Patents Examined by Roberto Rabago
  • Patent number: 10184014
    Abstract: A process for increasing purity of a low density polyethylene (LDPE) composition, comprising the steps of: a) providing a melted composition comprising LDPE having Mn of at least 5.0 kg/mol according to size exclusion chromatography, Mw of at least 50 kg/mol according to size exclusion chromatography, a density of 915 to 935 kg/m3 according to ISO1183 and a melt flow rate of 0.10 g/10 min to 80 g/10 min according to ISO1133:2011 measured at 190° C. and 2.16 kg, and b) providing particles from the melted composition by: b1) mixing a supercritical fluid in the melted composition to obtain a solution saturated with the supercritical fluid and b2) expanding the solution through an opening to obtain the particles.
    Type: Grant
    Filed: April 29, 2015
    Date of Patent: January 22, 2019
    Assignee: SABIC GLOBAL TECHNOLOGIES B.V.
    Inventors: Diego Mauricio Castaneda Zuniga, Peter Neuteboom, Jan Nicolaas Eddy Duchateau, Zeljko Knez
  • Patent number: 10167383
    Abstract: The invention provides a process to form a “first composition comprising a first ethylene/?-olefin interpolymer and a second ethylene/?-olefin interpolymer,” said process comprising polymerizing a first mixture comprising ethylene, an ?-olefin, and optionally a polyene, in a stirred tank reactor to form a first ethylene/?-olefin interpolymer, and transferring at least some of the first ethylene/?-olefin interpolymer to a loop reactor, and polymerizing, therein, a second mixture comprising ethylene, an alpha-olefin, and optionally a polyene, in the presence of the first ethylene/?-olefin interpolymer, to form the “first composition comprising the first ethylene/?-olefin interpolymer and the second ethylene/?-olefin interpolymer.” The invention also provides a polymerization reactor configuration comprising at least the following: a stirred tank reactor followed by a loop reactor.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: January 1, 2019
    Assignee: Dow Global Technologies LLC
    Inventors: Thomas W. Karjala, Jorge Rubalcaba, Edward O. Madenjian, Curvel Hypolite, Pradeep Jain
  • Patent number: 10155825
    Abstract: A solid catalyst component for olefin polymerization, and in particular for the preparation of LLDPE, comprising Mg, Ti, halogen and an electron donor compound (ID) belonging to cyclic ethers having 3-6 carbon atoms, characterized by having the molar ratio Mg/Ti higher than 5, the molar ratio Mg/ID lower than 3, and by a specific X-ray diffraction spectrum.
    Type: Grant
    Filed: August 10, 2011
    Date of Patent: December 18, 2018
    Assignee: Basell Poliolefine Italia S.r.l.
    Inventors: Joachim T. M. Pater, Dario Liguori, Gianni Vitale, Gianni Collina, Diego Brita, Tiziano Dall'Occo, Giampiero Morini
  • Patent number: 10150829
    Abstract: The present invention relates to a super absorbent polymer and a preparation method thereof, the super absorbent polymer including: surface cross-linked polymer particles prepared by surface cross-linking particles of a base resin, the base resin polymerized from a monomer composition including water-soluble ethylene-based unsaturated monomers having at least partially neutralized acidic groups; and a water-soluble component, wherein the water-soluble component has a weight average molecular weight of 150,000 to 300,000 g/mol. The super absorbent polymer may have high centrifuge retention capacity and excellent permeability at the same time, while having low content of the water-soluble component.
    Type: Grant
    Filed: November 4, 2015
    Date of Patent: December 11, 2018
    Assignee: LG Chem, Ltd.
    Inventors: Sang Gi Lee, Chul Hee Ryu, Kyu Pal Kim, Bhom Ri Kim
  • Patent number: 10150828
    Abstract: The present invention relates to a process for producing a propylene terpolymer comprising comonomer units derived from ethylene and from one alpha-olefin selected from the group of C4-C8 alpha-olefins and being characterized by a total content of comonomer units not less than 8% wt and a value of the ratio of ethylene to the C4-C8 alpha-olefins ranging from 0.1 to 0.8, said process being carried out in a gas-phase reactor comprising two interconnected polymerization zones. The present invention further relates to the propylene terpolymer obtained by said process particularly suitable to be used as films such as cast films, bi- or mono-oriented films and heat-sealable films having good optical properties and excellent sealing properties combined with good shrinkage properties and softness.
    Type: Grant
    Filed: July 29, 2008
    Date of Patent: December 11, 2018
    Assignee: Basell Poliolefine Italia S.r.l.
    Inventors: Claudio Cavalieri, Camillo Cagnani, Alessandro Guidicini
  • Patent number: 10125226
    Abstract: A chemical synthesis process is provided for the functionalization of monodispersed triblock copolymer (POEw-POPy-POEw) with secondary or tertiary amines at a semi-industrial level in glass reactors having a capacity between 1 L and 100 L. The process includes two stages where the first stage uses an alkylsulfonyl or arylsulfonyl chloride to obtain better leaving groups, and the second stage is the nucleophilic substitution with secondary or tertiary amines, to obtain the bifunctionalized triblock copolymers. The main advantage for this process is to reduce the quantity of unitary process done in each stage, the optimization of reaction times, and the stoichiometric relationships.
    Type: Grant
    Filed: June 4, 2014
    Date of Patent: November 13, 2018
    Assignee: INSTITUTO MEXICANO DEL PETROLEO
    Inventors: Cesar Andres Flores Sandoval, Eugenio Alejandro Flores Oropeza, Alfonso Lopez Ortega, Jose Gonzalo Hernandez Cortez, Aristeo Estrada Buendia, Laura Veronica Castro Sotelo, Reyna Reyes Martinez, Fernando Alvarez Ramirez, Arquimedes Estrada Martinez, Flavio Salvador Vazquez Moreno
  • Patent number: 10100226
    Abstract: The present invention relates to anaerobically curable compositions demonstrating resistance to elevated temperature conditions.
    Type: Grant
    Filed: May 3, 2016
    Date of Patent: October 16, 2018
    Assignee: HENKEL IP & HOLDING GMBH
    Inventors: Shabbir Attarwala, Qinyan Zhu, Klaus Schindler
  • Patent number: 10088491
    Abstract: Provided herein are methods for sequestering an alkyne-presenting molecule in a sample and related sequestration reagents, compositions, methods and systems.
    Type: Grant
    Filed: March 7, 2014
    Date of Patent: October 2, 2018
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Carlos A. Valdez, Alexander K. Vu
  • Patent number: 10087308
    Abstract: The present invention relates to the field of vulcanization of unsaturated polymers, in particular halogenated, and more particularly chlorinated, unsaturated polymers, such as, for example, polychloroprene, using as vulcanization agent a mixture of bis(2,5-dimercapto-1,3,4-thiadiazole) and at least one organic base. The present invention relates to the process for vulcanization of said polymers with said vulcanization mixture.
    Type: Grant
    Filed: September 21, 2016
    Date of Patent: October 2, 2018
    Assignee: MLPC INTERNATIONAL
    Inventors: Isabelle Yarzabal, Thierry Aubert, Pierre Lugez
  • Patent number: 10081687
    Abstract: The present disclosure relates to a process for chlorination of a polymer. The process of the present disclosure includes minimum use of light and maximum chlorine utilization for getting maximum chlorination yield. The chlorinated polymer obtained by the process of the present disclosure exhibit improved properties viz. thermal stability, color, inherent viscosity and mechanical properties.
    Type: Grant
    Filed: July 27, 2016
    Date of Patent: September 25, 2018
    Assignee: RELIANCE INDUSTRIES LIMITED
    Inventors: Pradip Munshi, Ninad Deepak Ingle, Pradeep Paresh Kapadia, Raksh Vir Jasra
  • Patent number: 10081695
    Abstract: A cross-linked rubber obtained by cross-linking a nitrile rubber composition, wherein the nitrile rubber composition contains a carboxyl group-containing nitrile rubber (a) with an iodine value of 120 or less and a diurethane compound (b) represented by a following general formula (1), a content of the diurethane compound (b) in the nitrile rubber composition is 5 to 15 parts by weight with respect to 100 parts by weight of the carboxyl group-containing nitrile rubber (a), and a tensile strength of the cross-linked rubber based on JIS K6251 is 15 MPa or more and an elongation at break of the cross-linked rubber based on JIS K6251 is 300% or more, is provided.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: September 25, 2018
    Assignee: ZEON CORPORATION
    Inventor: Kentaro Mori
  • Patent number: 10081699
    Abstract: A rubber composition contains a diene rubber component containing at least 20 mass % of a modified conjugated diene rubber, a silica, and a silane coupling agent; the modified conjugated diene rubber having at least one modified part and at least one conjugated diene rubber part; the conjugated diene rubber part having a conjugated diene copolymer block and an isoprene block containing from 70 mass % to 100 mass % of isoprene units in each conjugated diene rubber part; the modified part bonding to an end of the conjugated diene rubber part and having a functional group which interacts with the silica; a content of the silica being from 60 to 200 parts by mass per 100 parts by mass of the diene rubber component; the silane coupling agent being a polysiloxane represented by formula (1), (A)a(B)b(C)c(D)d(R1)eSiO(4-2a-b-c-d-e)/2, and having a content from 1.0 to 20 mass % of the content of the silica.
    Type: Grant
    Filed: February 25, 2014
    Date of Patent: September 25, 2018
    Assignee: The Yokohama Rubber Co., LTD.
    Inventors: Masaki Sato, Satoshi Mihara
  • Patent number: 10072114
    Abstract: A modified conjugated diene polymer obtained by modifying a conjugated diene polymer that is obtained by polymerizing a conjugated diene compound or polymerizing a conjugated diene compound and an aromatic vinyl compound is produced by a production method comprising a first modification step wherein an unsaturated binding site at least either in the skeleton or at the side chain of the conjugated diene polymer is reacted with a first compound having a group 4 or 13 element of the periodic table.
    Type: Grant
    Filed: September 18, 2013
    Date of Patent: September 11, 2018
    Assignee: JSR CORPORATION
    Inventors: Hiroyuki Morita, Takahiro Kawai, Takeshi Yuasa, Koichiro Tani, Koji Okada, Ryoji Tanaka
  • Patent number: 10066076
    Abstract: Disclosed are a method for preparing a conjugated diene polymer including synthesizing an initiator having an anionic end containing an amine and a cationic end containing an alkali metal, polymerizing a combination of an aromatic vinyl monomer using the initiator to synthesize a polymer having a modified end, coupling or reacting the polymer with a compound having at least one silyl group substituted by an alkoxy group and a nitrogen atom to prepare a modified conjugated diene polymer having one end containing amine and the other end containing silyl group substituted by one or more alkoxy group and a nitrogen atom, and a rubber composition comprising the conjugated diene polymer and silica as a reinforcing agent and thus exhibiting superior heat generation, tensile strength, abrasion resistance and wet skid resistance.
    Type: Grant
    Filed: May 1, 2018
    Date of Patent: September 4, 2018
    Assignee: LG CHEM, LTD.
    Inventors: Ro Mi Lee, Sang Mi Lee, Heung Yeal Choi, Yu Jin Kim, Moon Seok Chun
  • Patent number: 10065173
    Abstract: The present invention provides a process for producing a water-absorbent resin, characterized in that a reverse-phase suspension polymerization of a water-soluble ethylenically unsaturated monomer is carried out in a hydrocarbon dispersion medium comprising a dispersion stabilizer while an azo-based compound and a peroxide are combined in the presence of an internal-crosslinking agent, in that the following formulae are satisfied, 0.10?B/(A+B)??(1), and 0.055?B+9×C?0.120??(2), wherein A mol, B mol and C mol represent used amounts of the azo-based compound, the peroxide and the internal-crosslinking agent, respectively, relative to 100 mol of the water-soluble ethylenically unsaturated monomer used in the polymerization, and in that a post-crosslinking reaction is carried out by adding a post-crosslinking agent after the polymerization. The present invention also relates to a water-absorbent resin having specific performance and produced by the process.
    Type: Grant
    Filed: November 4, 2014
    Date of Patent: September 4, 2018
    Assignee: SUMITOMO SEIKA CHEMICALS CO., LTD.
    Inventors: Tetsuhiro Hinayama, Masahiro Murakami, Junichi Takatori
  • Patent number: 10058001
    Abstract: Methods, compositions, apparatuses, and systems are provided for a hybrid thermoplastic gel or sealant. The methods comprise providing (a) a base polymer having at least one functional group capable of crosslinking, (b) a functionalized extender, and (c) heat, and reacting the base polymer and functionalized extender in the presence of the heat to form the hybrid thermoplastic gel. The gel composition may comprise 5-40 wt % of a base polymer, 60-95 wt % of a functionalized extender, and 0-10 wt % of a crosslinker. A closure or interconnect system may comprise a housing, a cable, and a hybrid thermoplastic gel or sealant. A telecommunications apparatus may comprise a telecommunications component and a sealant that forms a seal with the telecommunications component. The sealant may comprise a sealant material having a first range of elongation followed by a second range of elongation.
    Type: Grant
    Filed: July 12, 2017
    Date of Patent: August 21, 2018
    Assignee: CommScope Technologies LLC
    Inventors: Gary W. Adams, Julian S. Mullaney, Michael A. Oar
  • Patent number: 10047177
    Abstract: The present disclosure provides a process for the reduction of residual acidity of halogenated polymer. The process involves treating the halogenated polymer to a physical process such as rotary vacuum drying and then neutralizing the treated halogenated polymer with alkaline metal salt solutions. The process requires less quantity of an economic neutralizing agent/base during chemical treatment, thus improving process economy without prejudicing quality of the final halogenated polymer.
    Type: Grant
    Filed: July 24, 2014
    Date of Patent: August 14, 2018
    Assignee: RELIANCE INDUSTRIES LIMITED
    Inventors: Pradip Munshi, Ninad Deepak Ingle, Pradeep Paresh Kapadia, Vijay Shivaji Kadam, Ajit Behari Mathur, Raksh Vir Jasra
  • Patent number: 10040930
    Abstract: Polypropylene copolymer for biaxially oriented polypropylene (BOPP) with low isotacticity, high melting temperature and low comonomer content.
    Type: Grant
    Filed: September 23, 2014
    Date of Patent: August 7, 2018
    Assignees: ABU DHABI POLYMERS CO. LTD (BOROUGE) LLC., BOREALIS AG
    Inventors: Dietrich Gloger, Thomas Horill, Vijay Francis, Gurusamy Sakkaraiyappan, Niraj Dixit, Kauno Alastalo, Torvald Vestberg, Johan Defoer
  • Patent number: 10040878
    Abstract: The present invention relates to a vinyl chloride polymer having good thermal stability due to the restraint of dehydrochlorination by heat or ultraviolet rays, and a method of preparing the same. The generation of the dehydrochlorination of the vinyl chloride polymer due to heat or ultraviolet rays may be markedly restrained, the thermal stability thereof may be improved, and the discoloration thereof or the modification of the physical properties thereof may be prevented. In addition, a modifier may be introduced to a polymerization process at the end of the polymerization, and high thermal stability may be attained without generating the transformation of the vinyl chloride polymer.
    Type: Grant
    Filed: September 14, 2015
    Date of Patent: August 7, 2018
    Assignee: LG CHEM, LTD.
    Inventors: Kyung Seog Youk, Hyun Min Lee, Chan Hee Lee, Heung Kwon Bae, Kwang Jin Lee, Kyung Hyun Kim, Jung Rae Lee
  • Patent number: 10030107
    Abstract: A cross-linked rubber is excellent in both fuel oil resistance and cold resistance. A cross-linkable rubber composition contains: a nitrile group-containing copolymer rubber [A] including less than 30 wt % ?,?-ethylenically unsaturated nitrile monomer units (a1), conjugated diene monomer units (b1), and ?,?-ethylenically unsaturated dicarboxylic acid monoester monomer units (d1), wherein at least part of the conjugated diene monomer units (b1) is hydrogenated; a nitrile group-containing copolymer rubber [B] including not less than 30 wt % ?,?-ethylenically unsaturated nitrile monomer units (a2) and conjugated diene monomer units (b2), wherein at least part of the conjugated diene monomer units (b2) may be hydrogenated; and an amine-based cross-linking agent.
    Type: Grant
    Filed: March 13, 2015
    Date of Patent: July 24, 2018
    Assignee: ZEON CORPORATION
    Inventors: Arinobu Katada, Yoshio Fukumine, Atsuhiro Shiono