Patents by Inventor Zengquan Qin

Zengquan Qin has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240093497
    Abstract: A method of installing a roof system, the method comprising (i) providing a first membrane panel including a polymeric planar body having a top planar surface and a bottom planar surface; (ii) securing the first membrane panel to a roof substrate; (iii) providing a second membrane panel including a polymeric planar body having a top planar surface and a bottom planar surface; (iv) positioning the second membrane panel adjacent to the first membrane panel so that the second membrane panel overlaps the first membrane panel in a lap region; (v) applying a primer composition to the top planar surface of the first membrane panel in the lap region to form a first primed surface; (vi) optionally applying a primer composition to the bottom planar surface of the second membrane panel in the lap region to form a second primed surface; (vii) applying an adhesive to at least one of the first primed surface or the second primed surface; and (viii) seaming the first membrane panel to the second membrane panel with the adhe
    Type: Application
    Filed: January 17, 2022
    Publication date: March 21, 2024
    Inventors: Zengquan QIN, Jiansheng TANG, Dharamdeep JAIN
  • Patent number: 11807704
    Abstract: Disclosed herein are a functionalized diene monomer-containing polymer containing first and second functionalizing groups, processes for preparing the functionalized polymer, and rubber compositions containing the functionalized polymer. The functionalized polymer contains polymer chains comprises of at least one conjugated diene monomer optionally in combination with at least one vinyl aromatic monomer wherein each polymer chain is functionalized at its chain end with at least the first functionalizing group and is coupled via the first functionalizing group to the second functionalizing group.
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: November 7, 2023
    Assignee: Bridgestone Corporation
    Inventors: Yuan-Yong Yan, Zengquan Qin, Koichi Saito, Rita E. Cook
  • Publication number: 20230134110
    Abstract: Embodiments of the present disclosure are directed to functionalized copolymers produced by copolymerization of at least one conjugated diolefin monomer and at least one vinyl monomer, the functionalized copolymer comprising at least one functional group having silica reactive moieties, wherein the functionalized copolymer has a degree of hydrogenation of 75% to 98 mol % as measured using proton nuclear magnetic resonance spectroscopy (1H NMR).
    Type: Application
    Filed: December 21, 2017
    Publication date: May 4, 2023
    Applicant: Bridgestone Corporation
    Inventors: Michael R. Beaulieu, Noriaki Yukimura, Zengquan Qin
  • Publication number: 20220411669
    Abstract: A method of installing a roof system includes providing a first membrane composite; adhesively securing the first membrane composite to a roof surface through a UV-cured pressure-sensitive adhesive layer; providing a second membrane composite; adhesively securing the second membrane composite to the roof surface through a UV-cured pressure-sensitive adhesive layer, where the second membrane composite is positioned adjacent to and partially overlapping a lap area of the first membrane composite; and adhesively securing the second membrane composite to a first planar surface of the first membrane composite along a primer layer through the UV-cured pressure-sensitive adhesive layer disposed on the second membrane composite.
    Type: Application
    Filed: September 14, 2020
    Publication date: December 29, 2022
    Inventors: Dharamdeep JAIN, Jiansheng TANG, Michael J. HUBBARD, Zengquan QIN
  • Patent number: 11512148
    Abstract: Vulcanizates with desirable properties such as reduced hysteresis and improved wear resistance can be obtained from a composition that includes particulate filler(s) and at least two types of terminally functionalized polymers. One type of polymer has a heterocyclic moiety at a terminus, while another type has at one of its termini an aryl group that includes at least two hydroxyl substituents. The functionalized polymers are provided by reacting terminally active polymers with, respectively, a heterocyclic nitrile and a compound that includes an aryl group having at least two directly bonded OGp substituents, where Gp is a protecting group, and a substituent that can react with the active terminus. The protecting groups can be removed so as to provide a terminal moiety that includes an aryl group having at least two directly bonded hydroxyl groups.
    Type: Grant
    Filed: December 26, 2018
    Date of Patent: November 29, 2022
    Assignee: Bridgestone Corporation
    Inventor: Zengquan Qin
  • Publication number: 20220185931
    Abstract: Disclosed herein are a modified high cis polydiene polymer, processes for preparing the modified high cis polydiene polymer, and tire rubber compositions containing the modified high cis polydiene polymer. The processes make use of a functionalizing compound of formula I or formula II and a coupling agent to prepare the modified high cis polydiene polymer from a quantity of conjugated diene monomer polymerized using a lanthanide-based catalyst system. The modified high cis polydiene polymer includes at least one polymer chain having a residue from the functionalizing compound and a residue from the coupling agent and can be utilized in tire rubber compositions in combination with other ingredients such as fillers.
    Type: Application
    Filed: March 10, 2020
    Publication date: June 16, 2022
    Applicant: Bridgestone Corporation
    Inventors: Zengquan Qin, Yuan-Yong Yan
  • Patent number: 11168160
    Abstract: Embodiments of 1,4-polybutadiene rubber compositions useful at low temperatures are provided, wherein the 1,4-polybutadiene incorporated therein comprises a cis content of at least 85 to about 92%, a vinyl content of at about 1% to about 5%, and a trans content of about 3 to about 12%, and wherein the 1,4-polybutadiene has an enthalpy of melting ?Hm of about 5 to about 25 J/g° C. as measured via differential scanning calorimetry (DSC).
    Type: Grant
    Filed: April 30, 2020
    Date of Patent: November 9, 2021
    Assignee: Bridgestone Corporation
    Inventors: Hyeonjae Kim, Joshua S. Dickstein, Dennis R. Brumbaugh, Zengquan Qin
  • Publication number: 20210340306
    Abstract: Embodiments of the present disclosure are directed to functionalized copolymers produced by copolymerization of at least one conjugated diolefin monomer and at least one vinyl monomer, the functionalized copolymer including at least one functional group having silica reactive moieties, wherein the functionalized copolymer has a degree of hydrogenation of 75% to 98 mol % as measured using proton nuclear magnetic resonance spectroscopy (1H NMR). In one or more embodiments, the silane modifier may include an oxygen-containing moiety, wherein the oxygen atom of the oxygen-containing moiety may not be directly bonded with the silicon atom.
    Type: Application
    Filed: June 20, 2019
    Publication date: November 4, 2021
    Applicant: Bridgestone Corporation
    Inventors: Noriaki Yukimura, Michael R. Beaulieu, Zengquan Qin, Jeffrey M. Magistrelli, Walter A. Salamant, Ryan J. Hue, Shu Wang, Laura S. Kocsis
  • Patent number: 11161927
    Abstract: Disclosed herein are a functionalized diene monomer-containing polymer containing first and second functionalizing groups, processes for preparing the functionalized polymer, and rubber compositions containing the functionalized polymer. The functionalized polymer contains polymer chains comprises of at least one conjugated diene monomer optionally in combination with at least one vinyl aromatic monomer wherein each polymer chain is functionalized at its chain end with at least the first functionalizing group and is coupled via the first functionalizing group to the second functionalizing group.
    Type: Grant
    Filed: August 3, 2020
    Date of Patent: November 2, 2021
    Assignee: Bridgestone Corporation
    Inventors: Yuan-Yong Yan, Zengquan Qin, Koichi Saito
  • Patent number: 11124591
    Abstract: Metallic complexes having indenyl ligands can be used as an ingredient of a catalyst system. The catalyst system can be used in polymerizations of ethylenically unsaturated hydrocarbon monomers that include both olefins and polyenes. Embodiments of the catalyst system can provide interpolymers that include polyene mer and from 40 to 75 mole percent ethylene mer, with a plurality of the ethylene mer being randomly distributed. The catalyst system also can be used in solution polymerizations conducted in C5-C12 alkanes, yielding interpolymers that include at least 10 mole percent ethylene mer.
    Type: Grant
    Filed: September 30, 2019
    Date of Patent: September 21, 2021
    Assignee: Bridgestone Corporation
    Inventors: Joshua P. Abell, Zengquan Qin
  • Patent number: 11124589
    Abstract: The cis-1,4 mer content of conjugated diene mer in polymers can be increased by adding any of a class of morpholine compounds to a catalyst composition that includes a lanthanide metal atom.
    Type: Grant
    Filed: October 10, 2015
    Date of Patent: September 21, 2021
    Assignee: Bridgestone Corporation
    Inventors: Zengquan Qin, James H. Pawlow, Christine M. Rademacher
  • Patent number: 11117987
    Abstract: Vulcanizates with desirable properties can be obtained from compounds incorporating polymers that include hydroxyl group-containing aryl functionalities. The functionalities can be incorporated by using any or all of appropriate initiators, monomers and optional terminating compounds. Such polymers exhibit excellent interactivity with both conventional and non-conventional fillers.
    Type: Grant
    Filed: March 10, 2019
    Date of Patent: September 14, 2021
    Assignee: Bridgestone Corporation
    Inventors: Xiao-Dong Pan, Zengquan Qin, Yuan-Yong Yan, Dennis R. Brumbaugh
  • Patent number: 11059920
    Abstract: A method for producing a polydiene, the method comprising the step of: polymerizing conjugated diene monomer with a lanthanide-based catalyst system in the presence of a hydrocarbyloxysilane.
    Type: Grant
    Filed: July 28, 2017
    Date of Patent: July 13, 2021
    Assignee: Bridgestone Corporation
    Inventor: Zengquan Qin
  • Publication number: 20210171676
    Abstract: Disclosed herein are a functionalized diene monomer-containing polymer containing first and second functionalizing groups, processes for preparing the functionalized polymer, and rubber compositions containing the functionalized polymer. The functionalized polymer contains polymer chains comprises of at least one conjugated diene monomer optionally in combination with at least one vinyl aromatic monomer wherein each polymer chain is functionalized at its chain end with at least the first functionalizing group and is coupled via the first functionalizing group to the second functionalizing group.
    Type: Application
    Filed: December 13, 2018
    Publication date: June 10, 2021
    Applicant: Bridgestone Corporation
    Inventors: Yuan-Yong Yan, Zengquan Qin, Koichi Saito, Rita E. Cook
  • Patent number: 11028195
    Abstract: Vulcanizates with desirable properties can be obtained from compounds incorporating polymers that include hydroxyl group-containing aryl functionalities. The functionalities can be incorporated by using any or all of appropriate initiators, monomers and terminating compounds. Such polymers exhibit excellent interactivity with both conventional and non-conventional fillers.
    Type: Grant
    Filed: March 10, 2019
    Date of Patent: June 8, 2021
    Assignee: Bridgestone Corporation
    Inventors: Xiao-Dong Pan, Zengquan Qin, Yuan-Yong Yan, Dennis R. Brumbaugh, Jason T. Poulton
  • Patent number: 10882933
    Abstract: Catalyst compositions that include a vanadium compound can be used to polymerize ethylenically unsaturated hydrocarbon monomers that include at least one polyene and at least one C?2#191-C?8#191 ?-olefin, with the presence of a highly halogenated ketone increasing the activity of the catalyst composition while not negatively impacting the relative percentage (molar) of olefin mer incorporation.
    Type: Grant
    Filed: August 14, 2016
    Date of Patent: January 5, 2021
    Assignee: Bridgestone Corporation
    Inventor: Zengquan Qin
  • Publication number: 20200362080
    Abstract: Disclosed herein are a functionalized diene monomer-containing polymer containing first and second functionalizing groups, processes for preparing the functionalized polymer, and rubber compositions containing the functionalized polymer. The functionalized polymer contains polymer chains comprises of at least one conjugated diene monomer optionally in combination with at least one vinyl aromatic monomer wherein each polymer chain is functionalized at its chain end with at least the first functionalizing group and is coupled via the first functionalizing group to the second functionalizing group.
    Type: Application
    Filed: August 3, 2020
    Publication date: November 19, 2020
    Applicant: Bridgestone Corporation
    Inventors: Yuan-Yong Yan, Zengquan Qin, Koichi Saito
  • Publication number: 20200255558
    Abstract: Embodiments of 1,4-polybutadiene rubber compositions useful at low temperatures are provided, wherein the 1,4-polybutadiene incorporated therein comprises a cis content of at least 85 to about 92%, a vinyl content of at about 1% to about 5%, and a trans content of about 3 to about 12%, and wherein the 1,4-polybutadiene has an enthalpy of melting ?Hm of about 5 to about 25 J/g° C. as measured via differential scanning calorimetry (DSC).
    Type: Application
    Filed: April 30, 2020
    Publication date: August 13, 2020
    Applicant: Bridgestone Corporation
    Inventors: Hyeonjae Kim, Joshua S. Dickstein, Dennis R. Brumbaugh, Zengquan Qin
  • Patent number: 10730985
    Abstract: Disclosed herein are a functionalized diene monomer-containing polymer containing first and second functionalizing groups, processes for preparing the functionalized polymer, and rubber compositions containing the functionalized polymer. The functionalized polymer contains polymer chains comprises of at least one conjugated diene monomer optionally in combination with at least one vinyl aromatic monomer wherein each polymer chain is functionalized at its chain end with at least the first functionalizing group and is coupled via the first functionalizing group to the second functionalizing group.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: August 4, 2020
    Assignee: Bridgestone Corporation
    Inventors: Yuan-Yong Yan, Zengquan Qin, Koichi Saito
  • Patent number: 10640589
    Abstract: Embodiments of 1,4-polybutadiene rubber compositions useful at low temperatures are provided, wherein the 1,4-polybutadiene incorporated therein comprises a cis content of at least 85 to about 92%, a vinyl content of at about 1% to about 5%, and a trans content of about 3 to about 12%, and wherein the 1,4-polybutadiene has an enthalpy of melting ?Hm of about 5 to about 25 J/g° C. as measured via differential scanning calorimetry (DSC).
    Type: Grant
    Filed: December 7, 2016
    Date of Patent: May 5, 2020
    Assignee: Bridgestone Corporation
    Inventors: Hyeonjae Kim, Joshua S. Dickstein, Dennis R. Brumbaugh, Zengquan Qin