Polymerizing In Tubular Or Loop Reactor Patents (Class 526/64)
  • Patent number: 10889533
    Abstract: A process for selectively producing 1-butene comprises combining at least one antifouling agent and at least one aluminum alkyl compound to form an antifouling feed stream, wherein bringing the antifouling agent into contact with the aluminum alkyl compound forms at least one antifouling agent co-catalyst in a first step. The antifouling agent co-catalyst may comprise a structure comprising a central aluminum molecule bound to an R1 group, an R2 group, and an R3 group. The process further comprises feeding the antifouling feed stream, a catalyst comprising at least one titanate compound, and ethylene into a reactor dimerize ethylene in a second step. The catalyst is fed as a stream separated from the antifouling feed stream. The feeds may be varied in real-time to adjust a ratio of the formed antifouling agent co-catalyst and residual aluminum alkyl compound or antifouling agent in the antifouling feed stream.
    Type: Grant
    Filed: September 18, 2018
    Date of Patent: January 12, 2021
    Assignee: Saudi Arabian Oil Company
    Inventors: Faisal M. Melibari, Hussain M. Yami, Sohel K. Saikh, Zhonglin Zhang, Wei Xu
  • Patent number: 10828860
    Abstract: The present invention relates to the use of a polyethylene material in liquid containers that are sterilisable at a temperature of ?100° C. during a period of >15 minutes, wherein the polyethylene material has a density >928 kg/m3 as determined according to ISO 1183-1, method A, and a melt mass flow rate of ?0.50 and 51.00 g/10 min as determined according to ISO 1133-1 at a temperature of 190° C. and a load of 2.16 kg; wherein the polyethylene material produced in a high-pressure free-radical polymerisation process at a pressure of ?1600 bar.
    Type: Grant
    Filed: June 17, 2016
    Date of Patent: November 10, 2020
    Assignee: SABIC GLOBAL TECHNOLOGIES B.V.
    Inventors: Marnik Vaes, Bernardus Aldegonda Josephus Raven
  • Patent number: 10787564
    Abstract: Described is a polyethylene composition comprising at least one polyethylene having a crystallinity of less than 60, or 55, or 50% and within a range from 0.2 wt % to 15 wt % of cyclic-olefin copolymer and within a range from 0.2 wt % to 15 wt % of hydrocarbon resin, by weight of the polyethylene composition. The polyethylene compositions can be formed into useful articles such as films and injection molded and thermoformed articles.
    Type: Grant
    Filed: December 4, 2018
    Date of Patent: September 29, 2020
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Gregory K. Hall, Stefan B. Ohlsson, Yong Yang
  • Patent number: 10774159
    Abstract: A process to form an ethylene-based polymer comprising polymerizing a mixture comprising ethylene, in the presence of a free-radical initiator, and in a tubular reactor system comprising at least two ethylene-based feed streams, and a reactor configuration that comprises at least three reaction zones; and the inlet pressure of the first zone is <3200 Bar; and the ethylene conversion >28%, and an m value from 20 mole % to 70 mole %, where m=mol % of ethylene-based feed stream to the first zone, based on total moles of ethylene-based feed streams fed to the reactor configuration; and the ratio (Q) of a “MWDB of a broad polymer polymerized, to a “MWDN of a narrow polymer polymerized, is as follows: {(T)*(?2.3×log(m)+7)}?Q?{(T)*(?13.0×log(m)+29.8)}; at the same melt index; and “T” is the “chain transfer activity ratio” as described herein.
    Type: Grant
    Filed: June 22, 2017
    Date of Patent: September 15, 2020
    Assignee: Dow Global Technologies LLC
    Inventors: Otto J. Berbee, Nhi T. Y. Dang, Cornelis J F Hosman, Joaquin Flores
  • Patent number: 10767036
    Abstract: A polyolefinic fiber made from or containing from 2 wt % to 20 wt % relative to the total weight of the fiber of a polyolefin composition made from or containing: A) 5-35% by weight of a propylene homopolymer or a propylene ethylene copolymer; B) 20-50% by weight of a copolymer of ethylene and a C3-C8 alpha-olefin containing from 0.1% to 20% by weight of alpha-olefin units and containing 25% by weight or less of a fraction soluble in xylene at 25° C.; and C) 30-60% by weight of a copolymer of ethylene and propylene containing from 25% to 75% by weight of ethylene units and containing from 40% to 95% by weight of a fraction soluble in xylene at 25° C.; the amounts of (A), (B) and (C) being referred to the total weight of (A)+(B)+(C), the sum of the amount of (A)+(B)+(C) being 100.
    Type: Grant
    Filed: June 20, 2018
    Date of Patent: September 8, 2020
    Assignee: Basell Poliolefine Italia S.r.l.
    Inventors: Monica Galvan, Claudio Cavalieri, Jaume Marti Porqueres, Renaud Lemaire, Roberto De Palo
  • Patent number: 10730977
    Abstract: A process to form an ethylene-based polymer comprises polymerizing a reaction mixture comprising ethylene, at least one symmetrical polyene and at least one chain transfer agent system comprising at least one chain transfer agent (CTA) in the presence of at least one free-radical initiator and in a reactor configuration comprising at least two reaction zones, reaction zone 1 and reaction zone i (i?2), wherein reaction zone i is downstream from reaction zone 1. The ratio of “the activity of the CTA system of the feed to the first reaction zone” to the “activity of the CTA system of the cumulative feed to the reaction zone i,” (Z1/Zi), is less than or equal to (0.8?0.2*log(Cs)), wherein Cs is from 0.0001 to 10.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: August 4, 2020
    Assignee: Dow Global Technologies LLC
    Inventors: Otto J. Berbee, Stefan Hinrichs, Sean W. Ewart, John O. Osby
  • Patent number: 10710877
    Abstract: The present invention provides a hydrogen generating apparatus and a hydrogen generating method, wherein the hydrogen generating apparatus generates hydrogen by dehydrating formic acid, and comprises: a reactor for containing water and a heterogeneous catalyst; a formic acid feeder for feeding formic acid into the reactor; and a moisture remover for removing moisture generated from the reactor.
    Type: Grant
    Filed: January 27, 2015
    Date of Patent: July 14, 2020
    Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Chang Won Yoon, Suk Woo Nam, Yeong Cheon Kim, Jonghee Han, Sung Pil Yoon, Hyoung-Juhn Kim, Taekhyun Oh, Tae Hoon Lim, Jin Young Kim, Sun-Hee Choi, Hyung Chul Ham
  • Patent number: 10696757
    Abstract: A process is provided to form an ethylene-based polymer, in the presence of at least one free-radical, said process comprises at least the following: polymerizing a mixture comprising ethylene, in a reactor configuration comprising at least three reaction zones, and comprising two ethylene feed streams, and wherein the ratio (RLCBf40%), in percent, of the “LCB content of the first 40 wt % of the total polymer formed” to “the total LCB content in the final polymer” is ?22.5%; and wherein the amount of ethylene, and optionally one or more comonomers, and optionally one or more CTAs, fed to the first reaction zone, is from 40 mole % to 80 mole %, based on the total moles of ethylene, and optionally one or more comonomers, and optionally one or more CTAs, fed to the polymerization.
    Type: Grant
    Filed: November 10, 2016
    Date of Patent: June 30, 2020
    Assignee: Dow Global Technologies LLC
    Inventors: Otto J. Berbee, Joaquin Flores, Cornelis J F Hosman, Nhi Dang
  • Patent number: 10689469
    Abstract: A method of reactive extrusion copolymerization of vinyl monomer consisting of (1) feeding vinyl monomer or at least one vinyl monomer together with an initiator into the first screw of twin-screw extruder, and modified resin into the subsequent screw section; (2) feeding the above monomer into the screw segment after auto-acceleration zone and feeding the initiator corresponding to the temperature of barrel and micro/nano inorganic modified fillers after the half-life period of the initiator; (3) feeding the antioxidant and anti-UV agent at the end of the polymerization, and then removing unpolymerized monomer and by-products by devolatilization of screw segment; (4) obtaining vinyl copolymer resin with a anticipated molecular weight of 5×102 to 6×105 from the reactive extrusion polymerization by controlling the temperature of different screw segments.
    Type: Grant
    Filed: October 11, 2018
    Date of Patent: June 23, 2020
    Assignees: EAST CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY, SHANGHAI FUYUAN RUBBER AND PLASTIC TECHNOLOGY LTD.
    Inventors: Anna Zheng, Yong Guan, Dafu Wei, Xiang Xu, Pengfei Zhan, Weixing Liu, Han Shi
  • Patent number: 10688482
    Abstract: A method for olefin oligomerization comprising i) injecting an olefin monomer and a solvent into a continuous stirred tank reactor; ii) injecting an oligomerization catalyst system comprising a ligand compound, a transition metal compound, and a co-catalyst into the continuous stirred tank reactor; and iii) performing a multimerization reaction of the olefin monomer, wherein a ratio of the flowing rates of the olefin monomer and the solvent is from 1:1 to 2:1.
    Type: Grant
    Filed: February 5, 2016
    Date of Patent: June 23, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Yoon Ki Hong, Yong Ho Lee, Eun Ji Shin, Ki Soo Lee, Jin Young Park, Seok Pil Sa, Seul Ki Im
  • Patent number: 10689333
    Abstract: A process comprising reacting, in a reactor having a fixed bed containing a solid catalyst which contains a zeolite, hydrogen sulfide and an oxirane in the presence of the solid catalyst to yield a reaction product with contains a mercapto-alcohol. A reactor system includes the reactor, an oxirane feed stream, a hydrogen sulfide feed stream, a fixed bed containing the solid catalyst placed inside the reactor, and an effluent stream containing the reaction product. The hydrogen sulfide and the oxirane are present in a mole ratio in a range of about 5:1 to 50:1.
    Type: Grant
    Filed: February 22, 2019
    Date of Patent: June 23, 2020
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Jason L. Kreider, Daniel M. Hasenberg, Alex Pauwels
  • Patent number: 10661540
    Abstract: The disclosure provides a multilayer blown film for stretch hood made from or containing a layer made from or containing a first polyolefin composition made from or containing from 20 wt % to 80 wt %, based upon the total weight of the first polyolefin composition, of Component A) and from 20 wt % to 80 wt %, based upon the total weight of the first polyolefin composition, of Component B); wherein Component A) is an ethylene copolymer and Component B) is a polyolefin composition made from or containing: (i) 5-35% by weight, based upon the total weight of Component B, of a propylene homopolymer or a propylene ethylene copolymer (ii) 20-50% by weight, based upon the total weight of Component B, of a copolymer of ethylene and a C3-C8 alpha-olefin; and (iii) 30-60% by weight, based upon the total weight of Component B, of a copolymer of ethylene and propylene.
    Type: Grant
    Filed: May 9, 2017
    Date of Patent: May 26, 2020
    Assignee: Basell Poliolefine Italia S.r.l.
    Inventors: Monica Galvan, Gianni Perdomi, Claudio Cavalieri
  • Patent number: 10640590
    Abstract: Methods of making polyisobutylene and catalyst systems are described. Polyisobutylene compositions and catalyst system compositions are also described. In some embodiments, a method of making a catalyst system includes: providing a support material; calcining the support material; and forming a catalyst system by adding to the support material (a) a mixture comprising BF3, (b) a mixture comprising BF3 and a complexing agent, or (c) both. In some embodiments, a method of making a polymer composition includes providing a catalyst system comprising: (a) a support material selected from the group consisting of Al2O3, ZrO2, TiO2, SnO2, CeO2, SiO2, SiO2/Al2O3, and combinations thereof; and (b) BF3; providing a feedstock comprising isobutylene; forming a reaction mixture comprising the feedstock and the catalyst system; contacting the isobutylene with the catalyst system; and obtaining a polymer composition.
    Type: Grant
    Filed: February 20, 2018
    Date of Patent: May 5, 2020
    Assignee: NTP Tec, LLC
    Inventor: Clyde Edward Baxter, Jr.
  • Patent number: 10626134
    Abstract: Catalyst systems and methods for making and using the same are disclosed. In an example, a method of synthesizing a monocyclopentadienyl compound is provided. The method includes melting a dicyclopentadienyl compound including the following structure: As used herein, M is hafnium or zirconium. Each R is independently an H, a hydrocarbyl group, a substituted hydrocarbyl group, a heteroatom group. Each X is a leaving group selected from a halogen or a heteroatom group.
    Type: Grant
    Filed: February 27, 2019
    Date of Patent: April 21, 2020
    Assignee: Univation Technologies, LLC
    Inventor: C. Jeff Harlan
  • Patent number: 10544245
    Abstract: The present invention relates to a process for preparing a polyethylene product having a multimodal molecular weight distribution, said process comprising the steps of: (a) feeding ethylene monomer, a diluent, at least one metallocene catalyst, optionally hydrogen, and optionally one or more olefin co-monomers into a first slurry loop reactor; and polymerizing the ethylene monomer, and the optionally one or more olefin co-monomers, in the presence of said at least one metallocene catalyst, and optionally hydrogen, in said first slurry loop reactor thereby producing a first polyethylene fraction; (b) feeding the first polyethylene fraction to a second slurry loop reactor serially connected to the first slurry loop reactor, and in the second slurry loop reactor polymerizing ethylene, and optionally one or more olefin co-monomers, in the presence of the first polyethylene fraction, and optionally hydrogen, thereby producing a second polyethylene fraction; and (c) feeding the second polyethylene fraction to a gas
    Type: Grant
    Filed: July 13, 2016
    Date of Patent: January 28, 2020
    Assignee: Total Research & Technology Feluy
    Inventors: Aurélien Vantomme, Christopher Willocq
  • Patent number: 10494457
    Abstract: A process to form an ethylene-based polymer, said process comprising at least the following: polymerizing a mixture comprising ethylene, in the presence of at least one free-radical initiator, and in a reactor configuration comprising at least three reaction zones and at least two ethylene feed streams; and wherein the inlet pressure of the first reaction zone is less than, or equal to, 3200 Bar; and wherein the amount of ethylene, and optionally one or more comonomers, and optionally one or more CTAs, fed to the first reaction zone is from 40 mole % to 80 mole %, based on the total moles of ethylene, and optionally one or more comonomers, and optionally one or more CTAs, fed to the polymerization; and wherein the average polymerization temperature of the first 40 wt % polymer formed (APT40 wt %) (based on the total amount of polymer formed) is less than, or equal to, 200° C.
    Type: Grant
    Filed: November 10, 2016
    Date of Patent: December 3, 2019
    Assignee: Dow Global Technologies LLC
    Inventors: Otto J. Berbee, Cornelis J F Hosman, Joaquin Flores, Sergio E. Goncalves, Sarat Munjal, Michael E. Bishop, Luiz Rodriguez
  • Patent number: 10494462
    Abstract: Novel polyethylene copolymers having a relatively high comonomer partitioning tendency are disclosed as are methods for their preparation. The comonomer partitioning tendency is the tendency for a copolymer to have comonomer in the higher molecular weight chains. Novel metrics for describing the comonomer partitioning tendency are also disclosed.
    Type: Grant
    Filed: April 21, 2016
    Date of Patent: December 3, 2019
    Assignee: Univation Technologies, LLC
    Inventor: Roger L. Kuhlman
  • Patent number: 10494456
    Abstract: A process to form an ethylene-based polymer, in the presence of at least one free-radical, said process comprises at least the following: polymerizing a mixture comprising ethylene in a reactor configuration comprising at least four reaction zones, and comprising at least three ethylene feed streams; and wherein the ratio of (RLCBf40%), in percent, of the LCB content of the “first 40 wt % of the total polymer formed” to the “total LCB content in the final polymer” is ?29%; and wherein the amount of ethylene, and optionally one or more comonomers, and optionally one or more CTAs, fed to the first reaction zone, is from 20 mole % to 70 mole %, based on the total moles of ethylene, and optionally one or more comonomers, and optionally one or more CTAs, fed to the polymerization.
    Type: Grant
    Filed: November 10, 2016
    Date of Patent: December 3, 2019
    Assignee: Dow Global Technologies LLC
    Inventors: Otto J. Berbee, Joaquin Flores, Cornelis J F Hosman, Nhi Dang
  • Patent number: 10479851
    Abstract: Disclosed herein is a process for producing polymers of an N-vinyl carboxamide, including the steps of flowing a reaction mixture containing an aqueous liquid containing at least one polymerization initiator, N-vinyl carboxamide monomer or a monomer mixture containing N-vinyl carboxamide into a reactor system, and polymerizing the monomer or monomer mixture to produce the polymer of a N-vinyl carboxamide. The polymers resulting therefrom may be hydrolyzed to provide polymers containing vinyl amine units. Also disclosed herein is an apparatus suitable for producing the polymers.
    Type: Grant
    Filed: July 19, 2016
    Date of Patent: November 19, 2019
    Assignee: BASE SE
    Inventors: Christiane Lange, Hugo Vale, Hans-Joachim Haehnle, Oliver Soetje
  • Patent number: 10479849
    Abstract: A propylene-based polymer resin is characterized by a low volatile emission signature. For example, the propylene-based polymer resin may have a volatile organic compound content no greater than 125 ppm, a semi-volatile organic compound content no greater than 500 ppm, and a C36 oligomeric content no greater than 250 ppm.
    Type: Grant
    Filed: November 2, 2016
    Date of Patent: November 19, 2019
    Assignee: BRASKEM AMERICA, INC.
    Inventors: Jeffrey Salek, Mark Chappell, Bryan Dawson
  • Patent number: 10465023
    Abstract: The invention provides a process to form an ethylene-based polymer, and said ethylene-based polymer, said process comprising polymerizing a reaction mixture comprising ethylene and at least the following A) and B): A) a Rheology Modifying Agent (RMA) selected from the following i) through v), as described herein; B) at least one comonomer selected from the following a) through c), as described herein.
    Type: Grant
    Filed: May 9, 2016
    Date of Patent: November 5, 2019
    Assignee: Dow Global Technologies LLC
    Inventor: John O. Osby
  • Patent number: 10442881
    Abstract: Disclosed herein are ethylene-based polymers generally characterized by a Mw ranging from 70,000 to 200,000 g/mol, a ratio of Mz/Mw ranging from 1.8 to 20, an 1B parameter ranging from 0.92 to 1.05, and an ATREF profile characterized by one large peak. These polymers have the dart impact, tear strength, and optical properties of a metallocene-catalyzed LLDPE, but with improved processability, melt strength, and bubble stability, and can be used in blown film and other end-use applications.
    Type: Grant
    Filed: May 8, 2018
    Date of Patent: October 15, 2019
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Mark L. Hlavinka, Chung Ching Tso, Yongwoo Inn, Deloris R. Gagan, Randy S. Muninger
  • Patent number: 10377853
    Abstract: A process to prepare a polyester polymer composition comprising a polyester polymer having furanic units is disclosed. The process comprises a step of ring-opening polymerization of a cyclic polyester oligomer, which comprises residue of furandicarboxylic acid and a diol, in the presence of a catalyst in order to yield a polyester polymer having furanic units. The polyester polymer composition obtainable by the process, wherein the polyester polymer composition comprises a polyester polymer having furanic units and a cyclic polyester oligomer in a concentration of less than 5 wt % of the composition. The use of the polyester polymer composition in extrusion, injection molding, or blow molding are also disclosed.
    Type: Grant
    Filed: April 4, 2017
    Date of Patent: August 13, 2019
    Assignee: Sulzer Chemtech AG
    Inventors: Liborio Ivano Costa, Philip Nising, Francesca Tancini, David Pfister, Giuseppe Storti, Massimo Morbidelli
  • Patent number: 10362922
    Abstract: A device for the dry cleansing of surfaces to remove particulates contains triboelectrically chargeable component(s) of an organic polymer material containing uniformly distributed finely divided silicone polymer particles.
    Type: Grant
    Filed: March 3, 2016
    Date of Patent: July 30, 2019
    Assignee: Wacker Chemie AG
    Inventor: Frank Achenbach
  • Patent number: 10351671
    Abstract: The present invention relates to a method for producing semi-aromatic copolyamides with a high diamine excess in the reaction batch.
    Type: Grant
    Filed: June 11, 2014
    Date of Patent: July 16, 2019
    Assignee: BASF SE
    Inventors: Axel Wilms, Christian Schmidt, Florian Richter, Joachim Clauss, Gad Kory, Stefan Schwiegk, Arnold Schneller
  • Patent number: 10344101
    Abstract: A system and method for a polyolefin reactor temperature control system having a first reactor temperature control path, a second reactor temperature control path, and a shared temperature control path. The shared temperature control path is configured to combine and process coolant return streams, and to provide coolant supply for the first reactor temperature control path and the second reactor temperature control path.
    Type: Grant
    Filed: February 10, 2017
    Date of Patent: July 9, 2019
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Timothy O. Odi, Ralph Romig, Anurag Gupta
  • Patent number: 10308729
    Abstract: A process for separating components of a reactor off gas is provided. A related reactor system is also provided. The reactor system may include a high pressure tubular reactor and/or an autoclave reactor and may be used for the production polyolefin polymers.
    Type: Grant
    Filed: April 5, 2016
    Date of Patent: June 4, 2019
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventor: Paul J. Clymans
  • Patent number: 10301405
    Abstract: Disclosed herein are a polypropylene with narrow molecular weight distribution and a process for preparing the same in a reactor using a Ziegler-Natta catalyst.
    Type: Grant
    Filed: October 30, 2013
    Date of Patent: May 28, 2019
    Assignees: Beijing Research Institute of Chemical Industry, China Petroleum & Chemical Corp, China Petroleum & Chemical Corporation
    Inventors: Liangshi Wang, Luqiang Yu, Shijun Zhang, Jinliang Qiao, Meifang Guo, Zhichao Yang, Jianjun Yin, Honghong Huang, Liping Hou, Jianfang Sheng
  • Patent number: 10273318
    Abstract: The invention provides a process to prepare an ethylene-based polymer, said process comprising polymerizing ethylene in the presence of at least one initiator system selected from the following: a) class 1 initiator system, b) class 2 initiator system, c) class 3 initiator system, or d) a combination thereof; and at a inlet pressure (P2) greater than, or equal to, 1000 Bar (100 MPa); and in a reactor system comprising at least one hyper compressor and a reactor configuration comprising at least one reactor, which comprises at least one reaction zone; and wherein the inlet pressure (P2) is reduced by at least 200 Bar, as compared to a similar polymerization, in the same reactor system, except it is operated at a higher inlet pressure (P1), and at a different hyper compressor throughput, and at a different maximum temperature for at least one reaction zone, and optionally, at a different amount of CTA system fed to the reactor configuration; and wherein, for the process, the “Ratio of total reactor consumption
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: April 30, 2019
    Assignee: Dow Global Technologies LLC
    Inventors: Cornelis J F Hosman, Otto J. Berbee, Sergio E. Goncalves, Nhi Dang
  • Patent number: 10266557
    Abstract: Catalyst systems and methods for making and using the same are disclosed. In an example, a method of synthesizing a monocyclopentadienyl compound is provided. The method includes melting a di-cyclopentadienyl compound including the following structure: (A). As used herein, M is hafnium or zirconium. Each R is independently an H, a hydrocarbyl group, a substituted hydrocarbyl group, a heteroatom group. Each X is a leaving group selected from a halogen or a heteroatom group. A reaction melt is formed by adding a metal salt including the following structure: (B). A monocyclopentadienyl compound is deposited from a vapor formed over the reaction melt, wherein the monocyclopentadienyl compound includes the following structure: (C).
    Type: Grant
    Filed: April 14, 2016
    Date of Patent: April 23, 2019
    Assignee: Univation Technologies, LLC
    Inventor: C. Jeff Harlan
  • Patent number: 10240027
    Abstract: Use of a stable indole-nitroxide radical as a stabilizer and/or inhibitor for resin mixtures and reactive resin mortars is described on the basis of radically curable compounds. Resin mixtures and reactive resin mortars may be made stable in storage very effectively using the indole nitroxide radical and the pot life of mortar compositions can be adjusted in a targeted manner.
    Type: Grant
    Filed: June 5, 2018
    Date of Patent: March 26, 2019
    Assignee: Hilti Aktiengesellschaft
    Inventors: Michael Leitner, Armin Pfeil
  • Patent number: 10167354
    Abstract: A copolymer of ethylene with silane groups containing comonomer that is produced in a high pressure radical polymerization process comprising the steps of: (a) compressing ethylene together with the silane groups containing comonomer under pressure in a compressor, wherein a compressor lubricant is used for lubrication, (b) polymerizing ethylene together with the silane groups containing comonomer in a polymerization zone, (c) separating the obtained ethylene from the unreacted products and recovering the separated ethylene copolymer in a recovery zone, wherein in step a) the compressor lubricant comprises a mineral oil and ethylene copolymer has a silane groups containing comonomer content of 0.5 to 3 wt % and an MFR2 of 0.3 to 10 g/10 min. The co-polymer of ethylene with silane groups containing comonomer can be used.
    Type: Grant
    Filed: November 25, 2015
    Date of Patent: January 1, 2019
    Assignee: BOREALIS AG
    Inventors: Thomas Hjertberg, Lars Lindgren, Lena Lindbom, Roger Carlsson
  • Patent number: 10087286
    Abstract: Crosslinkable polycarbonate resins having improved properties are disclosed. The crosslinkable polycarbonate resins are formed from a reaction of at least a benzophenone, a first dihydroxy chain extender, and a carbonate precursor, and may include a second dihydroxy chain extender as well.
    Type: Grant
    Filed: June 19, 2015
    Date of Patent: October 2, 2018
    Assignee: SABIC GLOBAL TECHNOLOGIES B.V.
    Inventors: James Franklin Hoover, Peter Johnson, Amanda Marie Flores, Jean-Francois Morizur
  • Patent number: 10059786
    Abstract: There are disclosed an apparatus and a method for selectively preparing a high reactivity polybutene, a midrange reactivity polybutene and a non-reactive polybutene in a single plant. The apparatus for selectively preparing a reactive polybutene and a non-reactive polybutene, comprises: a reactive polybutene polymerization catalyst feeder for polymerization of the reactive polybutene; a non-reactive polybutene polymerization catalyst feeder for polymerization of the non-reactive polybutene; and a reactor for polymerizing a reactant including isobutene into polybutene, wherein the reactive polybutene polymerization catalyst feeder provides a catalyst to yield the reactive polybutene; and the non-reactive polybutene polymerization catalyst feeder provides a catalyst to yield the non-reactive polybutene.
    Type: Grant
    Filed: May 15, 2014
    Date of Patent: August 28, 2018
    Assignee: DAELIM INDUSTRIAL CO., LTD.
    Inventors: Myeong Seok Kim, Min Sup Park, Hyung Jae Seo, Se Hyun Lee
  • Patent number: 10046306
    Abstract: A treater regeneration system in a polyolefin production system, the treater regeneration system comprising an off-line treater receiving a first portion of a regenerating stream and regenerating a desiccant in the off-line treater to yield a regenerating effluent stream, where the regenerating stream comprises a regenerating medium, and where the regenerating effluent stream comprises the regenerating medium, water and an impurity; a decanter receiving at least a portion of the regenerating effluent stream to yield the regenerating stream and a water stream, wherein the water stream comprises the water; and a stripper receiving a second portion of the regenerating stream to yield an impurity stream and a process recycle stream, wherein the impurity stream comprises at least a portion of the impurity, and wherein the process recycle stream comprises the regenerating medium of the second portion of the regenerating stream.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: August 14, 2018
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Ralph W. Romig, Timothy O. Odi, Jennifer F. Drew
  • Patent number: 10035864
    Abstract: Disclosed herein are methods and systems for purging a polymer product of volatiles. The methods and systems are particularly useful in the purging of a polyethylene polymer product produced in a fluidized bed reactor.
    Type: Grant
    Filed: September 7, 2016
    Date of Patent: July 31, 2018
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventor: David J. Sandell
  • Patent number: 10029230
    Abstract: Olefin polymerization processes are described herein. The processes generally include circulating a slurry including an olefin monomer selected from C2-C12 olefin monomers, a liquid diluent selected from C3-C7 alkanes, catalyst and polyolefin particles under polymerization conditions within a loop reactor. In one or more specific embodiments, in operation, the process has a cavitation number of from 6 to 60 and the polymerization conditions include a polymerization temperature of from 38° C. to 121° C. and a polymerization pressure of from 27 bar to 50 bar. In other embodiments, the process has a Euler Number (Eu) of at least 5.
    Type: Grant
    Filed: January 24, 2017
    Date of Patent: July 24, 2018
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Scott E Kufeld, John D Hottovy
  • Patent number: 9975968
    Abstract: The invention relates to a system for the continuous polymerization of ?-olefin monomers comprising a reactor, a compressor, a cooling unit and an external pipe, wherein the reactor comprises a first outlet for a top recycle stream, wherein the system comprises apparatus, wherein the reactor comprises a first inlet for receiving a bottom recycle stream, wherein the reactor comprises an integral separator, wherein the first inlet of the integral separator is connected to a first outlet, wherein the first outlet for the liquid phase is connected to the second outlet of the reactor for the liquid phase, wherein the external pipe comprises a second inlet for receiving a solid polymerization catalyst, wherein the first outlet of the external pipe is connected to a second inlet of the reactor, wherein the reactor comprises a third outlet, wherein the system comprises a first inlet for receiving a feed.
    Type: Grant
    Filed: November 24, 2014
    Date of Patent: May 22, 2018
    Assignees: SABIC GLOBAL TECHNOLOGIES B.V., SAUDI BASIC INDUSTRIES CORPORATION
    Inventors: Yahya Banat, Jose Fernando Cevallos-Candau
  • Patent number: 9963523
    Abstract: A system and method for discharging a transfer slurry from a first polymerization reactor through a transfer line to a second polymerization reactor, the transfer slurry including at least diluent and a first polyethylene. A product slurry is discharged from the second polymerization reactor, the product slurry including at least diluent, the first polyethylene, and a second polyethylene. The velocity, pressure drop, or pressure loss due to friction in the transfer line is determined, and a process variable adjusted in response to the velocity, pressure drop, or pressure loss not satisfying a specified value.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: May 8, 2018
    Assignee: CHEVRON PHILLIPS CHEMICAL COMPANY, LP
    Inventors: Maruti Bhandarkar, Elizabeth Ann Benham, Rebecca A. Gonzales, Scott E. Kufeld, Joel A. Mutchler, Catherine M. Gill, Thanh T. Nguyen, Timothy O. Odi
  • Patent number: 9932454
    Abstract: The present disclosure relates to a polymer material comprising mesopores extending between melamine-formaldehyde co-polymer nano-particles and wherein micropores extend within the co-polymer nano-particles, methods of producing the same and uses thereof.
    Type: Grant
    Filed: December 18, 2016
    Date of Patent: April 3, 2018
    Assignee: Agency for Science, Technology and Research
    Inventors: Yugen Zhang, Jackie Y. Ying, Mei Xuan Tan
  • Patent number: 9840580
    Abstract: Disclosed is a process for manufacturing copolyether ester polyol comprising: (1) providing feedstock comprising polytetramethylene ether glycol having a number average molecular weight of 350 g/mol or less and an oligomeric cyclic ether content of 4.0% by weight or more and a diacid composition selected from alpha-omega alkanedioic acids of formula HO2C—(CH2)n—CO2H, where n is from 2 through 16 to a reaction zone maintained at reaction conditions to produce a crude polyol product; (2) feeding the crude polyol product of step (1) to a separation zone at separation conditions to produce a first separation product having an oligomeric cyclic ether content of 2.0% by weight or greater, and a second separation product comprising copolyether ester polyol having an oligomeric cyclic ether content of less than 2.0% by weight; and (3) recovering the second separation product.
    Type: Grant
    Filed: January 5, 2015
    Date of Patent: December 12, 2017
    Assignee: INVISTA North America S.a r.l.
    Inventors: Richard P. Beatty, Qun Sun
  • Patent number: 9790290
    Abstract: An olefin polymerization process comprising polymerizing olefins in gas phase in a fluidized bed in the presence of an olefin polymerization catalyst in a polymerization reactor having a vertical body; a generally conical downwards tapering bottom zone; a generally cylindrical middle zone having a height to diameter ratio L/D of at least 4, above and connected to said bottom zone; and a generally conical upwards tapering top zone above and connected to said middle zone wherein (i) fluidization gas is introduced to the bottom zone of the reactor from where it passes upwards through the reactor; (ii) the fluidization gas is withdrawn from the top zone of the reactor, filtered, compressed, cooled and returned into the bottom zone of the reactor; (iii) a fluidized bed is formed within the reactor where the growing polymer particles are suspended in the upwards rising gas stream; and (iv) there is no fluidization grid in the reactor; characterized in that the gas velocity is maintained in the reactor such that NBr
    Type: Grant
    Filed: February 27, 2015
    Date of Patent: October 17, 2017
    Assignee: Borealis AG
    Inventors: Vasileios Kanellopoulos, Apostolos Krallis, Mohammad Al-Haj Ali, Ravindra Tupe
  • Patent number: 9765165
    Abstract: A process for the preparation of a polyolefin in a slurry loop reactor provided with settling legs may include introducing olefin reactants, diluents, and polymerization catalyst into the reactor while circulating. The process may include polymerizing the olefin reactants to produce a slurry, continuously withdrawing the slurry, via the settling legs, and transferring withdrawn solid olefin polymer particles to a recovery section. Each settling leg may have an inlet connected to the reactor and an outlet connected to the recovery section. At least one settling leg is continuously open, allowing continuous withdrawal of slurry. Each outlet of the settling legs may be connected to the recovery section by a conduit provided with a pressure control device. The pressure in the reactor may be controlled by operating the pressure control device.
    Type: Grant
    Filed: January 21, 2014
    Date of Patent: September 19, 2017
    Assignee: TOTAL RESEARCH & TECHNOLOGY FELUY
    Inventors: Louis Fouarge, Annelies Horre, Geert Nauwelaerts, Rudi Tanghe, Johan Janssens, Steven Beuckelaers, Marc Richet, Pascal Wilderiane
  • Patent number: 9718948
    Abstract: A reactor system including an enclosed pressure relief system and/or a control system. The enclosed pressure relief system including a slurry separation system communicatively coupled with a pressure relief valve coupled to a loop reactor such that activation of the pressure relief valve results in discharge of a slurry from the loop reactor to the slurry separation system, wherein the slurry separation system is capable of separating solid and liquid components from gas components of the slurry and transmitting the gas components to a flare via a flare header.
    Type: Grant
    Filed: June 11, 2015
    Date of Patent: August 1, 2017
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: John D. Hottovy, Richard Peacock
  • Patent number: 9637572
    Abstract: The invention relates to a process for the continuous polymerization of one or more a-olefin monomers of which at least one is ethylene or propylene comprising the steps of: (1) feeding the one or more a-olefins to a vertically extended reactor suitable for the continuous fluidized bed polymerization of one or more a-olefin monomers of which at least one is ethylene or propylene, which reactor is operable in condensed mode, wherein the reactor comprises a distribution plate and an integral gas/liquid separator located below the distribution plate, (2) withdrawing the polyolefin from the reactor (3) withdrawing fluids from the top of the reactor, (4) cooling the fluids to below their dew point, resulting in a bottom recycle stream, (5) introducing the bottom recycle stream under the distribution plate, (6) separating at least part of the liquid from the bottom recycle stream using the integral separator to form a liquid phase and a gas/liquid phase, (7) feeding the liquid phase to an external pipe, (8) adding
    Type: Grant
    Filed: November 24, 2014
    Date of Patent: May 2, 2017
    Assignees: SABIC GLOBAL TECHNOLOGIES B.V., SAUDI BASIC INDUSTRIES CORPORATION
    Inventors: Yahya Banat, Jose Fernando Cevallos-Candau
  • Patent number: 9631051
    Abstract: An apparatus for synthesis of a polymer with separation of a gaseous substance comprises a reaction space having an essentially circular cylindrical upper section which is bounded by two circular faces and one shell face and has a longitudinal cylinder axis, and a lower section, an inlet orifice disposed in a circular face or the shell face of the upper section, a first outlet orifice disposed in a wall of the lower section, a second outlet orifice disposed in the shell face of the upper section opposite the first outlet orifice, and a removal device which is disposed so as to be rotatable about the longitudinal cylinder axis and is in contact with both circular faces and the shell face.
    Type: Grant
    Filed: June 11, 2014
    Date of Patent: April 25, 2017
    Assignee: BASF SE
    Inventors: Ning Zhu, Achim Stammer, Joachim Clauss, Gad Kory
  • Patent number: 9631035
    Abstract: The present disclosure relates to a process for separating polymeric and gaseous components of a reaction mixture obtained by high-pressure polymerization of ethylenically unsaturated monomers in the presence of free-radical polymerization initiators into in a gaseous fraction and a liquid fraction, wherein the separation is carried out at a pressure of from 15 MPa to 50 MPa and a temperature of from 120° C. to 300° C. in a separation vessel which has a vertically arranged cylindrical shape with a ratio of length to diameter L/D of from 4 to 10 and which is equipped with an inlet pipe which extends vertically from the top into the separation vessel; and the ratio of the inner diameter of the inlet pipe at its lower end and the inner diameter of the separating vessel in its cylindrical part is in the range of from 0.2 to 0.4.
    Type: Grant
    Filed: December 3, 2014
    Date of Patent: April 25, 2017
    Assignee: Basell Polyolefine GmbH
    Inventors: Georg Groos, Erich Neumann, Michael Deuerling, Dieter Littmann
  • Patent number: 9624316
    Abstract: A system and method for a polyolefin reactor temperature control system having a first reactor temperature control path, a second reactor temperature control path, and a shared temperature control path. The shared temperature control path is configured to combine and process coolant return streams, and to provide coolant supply for the first reactor temperature control path and the second reactor temperature control path.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: April 18, 2017
    Assignee: CHEVRON PHILLIPS CHEMICAL COMPANY LP
    Inventors: Timothy O. Odi, Anurag Gupta, Ralph W. Romig
  • Patent number: 9611348
    Abstract: An ethylene copolymer, a Group 4 transition metal catalyst compound, and methods for polymerization using such a compound, said compound represented by the formula: (L)p(R?)zT(Cp)(A)MX2, where M is a Group 4 metal; z is 0 to 8; p is 1 to 3; X is an anionic leaving group; T is a bridging group; R1 to R4 are hydrogen, a hydrocarbyl group, a substituted hydrocarbyl group, aryl group, substituted aryl group, or a heteroatom-containing group (where adjacent R groups can form rings); R? is hydrogen, a C1 to C10 alkyl group, a C6 to C24 aryl group, or a C7 to C40 alkylaryl group; and L is a heteroatom or heteroatom-containing group bound to T, Cp is a cyclopentadienyl ring substituted with 0 to 4 substituent groups (where adjacent groups can form C4 to C20 rings); A is Cp or (JS?z*-1-y), where J is a Group 15 or 16 element; S? is a hydrocarbyl, substituted hydrocarbyl, or heteroatom; z* is 2 or 3, and y is 0 or 1, is provided.
    Type: Grant
    Filed: April 9, 2014
    Date of Patent: April 4, 2017
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Ian C. Stewart, Steven D. Brown, Crisita Carmen H. Atienza, David T. Harris, Aaron M. Hollas
  • Patent number: 9593189
    Abstract: In an embodiment, a polymerization process comprises circulating, with a pump, a reaction mixture slurry in a polymerization loop reactor during a polymerization process, detecting a pressure change in the reaction mixture slurry downstream of the pump, generating, by a pressure controller, a takeoff valve actuation signal for a takeoff valve based on the pressure change, generating, by the pressure controller, a correction to the takeoff valve actuation signal, generating, by the pressure controller, a time delay for the correction, applying the correction to the takeoff valve actuation signal to generate a corrected takeoff valve actuation signal, providing the corrected takeoff valve actuation signal to the takeoff valve after the time delay, and adjusting a position of the takeoff valve in response to providing the corrected takeoff valve actuation signal. The reactor pressure is based on the takeoff valve position.
    Type: Grant
    Filed: April 29, 2016
    Date of Patent: March 14, 2017
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: John D. Hottovy, Scott E. Kufeld