With Synthetic Resin Patents (Class 51/298)
  • Patent number: 11414542
    Abstract: The invention relates to an impregnation resin mixture and to the use thereof. In one embodiment, an impregnation resin mixture includes a) at least one epoxide resin component selected from the group consisting of polyepoxides based on bisphenol A and/or F, and advancement resin produced therefrom, based on epoxidized halogenated bisphenols and/or epoxidized novolaks and/or polyepoxide esters based on phthalic acid, hexahydrophthalic acid, or based on terephthalic acid, epoxidized polyaddition products from dicyclopentadiene and phenol or cycloaliphatic compounds, b) as reactive diluents, 2 to 30 wt. % lactones with respect to the sum of the epoxy resin components, c) BCI3 and/or BCI3 complexes and/or a compound selected from the group of imidazoles and d) optionally additional additives, wherein the impregnation resin mixture does not contain any carboxylic acid anhydrides.
    Type: Grant
    Filed: September 19, 2018
    Date of Patent: August 16, 2022
    Inventors: Gunda Kuhlmann, Christoph Scheuer, Panagiotis Saltapidas
  • Patent number: 11390717
    Abstract: The coating composition of the present application has excellent antistatic properties and thus can be used as an antistatic hard coating film. The coating composition of the present application may comprise a salt based on a polyoxometalate anion and a radically polymerizable cation, and a radically polymerizable binder to form an antistatic hard coating film having excellent antistatic property, abrasion resistance and moist-heat resistance. Such a film can be used for an optical laminate and a display device, and the like.
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: July 19, 2022
    Assignee: LG Chem, Ltd.
    Inventors: Hyeok Jeong, Cheol Hee Lee, Jin Kyu Lee
  • Patent number: 11383305
    Abstract: A cBN sintered compact has cubic boron nitride particles and a ceramic binder phase, and in the sintered compact, WSi2 having an average particle diameter of 10 nm to 200 nm is dispersed such that a content thereof is 1 vol % to 20 vol %. A cutting tool has the cBN sintered compact as a tool body.
    Type: Grant
    Filed: March 14, 2019
    Date of Patent: July 12, 2022
    Inventors: Masahiro Yano, Shirou Oguchi, Yosuke Miyashita
  • Patent number: 11338411
    Abstract: An abrasive article can include a body including a bond material and abrasive particles contained within the bond material. The bond material can include an organic material including a resin, particularly a phenolic resin. A methylene bridge can be present at para or ortho sites of aromatic phenolic rings. The bond material can include an average ortho to para substituent ratio for the methylene bridge within a range including at least 1.5:1 and not greater than 9:1, particularly, within a range including at least 3 and not greater than 6.9.
    Type: Grant
    Filed: May 10, 2017
    Date of Patent: May 24, 2022
    Inventor: Zehua Shi
  • Patent number: 11305335
    Abstract: A curing agent for water glass molding comprises: ester; amorphous silica; and water. The amorphous silica is formed by means of a pyrolysis method and/or by means of a precipitation method. Also disclosed is a use of the curing agent for water glass molding in preparation of a casting mold and a mold core. Respective components of the curing agent comprising ester, amorphous silica and water are mixed at a high speed to form a suspension. Next, the suspension is applied to prepare a water glass self-hardening sand. The curing agent does not cause powder contamination, and can be measured and added conveniently. Also disclosed are a manufacturing method of the curing agent for water glass molding and a water glass self-hardening sand.
    Type: Grant
    Filed: February 4, 2017
    Date of Patent: April 19, 2022
    Inventors: Jianxun Zhu, Huimin Yao
  • Patent number: 11235436
    Abstract: An abrasive article may include an organic bond material, abrasive particles contained within the organic bond material and a plasticizer contained within the organic bond material. The plasticizer may include at least one of an aromatic phenyl group, a heteroaromatic furyl group, or a saturated aliphatic hydrocarbon. The plasticizer may further include a polar group.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: February 1, 2022
    Inventors: Andrew B. Schoch, Alexander Nashed, Sena Ada Carleen, Dean S. Matsumoto, Anne M. Bonner, Shaw Ling Hsu, Jigneshkumar P. Patel, Subrajeet Deshmukh, Caixia Zhao
  • Patent number: 11236205
    Abstract: The present disclosure is directed to a process for the preparation of resin-inorganic fibers composite and the obtained resin-inorganic fibers composite for coating. The process comprises the step of providing inorganic fibers bearing one or more monomer functional groups reactive with a monomer component; and reacting resin-forming monomer components with the inorganic fibers bearing one or more monomer functional groups reactive with a monomer component, to obtain the resin-inorganic fibers composite, wherein the resin is selected from the group consisting of alkyd resin, polyester resin and a combination thereof. The present disclosure is also directed to a coating composition containing the composite and a coating formed from the coating composition.
    Type: Grant
    Filed: February 20, 2018
    Date of Patent: February 1, 2022
    Assignee: Guangdong Huarun Paints Co., Ltd.
    Inventors: Weihua Kai, Gang Duan, Xi Zhao, Shigang Fan
  • Patent number: 11189543
    Abstract: A method and apparatus for conducting heat away from a semiconductor die are disclosed. A board assembly is disclosed that includes a first circuit board having an opening extending through the first circuit board. A Chemical Vapor Deposition Diamond (CVDD) window extends within the opening. A layer of thermally conductive paste extends over the CVDD window. A semiconductor die extends over the layer of thermally conductive paste such that a hot-spot on the semiconductor die overlies the CVDD window.
    Type: Grant
    Filed: September 12, 2019
    Date of Patent: November 30, 2021
    Assignee: Microchip Technology Caldicot Limited
    Inventors: Philip Andrew Swire, Nina Biddle
  • Patent number: 11179828
    Abstract: Disclosed are an additive raw material composition and an additive for superhard material product, a composite binding agent, a superhard material product, a self-sharpening diamond grinding wheel and a method for manufacturing the same. The raw material composition consisting of components in following mass percentage: Bi2O3 25%˜40%, B2O3 25%˜40%, ZnO 5%˜25%, SiO2 2%˜10%, Al2O3 2%˜10%, Na2CO3 1%˜5%, Li2CO3 1%˜5%, MgCO3 0%˜5%, and CaF2 1%˜5%. The composite binding agent is prepared from the additive and a metal composite binding agent. The self-sharpening diamond grinding wheel prepared from the composite binding agent has high self-sharpness, high strength, and fine texture, is uniformly consumed during the grinding process, does not need to be trimmed during the process of being used, and maintains good grinding force all the time, fundamentally solving the problems of long trimming time and high trimming cost of the diamond grinding wheel (FIG. 1).
    Type: Grant
    Filed: July 24, 2019
    Date of Patent: November 23, 2021
    Inventors: Ning Yan, Xin Han, Junkai Niu, Bo Xing
  • Patent number: 11160734
    Abstract: A personal care composition is disclosed comprising abrasive particles. The personal care composition may take a variety of forms such as a leave-on composition or an emulsion and/or may comprise one or more actives or agents.
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: November 2, 2021
    Assignee: The Procter & Gamble Company
    Inventors: Denis Alfred Gonzales, Martin Ian James, Geert Andre De Leersnyder, Steven Ray Merrigan, Thomas Allen Desmarais, Paul Robert Tanner, Binwu Tao
  • Patent number: 11148255
    Abstract: The present disclosure relates generally to coated abrasive articles that include a grinding aid aggregates in a make coat, a size coat, a supersize coat, or combinations thereof, as well as methods of making coated abrasive articles.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: October 19, 2021
    Inventors: Jianna Wang, Shih-Chieh Kung, Sujatha K. Iyengar, Doruk O. Yener, Darrell K. Everts
  • Patent number: 11103975
    Abstract: The present invention relates to an abrasive disk that is excellent in workability and stability and has a low degree of fatigue applied to workers and tools, and a process for producing the same. The abrasive disc is excellent in stability by virtue of a high adhesive strength of each layer, has high flexibility, elasticity, and adhesiveness, and is lightweight per unit area. Thus, it has a low degree of fatigue applied to workers and expensive tools. In addition, according to the above production process, the abrasive disk can be continuously mass-produced.
    Type: Grant
    Filed: March 21, 2019
    Date of Patent: August 31, 2021
    Assignee: TU GLOBAL LTD.
    Inventor: Yong Bum Kim
  • Patent number: 11072563
    Abstract: A fused grain having the following chemical composition in percent by weight in relation to the oxides: ZrO2: 16% to 30%, provided that HfO2<2%, Al2O3: percentage needed to bring the total to 100%, Cr2O3: ?0.2%, TiO2: ?0.5%, Cr2O3+TiO2: <7%, other elements: <3%, provided that SiO2+CaO+MgO<1.5%.
    Type: Grant
    Filed: February 10, 2017
    Date of Patent: July 27, 2021
    Inventors: Céline Delwaulle, Arnaud Apheceixborde
  • Patent number: 11072053
    Abstract: The present disclosure provides methods of making a vitreous bond abrasive article and a metal bond abrasive article. The methods include sequential steps. Step a) includes a subprocess including sequentially: i) depositing a layer of loose powder particles in a confined region; and ii) selectively applying heat via conduction or irradiation, to heat treat an area of the layer of loose powder particles. The loose powder particles include abrasive particles and organic compound particles, as well as vitreous bond precursor particles or metal particles. The layer of loose powder particles has substantially uniform thickness. Step b) includes independently carrying out step a) a number of times to generate an abrasive article preform comprising the bonded powder particles and remaining loose powder particles. Step c) includes separating remaining loose powder particles from the abrasive article preform.
    Type: Grant
    Filed: January 18, 2017
    Date of Patent: July 27, 2021
    Assignee: 3M Innovative Properties Company
    Inventors: Carsten Franke, Maiken Givot, Malte Korten, Robert L. W. Smithson, Brian D. Goers, Negus B. Adefris, Thomas J. Anderson, Brian A. Shukla, Michael C. Harper, Elizaveta Y. Plotnikov
  • Patent number: 11014850
    Abstract: Cement, concrete, stucco, and plaster that are have black ceramic polymer derived pigments, and in embodiments have a uniform blackness throughout the structure. In embodiments the black pigment is a ceramic SiOC, that has a size of about 0.8 ?m.
    Type: Grant
    Filed: October 25, 2018
    Date of Patent: May 25, 2021
    Assignee: Melior Innovations, Inc.
    Inventors: David Bening, Mark S. Land
  • Patent number: 11002307
    Abstract: A connecting arrangement is provided between joining partners which are braced separably against each other in the chassis region of a vehicle, wherein the joining partners are braced against each other via their contact surfaces by at least one releasable fastening element. Hard particles are applied to the contact surface at least of one of the joining partners before the production of the connecting arrangement and therefore before the bracing mounting of the joining partners and of the fastening element. The hard particles at least partially project into the respectively other contact surface as a result of the bracing mounting. The hard particles are applied so as to be at least approximately abrasion-proof, for example by a blasting process.
    Type: Grant
    Filed: August 17, 2017
    Date of Patent: May 11, 2021
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventor: Hoang Viet Bui
  • Patent number: 10994475
    Abstract: Methods of layerwise fabrication of a three-dimensional object, and objected obtained thereby are provided. The methods are effected by dispensing at least a first modeling formulation and a second modeling formulation to form a core region using both said first and said second modeling formulations, an inner envelope region at least partially surrounding said core region using said first modeling formulation but not said second modeling formulation, and an outer envelope region at least partially surrounding said inner envelope region using said second modeling formulations but not said first modeling formulation; and exposing said layer to curing energy, thereby fabricating the object, The first and second modeling formulations are selected such they differ from one another, when hardened, by at least one of Heat Deflection Temperature (HDT), Izod Impact resistance, Tg and elastic modulus.
    Type: Grant
    Filed: September 20, 2017
    Date of Patent: May 4, 2021
    Assignee: Stratasys Ltd.
    Inventors: Avraham Levy, Diana Ravich, Lior Zonder, Gil Shelef, Cesar M. Manna
  • Patent number: 10982021
    Abstract: A flame retardant with which fire retardancy is improved and the fire retardancy is able to be secured stably for a long time is provided. An internal layer 11 containing a polymer and a flame retardant factor layer 12 that is formed outside of the internal layer 11 and that contains a polymer to which at least one of a sulfonate group and a sulfonate base is bonded are included. Thereby, compared to a case that the flame retardant factor layer 12 is not included, moisture is hardly absorbed, and respective particles of the flame retardant are inhibited from being adhered to each other. Accordingly, blocking is inhibited.
    Type: Grant
    Filed: November 22, 2016
    Date of Patent: April 20, 2021
    Inventor: Yasuhito Inagaki
  • Patent number: 10967094
    Abstract: The present disclosure provides for and includes improved devices and methods for the production of Purified Hydrogen Peroxide Gas (PHPG) that is substantially non-hydrated and substantially free of ozone.
    Type: Grant
    Filed: February 8, 2019
    Date of Patent: April 6, 2021
    Assignee: Synexis LLC
    Inventors: James D. Lee, Douglas J. Bosma
  • Patent number: 10960515
    Abstract: A laterally-stretched netting comprising a patterned abrasive layer on a first major surface thereof, and methods of making.
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: March 30, 2021
    Assignee: 3M Innovative Properties Company
    Inventors: Aaron K. Nienaber, Ronald W. Ausen, John M. Brandner, Thomas J. Nelson, Stephen M. Sanocki
  • Patent number: 10946445
    Abstract: A method of fabricating a cemented carbide article by additive manufacturing, and a granular material are disclosed. A precursor material is provided that comprises granules, the granules comprising carbide grains and a binder comprising any of cobalt, nickel and iron. Each granule has a density of at least 99.5% of the theoretical density and the granules of the precursor material have a mean compressive strength of at least 40 megapascals (MPa). An additive manufacturing process is used to manufacture the article by building up successive layers of material derived from the precursor material.
    Type: Grant
    Filed: December 19, 2016
    Date of Patent: March 16, 2021
    Assignee: Element Six GmbH
    Inventors: Igor Yurievich Konyashin, Bernd Heinrich Ries, Hauke Hinners
  • Patent number: 10926213
    Abstract: A sulfur dioxide absorbent that is an ionic liquid including a solvent; and a salt of a diamine compound that is substituted with a hydroxyl group and has a chemical formula 1 to 3 below dissolved in the solvent: where, in Chemical Formula 1 and 2, R1-R4 are the same or different and each is independently selected from the group consisting of H, a C1-C6 alkyl, and a C1-C6 alkoxy; and where, in Chemical Formula 1 to 3, X is selected from the group consisting of Cl, Br, I, MeSO3, CF3SO3, HCO2, CF3CO2 and CH3CO2; and n is an integer of 1-10. The sulfur dioxide absorbent is constituted to selectively absorb sulfur dioxide and sulfurous acid (H2SO3) formed by combination of sulfur dioxide with water, not CO2.
    Type: Grant
    Filed: June 27, 2019
    Date of Patent: February 23, 2021
    Assignee: Korea Institute of Science and Technology
    Inventors: Hyun Joo Lee, Ung Lee, Hong Gon Kim, Shinhye Cho, He Won Lee
  • Patent number: 10913844
    Abstract: A curable composition includes a hydrogen-bonded prepolymer, a plasticizer, and, optionally, a crosslinking agent. The plasticizer includes a reactive plasticizer having structure (I), (II), or (III), wherein X is —OR1, —N(R1)2, —R4—OR1, or —R4—N(R1)2, wherein R1 is independently at each occurrence hydrogen or C1-6 alkyl, and R4 is C1-12 alkylene; y is zero or 1; z is zero or 1; R2 is C1-12 alkyl; and R3 is C1-12 alkyl when z is 1, or R3 is C1-12 alkyl or H when z is zero.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: February 9, 2021
    Inventors: Shaw Ling Hsu, Jigneshkumar P. Patel, Subrajeet Deshmukh, Caixia Zhao
  • Patent number: 10865113
    Abstract: There is provided a method for obtaining a purified aqueous solution of silicic acid containing less metal impurities such as Cu and Ni using water glass as a raw material with less number of purification steps than that in conventional methods without using any unnecessary additives. The method for producing a purified aqueous solution of silicic acid, the method comprising the steps of: (a) passing an aqueous solution of alkaline silicate having a silica concentration of 0.5% by mass or more and 10% by mass or less through a column filled with a polyamine-, iminodiacetic acid-, or aminophosphoric acid-type chelating resin, and (b) passing the aqueous solution passed in the step (a) through a column filled with a hydrogen-type cation exchange resin.
    Type: Grant
    Filed: October 14, 2016
    Date of Patent: December 15, 2020
    Inventors: Hiroaki Sakaida, Eiichiro Ishimizu
  • Patent number: 10849236
    Abstract: An anisotropic conductive film having a multilayer structure having conductive particles arranged in a single layer has a first connection layer and a second connection layer formed on a surface of the first connection layer. The first connection layer is a photopolymerized resin layer, and the second connection layer is a thermally or photo-cationically, anionically, or radically polymerizable resin layer. On the surface of the first connection layer on a side of the second connection layer, the conductive particles for anisotropic conductive connection are arranged in a single layer, and the first connection layer contains an insulating filler.
    Type: Grant
    Filed: February 3, 2015
    Date of Patent: November 24, 2020
    Inventors: Reiji Tsukao, Yasushi Akutsu
  • Patent number: 10813444
    Abstract: Polishing media in the form of bristles made from a porous polymer-based material, apparatus and systems including the media, and methods of forming and using the media, apparatus, and systems are disclosed. A method of manufacturing bristles for use in polishing a workpiece which includes a non-planar surface includes the steps of combining a liquid polymer material and a foaming agent to form a foamed polymeric material, and separating the foamed polymeric material into a plurality of bristles. The foaming agent is configured to impart a porosity to the polymeric material, where the porosity is characterized by a density in the range of 0.3 to 1.2 g/cm3.
    Type: Grant
    Filed: May 25, 2018
    Date of Patent: October 27, 2020
    Assignee: JH Rhodes Company, Inc.
    Inventors: Scott Daskiewich, Brent Muncy, James Klein, Peter Rentein
  • Patent number: 10815392
    Abstract: A process for chemical mechanical polishing a substrate containing tungsten is disclosed to reduce corrosion rate and inhibit dishing of the tungsten and erosion of underlying dielectrics. The process includes providing a substrate; providing a polishing composition, containing, as initial components: water; an oxidizing agent; nonionic polyacrylamide; a dicarboxylic acid, a source of iron ions; a colloidal silica abrasive having a negative zeta potential; and, optionally, a pH adjusting agent; providing a chemical mechanical polishing pad, having a polishing surface; creating dynamic contact at an interface between the polishing pad and the substrate; and dispensing the polishing composition onto the polishing surface at or near the interface between the polishing pad and the substrate; wherein some of the tungsten is polished away from the substrate, corrosion rate is reduced, dishing of the tungsten is inhibited as well as erosion of dielectrics underlying the tungsten.
    Type: Grant
    Filed: March 3, 2019
    Date of Patent: October 27, 2020
    Inventors: Lin-Chen Ho, Wei-Wen Tsai
  • Patent number: 10811307
    Abstract: Polishing slurries for polishing semiconductor substrates are disclosed. The polishing slurry may include first and second sets of colloidal silica particles with the second set having a silica content greater than the first set.
    Type: Grant
    Filed: October 2, 2018
    Date of Patent: October 20, 2020
    Assignee: GlobalWafers Co., Ltd.
    Inventors: Hui Wang, Vandan Tanna, Tracy Michelle Ragan, James Raymond Capstick
  • Patent number: 10752734
    Abstract: A polymeric material process includes increasing a mobility within a polymer to enables specific alignment of polymer chains.
    Type: Grant
    Filed: January 15, 2018
    Date of Patent: August 25, 2020
    Assignee: Raytheon Technologies Corporation
    Inventors: Dmitri Novikov, David Ulrich Furrer, Sergei F. Burlatsky, Hillary Anne Huttenhower, Vadim V. Atrazhev, Vadim I. Sultanov, Dmitry Dmitriev, John D. Riehl, Charles R. Watson
  • Patent number: 10717908
    Abstract: An abrasive particle includes at most three surfaces and at least one edge which has a corner at at least one end. The abrasive particle may contain a ceramic material, particularly polycrystalline ?-Al2O3. Abrasive particles as a whole, methods for producing abrasive particles, moulds, abrasive articles, methods for producing abrasive articles, and methods for abrading a surface are also disclosed.
    Type: Grant
    Filed: January 22, 2018
    Date of Patent: July 21, 2020
    Assignee: Robert Bosch GmbH
    Inventors: Georg Hejtmann, Petra Stedile, Stefan Fuenfschilling, Moritz Oldenkotte, Thomas Rohner, Donat Frei, Adrian Jenni, Tony Pleschinger, Gert Lindemann, Andreas Harzer
  • Patent number: 10711171
    Abstract: A shaped abrasive particle including a body having a first major surface, a second major surface, and a side surface joined to the first major surface and the second major surface, and the body has at least one partial cut extending from the side surface into the interior of the body.
    Type: Grant
    Filed: June 9, 2016
    Date of Patent: July 14, 2020
    Inventors: Ralph Bauer, Jennifer H. Czerepinski, Lucie Fraichard, Flavien Fremy, Jun Jia, Frederic Josseaux, David F. Louapre, Samuel S. Marlin, Doruk O. Yener
  • Patent number: 10679842
    Abstract: The present invention provides: an InP wafer optimized from the viewpoint of small edge roll-off (ERO) and sufficiently high flatness even in the vicinity of a wafer edge; and a method for effectively producing the InP wafer. The InP wafer having a roll-off value (ROA) of from ?1.0 ?m to 1.0 ?m is obtained by using a method including: performing a first stage polishing under a processing pressure of from 10 to 200 g/cm2 for a processing time of from 0.1 to 5 minutes, while supplying a polishing solution containing bromine to at least one side of an InP single crystal substrate that will form the InP wafer; and performing a second stage polishing under a processing pressure of from 200 to 500 g/cm2 for a processing time of from 0.5 to 10 minutes, provided that the processing pressure is higher than that of the first stage polishing by 50 g/cm2 or higher.
    Type: Grant
    Filed: April 6, 2018
    Date of Patent: June 9, 2020
    Assignee: JX Nippon Mining & Metals Corporation
    Inventors: Taku Yoshida, Hideki Kurita
  • Patent number: 10668598
    Abstract: A coated abrasive article comprising a backing, an adhesive layer disposed in a discontinuous distribution on at least a portion of the backing, wherein the discontinuous distribution comprises a plurality of adhesive contact regions and at least one shaped abrasive particle is disposed on a majority of each of the discrete adhesive contact regions, wherein at least 50% of the shaped abrasive particles comprise a predetermined side orientation and have a tilt angle of at least 45 degrees, wherein the shaped abrasive particles comprise a polycrystalline material and are free of binder, wherein the first plurality of discrete adhesive contact regions comprise a predetermined two-dimensional shape as viewed from above, and wherein each of the discrete contact regions comprises a length, a width, or a combination thereof that substantially corresponds to a dimension of the at least one abrasive particle.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: June 2, 2020
    Inventors: Anuj Seth, Darrell K. Everts, Vivek Cheruvari Kottieth Raman
  • Patent number: 10508057
    Abstract: A high strength ceramic body for use in a regenerative burner media bed, comprising a generally spherical refractory portion and a plurality of irregular aggregate portions distributed randomly throughout the generally spherical portion. The aggregate portions are selected from the group comprising tabular alumina, white fused alumina, mullite, chamotte, and combinations thereof. The generally spherical portion has a porosity of less than 1 percent and is more than 99.5 weight percent alumina.
    Type: Grant
    Filed: September 6, 2017
    Date of Patent: December 17, 2019
    Assignee: O'Brien Asset Management, LLC
    Inventor: Brian Osborne
  • Patent number: 10435588
    Abstract: A polishing composition that can suppress surface defects and reduce haze is provided. A polishing composition includes: abrasives; at least one water-soluble polymer selected from vinyl alcohol-based resins having a 1,2-diol structural unit; and an alkali compound, where an average particle size of particles in the polishing composition measured by dynamic light scattering is not more than 55 nm. Preferably, the polishing composition further includes a non-ionic surfactant. Preferably, the polishing composition further includes a polyalcohol.
    Type: Grant
    Filed: October 20, 2016
    Date of Patent: October 8, 2019
    Inventors: Noriaki Sugita, Mika Tazuru, Takayuki Matsushita, Shuhei Matsuda
  • Patent number: 10414868
    Abstract: The present invention provides a preparation method of polyimide, comprising the following steps: a) carrying out a dehydration polymerization reaction on a diamine and an anhydride of an organic acid in a non-polar solvent to obtain a mixture, the non-polar solvent being one or more of arene, aliphatic hydrocarbon, halogenated arene and halogenated aliphatic hydrocarbon, and the anhydride of the organic acid being one or more of dianhydride and single anhydride: and b) filtering the mixture obtained in step a) and drying to obtain the polyimide. In the present invention, the dehydration polymerization reaction between the diamine and the anhydride of the organic acid can be carried out directly in the non-polar solvent to obtain the polyimide which cannot be dissolved in the non-polar solvent. Therefore, polyimide powder with fine particles can be obtained by directly filtering and drying the reaction mixture without washing.
    Type: Grant
    Filed: November 8, 2012
    Date of Patent: September 17, 2019
    Inventors: Xin Zhang, Jibin Zhong, Mengxian Ding, Xiaoyi Lv
  • Patent number: 10377018
    Abstract: A sheet of coarse sandpaper includes a backing layer having opposed first and second major surfaces, an adhesive make coat on the second major surface, coarse abrasive particles at least partially embedded in the make coat, thereby defining a coarse abrasive surface, and an exposed non-slip coating layer on the first major surface. Methods of making and using such coarse sandpaper are also provided.
    Type: Grant
    Filed: March 6, 2012
    Date of Patent: August 13, 2019
    Assignee: 3M Innovative Properties Company
    Inventors: Thomas E. Pahl, John G. Petersen, Michael P. Wald
  • Patent number: 10323165
    Abstract: An agglomerate abrasive grain includes a mixture of individual abrasive grains and hollow bodies, wherein the abrasive grains and the hollow bodies are held together via a binding matrix of aluminosilicate and alkali silicate, and the agglomerate abrasive grain has an open porosity and a closed porosity in each case ranging from 5% by volume to 40% by volume, wherein the total porosity of the agglomerate abrasive grain is less than 50% by volume.
    Type: Grant
    Filed: September 11, 2013
    Date of Patent: June 18, 2019
    Assignee: ImerTech SAS
    Inventors: Knuth Gebhardt, Georg Paul Zylka
  • Patent number: 10227827
    Abstract: A method of forming a polycrystalline diamond compact comprises providing metallized diamond particles including diamond particles including nanograins of a sweep catalyst secured thereto, the sweep catalyst comprising at least one of tungsten and tungsten carbide and constituting between about 0.01 weight percent and about 1.0 weight percent of the metallized diamond particles and placing the metallized diamond particles and a metal solvent catalyst in a container. The metallized diamond particles are subjected to a high-temperature, high-pressure process in the presence of the metal solvent catalyst to form a polycrystalline diamond material having inter-bonded diamond grains and nanograins of tungsten carbide, the nanograins of tungsten carbide covering less than about twenty percent of a surface area of the inter-bonded diamond grains. Polycrystalline diamond compacts and earth-boring tools including the polycrystalline diamond compacts are also disclosed.
    Type: Grant
    Filed: September 9, 2015
    Date of Patent: March 12, 2019
    Assignee: Baker Hughes Incorporated
    Inventors: Steven W. Webb, Anthony A. DiGiovanni
  • Patent number: 10145179
    Abstract: A wellbore tool may be formed, at least in part, by a fiber-reinforced hard composite portion. The fiber-reinforced hard composite portion can include reinforcing particles and reinforcing fibers dispersed in a binder, wherein the reinforcing fibers have an aspect ratio ranging from 1 to 15 times a critical aspect ratio (Ac). The critical aspect ratio can be determined using the equation Ac=?f/(2?c), wherein ?f is an ultimate tensile strength of the reinforcing fibers, and ?c is an interfacial shear bond strength between the reinforcing fiber and the binder or a yield stress of the binder, whichever is lower.
    Type: Grant
    Filed: December 11, 2014
    Date of Patent: December 4, 2018
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Grant O. Cook, III, Garrett T. Olsen, Daniel Brendan Voglewede, Jeffrey G. Thomas
  • Patent number: 10137556
    Abstract: Shaped abrasive particles comprising alpha alumina and having a cross-sectional shape along a longitudinal axis of the shaped abrasive particles, the cross-sectional shape comprising a non-circular cross-sectional plane, and the shaped abrasive particles comprise an Average Roundness Factor of between about 15% to 0%.
    Type: Grant
    Filed: September 30, 2009
    Date of Patent: November 27, 2018
    Inventor: Dwight D. Erickson
  • Patent number: 10086498
    Abstract: The present invention relates generally to coated abrasive articles that include active filler particles in a supersize coat, a make coat, or combinations thereof, as well as methods of making and using said coated abrasive articles.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: October 2, 2018
    Inventor: Julienne C. Regele
  • Patent number: 10071459
    Abstract: A multi-layered polishing pad arrangement includes a first polishing pad layer having a first top and a first bottom major surface, a second polishing pad layer having a second top and a second bottom major surface, and a coupling arrangement disposed between the first bottom surface and the second top surface. The thickness of each of the first and second polishing pad layer ranges between 0.125 mm and 10 mm.
    Type: Grant
    Filed: September 23, 2014
    Date of Patent: September 11, 2018
    Assignee: 3M Innovative Properties Company
    Inventors: Paul S Lugg, Duy K Lehuu
  • Patent number: 10040892
    Abstract: [Problem] To provide a polyurethane elastic yarn which has the high strength and ductility sought in polyurethane elastic yarn, and also has excellent durability and heat resistance, as well as little fatigue at low temperature; and a production method thereof. [Means of Resolution] A polyurethane elastic yarn made from polyurethane which has polymer diol and diisocyanate as starting substances, wherein said polyurethane comprises a polyurethane A containing a polybutadiene structure in which the proportion of 1,2-bonded butadiene structure to 1,4-bonded butadiene structure in the molecule is in the range from 91:9 to 20:80.
    Type: Grant
    Filed: October 26, 2010
    Date of Patent: August 7, 2018
    Assignee: INVISTA North America S.a r.l.
    Inventors: Hiroshi Takayama, Toshihiro Tanaka, Masashi Hara, Hong Liu
  • Patent number: 10035305
    Abstract: In some examples, a method includes depositing a mixture including a resin and an additive powder via a print head of a three-dimensional printing system to form a carbon fiber preform including a plurality of individual carbon fiber layers, wherein each individual layer of the plurality of individual carbon fiber layers includes a plurality of carbon fibers and the mixture of the resin and the additive powder.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: July 31, 2018
    Assignee: Honeywell International Inc.
    Inventors: Mark L. La Forest, Slawomir T. Fryska
  • Patent number: 10016875
    Abstract: A method for fabricating an abrasive firm includes preparing a base film, coating the base film with a first paint which contains no abrasive grain but contains a binder resin, and drying the paint to form a first layer. The method further includes coating the first layer with a second paint which contains the abrasive grains and the binder resin, and drying the paint to form a second layer. The method further includes heating the first layer and the second layer for imidization.
    Type: Grant
    Filed: May 24, 2016
    Date of Patent: July 10, 2018
    Inventors: Yu Ishii, Hiroyuki Kawasaki, Masayuki Nakanishi, Kenya Ito
  • Patent number: 9951054
    Abstract: The invention provides a chemical-mechanical polishing pad comprising a polymeric matrix and 0.1-15 wt. % of metal oxide particles. The polymeric matrix has pores, the metal oxide particles are uniformly distributed throughout the pores, and the metal oxide particles have a specific surface area of about 25 m2/g to about 450 m2/g. The invention further provides a method of polishing a substrate with the polishing pad.
    Type: Grant
    Filed: April 15, 2010
    Date of Patent: April 24, 2018
    Assignee: Cabot Microelectronics Corporation
    Inventors: Shoutian Li, Robert Vacassy, Jaishankar Kasthuri
  • Patent number: 9873180
    Abstract: Embodiments of the disclosure generally provide polishing pads includes a composite pad body and methods for forming the polishing pads. One embodiment provides a polishing pad including a composite pad body. The composite pad body includes one or more first features formed from a first material or a first composition of materials, and one or more second features formed from a second material or a second composition of materials, wherein the one or more first features and the one or more second features are formed by depositing a plurality of layers comprising the first material or first composition of materials and second material or second composition of materials.
    Type: Grant
    Filed: April 24, 2015
    Date of Patent: January 23, 2018
    Inventors: Rajeev Bajaj, Kasiraman Krishnan, Mahendra C. Orilall, Daniel Redfield, Fred C. Redeker, Nag B. Patibandla, Gregory E. Menk, Jason G. Fung, Russell Edward Perry, Robert E. Davenport
  • Patent number: 9862853
    Abstract: A dispersion which contains particles of a carboxylic acid polymer dispersed in an organic medium containing an emollient ester and/or a non-ionic surfactant. The dispersion can be used to form a gel composition by mixing with a water miscible emollient ester and optionally water. The dispersion and gel can be used to form an emulsification system. The dispersion, gel and emulsification system are suitable for use in forming end-use emulsions, preferably at low temperature and low shear, and in particular, emulsions having a high oil phase concentration. The emulsions can be used in a wide range of applications, including personal care, household and industrial.
    Type: Grant
    Filed: March 11, 2008
    Date of Patent: January 9, 2018
    Inventors: Mildred Estrada Tamor, David Peter Dowdell
  • Patent number: 9840648
    Abstract: A surface-treating article includes an organic matrix substantially engulfed by a binder that includes a reaction product of a blocked polyurethane prepolymer and a mixture of aromatic amines. The aromatic amines include polymethylene polyaniline having a functionality equal to or greater than 4.
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: December 12, 2017
    Inventors: Shyiguei Hsu, Alejandro Gomez, Charles G. Herbert