Patents Examined by David T Karst
  • Patent number: 10544249
    Abstract: Aqueous polymer dispersions and their use for producing shaped articles having improved heat resistance are described.
    Type: Grant
    Filed: April 1, 2015
    Date of Patent: January 28, 2020
    Assignee: BASF SE
    Inventors: Lucia Jimenez Garcia, Juergen Blaul
  • Patent number: 10544341
    Abstract: The present invention provides a thermal conductive polymer composition with low probability for mixing of an air bubble in a thermal conductive molded article, which is a thermal conductive polymer composition including thermal conductive inorganic particles having a specific particle size distribution and an electrically insulating polymer.
    Type: Grant
    Filed: December 16, 2014
    Date of Patent: January 28, 2020
    Assignees: NITTO DENKO CORPORATION, NITTO SHINKO CORPORATION
    Inventors: Kenichi Fujikawa, Yoshiharu Hatakeyama, Miho Yamaguchi, Yuji Yamagishi, Akihiro Oohashi
  • Patent number: 10544256
    Abstract: The present invention relates to the use of oligo-N,N-bis(3-aminopropyl)methylamine as hardener for epoxy resins, and also to a corresponding curable composition, curing thereof, and the cured epoxy resin obtainable therefrom.
    Type: Grant
    Filed: July 8, 2016
    Date of Patent: January 28, 2020
    Assignee: BASF SE
    Inventors: Alexander Panchenko, Monika Charrak, Ansgar Gereon Altenhoff, Thomas Reissner, Christian Krausche
  • Patent number: 10544255
    Abstract: The present invention relates to an epoxy resin composition, comprising the following components: (A) an epoxy resin containing oxazolidinone structure having the structure of the formula (1), (B) an active ester curing agent, and (C) a curing accelerator. The epoxy composition, prepreg, laminate and printed circuit board prepared from such epoxy composition have the following features of low coefficient of thermal expansion, low dielectric loss factor Df less than or equal to 0.0084, low water absorption and excellent moisture and heat resistance.
    Type: Grant
    Filed: March 29, 2016
    Date of Patent: January 28, 2020
    Assignee: SHENGYI TECHNOLOGY CO., LTD.
    Inventors: Haosheng Xu, Xianping Zeng, Liexiang He
  • Patent number: 10533071
    Abstract: Disclosed are mixtures containing: mono- and bi-functional polymers [polymers (P-A) and (P—B)] comprising a plurality of (per)fluoropolyether segments [segments (SRF)] joined together by hydrogenated (poly)ether segments [segments (SH)], said polymers having two ends, wherein one or both ends comprises a hydroxy or a leaving group; a non-functional polymer comprising a plurality of (per)fluoropolyether segments (SRF) joined together by hydrogenated (poly)ether segments (SH), with the proviso that the hydrogenated (poly)ether segments (SH) are not segments of formula —CH2OCH2OCH2—. Disclosed are also monofunctional polymers (P-A) that can be isolated from such mixtures. Methods for the obtainment of the mixtures and for separating the polymers therein contained are also provided, as well as methods of using the mixtures or each polymer therein contained as intermediates or building blocks for the synthesis of other polymers or as ingredients of compositions.
    Type: Grant
    Filed: November 23, 2015
    Date of Patent: January 14, 2020
    Assignee: SOLVAY SPECIALTY POLYMERS ITALY S.P.A.
    Inventors: Claudio Adolfo Pietro Tonelli, Ivan Wlassics, Giuseppe Marchionni, Letanzio Bragante
  • Patent number: 10533112
    Abstract: A heavy-duty epoxy coating composition including an epoxy resin, as a main substance, and styrenated phenol represented by Formula 1: wherein n is an integer of 1 to 3.
    Type: Grant
    Filed: October 6, 2016
    Date of Patent: January 14, 2020
    Assignee: Korea Kumho Petrochemical Co., Ltd.
    Inventors: Kee Yoon Roh, Jung Hee Jang, Je-young Park
  • Patent number: 10533095
    Abstract: A curable coating composition and the use, especially in heat exchangers, for heating and/or cooling water, in particular tap water, is described. The curable coating comprises, based on solids after curing, 35-80% by weight of an epoxysilane according to the general structure 1 and/or its hydrolysation and/or condensation products, 1: R1R2aSiR3b with R1 being 3-glycidyloxypropyl, R2 being methyl, R3 being alkyloxy or acyloxy, a being 0, 1 or 2 and b being 3?a and 20-65% by weight of a blocked polyisocyanate and optionally further components. The coating provides improved corrosion protection on aluminium surfaces, reduces limescale formation on heat exchanger surfaces and is able to withstand lateral and/or temporal temperature gradients when coated on heat exchanging surfaces.
    Type: Grant
    Filed: April 22, 2015
    Date of Patent: January 14, 2020
    Assignee: Teknologisk Institut
    Inventors: Stefan Holberg, Claus Bischoff
  • Patent number: 10519372
    Abstract: The present invention provides a soil erosion prevention agent which is excellent in the freeze-thaw stability while maintaining the soil erosion prevention effect. When a toluene-insoluble matter of the water-borne resin emulsion is 60 mass % or more and a content of the water-soluble polymer in the soil erosion prevention agent is 1 to 7 mass %, preferably 3 to 5 mass %, the soil erosion prevention agent excellent in the freeze-thaw stability is provided and suitable for greening and a spraying material. The water-borne resin emulsion is preferably a resin containing a structural unit derived from vinyl acetate, or an ethylene-vinyl acetate copolymer emulsion.
    Type: Grant
    Filed: June 17, 2016
    Date of Patent: December 31, 2019
    Assignee: DENKA COMPANY LIMITED
    Inventors: Koichi Fukuda, Hironori Konishi, Kazuhiro Kote
  • Patent number: 10519343
    Abstract: Provided herein are compositions having a good balance between the curing speed, transparency, tackiness and/or melt viscosity thereof. In one aspect, there are provided compositions containing nano-particulate filler and the use thereof in the preparation of a variety of electronic components, e.g., three-dimensional integrated circuits. In certain aspects, there are provided three-dimensional integrated circuits prepared employing invention compositions (i.e., compositions containing nano-particulate filler), as well as methods for preparing such compositions, and the resulting three-dimensional integrated circuits. In certain aspects, there are also provided methods for improving the curing speed, transparency, tackiness and/or melt viscosity of pre-applied underfill compositions. In certain aspects, there are also provided pre-applied underfill compositions with improved processability.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: December 31, 2019
    Assignee: HENKEL IP & HOLDING GMBH
    Inventor: Qiaohong Huang
  • Patent number: 10513577
    Abstract: An epoxy resin composition includes an organic phosphinic acid metal salt; an epoxy resin; dicyandiamide or a derivative thereof; a curing accelerator having a dimethylureido group; and an imidazole-based curing accelerator having a curing initiation temperature of 100° C. or higher. The curing initiation temperature is measured by a method includes preparing a sample resin composition by adding 10 parts by mass of an imidazole-based curing accelerator to 100 parts by mass of a bisphenol A type epoxy resin having an epoxy equivalent of 180 to 220, and mixing the components; measuring a calorific value of the sample resin composition using a differential scanning calorimeter at a rate of temperature increase of 10° C./min, and designating a temperature at the intersection point of the tangent line at the inflection point of the DSC curve thus obtained and the baseline as the curing initiation temperature.
    Type: Grant
    Filed: June 9, 2016
    Date of Patent: December 24, 2019
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Hisaya Ushiyama, Kenichi Watanabe
  • Patent number: 10501636
    Abstract: A reflective particulate composition includes a particulate substrate, and an inorganic binder, a pigment, and a hydrophobic coating on the particulate substrate. The composition may have a solar reflectance of 70% or greater. The pigment may include a clay, and the hydrophobic coating may include a (meth)acrylic polymer, a coupling agent, a wax and an antioxidant. A method of making the composition may include mixing the pigment, the inorganic binder, a dispersant and water to form a pigment mixture, adding the particulate substrate to the pigment mixture, heat treating the pigmented particulate, and mixing the pigmented particulate with a hydrophobic coating composition. Alternatively, the method may include first mixing the particulate substrate with one of the inorganic binder or the pigment, and then mixing the resulting composition with the other of the inorganic binder and the pigment, and heat treating the pigmented particulate.
    Type: Grant
    Filed: February 12, 2018
    Date of Patent: December 10, 2019
    Assignee: U.S. SILICA COMPANY
    Inventors: Rhonda Marie Jenree, Rocky Lee Smith, David Earl Weller, Jr., Shih-Jen Wu
  • Patent number: 10479858
    Abstract: A two-component curable epoxy resin system including a dye solution. The resin system includes an epoxy resin component containing at least 80% by weight of a polyglycidyl ether of a polyphenol. The system also includes a hardener mixture containing mainly polyethylene tetraamines. The system includes triethylene diamine in specific amounts as a catalyst. The system has beneficial curing characteristics with desired color that make it useful for producing fiber-reinforced composites in a resin transfer molding process.
    Type: Grant
    Filed: June 22, 2016
    Date of Patent: November 19, 2019
    Assignee: Dow Global Technologies LLC
    Inventors: Timothy A. Morley, Rainer Koeniger, Martin Reimers, Peter J. Cate, Nebojsa Jelic, Zeljko Sikman
  • Patent number: 10479939
    Abstract: Provided is a soil erosion prevention agent which can suppress the amount of resin used without decreasing soil erosion prevention effect. A soil erosion prevention agent containing a water-borne resin emulsion, wherein: the emulsion has a solid content of 30 to 70 mass %; and the emulsion has a viscosity of 50 mPa·s or lower measured at 30° C. when a water content of the emulsion is adjusted so that the solid content of the emulsion is 40 mass %, is provided.
    Type: Grant
    Filed: February 4, 2015
    Date of Patent: November 19, 2019
    Assignee: Denka Company Limited
    Inventors: Koichi Fukuda, Hironori Konishi, Kazuhiro Kote
  • Patent number: 10465038
    Abstract: Provided is a curable composition capable of giving a lens that has excellent transfer accuracy from a mold and offers heat resistance and optical properties at excellent levels. The curable composition according to the present invention for lens formation contains a cycloaliphatic epoxide (A) represented by Formula (a), a cationic-polymerization initiator (B), and a polysiloxane (C) represented by Formula (c). The curable composition contains the polysiloxane (C) in an amount of 0.01% to 5% by weight based on the total amount of the curable composition. The curable composition according to the present invention for lens formation may further contain a siloxane compound (D) containing two or more epoxy groups per molecule.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: November 5, 2019
    Assignee: DAICEL CORPORATION
    Inventors: Takeshi Fujikawa, Takashi Kubo
  • Patent number: 10450407
    Abstract: An object of the present invention is to provide curing agent composite particles for epoxy resin, which are less likely to aggregate, and are excellent in storage stability and solvent resistance. Coated particles of the present invention comprise (A) curing agent particles for epoxy resin, and (B) an alkoxy oligomer, wherein the surfaces of the curing agents for epoxy resin particle are coated with the alkoxy oligomer.
    Type: Grant
    Filed: November 11, 2016
    Date of Patent: October 22, 2019
    Assignee: Ajinomoto Co., Inc.
    Inventors: Takayuki Tanaka, Eriko Satou, Yuji Koshima, Junji Ohashi
  • Patent number: 10435601
    Abstract: An adhesive agent having excellent bonding properties with oxide films and excellent heat-dissipation properties and a connection structure using the same. The adhesive agent contains an epoxy compound, a cationic catalyst, and an acrylic resin containing acrylic acid and acrylic acid ester having a hydroxyl group. Acrylic acid in the acrylic resin reacts with the epoxy compound to generate connections between an island of acrylic resin and a sea of epoxy compound and roughen the surface of an oxide film to improve an anchor effect with the sea of epoxy compound; solder particles contained in the adhesive agent are melted to form metal bonding with an electrode, thereby enabling improvement in adhesive strength between the adhesive agent and the electrode and further improving heat dissipation from a surface of the metal bonding.
    Type: Grant
    Filed: May 22, 2015
    Date of Patent: October 8, 2019
    Assignee: DEXERIALS CORPORATION
    Inventors: Masaharu Aoki, Shiyuki Kanisawa, Hidetsugu Namiki, Akira Ishigami
  • Patent number: 10438808
    Abstract: Disclosed and claimed herein is a composition for forming a spin-on hard-mask, having a fullerene derivative and a crosslinking agent. Further disclosed is a process for forming a hard-mask.
    Type: Grant
    Filed: May 25, 2016
    Date of Patent: October 8, 2019
    Assignee: IRRESISTIBLE MATERIALS, LTD
    Inventors: Alex Philip Graham Robinson, Thomas Lada, John L. Roth, Alan G. Brown, Andreas Frommhold, Edward A. Jackson
  • Patent number: 10435583
    Abstract: Provided are a curing agent for epoxy resins, which is a curing agent capable of curing an epoxy resin at room temperature, and which can form a cured product (cured coating film) having excellent adhesion even to a substrate which is not in an environment completely dried, and an epoxy resin composition obtained using the same. A curing agent for epoxy resins, containing (a1) an aromatic amine, (a2) an aliphatic amine having an aromatic ring or a cycloalkane ring, and (a3) a curing accelerator, and an epoxy resin composition containing the curing agent and an epoxy resin.
    Type: Grant
    Filed: November 12, 2015
    Date of Patent: October 8, 2019
    Assignee: DIC Corporation
    Inventors: Tsugio Tomura, Hiroshi Moriyama, Hideaki Kawahara
  • Patent number: 10421834
    Abstract: Provided is a curable composition capable of giving a lens that has excellent transfer accuracy from a mold and offers heat resistance and optical properties at excellent levels. The curable composition according to the present invention for lens formation contains a cycloaliphatic epoxide (A) represented by Formula (a), a cationic-polymerization initiator (B), and a polysiloxane (C) represented by Formula (c). The curable composition contains the polysiloxane (C) in an amount of 0.01% to 5% by weight based on the total amount of the curable composition. The curable composition according to the present invention for lens formation may further contain a siloxane compound (D) containing two or more epoxy groups per molecule.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: September 24, 2019
    Assignee: DAICEL CORPORATION
    Inventors: Takeshi Fujikawa, Takashi Kubo
  • Patent number: 10414857
    Abstract: A curable resin system comprising 1) an epoxy component having a polyglycidyl ether of a polyphenol having an epoxy equivalent weight of up to about 190; and 2) a hardener component comprising polyethylene tetraamine mixture; wherein the epoxy component has a viscosity of less than 9000 mPa·s at 25° C.
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: September 17, 2019
    Assignee: Dow Global Technologies LLC
    Inventors: Timothy A. Morley, Rainer Koeniger, Sergio Grunder, Sylvie Vervoort, Nebojsa Jelic