askim Senyurt
  • Graphene oxide janus nanosheets relative permeability modifier (RPM) for reducing subterranean formation water permeability in carbonate formations
    Patent number: 11434411
    Abstract: A graphene oxide Janus nanosheets relative permeability modifier (RPM) for carbonate formations. The graphene oxide Janus nanosheets RPM may be used to treat a water and hydrocarbon producing carbonate formation to reduce water permeability in the formation and increase the production of hydrocarbons. The graphene oxide Janus nanosheet RPM includes a first side having negatively charged functional groups and a second side having alkyl groups. The alkyl groups may include C8 to C30 alkyls. The negatively charged functional groups may include carboxyl groups, epoxy groups, and hydroxyl groups. Methods of reducing water permeability of a carbonate formation using the graphene oxide Janus nanosheets RPM and methods of manufacturing the graphene oxide Janus nanosheets RPM are also provided.
    Type: Grant
    Filed: June 17, 2020
    Date of Patent: September 6, 2022
    Assignee: Saudi Arabian Oil Company
    Inventors: Jin Huang, Feng Liang, Wengang Li
  • Method of designing compressible particles having buoyancy in a confined volume
    Patent number: 11434406
    Abstract: A method of designing compressible particles for a fluid mixture. The compressible particles are intended to be used for attenuating pressure within a confined volume such as a trapped annulus. Preferably, the compressible particles reside buoyantly within an aqueous fluid, forming a fluid mixture. Each of the compressible particles is fabricated to collapse in response to fluid pressure within the confined volume, and comprises carbon. The particles may each have a porosity of between 5% and 40%, and a compressibility of between 10% and 30%, at 10,000 psi. The particles are tuned to have a buoyancy that is lower than the carrier fluid while still having resiliency.
    Type: Grant
    Filed: November 12, 2019
    Date of Patent: September 6, 2022
    Assignee: ExxonMobil Upstream Research Company
    Inventors: Ward E. Narhi, Sandeep A. Kibey, David A. Stiles, Michael R. Awe, Adam W. Aylor
  • Copolyesters for use in low shear melt applications
    Patent number: 11427675
    Abstract: A method of manufacturing a molded article by a low shear manufacturing process that includes: placing a solid polyester in a mold having mold surfaces; heating said polyester until it becomes molten; dispersing said molten polyester over said mold surfaces; solidifying said molten polyester to form a solid molded article; and removing said molded article from said mold; where the polyester is obtained by polymerization of dimethylcyclohexane dicarboxylic acid, cyclohexane dimethanol, polytetramethylene ether glycol and branching agent and has a steep melting curve evidenced by a puddling curve slope of ?2 to ?10.
    Type: Grant
    Filed: November 21, 2019
    Date of Patent: August 30, 2022
    Assignee: Eastman Chemical Company
    Inventors: Marc Alan Strand, Laura Bauerle Weaver, Robert Erik Young
  • Decontamination of sulfur contaminants from hydrocarbons
    Patent number: 11427769
    Abstract: A method for removing hydrogen sulfide from a hydrocarbon. The method comprises introducing methylmorpholine-N-oxide to a vessel, wherein the vessel comprises the hydrocarbon, and wherein the hydrocarbon comprises hydrogen sulfide; and treating the hydrocarbon by allowing the methylmorpholine-N-oxide to react with the hydrogen sulfide.
    Type: Grant
    Filed: August 4, 2020
    Date of Patent: August 30, 2022
    Assignee: United Laboratories International, LLC
    Inventor: Stephen D. Matza
  • Highly heat-resistant polycarbonate ester and preparation method therefor
    Patent number: 11421076
    Abstract: A heat-resistant, bio-based polycarbonate ester prepared by melt polycondensation of 1,4:3,6-dianhydrohexitol and a carbonate, 1,4-cyclohexanedicarboxylate, or a terephthalate is disclosed. The heat-resistant, bio-based polycarbonate ester includes a repeat unit 1 of Formula 1, a repeat unit 2 of Formula 2, and a repeat unit 3 of Formula 3: The polycarbonate ester has excellent heat resistance, transparency, and processability. A method of producing the polycarbonate includes a step of melt polycondensation of 1,4:3,6-dianhydrohexitol and a carbonate, 1,4-cyclohexanedicarboxylate, or a terephthalate.
    Type: Grant
    Filed: September 6, 2018
    Date of Patent: August 23, 2022
    Assignee: SK CHEMICALS CO., LTD.
    Inventor: Kwang Sei Oh
  • Polyester resin for toners, method for producing same, toner and method for producing toner
    Patent number: 11415903
    Abstract: A polyester resin, including: (a) a constitutional unit derived from at least one tetravalent carboxylic acid selected from Compounds (A) and (B); a constitutional unit derived from a bisphenol A-alkylene oxide adduct; and a constitutional unit derived from an aliphatic alcohol having a boiling point of lower than or equal to 290° C.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: August 16, 2022
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Takahiro Mori, Yoko Tamura, Asako Kaneko
  • Branched acid emulsifier compositions and methods of use
    Patent number: 11414586
    Abstract: Compositions may contain an oleaginous base fluid, and a branched amidoamine surfactant prepared from the reaction of an alkylene amine or an oligoalkylene amine and a branched acid having a C4 to C24 primary hydrocarbon chain, and having one or more C1 to C24 branches. Methods may include emplacing a wellbore fluid into a wellbore, wherein the wellbore fluid contains an oleaginous base fluid; and a branched amidoamine surfactant prepared from the reaction of an alkylene amine or an oligoalkylene amine and a branched acid having a C4 to C24 primary hydrocarbon chain, and having one or more C1 to C24 branches.
    Type: Grant
    Filed: January 29, 2020
    Date of Patent: August 16, 2022
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Yiyan Chen, Dimitri M. Khramov
  • Weighted drilling fluid containing organophilic phyllosilicate
    Patent number: 11414585
    Abstract: A drilling fluid formulation is provided, which includes a fluid phase, an organophilic phyllosilicate as an anti-sagging additive, and a weighting agent (e.g. barite). The organophilic phyllosilicate contains an ion-exchange reaction product of a clay material (e.g. smectite) and quaternary ammonium cations. The organophilic phyllosilicate is effective in preventing barite sagging as demonstrated by low sag factor when drilling at elevated temperatures. Rheology properties of the drilling fluid including gel strength, yield point, plastic viscosity, and storage modulus are also specified.
    Type: Grant
    Filed: August 20, 2019
    Date of Patent: August 16, 2022
    Assignee: King Fahd University of Petroleum and Minerals
    Inventor: Salaheldin Elkatatny
  • Processes for recycling polystyrene waste
    Patent number: 11407878
    Abstract: There are provided recycled polystyrene polymers having a melt flow index of less than about 25 g/10 min. There are provided processes for recycling polystyrene waste. The processes can comprise dissolving said polystyrene waste in p-cymene under conditions to obtain a polystyrene/p-cymene mixture, adding the polystyrene/p-cymene mixture to a hydrocarbon polystyrene non-solvent under conditions to obtain precipitated polystyrene and washing the precipitated polystyrene with additional portions of hydrocarbon polystyrene non-solvent under conditions to obtain twice-washed polystyrene. The twice-washed polystyrene can optionally be dried and formed into polystyrene pellets. There is also provided recycled polystyrene obtained from such processes for recycling polystyrene waste.
    Type: Grant
    Filed: June 21, 2021
    Date of Patent: August 9, 2022
    Assignee: Polystyvert Inc.
    Inventor: Roland Côté
  • Polyester resin having excellent heat resistance and solubility in solvents, and coating composition containing same
    Patent number: 11401372
    Abstract: A polyester resin and a coating composition containing the polyester resin are disclosed. The polyester resin includes a repeating unit obtained by copolymerizing (a) a divalent acid component and (b) a diol component containing (b-1) an isosorbide and (b-2) a cycloaliphatic diol, and has excellent heat resistance and solubility in a solvent. The cycloaliphatic diol may be one or more diol derivatives of a tricycle C7-14 alkane. A coating formed from a coating composition containing the polyester shows excellent heat resistance, hardness, chemical resistance, pollution resistance, and hydrolysis resistance.
    Type: Grant
    Filed: January 5, 2017
    Date of Patent: August 2, 2022
    Assignee: SK CHEMICALS CO., LTD.
    Inventors: Jong-ki Sim, Soon-Ki Kim
  • Fluid mixture containing compressible particles
    Patent number: 11401459
    Abstract: A fluid mixture for attenuating pressure within a confined volume. The fluid mixture comprises an aqueous carrier fluid. The fluid mixture further comprises a plurality of compressible particles dispersed in the carrier fluid. Each of the compressible particles is fabricated to collapse in response to fluid pressure within a confined volume. Each of the compressible particles has a density that is less than a density of the carrier fluid and has a compressibility of between 10% and 30%, up to 10,000 psi. A column of fluid within a trapped annulus of a wellbore is also presented, wherein the column of fluid has a plurality of compressible particles dispersed in a carrier fluid.
    Type: Grant
    Filed: November 12, 2019
    Date of Patent: August 2, 2022
    Assignee: ExxonMobil Upstream Research Company
    Inventors: Ward E. Narhi, Sandeep A. Kibey
  • Copolymerized saturated polyester resin and coating composition containing same
    Patent number: 11401371
    Abstract: A copolymerized saturated polyester resin is formed by polycondensation of an acid component and an alcohol component. The acid component contains (a-1) 90 to 99% by mole of an aromatic dicarboxylic acid or a C1-2 alkyl ester thereof and (a-2) 0.5 to 2% by mole of a trifunctional or higher functional carboxylic acid or an anhydride thereof. The alcohol component contains (b-1) 45 to 80% by mole of an alicyclic polyhydric alcohol and (b-2) 20 to 55% by mole of an aliphatic polyhydric alcohol having a C1-3 alkyl side chain. A coating composition containing the copolymerized saturated polyester resin shows excellent corrosion resistance and chemical resistance. A coating film formed from the coating composition shows excellent processability and resin solubility, and is useful for coating a can and pre-coated metal.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: August 2, 2022
    Assignee: SK CHEMICALS CO., LTD.
    Inventors: Hyung-Gon Kim, Jong-Ki Sim, Soon-Ki Kim
  • Reversible crosslinked polymers
    Patent number: 11390710
    Abstract: A reversibly crosslinked polymer and methods for producing and using the obtained polymer are disclosed. In particular, reversibly crosslinked polymers of the invention comprise polyesters formed by the reaction of mercaptosuccinic acid and a diol to form a monomeric unit that includes thiol groups as crosslinking moieties. Oxidation of the thiol groups affords crosslinked polymer comprising a disulfide linkage that, upon reduction of the disulfide linkage, provides a non-crosslinked polymer. In some embodiments, polymers of the invention are degradable and are biocompatible.
    Type: Grant
    Filed: April 29, 2013
    Date of Patent: July 19, 2022
    Assignee: WiSys Technology Foundation, Inc.
    Inventor: John P. Droske
  • Vent cleaning of rubber molds
    Patent number: 11377524
    Abstract: Vents and micro-structures of rubber molds may become clogged with rubber that is difficult to remove. These vents and micro-structures can be cleaned of rubber, even if heat aged, by subjecting the mold to high temperatures in the presence of a solvent to devulcanize any rubber present. If the rubber used with the mold being cleaned includes carbon black, a solvent may be used to dissolve the devulcanized polymer, leaving the carbon black which can be removed by water jets or other cleaning means.
    Type: Grant
    Filed: July 30, 2018
    Date of Patent: July 5, 2022
    Assignee: Rubreco, Inc.
    Inventors: Brian H. Harrison, Hurdon A. Hooper, Mathew Ness