Abstract: The present invention relates to a rubber composition with an excellent grip force; a method of producing the rubber composition; a shoe sole, a shoe, and a tire each using the rubber composition; and a method of improving a frictional force of a rubber component.
Abstract: This invention is based upon the unexpected discovery that silica containing tire tread rubber performance characteristics, such as hysteresis and payne effect, can be significantly improved using low levels of coupling agents and increasing silanization times and temperatures. The rubbers formulations made in accordance with this finding are of particular value for use in the treads of winter tires. Such rubber formulations will typically be made using a maximum level of about 7 phf of silica coupling agent and will more typically contain 3 phf to 6 phf of the silica coupling. A silanization time of at least 4 minutes or 5 minutes (within the range of 4 to 10 minutes) at a temperature of at least 150° C. and preferably 160° C. (within the range of 150° C. to 180° C.) will also be used.
Type:
Grant
Filed:
December 13, 2021
Date of Patent:
September 26, 2023
Assignee:
The Goodyear Tire & Rubber Company
Inventors:
George Jim Papakonstantopoulos, Brad Stephen Gulas, Bruce Raymond Hahn
Abstract: The present disclosure provides a method of preparing a vinyl chloride-based polymer, and the method provides excellent productivity while having reduced amount of a volatile organic compound generated so as to provide the vinyl chloride-based polymer suitable for an eco-friendly material, and improved foaming and viscosity properties of a plastisol including the prepared polymer, by adding a carbonate-based metal salt and a transition metal catalyst together, and controlling input time and amount of the transition metal catalyst.
Type:
Grant
Filed:
October 30, 2019
Date of Patent:
September 19, 2023
Assignee:
LG CHEM, LTD.
Inventors:
Jae Hyun Park, Hyun Min Lee, Hyun Kyou Ha, Kun Ji Kim, Kwang Jin Lee, Yang Jun Jeon, Jin Hyuck Ju
Abstract: Crumb rubber obtained from recycled tires is subjected to an interlinked substitution process. The process utilizes a reactive component that interferes with sulfur bonds. The resulting treated rubber exhibits properties similar to those of the virgin composite rubber structure prior to being granulated, and is suitable for use in fabricating new tires, engineered rubber articles, and asphalt rubber for use in waterproofing and paving applications.
Abstract: Non-ASTM low hysteresis carbon blacks chemically treated, and surface coated with a compound comprising at least one amine group and at least one thiol group, and/or di- and/or polysulfidic linkage. When compared with a standard ASTM grade compound, the disclosed surface modified low hysteresis carbon black compound shows improved rolling resistance, wet traction, and DIN abrasion, comparable to silica compounds.
Type:
Grant
Filed:
January 21, 2022
Date of Patent:
September 12, 2023
Assignee:
Continental Carbon Co.
Inventors:
Raymond Soufiani, Eduardo Vega, Jr., Lashan Madusha Hendavitharanage De Silva, Frank E. Welsh, Luis P. Chibante
Abstract: Disclosed is a method of producing a fabric product, the method comprising preparing an upper; preparing a lining fabric; layering a thermoplastic hot-melt film between the upper and the lining fabric for bonding the upper and the lining fabric; bonding a lining fabric to the upper, wherein the thermoplastic hot-melt film consists of the composition selected from the group consisting of thermoplastic polyurethane, ethylene vinyl acetate, polyamide and polyester compositions, wherein the thermoplastic hot-melt film further contains nanosilica, wherein a content of the nanosilica is 0.1 to 5.0 Parts per Hundred Resin (phr) and a size of the nanosilica is less than 100 nm.
Abstract: The introduction of graphene as an additive in rubber compounds is disclosed. The product shows increased barrier protection for tire innerliners, with no tradeoffs in other characteristics.
Type:
Grant
Filed:
July 15, 2022
Date of Patent:
August 29, 2023
Inventors:
Douglas Paschall, Adel F. Halasa, Michael Brendan Rodgers
Abstract: The invention relates to a sulfur-crosslinkable rubber mixture, a vulcanizate and a vehicle tire. The sulfur-crosslinkable rubber mixture contains at least the following constituents: at least one diene rubber and at least one silica and at least one silane having the general empirical formula [(R1)oSi—(R3—)pX—(R4—)p]mSn(R2)2-m,??I) where X is a radical comprising at least one polar group selected from urethane, amide, ester, amine, thiourea, thioamide, O-organyl thiocarbamate, S-organyl thiocarbamate, amidine, guanidine, piperidine, maleic anhydride, sulfonamide, carbonate, imidazoline, thiazolidine, thiazolidinone, pyrrolidine, pyrazole, benzimidazole, indole, purine, thiazine, sulfonate, and phosphonate groups.
Type:
Grant
Filed:
June 11, 2019
Date of Patent:
August 29, 2023
Assignee:
Continental Reifen Deutschland GmbH
Inventors:
Julia Schöffel, Norbert Müller, Carla Recker, Kirsten Schwekendiek
Abstract: According to the rubber composition for a tire tread comprising a diene-based rubber component, and, based on 100 parts by mass of the diene-based rubber component, 0.5 to 6.0 parts by mass of a branched alkane of 40 to 70 carbon atoms, 0.05 to 3.5 parts by mass of a linear alkane of 45 or more carbon atoms and 1 to 35 parts by mass of aluminum hydroxide, and a tire comprising tread composed of the rubber composition for a tire tread of the present invention, a rubber composition for a tire tread capable of improving initial wet grip performance can be provided, thereby providing a tire having such improved initial wet grip performance.
Abstract: A rubber compound for the production of tire portions comprising a polymer base with a cross-linkable unsaturated chain, a filler system and a vulcanization system. The filler system comprises (a) a quantity, greater than or equal to 25 phr, of a first carbon black having a surface area smaller than or equal to 170 m2/gr; (b) a second carbon black having a surface area greater than or equal to 300 m2/gr in a quantity that is such that the ratio between the quantity of said first carbon black and the quantity of said second carbon black is greater than or equal to 5 and smaller than or equal to 13; (c) a quantity ranging between 0.5 and 2.0 phr of a dispersant agent comprised in the class of aromatic amides and having an unsaturation suited to interact with the polymer base with a cross-linkable unsaturated chain.
Type:
Grant
Filed:
September 17, 2019
Date of Patent:
August 22, 2023
Assignee:
Bridgestone Europe NV/SA
Inventors:
Gianpaolo Chieffi, Aya Saiki, Davide Privitera
Abstract: Modified asphalt compositions and methods of making same. The modified asphalt compositions include asphalt, a crosslinkable polymer, and a dialkyl polysulfide. The methods of making the compositions include blending a mixture of asphalt, a crosslinking polymer, and a dialkyl polysulfide, such as at a temperature of about 100-300° C.
Abstract: This application relates to natural rubber (NR) composites, and more specifically to a method of preparing a graphene/natural rubber composite. In the method provided herein, nano-silica loaded graphene oxide (SiO2-GO) is formed by electrostatic interaction between silica and graphene oxide (GO), and then the SiO2-GO is added to natural rubber (NR) latex to obtain a SiO2-GO/NR masterbatch by aqueous phase synergistic aggregation-precipitation process. The SiO2-GO/NR masterbatch is subjected to mechanical blending and vulcanization to obtain the graphene/NR composite.
Type:
Grant
Filed:
December 7, 2022
Date of Patent:
August 22, 2023
Assignees:
NORTH UNIVERSITY OF CHINA, SHANXI ZHOHNGBEI NEW MATERIAL TECHNOLOGY CO., LTD.
Abstract: Pavement aging can be reduced by applying to an asphalt-containing pavement a topcoat layer or a surface treatment containing asphalt binder emulsion with sterols.
Type:
Grant
Filed:
October 11, 2018
Date of Patent:
August 8, 2023
Assignees:
A.L.M. Holding Company, Ergon Asphalt & Emulsions, Inc.
Inventors:
Gerald H. Reinke, Gaylon L. Baumgardner, Andrew Hanz
Abstract: In one aspect, a single layer polymer film includes 25 to 97.5 wt % of a polyimide having a refractive index of 1.74 or less, 0.5 to 20 wt % of a matting agent and 1 to 30 wt % of a black colorant. On an air side, the single layer polymer film has an L* color of 33 or less and a 60° gloss of 10 or less. In another aspect, a single layer polymer film includes 80 to 99 wt % of a polyimide having a refractive index of 1.74 or less and 1 to 30 wt % of a black colorant. A surface of the single layer polymer film has been textured and has a maximum roughness (Spv) of 7 ?m or more, an L* of 33 or less and a 60° gloss of 10 or less.
Type:
Grant
Filed:
November 3, 2020
Date of Patent:
August 8, 2023
Assignee:
DUPONT ELECTRONICS, INC.
Inventors:
Laila Maclaughlin, Husnu Alp Alidedeoglu, Christopher Robert Becks, Thomas Edward Carney, Scott John Herrmann, Joseph Casey Johnson
Abstract: Provided is a method for preparing a modified filler. The method includes in sequence providing an acidified aqueous slurry of an untreated inorganic filler which has not been previously dried; an emulsifier material; and a hydrophobating agent having the following structural formula (I): Ra?M-X(4?a)??(I) wherein: R is C6 to C22 alkyl, M is silicon, titanium or zirconium, X is OR? or halogen, R? is C1 to C4 alkyl, and a is 1; washing and/or filtering the acidified aqueous slurry to obtain a modified filler; and, optionally, drying the modified filler. Polymeric compositions and articles also are provided.
Type:
Grant
Filed:
December 15, 2020
Date of Patent:
July 25, 2023
Assignee:
PPG Industries Ohio, Inc.
Inventors:
Lucas Dos Santos Freire, Sik Boen, Nathan J. Silvernail
Abstract: A pelletized road marking composition includes a binder mixture, a filler mixture and bentonite clay. The binder mixture includes at least one alkyd ester, at least one wax, at least one ethylene copolymer, and at least one plasticizer. The filler mixture includes at least one coloring additive, reflective elements, and at least one inert inorganic filler. The components of the road marking composition are mixed and melted and processed into pellets. The bentonite clay added to the composition prevents the pellets from clumping when stored at elevated temperatures.
Type:
Grant
Filed:
September 24, 2019
Date of Patent:
July 18, 2023
Assignee:
Ennis-Flint, Inc.
Inventors:
Govindasamy Paramasivam Rajendran, Mark Terry, Jeffrey Lee Stricker
Abstract: The present invention is directed to a rubber composition comprising 100 phr of at least one diene-based rubber, 30 phr to 250 phr of at least one filler, and 1 phr to 40 phr of an epoxidized and aminated fatty acid ester, wherein the epoxidized and aminated fatty acid ester is obtained from the reaction of an epoxidized fatty acid ester with an aliphatic amine. Furthermore, the present invention is directed to a rubber product, such as a tire, comprising such a rubber composition.
Type:
Grant
Filed:
April 15, 2021
Date of Patent:
July 18, 2023
Assignees:
The Goodyear Tire & Rubber Company, Luxembourg Institute of Science and Technology (LIST)
Inventors:
Marc Weydert, Frida Nzulu, Arpan Datta Sarma, Pierre Verge, Daniel Schmidt
Abstract: Provided herein is a resin composition containing milled fibreglass and graphene. Also provided herein is a composite material containing cured resin composition, fibreglass reinforced resin containing the composite material and further fibreglass, a laminate including a layer of the fibreglass reinforced resin, and methods of making the resin composition, composite material and fibreglass reinforced resin. The composition, composite material and fibreglass reinforced resin and laminate find use in, for example, the construction of swimming pools and spa pools.
Abstract: Provided is a tire for a motorcycle having an improved turning stability on wet road surface, the tire comprises a tread composed of a rubber composition, which comes into contact with a road surface, wherein Hs being a rubber hardness and M300 being a tensile stress (MPa) at 300% elongation of the rubber composition of the tread satisfy Equations 1, 2, and 3: 60?Hs?80,??Equation 1: 2?M300?12, and??Equation 2: (M300?2)/(Hs?60)?0.75.
Abstract: An anti-sticking agent composition for an unvulcanized rubber of the present disclosure includes the following components (A) to (C), and water is provided. The component (A) contains the following component (A1) and the following component (A2). The component (A) is water-soluble polymer, the component (B) is metallic soap, the component (C) is surfactant, the component is (A1) water-soluble polymer other than the component (A2), and the component (A2) is non-ionic cellulose ether.
Type:
Grant
Filed:
April 25, 2021
Date of Patent:
July 4, 2023
Assignee:
LION SPECIALTY CHEMICALS CO., LTD.
Inventors:
Shiro Sehata, Kazuyuki Sakamoto, Takao Oka