Abstract: The present invention relates to a thermoplastic elastomer according to the formula [AB]n, wherein A represents a soft block and B represents a hard block. The present invention further relates to a process for the preparation of the thermoplastic elastomer. The thermoplastic material is in particular suited for biomaterial applications, for example for implants and tissue engineering applications and for purposes including scaffolding material applications, e.g. for tissue engineering purposes.
Type:
Grant
Filed:
June 19, 2015
Date of Patent:
February 11, 2020
Assignee:
SYMO-CHEM B.V.
Inventors:
Serge Hendrikus Mathijs Söntjens, Michel Henri Chrétien Joseph Van Houtem, Tristan Mes, Anton Willem Bosman, Henricus Marie Janssen
Abstract: A resin blend is provided including a blend of a benzoxazine resin and a phthalonitrile resin. The benzoxazine/phthalonitrile resin blends prior to cure have more favorable processing and curing properties compared to the phthalonitrile resins alone, enabling greater ease in manufacturing.
Type:
Grant
Filed:
December 5, 2016
Date of Patent:
February 11, 2020
Assignee:
3M Innovative Properties Company
Inventors:
Benjamin J. Anderson, Gregory P. Sorenson, Ilya Gorodisher
Abstract: The present invention is directed to polyisocyanates and polyurethanes derived therefrom. In various embodiments, the present invention provides polyisocyanates, methods of making the polyisocyanates from fused bicyclic alcohols, polyurethanes, and methods of making the polyurethanes from the polyisocyanates.
Type:
Grant
Filed:
June 26, 2018
Date of Patent:
February 4, 2020
Assignee:
Iowa State University Research Foundation, Inc.
Inventors:
Jason Shih-Hao Chen, Michael Richard Kessler, Michael Dennis Zenner
Abstract: A method for preparing a functionalized polymer, the method comprising the steps of preparing a reactive polymer and reacting the reactive polymer with a heterocyclic nitrile compound.
Type:
Grant
Filed:
July 18, 2018
Date of Patent:
February 4, 2020
Assignee:
Bridgestone Corporation
Inventors:
Steven Luo, Ryouji Tanaka, Kouichirou Tani
Abstract: Provided is a thermosetting resin composition containing a polyimide compound (A) having a structural unit derived from a maleimide compound (a1) having at least two N-substituted maleimide groups and a structural unit derived from a diamine compound (a2); a modified polybutadiene (B); and an inorganic filler (C).
Type:
Grant
Filed:
December 3, 2015
Date of Patent:
January 28, 2020
Assignee:
HITACHI CHEMICAL COMPANY, LTD.
Inventors:
Aya Kasahara, Tetsurou Irino, Hikari Murai
Abstract: The invention pertains to peroxide-curable fluoroelastomers for the oil and gas industry, including explosive decompression, and which can be easily processed to yield cured parts in standard machineries at reasonable throughput rates, said fluoroelastomers comprising: recurring units derived from vinylidene fluoride (VDF); recurring units derived from hexafluoropropylene (HFP); recurring units derived from at least one bis-olefin [bis-olefin (OF)] having general formula: wherein R1, R2, R3, R4, R5 and R6, equal or different from each other, are H, a halogen, or a C1-C5 optionally halogenated group, possibly comprising one or more oxygen group; Z is a linear or branched C1-C18 optionally halogenated alkylene or cycloalkylene radical, optionally containing oxygen atoms, or a (per)fluoropolyoxyalkylene radical; and iodine or bromine cure-sites; said fluoroelastomers further possessing a Mooney viscosity (ML) of at least 85 MU (1+10@121° C.), when measured according to ASTM D1646.
Abstract: The method prepares an aqueous pigment dispersion. The method includes the following steps: providing a silica liquid including a hydrophilic fumed silica, potassium hydroxide and ion exchanged water; providing a styrene-acrylic acid copolymer obtained by copolymerizing monomers including a styrene monomer at an amount of 50 to 90 mass %; providing an aqueous medium; mixing a pigment with the styrene-acrylic acid copolymer and the aqueous medium to prepare a first mixture; and subsequently mixing the first mixture with the silica liquid to prepare the aqueous pigment dispersion.
Abstract: [Problem] Provided is a method for producing an industrially advantageous hydrogenated polymer, whereby a high hydrogenation rate can be achieved by a small use amount therein at a level of not requiring a decalcification process of the catalyst. [Solution] A method for producing a hydrogenated polymer including hydrogenating, with a hydrogen molecule, a carbon-carbon double bond based on a conjugated diene structural unit of a polymer in which at least a part of a living polymer obtained by polymerizing a monomer containing one or more conjugated dienes using an organic alkali metal compound as a polymerization initiator is terminated by a hydrogen molecule, in the presence of a silane compound having at least one silyl hydride bond and an organic metal compound represented by the following general formula (I): wherein R1 to R10 are those as defined in the specification.
Abstract: Disclosed are polycationic polymers. The polycationic polymers can include a plurality of positively charged centers, each of which is formed by condensation of cyclic bis-electrophile (e.g., a 9-thia/aza/selenabicyclo[3.3.1]nonyl electrophile) with a nucleophile. The resulting polycationic polymers can efficiently bind nucleic acids. The polycations can also exhibit properties of cytotoxicity and DNA transfection with interesting structure-activity characteristics.
Type:
Grant
Filed:
May 31, 2017
Date of Patent:
December 24, 2019
Assignee:
Georgia Tech Research Corporation
Inventors:
M. G. Finn, Jennifer Marie Beveridge, Allison Frances Geoghan, Zhishuai Geng
Abstract: A (meth)acrylate resin material comprising a polymer (A1) having constituent units (a1) derived from a compound represented by formula (1) and constituent units (a2) derived from methyl methacrylate, and an acid (B) and/or a nucleating agent (C). In the formula, Ar represents an aryl group, and the aromatic ring in Ar is directly bonded to the ester end in formula (1).
Abstract: Catalyst compositions based on Ruthenium- or Osmium-based complex catalysts and specific co-catalysts are provided for selectively hydrogenating nitrile rubbers in the presence of such catalyst compositions.
Type:
Grant
Filed:
January 29, 2018
Date of Patent:
December 17, 2019
Assignee:
ARLANXEO DEUTSCHLAND GMBH
Inventors:
Werner Obrecht, Sarah David, Qingchun Liu, Zhenli Wei
Abstract: The present disclosure relates a method of preparing a rubbery polymer, a rubbery polymer, and a graft copolymer and thermoplastic resin composition including the rubbery polymer. In accordance with the present disclosure, a rubbery polymer, in which a large-diameter rubbery polymer and a small-diameter rubbery polymer are formed in a desired ratio by controlling the contents, addition time points, and types of a crosslinking agent, an emulsifier, and a molecular weight regulator when a conjugated diene monomer, the crosslinking agent, the molecular weight regulator, and the emulsifier are polymerized, and a graft copolymer and thermoplastic resin composition having excellent surface gloss and mechanical properties are provided.
Type:
Grant
Filed:
November 29, 2016
Date of Patent:
December 10, 2019
Assignee:
LG CHEM, LTD.
Inventors:
Jin Hyoung Lee, Young Min Kim, Su Jeong Han, Yoo Vin Kim, Young Hwan Jeong, Sun Haeng Chung, Jae Min Suk
Abstract: This invention relates to novel catalyst compositions based on Ruthenium- or Osmium-based complex catalysts of the Grubbs-Hoveyda, Grela or Zhan type and specific co-catalysts comprising at least one vinyl group, pref. ethyl vinyl ether, and to a process for selectively hydrogenating nitrile rubbers in the presence of such catalyst compositions, preferably with a preceding metathesis step using the same complex catalyst as in the hydrogenation step.
Type:
Grant
Filed:
January 10, 2018
Date of Patent:
December 10, 2019
Assignee:
ARLANXEO DEUTSCHLAND GMBH
Inventors:
Werner Obrecht, Sarah David, Qingchun Liu, Zhenli Wei
Abstract: Reactive compositions are provided, having biocidal and chemical decontamination/neutralization properties, comprising a hygroscopic polymer and an active, which are useful in a variety of commercial, healthcare and military applications and a wide variety of contaminants, including without limitation chemical and biological warfare agents. The reactive compositions are renewable or rechargeable after use by exposure to an additional application of the active and do not require removal, disposal or replacement of the originally applied composition. Methods for preparing and applying the reactive compositions are disclosed.
Type:
Grant
Filed:
June 15, 2018
Date of Patent:
December 10, 2019
Assignee:
AMERICAN STERILIZER COMPANY
Inventors:
Herbert J. Kaiser, Miranda C. Shaver, Timothy Lee Giddens
Abstract: Nanoparticles having a plurality of PVP chains covalently bonded to a surface of the nanoparticle are provided, along with their methods of formation and the RAFT agents for the polymerization of the PVP chains. RAFT agents are generally provided, along with their methods of formation and use. Methods are also generally provided for grafting a PVP polymer onto a nanoparticle. In one embodiment, the method includes: polymerizing a plurality of monomers in the presence of a RAFT agent to form a polymeric chain covalently bonded to the nanoparticle.
Abstract: The present invention relates to an aqueous composition with enhanced stability for hard surface applications containing at least one lipophilic compound and at least one copolymer, in which the at least one copolymer is a comb-type branched copolymer exhibiting an alternating sequence of monomeric units (a) having at least one hydrophilic group and monomeric units (b) having at least one lipophilic side chain. Moreover, a method for producing said composition as well as the use of the composition is concerned.
Abstract: VO2 and V2O5 nano- or micro-materials. The VO2 nano-materials and micro-materials have an M1 phase structure and oxygen stoichiometry that deviates 2% or less from theoretical stoichiometry. The VO2 nano-materials and micro-materials may doped with cation dopants and/or anion dopants. The VO2 and V2O5 nano- or micro-materials can be made by hydrothermal methods starting with V3O7.H2O nano- or micro-material. The VO2 and V2O5 nano- or micro-materials can be used as, for example, thermochromic window coatings.
Type:
Grant
Filed:
August 26, 2015
Date of Patent:
November 19, 2019
Assignee:
The Research Foundation for The State University of New York
Abstract: Molecularly imprinted polymers (MIPs) are materials exhibiting molecular recognition of a target molecule. MIPs are synthesized in the presence of an aflatoxin template, a mimic to the targeted molecule, used as an imprint that is further washed away with suitable solvent after completion of the polymerization process, leaving a cavity in the polymer of the same stereochemistry, functionality and morphology to the template. When the MIP encounters an aflatoxin, the molecule is bound in the cavity with a receptor-like affinity.
Type:
Grant
Filed:
January 12, 2018
Date of Patent:
November 12, 2019
Assignee:
Alltech, Inc.
Inventors:
Alexandros Yiannikouris, Thirupathi R. Yerramreddy, Joshua J. Martinez, Jeffrey R. Withers
Abstract: Provided is a modified hydrocarbon resin that provides a hot melt adhesive composition with low odor, excellent heat stability, and high adhesive properties. The modified hydrocarbon resin is obtained by hydrogenating a hydrocarbon resin comprising a plurality of specific monomeric unit in a specific range, and characterized in that: a degree of hydrogenation of the olefins, a degree of hydrogenation of the aromatic rings, a weight average molecular weight (Mw), a Z-average molecular weight (Mz), a ratio (Mz/Mw) of the Z-average molecular weight to the weight-average molecular weight, a Gardner color scale of a toluene solution of 50 mass %, and a difference between pre-hydrogenation and post-hydrogenation mixed aniline point (MMAP) are within the specific range.