Abstract: An article is provided. The article includes an acrylate layer; a substrate overlaying the acrylate layer; and an adhesive layer between the acrylate layer and the substrate, wherein the adhesive layer includes germanium; wherein a release value between the acrylate layer and the adhesive layer is more than 200 g/inch.
Type:
Grant
Filed:
October 29, 2018
Date of Patent:
January 18, 2022
Assignee:
3M Innovative Properties Company
Inventors:
Robert R. Owings, Kevin W. Gotrik, Christopher A. Merton
Abstract: The present invention relates to a method for identifying the unit causing a raw water leak in a condenser of a thermal power plant consisting of n units.
Abstract: Compounds derived from biomass, e.g., cellulose and lignins, methods of forming such compounds and polymers and products formed using such compounds.
Type:
Grant
Filed:
December 20, 2019
Date of Patent:
January 11, 2022
Assignee:
NDSU RESEARCH FOUNDATION
Inventors:
Mukund P. Sibi, Selvakumar Sermadurai, Nicolas Zimmermann, Eric Serum, Gaoyuan Ma, Ramkumar Moorthy, Krystal Kalliokoski
Abstract: A polymerization initiator composition includes isomers of the polymerization initiator, thereby preventing instability and inertness of the polymerization initiator and physical property degradation of the SSBR, minimizing by-products and unreacted materials, and remarkably improving a conversion ratio. In addition, when the polymerization initiator composition according to the present invention is used, there is no need to add a polar additive separately upon polymer polymerization, since the polar additive is already added at the time of preparing the polymerization initiator. Further, the polymer initiator composition has high polarity so that the hydrophobic SSBR and the hydrophilic silica can be effectively dispersed.
Type:
Grant
Filed:
December 27, 2017
Date of Patent:
January 4, 2022
Inventors:
Jae Hoon Choe, Jong Young Choi, Dong Cheol Choe, Hyun Ju Kim, Hyeon Hui Kim, Jung Yong Lee, Chan Joong Kim, Myung Han Lee, Hye Jin Han
Abstract: The anion exchange membranes exhibit enhanced chemical stability and ion conductivity when compared with traditional styrene-based alkaline anion exchange membranes. A copolymer backbone is polymerized from a reaction medium that includes a diphenylalkylene and an alkadiene. The copolymer includes a plurality of pendant phenyl groups. The diphenyl groups on the polymer backbone are functionalized with one or more haloalkylated precursor substrates. The terminal halide from the precursor substrate can then be substituted with a desired ionic group. The diphenylethylene-based alkaline anion exchange membranes lack the ?-hydrogens sharing tertiary carbons with phenyl groups from polystyrene or styrene-based precursor polymers, resulting in higher chemical stability. The ionic groups are also apart from each other by about 3 to 6 carbons in the polymer backbone, enhancing ion conductivity. These membrane are advantageous for use in fuel cells, electrolyzers employing hydrogen, ion separations, etc.
Type:
Grant
Filed:
October 22, 2019
Date of Patent:
December 28, 2021
Assignee:
Rensselaer Polytechnic Institute
Inventors:
Sangwoo Lee, Chulsung Bae, Musashi J. Briem, Sungmin Park
Abstract: The invention relates to a novel synthesis process in order to produce meltable PAN copolymers with increased thermal stability. The PAN copolymers produced using the method according to the invention surprisingly exhibit improved thermal and mechanical properties compared to PAN copolymers produced using methods known from the prior art. The invention additionally relates to corresponding PAN copolymers and to molded bodies produced therefrom or to a method for producing such molded bodies, in particular melt-spun mono- or mufti-filaments.
Type:
Grant
Filed:
October 27, 2016
Date of Patent:
December 21, 2021
Assignee:
Fraunhofer-Gesellschaft zur förderung der angewandten Forschung e.V.
Abstract: An anti-fouling coating comprising a polymeric compound, wherein a backbone of the polymeric compound is covalently bonded to a quorum sensing inhibitor, and wherein the anti-fouling coating has substantially no bactericidal activity, the quorum sensing inhibitor is substantially non-leaching from the anti-fouling coating, or both.
Type:
Grant
Filed:
August 20, 2019
Date of Patent:
December 21, 2021
Assignee:
The Johns Hopkins University
Inventors:
Christopher M. Hoffman, Jr., Adam W. Freeman, Konstantinos Gerasopoulos, James K. Johnson, Felix C. Sage, Spencer A. Langevin, Reid E. Messersmith
Abstract: Embodiments of a scratch-resistant and optically transparent material comprising silicon, aluminum, nitrogen, and optionally oxygen are disclosed. In one or more embodiments, the material exhibits an extinction coefficient (k) at a wavelength of 400 nm of less than about 1×10?3, and an average transmittance of about 80% or greater, over an optical wavelength regime in the range from about 380 nm to about 780 nm, as measured through the material having a thickness of about 0.4 micrometer. In one or more embodiments, the material comprises an intrinsic maximum hardness of about 12 GPa or greater as measured on a major surface of the material having a thickness of about 400 by a Berkovich Indenter Hardness Test along an indentation depth of about 100 nm or greater, low compressive stress and low roughness (Ra). Articles and devices incorporating the material are also disclosed.
Abstract: A neutral layer composition, which is capable of forming a neutral layer that can effectively control orientation characteristics of various block copolymers is provided.
Type:
Grant
Filed:
July 16, 2018
Date of Patent:
December 7, 2021
Inventors:
Eun Young Choi, No Jin Park, Je Gwon Lee, Yoon Hyung Hur, Sung Soo Yoon
Abstract: Polymer-based electrolyte materials that may be used as proton exchange membranes in proton exchange membrane fuel cells are described. The disclosed polymer electrolyte materials can be generally defined by a general 1,3-dicarbonyl repeat unit that may include various side chain and main chain constituents changing the acidity of the C—H proton(s) located between the carbonyl groups. Accordingly, by varying such side-chain and main-chain constituents, the proton-conduction properties the disclosed proton exchange membranes can be manipulated, and methods of producing the same. Methods of producing such polymer electrolyte materials are also disclosed.
Type:
Grant
Filed:
August 28, 2019
Date of Patent:
November 30, 2021
Assignee:
Robert Bosch GmbH
Inventors:
Natasha Teran, Malar Azagarsamy, Hany Eitouni
Abstract: The present invention relates to a composition comprising an aqueous dispersion of multistage polymer particles comprising a first and a second phase, wherein the first phase comprises structural units of a carboxylic acid monomer or a salt thereof, and a nonionic ethylenically unsaturated monomer; and wherein the second phase comprises a first and second polymer, wherein the first phase or the second phase first polymer or both comprise structural units of a high Tg hydrophobic monomer; and wherein the second phase second polymer comprises at least 80 percent structural units of styrene. The high Tg hydrophobic monomer is defined as being one or more of the following monomers: cyclohexyl methacrylate, isobornyl methacrylate, 4-t-butyl methacrylate, t-butylstyrene, or n-butyl methacrylate. The multistage polymer particles are useful as opaque polymers, which are used in pigmented coating formulations to reduce the load of TiO2.
Type:
Grant
Filed:
August 30, 2019
Date of Patent:
November 30, 2021
Assignee:
Rohm and Haas Company
Inventors:
James K. Bardman, David G. Kelly, Michael W. Leonard
Abstract: The present invention provides a methacrylic resin composition for non-contact hot plate welding comprising a methacrylic resin comprising 80 to 99.9% by mass of a methacrylic acid ester monomer unit and 0.1 to 20% by mass of a unit of at least one additional vinyl monomer copolymerizable with the methacrylic acid ester monomer, wherein the methacrylic resin composition has a melt flow rate (MFR) of 2.5 g/10 min or lower at 230° C. at a load of 3.8 kg.
Abstract: A novel process for making PBI films starting from gel PBI membranes polymerized and casted in the PPA process wherein acid-imbibed gel PBIs are neutralized in a series of water baths and undergo controlled drying in association with a substrate material, yielding a PBI film without the use of organic solvents.
Type:
Grant
Filed:
September 13, 2019
Date of Patent:
November 23, 2021
Assignee:
University of South Carolina
Inventors:
Laura A. Murdock, Fei Huang, Lihui Wang, Brian C. Benicewicz
Abstract: A process and apparatus for enhanced boron removal from water. The process includes the steps of reacting potassium carbonate or ammonium carbonate with calcium borate in a stream of feed water to form a stream having calcium carbonate and potassium borate salt or ammonium borate salt. The stream having calcium carbonate and potassium borate or ammonium borate is introduced to an ion exchange vessel containing resin having methylglucamine in salt form with potassium carbonate or sodium carbonate to form borate and potassium sulfate or sodium sulfate. The resin in the ion exchange vessel is periodically regenerated.
Abstract: Provided are an anion exchange resin being capable of producing an electrolyte membrane, a binder for forming an electrode catalyst layer and a battery electrode catalyst layer, which have improved electrical properties and chemical properties. For example, used is an anion exchange resin which has a hydrophobic unit being composed of bisphenol AF residues repeated via carbon-carbon bond and a hydrophilic unit being composed of hydrophilic groups repeated via carbon-carbon bond, in which the hydrophilic group is formed by connecting an anion exchange group to a fluorene backbone via a divalent saturated hydrocarbon group, and in which the hydrophobic unit and the hydrophilic unit are connected via carbon-carbon bond.
Type:
Grant
Filed:
November 20, 2019
Date of Patent:
November 16, 2021
Assignees:
University Of Yamanashi, Takahata Precision Co., Ltd., DAIHATSU MOTOR CO., LTD
Abstract: This invention relates to a hydrogenated hydrocarbon resin and a method of preparing the same, wherein the preparation process is simplified, material supply problems can be solved, and the hydrogenated hydrocarbon resin can be prepared using a catalyst, which is inexpensive, has a low odor and is easy to handle, thereby realizing a yield and a preparation process that enable real-world application thereof. The hydrogenated hydrocarbon resin prepared by the method of the invention has excellent compatibility and a low specific viscosity, and can thus be efficiently used as a tackifier or an adhesive in a variety of fields.
Type:
Grant
Filed:
March 30, 2020
Date of Patent:
November 9, 2021
Inventors:
Sang Hyun Lee, Jun Hyo Park, Joong Suk Lee, Min Sik Cho
Abstract: The present invention is directed to a film comprising a base film which has been coated on at least one side with a coating that enhances gas and/or moisture barrier properties, wherein the base film comprises a fiber material and at least 60% by weight of said fiber material is microfibrillated cellulose, and the thickness of the coating is from 0.05 to 20 ?m. The invention is also directed to products using said film. Such products are in particular packages suitable for sensitive objects that need to be packaged in a controlled or modified atmosphere. The film is also useful for other purposes, such as in the manufacture of balloons.
Type:
Grant
Filed:
April 26, 2017
Date of Patent:
November 2, 2021
Assignee:
Stora Enso OYJ
Inventors:
Kaj Backfolk, Isto Heiskanen, Esa Saukkonen, Jukka Kankkunen
Abstract: Provided are an anion exchange resin being capable of producing an electrolyte membrane and the like, which have improved chemical properties (durability). For example, used is an anion exchange resin comprising a hydrophobic unit being composed of a plurality of divalent hydrophobic groups repeated via carbon-carbon bond, the divalent hydrophobic group having a plurality of aromatic rings which are connected to each other via a divalent fluorine-containing group; and a hydrophilic unit being composed of a plurality of hydrophilic groups repeated via carbon-carbon bond, the hydrophilic groups being composed of a plurality of aromatic rings which are connected to each other via a divalent hydrocarbon group and/or carbon-carbon bond, and the hydrophilic groups containing an anion exchange group-containing group including a quaternary ammonium salt having a piperidine ring, and wherein the hydrophobic unit and the hydrophilic unit are connected via carbon-carbon bond.
Type:
Grant
Filed:
August 21, 2019
Date of Patent:
October 26, 2021
Assignees:
UNIVERSITY OF YAMANASHI, TAKAHATA PRECISION CO., LTD., DAIHATSU MOTOR CO., LTD
Abstract: A vinylidene fluoride resin film is produced by using a film composition containing at least a vinylidene fluoride resin and organic particles. The vinylidene fluoride resin film includes a plurality of protrusions on at least one surface thereof. Among the plurality of protrusions, the number of protrusions greater than 0.10 ?m in height from a flat surface at which the protrusions are not present is from 40 to 400, per 0.10 mm2 of the vinylidene fluoride resin film.
Abstract: The present disclosure provides an ion-exchange membrane that includes a supporting substrate impregnated with an ion-exchange material. The supporting substrate includes an imprinted non-woven layer, and the imprinting includes a plurality of deformations at a surface density of at least 16 per cm2. The supporting substrate may lack a reinforcing layer. In some examples, the supporting substrate may include only a single layer of the imprinted non-woven fabric.