Abstract: A composition includes particular amounts a poly(phenylene ether), a first polyamide, hydrogenated block copolymer of an alkenyl aromatic and a conjugated diene, pentaerythritol tetrastearate, and bisphenoxyethanol fluorene. The composition can be particularly well-suited for use in a reinforced thermoplastic composition including a reinforcing carbon filler.
Abstract: The present invention relates to a precursor material for an insulation composition, comprising: a crosslinkable graft polymer comprising a polyolefin component and a polyene component; and an antioxidant. The present invention also relates to an insulation composition obtained from the precursor material.
Type:
Grant
Filed:
August 14, 2018
Date of Patent:
October 24, 2023
Assignee:
SI Group, Inc.
Inventors:
Denis Louis Emile Labbe, Christopher John Rider, Warren J. Ebenezer, Jonathan Hill
Abstract: A composition comprising polypropylene having a high melt strength suitable for an injection stretch blow molding (ISBM) process is provided. Such a composition includes a polypropylene (PP) copolymer having a branched structure. The PP copolymer is a random copolymer derived from propylene and at least one comonomer selected from ethylene, any C4-C8 alpha-olefin, or any combinations thereof. The composition has a melt flow index in a range of from 8 g/10 minutes to 30 g/10 minutes. A resulting fabricated article, a method of making the composition, and a method of using the composition are also provided.
Type:
Grant
Filed:
November 21, 2019
Date of Patent:
October 17, 2023
Assignee:
BRASKEM AMERICA, INC.
Inventors:
Kevin Herrington, Kimberly Miller McLoughlin
Abstract: A polymer composition may include an ethylene vinyl acetate (EVA) polymer at an amount ranging from 10 to 90 phr; an elastomeric EVA composition at an amount ranging from 10 to 90 phr; a plasticizer at an amount ranging from 5 to 40 phr; a blowing agent in an amount ranging from 2 to 10 phr; and a peroxide in an amount ranging from 0.3 to 4 phr.
Abstract: A fluororesin including a vinylidene fluoride unit and a tetrafluoroethylene unit. The fluororesin has a gas chromatography-mass spectrometry total ion chromatogram including a peak which is assigned to a component having a molecular weight of 202 to 903 and which has a peak intensity of 1000 or lower. Also disclosed is a molded article formed from the fluororesin.
Abstract: The present invention provides a cushion partially or entirely composed of a foam, the foam composed of a polymer composition that includes a homopolymer or a copolymer including a constituent unit derived from farnesene.
Abstract: A propylene polymer composition comprising a propylene polymer and an ethylene-?-olefin copolymer (provided that the ethylene-?-olefin copolymer is not the propylene polymer), the propylene polymer composition satisfying requirement (I): Requirement (I) an absolute value of a difference between a die swell ratio at a shear rate of 24 sec?1 and a die swell ratio at a shear rate of 6,080 sec?1 is 0.29 or less. One embodiment of the present invention is a propylene polymer composition which additionally satisfies the requirement (II). Requirement (II): The ethylene triad chains (EEE) in an ortho-dichlorobenzene-insoluble fraction are 2.0 mol % or more.
Abstract: Green, fast and easy evaporating organic solvent for use as a lubricant in the processing of polytetrafluoroethylene (PTFE) and expanded polytetrafluoroethylene (ePTFE) products and processes of using the solvents to fabricate the products are disclosed herein. The products can be used in the field of bio- and medical applications, such as for use in vascular grafts, cardiovascular and soft tissue patches, facial implants, surgical sutures, and endovascular prosthesis, and for any products known in the aerospace, electronics, fabrics, filtration, industrial and sealant arts.
Type:
Grant
Filed:
April 25, 2022
Date of Patent:
October 10, 2023
Assignee:
Wisconsin Alumni Research Foundation
Inventors:
Lih-Sheng Turng, Yiyang Xu, Yu-Jyun Lin, Dong-Fang Wang
Abstract: A melt blended composition comprising, in weight percent (wt %) based upon the weight of the composition: (A) 55 to 94.99 wt % of a thermoplastic polymer, (B) 5 to 44.99 wt % of a moisture curable polymer, and (C) 0.01 to 5 wt % of a moisture condensation catalyst exhibits enhanced rheological and mechanical properties as compared to a composition alike in all aspects save for the presence of a moisture curable polymer.
Abstract: The compatibility between silica fillers and synthetic rubbers which are synthesized utilizing lanthanide-based catalyst systems, such as neodymium catalyst systems can be improved by terminating the polymerization with a vinyl silane terminating agent. In doing so the vinyl silane is allowed to react with the polymer chain ends of the neodymium rubber to functionalize the chain ends of the polymer chains with silicon containing groups. This results in the rubber having better characteristics for utilization in tire rubber formulations, such a tire tread formulations, that exhibit improved wear characteristics and lower rolling resistance. The process for the synthesis of such functionalized polydiene rubber comprises (1) polymerizing a diene monomer in the presence of a lanthanide-based catalyst system, and (2) terminating the polymerization with a vinyl silane terminator.
Type:
Grant
Filed:
September 17, 2020
Date of Patent:
September 26, 2023
Assignee:
The Goodyear Tire & Rubber Company
Inventors:
Seth Cody Ensign, Margaret Flook Vielhaber, Jena Lynn Johngrass, Liqing Ma
Abstract: The invention pertains to novel fluorinated thermoplastic elastomers, including PCTFE-like plastomeric blocks, contributing substantially to the improvement of sealing performances upon increasing temperature of the fluorinated thermoplastic elastomers comprising the same.
Abstract: Disclosed is a linear low-density polyethylene grafted with maleic anhydride (MAH-g-LLDPE). The MAH-g-LLDPE has a unique combination of properties including a low density and a high melt index.
Type:
Grant
Filed:
November 30, 2020
Date of Patent:
September 19, 2023
Assignee:
Westlake Longview Corporation
Inventors:
John H. Brindle, Jr., Richard K. Stuart, Jr., James H. Scott, David B. Conner, Kevin J. Taylor, Scott T. Trochim
Abstract: A method for producing molded foam articles that molds molded foam articles continuously, the method comprising continuously repeating the following step 1, step 2, step 3 and step 4 in this order; wherein step 1 comprises melting a resin composition that includes a liquid crystal polyester; step 2 comprises introducing, with an introduction device, a supercritical fluid that is unreactive, in a supercritical state, with the liquid crystal polyester, and is a gas at normal temperature and normal pressure, into the resin composition in an amount of at least 0.1 parts by mass but not more than 0.
Abstract: Compositions may include a polymer melt blend composition prepared from two polyethylene copolymers having different densities, wherein the polymer melt blend composition possesses improved flowability and impact resistance for low thickness rotomolding applications. Low thickness articles may include a polymer melt blend composition prepared from two polyethylene copolymers having different densities, wherein the articles possess improved finishing properties. Rotomolding processes may include melt blending from two polyethylene copolymers having different densities, pulverizing the melt blend, and rotational molding the composition thereof.
Abstract: The invention relates to a process for producing a polypropylene composition by sequential polymerization the polypropylene composition having an improved balanced combination of high flowability, high stiffness and impact, and high level of optical properties.
Type:
Grant
Filed:
January 25, 2022
Date of Patent:
September 5, 2023
Assignee:
BOREALIS AG
Inventors:
Jingbo Wang, Markus Gahleitner, Elisabeth Potter, Jani Aho, Klaus Bernreitner, Luc Monnissen, Meta Cigon
Abstract: The present disclosure provides a process including providing a polyolefin aqueous dispersion having (50) to (90) wt % solids content of dispersion, the polyolefin aqueous dispersion containing solid particles containing a polyolefin including an ethylene-based polymer having a melting temperature from greater than (115)° C. to (140)° C., polyolefin wax, acrylic dispersant; and an aqueous phase including excess acrylic dispersant; adding diluting water to form a diluted polyolefin aqueous dispersion having (5) to less than (50) wt % solids content; collecting the solid particles; washing the solid particles with a washing agent to remove the excess acrylic dispersant; and removing the washing agent to form a powder having a mean volume average particle size from (10) to (300) ?m, a sphericity from (0.92) to (1.0), a particle size distribution from (1) to less than (2), a particle density from (98)% to (100)%, and a flow rate in a large funnel from (1) to (5) seconds.
Type:
Grant
Filed:
October 22, 2018
Date of Patent:
September 5, 2023
Inventors:
Craig F. Gorin, Sanjib Biswas, Yi Fan, Thomas L. Tomczak, Daniel L. Dermody, Harpreet Singh
Abstract: Heat-expandable microspheres including a thermoplastic resin shell and a thermally-vaporizable blowing agent encapsulated therein. The thermoplastic resin is a polymer of a polymerizable component containing a cross-linkable monomer (A) which has at least two (meth)acryloyl groups per molecule and a reactive carbon-carbon double bond in addition to the (meth)acryloyl groups and has a molecular weight of at least 500. Also disclosed are hollow resin particles manufactured by expanding the heat-expandable microspheres; fine-particle-coated hollow resin particles including the hollow resin particles; a composition including a base component and the heat-expandable microspheres, or hollow resin particles, or fine-particle coated hollow resin particles; and a formed article manufactured by forming the composition.
Abstract: In accordance with the invention, a textile cord coat composition for a tire comprises from 70 to 90 phr cis 1,4-polyisoprene rubber, from 10 to 30 phr styrene butadiene rubber, from 25 to 45 phr carbon black, the latter comprising between 1 and 6 phr high surface area carbon black having a BET surface area of more than 700 m2/g. Moreover, the invention is directed to a textile reinforced ply and a tire comprising such a textile cord coat composition.
Type:
Grant
Filed:
June 15, 2020
Date of Patent:
September 5, 2023
Assignee:
THE GOODYEAR TIRE & RUBBER COMPANY
Inventors:
Adrian Osvaldo Balaguer Pino, Julia Martine Francoise Claudine Tahon
Abstract: Components for articles of footwear and athletic equipment are provided including a foam. A variety of foams and foam components and compositions for forming the foams are provided. In some aspects, the foams and components including the foams can have exceptionally high energy return while also having improved durability and softness. In particular, midsoles including the foams are provided for use in an article of footwear. Methods of making the compositions and foams are provided, as well as methods of making an article of footwear including one of the foam components. In some aspects, the foams and foam components can be made by injection molding or injection molding followed by compression molding.
Abstract: Expanded poly(lactide) (PLA) beads are made by pressurizing PLA beads with carbon dioxide at approximately room temperature, heating the beads under pressure to 90 to 160 C to saturate and partially crystallize the beads, and then depressurizing and cooling the beads. The PLA beads contain a blend of PLLA and PDLA in certain ratios. The beads are useful for making expanded bead foam.