Patents Examined by Caixia Lu
  • Patent number: 10851187
    Abstract: A metallocene catalyst compound can comprise a structure represented by formula (F-MC) below comprising a first cyclopentadienyl ring with carbon atoms directly connected with R1, R2, R4, and R5, and a second cyclopentadienyl ring with carbon atoms directly connected with R10, R11, R12, and R13, and a bridging group (BG) directly connecting the first and second cyclopentadienyl rings A catalyst system can include the metallocene compound, a non-coordinating anion type activator comprising a supported alumoxane or aluminum alkyl, and optionally a scavenger. A process for making a polymeric product can comprise: contacting a C2-C22 alpha-olefin feed with the catalyst system to obtain a polymerization reaction mixture; and obtaining a polymer product from the polymerization reaction mixture. A polymer product can be made by the process to exhibit at least an Mn from 7000 g/mol to 70000 g/mol and a PDI from 4.1 to 9.0.
    Type: Grant
    Filed: January 17, 2019
    Date of Patent: December 1, 2020
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Matthew W. Holtcamp, Subramaniam Kuppuswamy, Matthew S. Bedoya, Kevin A. Stevens
  • Patent number: 10844218
    Abstract: Moisture-curable resin compositions include a mixture of one or more polysilylated of ethers and one or more polyether monosilanes. The polyether monosilanes have one hydrolysable silane group per molecule, and the hydrolysable silane group has at least two hydrolysable substituents. The polyether monosilane is an effective plasticizer and viscosity reducer. Despite the presence of the polyether monosilane, the resins compositions cure to form cured sealants having useful tensile and elongation properties.
    Type: Grant
    Filed: October 12, 2016
    Date of Patent: November 24, 2020
    Assignee: Dow Global Technologies LLC
    Inventors: Qiuyun Xu, Amber Stephenson, William H. Heath, William A. Koonce
  • Patent number: 10836846
    Abstract: The present invention provides modified olefin polymerization catalyst, preparation method thereof, olefin polymerization catalyst system, use thereof and method of preparing polyolefin resin. The catalyst comprises an olefin polymerization catalyst and an organosilane, which is represented by a general formula R1mSiXn(OR2)k, where R1 is a C2-C20 alkyl group and a terminal of R1 has an ?-olefin double bond, a norbornene group, a cycloolefin group or a dicyclopentadiene group, X is a halogen element, R2 is a C1-C20 linear chain, branched chain or isomerized alkyl group, m is an integer from 1-3, n is an integer from 1-3, k is an integer within a range of 0-2, and m+n+k=4. High-performance polyolefin resins, including homopolymerized polyolefin resin with high melt and mechanical strength, polyolefin elastomer with high rubber phase content, and polyolefin elastomer with a rubber phase in a crosslinked structure, etc., can be obtained through polymerization with the catalyst.
    Type: Grant
    Filed: October 12, 2015
    Date of Patent: November 17, 2020
    Assignees: Institute of Chemistry, Chinese Academy of Sciences, University of Chinese Academy of Sciences
    Inventors: Jinyong Dong, Yawei Qin
  • Patent number: 10815317
    Abstract: The present invention provides a method for preparing an oligomer and a catalyst comprising a step of oligomerizing a polymerizable monomer containing an olefin in the presence of a catalyst, which comprises (A) a complex of a diimine compound and at least one metal selected from the group consisting of Group 8 elements, Group 9 elements and Group 10 elements, (B) a mixture of a pyridine diimine compound and an iron salt and/or an iron complex, (C) methylaluminoxane and/or a boron compound, and (D) an organoaluminum compound other than methylaluminoxane and/or an organozinc compound. The components (A), (B), (C) and (D) described above are respectively as defined in the present Description.
    Type: Grant
    Filed: February 20, 2017
    Date of Patent: October 27, 2020
    Assignee: ENEOS CORPORATION
    Inventors: Fuyuki Aida, Kazuo Tagawa
  • Patent number: 10815322
    Abstract: The present invention relates to a supported metallocene catalyst including a novel single metallocene compound having excellent polymerization activity, and a process for producing a polypropylene having excellent processability and broad molecular weight distribution using the same.
    Type: Grant
    Filed: October 11, 2017
    Date of Patent: October 27, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Jong Woo Park, Hye Kyung Lee, Byung Seok Kim, Sang Jin Jeon, Jae Youp Cheong, Hee Kwang Park
  • Patent number: 10774163
    Abstract: The ethylene/1-hexene copolymer according to the present invention has excellent processability and mechanical properties, and thus can be applied to various fields such as food containers.
    Type: Grant
    Filed: August 7, 2017
    Date of Patent: September 15, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Sung Min Lee, Yi Young Choi, Bog Ki Hong, Soon Ho Sun, Sun Mi Kim, Jin Young Park, Ki Soo Lee
  • Patent number: 10774160
    Abstract: The present invention relates to a supported hybrid catalyst system for ethylene slurry polymerization and a method for preparing ethylene polymer therewith. The supported hybrid catalyst system according to the present invention may exhibit high activity during ethylene slurry polymerization, and enables preparation of an ethylene polymer having a narrow molecular weight distribution but excellent processability.
    Type: Grant
    Filed: February 6, 2017
    Date of Patent: September 15, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Ye Jin Lee, Yi Young Choi, Ki Soo Lee, Se Young Kim, Sung Min Lee, Chang Woan Han, Soon Ho Sun
  • Patent number: 10766985
    Abstract: The present invention relates to an olefin polymer and a preparation method thereof. The olefin polymer exhibits excellent mechanical strength and high processability, and thus is expected to be utilized as a material for various products. Particularly, the olefin polymer can be stably produced into films by a melt-blowing process and thus is expected to be usefully used as a material for products prepared by a melt-blowing process.
    Type: Grant
    Filed: February 22, 2017
    Date of Patent: September 8, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Sol Cho, Sung Hyun Park, Oh Joo Kwon, Ki Soo Lee, Heon Yong Kwon, Dae Sik Hong, Myung Han Lee, Hyun Jee Kwon
  • Patent number: 10766988
    Abstract: The present disclosure relates to an ethylene/alpha-olefin copolymer having excellent processibility. The ethylene/alpha-olefin copolymer according to the present disclosure is excellent in both mechanical properties and processibility.
    Type: Grant
    Filed: November 2, 2017
    Date of Patent: September 8, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Soon Ho Sun, Yi Young Choi, Ki Soo Lee, Bog Ki Hong, Sung Hyun Park, Myung Han Lee, Sung Min Lee, Sun Mi Kim, Jin Young Park
  • Patent number: 10758456
    Abstract: Polymerizable compositions comprising a redox initiator system is disclosed. The redox initiator system comprises a photolabile transition metal complex that photolyzes and initiates the redox cycle. Dental compositions comprising dental resins and the photolabile redox initiator system are also described.
    Type: Grant
    Filed: October 6, 2016
    Date of Patent: September 1, 2020
    Assignee: 3M Innovative Properties Company
    Inventors: William H. Moser, Erik M. Townsend, Kathleen S. Shafer, Michael A. Kropp, Ross E. Behling, Jason D. Clapper
  • Patent number: 10759886
    Abstract: Disclosed are methods for the production of polymers, including random copolymers (RCPs), in single reactor gas or slurry phase polymerization processes, and polymer compositions produced therefrom. The methods enable polymers having low melting temperatures to be made in gas and slurry phase polymerization processes, where they conventionally could not be made in these processes due to stickiness and fouling problems in the reactor.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: September 1, 2020
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Lubin Luo, Jeanette M. Diop, Jian Yang, Sudhin Datta, Patrick Brant
  • Patent number: 10759879
    Abstract: An alkyl metalloxane compound and a method of producing the same are provided. The alkyl metalloxane compound includes one or more alkyl aluminoxane structural units, and one or more alkyl galloxane structural units per molecule. The method comprises reacting trialkyl gallium, trialkyl aluminum, and water.
    Type: Grant
    Filed: September 24, 2018
    Date of Patent: September 1, 2020
    Assignee: NICHIA CORPORATION
    Inventor: Masakazu Sakaguchi
  • Patent number: 10745549
    Abstract: According to an embodiment of the present invention, there is provided a method of preparing a rubber composition, which includes (a) synthesizing a living polymer by solution polymerization of a monomer mixture including a conjugated diene-based monomer in the presence of a first catalyst; (b) reacting some ends of the living polymer with a coupling agent; (c) reacting the remaining ends of the living polymer with an organotin halide compound to prepare an end-modified conjugated diene-based polymer solution; and (d) adding a second catalyst and a conjugated diene-based monomer to the end-modified conjugated diene-based polymer solution to induce solution polymerization.
    Type: Grant
    Filed: June 19, 2018
    Date of Patent: August 18, 2020
    Assignee: Korea Kumho Petrochemical Co., Ltd.
    Inventors: Jae Yun Kim, Yeong Min Jung
  • Patent number: 10730038
    Abstract: Disclosed herein is a catalyst compound represented by Formula (I) or Formula (II): M is a group 4 metal. Each of R1, R2, R3, R4, R5, R6, R7, R8, and R9 is independently hydrogen, or a C1-C50 substituted or unsubstituted hydrocarbyl, halocarbyl, silylcarbyl, alkoxyl, siloxyl, or one or more of R1 and R2, R2 and R3, R3 and R4, R5 and R6, R6 and R7, and R7 and R8 are joined to form cyclic a saturated or unsaturated ring. Each X is independently a halide or C1-C50 substituted or unsubstituted hydrocarbyl, hydride, amide, alkoxide, sulfide, phosphide, halide, or a combination thereof, or two Xs are joined together to form a metallocycle ring, or two Xs are joined to form a chelating ligand, a diene ligand, or an alkylidene. Also disclosed is a method for using the catalyst compound in a catalyst system to produce polyolefin polymers.
    Type: Grant
    Filed: September 6, 2017
    Date of Patent: August 4, 2020
    Assignee: ExxonMobil Chemical Patents, Inc.
    Inventors: Matthew W. Holtcamp, Matthew S. Bedoya, Subramaniam Kuppuswamy
  • Patent number: 10730984
    Abstract: The present invention relates to a modifier represented by Formula 1, a modified conjugated diene-based polymer having a high modification ratio which includes a modifier-derived functional group, and a method of preparing the polymer.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: August 4, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Su Hwa Kim, Hyo Jin Bae, Jeong Heon Ahn, Sung Ho Park, Soo Young Choi, Dong Hui Kim
  • Patent number: 10730965
    Abstract: The present invention relates to a process for preparing a solid catalyst component suitable for producing polyethylene and its copolymers, said process comprising the steps of: (a) contacting a dehydrated support having hydroxyl groups with a magnesium compound having the general formula MgR1R2; (b) contacting the product obtained in step (a) with modifying compounds (A) and/or (B) and/or (C), wherein: (A) is at least one oxygen and/or nitrogen comprising organic compound; (B) is a compound having the general formula R11f(R12O)gSiXh, (C) is a compound having the general formula (R13O)4M, and (c) contacting the product obtained in step (b) with a titanium halide compound having the general formula TiX4, wherein Ti is a titanium atom and X is a halide atom, wherein an organometallic compound is added either before step (a) and/or after step (c). The invention also relates to a solid catalyst component obtainable by said process.
    Type: Grant
    Filed: December 23, 2016
    Date of Patent: August 4, 2020
    Assignee: SABIC GLOBAL TECHNOLOGIES B.V.
    Inventors: Akhlaq Moman, Ian Blackmore
  • Patent number: 10730969
    Abstract: Provided is a solid polymethylaluminoxane composition which has higher activity when being used as a co-catalyst in olefin polymerization. The solid polymethylaluminoxane composition contains polymethylaluminoxane, trimethylaluminum, and Al2O3, wherein: (i) the aluminum content is in a range of 36-43 mass %; and (ii) the Al2O3 content is in a range of 0.001-10 mol % represented in terms of aluminum.
    Type: Grant
    Filed: November 22, 2016
    Date of Patent: August 4, 2020
    Assignee: Tosoh Finechem Corporation
    Inventors: Kentaro Sakai, Yujin Takemoto, Eiichi Kaji
  • Patent number: 10730971
    Abstract: A process for preparing a procatalyst for polymerization of olefins, comprising contacting a magnesium-containing support with a halogen-containing titanium compound, a first internal electron donor represented by Formula A, a second internal electron donor represented by Formula B, and an activator; wherein the molar ratio of the first internal donor to the second internal donor is between 0.01 and 0.7; wherein in Formula A each R80 group is independently a substituted or unsubstituted aromatic group; and R81, R82, R83, R84, R85, R86 and R87 are each independently selected from a hydrogen or a hydrocarbyl group; wherein in Formula B R51 and R52 are each independently selected from a hydrogen or a hydrocarbyl group; and R53 and R54 are each independently selected from hydrogen, a halide or a hydrocarbyl group.
    Type: Grant
    Filed: June 17, 2016
    Date of Patent: August 4, 2020
    Assignee: SABIC GLOBAL TECHNOLOGIES B.V.
    Inventors: Martin Alexander Zuideveld, Sergei Andreevich Sergeev, Vladimir Aleksandrovich Zakharov, Dafne Lise Steinfort
  • Patent number: 10730974
    Abstract: A gas-phase process for the homopolymerization or copolymerization of propylene with other olefins, including carrying out the polymerization in the presence of a catalyst system made from or containing: (a) a solid catalyst component made from or containing Mg, Ti, halogen, an electron donor selected from 1.3-diethers and an olefin polymer in a specific amount; (b) an aluminum alkyl compound and (c) an external electron donor (ED) compound, wherein components (b) and (c) being employed in amounts such that the Al/(ED) molar ratio ranges from about 2 to about 200.
    Type: Grant
    Filed: August 3, 2016
    Date of Patent: August 4, 2020
    Assignee: Basell Poliolefine Italia S.r.l.
    Inventors: Giampiero Morini, Massimo Covezzi, Tiziano Dall'occo, Dario Liguori, Fabrizio Piemontesi, Gianni Vitale
  • Patent number: 10730978
    Abstract: A polymer obtained by a solution polymerization process comprising within a range from 0.5 to 20 wt % of cyclic olefin derived units, within a range from 0 wt % to 15 wt % C4 to C12 ?-olefin derived units, the remainder being ethylene derived units; and having a Mw/Mn of less than 2.5; a weight average molecular weight (Mw) within a range from 80,000 to 300,000 g/mole; and a g? value of greater than 0.95. The polymer may be formed in a solution polymerization process comprising combining in a solution cyclic olefins, ethylene, hydrogen and optionally C4 to C12 ?-olefins with a single-site catalyst to form the polymer, wherein the single-site catalyst is most preferably selected from unsymmetrical Group 4 bis-bridged cyclopentadienyl metallocenes.
    Type: Grant
    Filed: March 27, 2018
    Date of Patent: August 4, 2020
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Yong Yang, Rhutesh K. Shah