Patents by Inventor Xiaorong Wang

Xiaorong Wang 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).

  • Interpolymers Containing Isobutylene And Diene Mer Units
    Publication number: 20140100334
    Abstract: This disclosure relates to a block interpolymer comprising at least one diene block and at least one butyl block, wherein the at least one butyl block comprises residue from a functionalizing agent on at least one end adjacent to the diene block(s). The disclosure also relates to methods of making such block interpolymers. Also disclosed is a rubber composition comprising: (a) a block interpolymer comprising at least one diene block and at least one butyl block, and (b) a filler, wherein said at least one butyl block comprises residue from a functionalizing agent on at least one end adjacent to said diene block(s).
    Type: Application
    Filed: August 19, 2013
    Publication date: April 10, 2014
    Applicant: Bridgestone Corporation
    Inventors: Xiaorong Wang, Yuan-Yong Yan
  • Polyhedral-modified polymer
    Patent number: 8623955
    Abstract: A macromolecule including a polymer and a polyhedral radical chemically bonded to a terminus of the polymer provides numerous processing and performance advantages. Further functionalization of this macromolecule also is described as being advantageous in certain circumstances. Methods of providing, functionalizing, and utilizing the macro-molecule also are provided.
    Type: Grant
    Filed: August 3, 2012
    Date of Patent: January 7, 2014
    Assignee: Bridgestone Corporation
    Inventors: Yuan-Yong Yan, Jason Poulton, Xiaorong Wang, Hao Wang, Michelle A. Cottrell
  • Disk-Like Nanoparticles
    Publication number: 20130261225
    Abstract: A disk-like nanoparticle includes a core layer that comprises a cross-linked multi-vinyl substituted aromatic hydrocarbon and a shell layer that comprises tri-block copolymer chains, each having a first, a second, and a third block. The first and third blocks of the tri-block copolymer chains comprise vinyl aromatic monomer units and are crosslinked with the core. The second block comprises conjugated diene monomer units and comprises a top and bottom axial surface of the disk-like nanoparticle. In the case of a nanoparticle having A-B-C tri-block copolymer chains, the third block comprises a top and bottom axial surface of the disk-like nanoparticle.
    Type: Application
    Filed: October 15, 2012
    Publication date: October 3, 2013
    Inventors: Xiaorong Wang, Victor J. Foltz, Yuan-Yong Yan, Pat Sadhukhan
  • Rubber compositions including metal-functionalized polyisobutylene derivatives and methods for preparing such compositions
    Patent number: 8546464
    Abstract: A composition includes a vulcanizable diene rubber, a silica filler, and a metal-functionalized polyisobutylene succinic anhydride derivative. In one embodiment the composition has a reduced amount of oil and may include no oil. A tire tread composition includes, a silica filler, a metal-functionalized polyisobutylene succinic anhydride derivative, a rubber matrix, an optional oil, and one or more components selected from the group consisting of carbon black, vulcanizing agent, vulcanization accelerator, tackifier resin, antioxidant, wax, peptizer, vulcanization retarder, activator, processing additive, plasticizer, pigments, and antiozonant. A method for making the rubber composition and the tire tread is also provided.
    Type: Grant
    Filed: June 26, 2009
    Date of Patent: October 1, 2013
    Assignee: Bridgestone Corporation
    Inventors: Xiaorong Wang, Victor J. Foltz
  • Polymeric core-shell nanoparticles with interphase region
    Patent number: 8541503
    Abstract: A polymeric nanoparticle composition is provided. The nanoparticle may be of a core/shell configuration with an interphase region connecting the core and the shell. The mean average diameter of the polymer nanoparticles may be less than about 250 nm. The size, composition, and/or configuration of the interphase region may be varied to achieve desired physical and/or chemical properties of the resulting polymeric nanoparticles, and of the compositions into which the nanoparticles are compounded.
    Type: Grant
    Filed: July 27, 2007
    Date of Patent: September 24, 2013
    Assignee: Bridgestone Corporation
    Inventors: Xiaorong Wang, Georg Böhm, Sandra Warren, Xiao-Dong Pan, James E. Hall
  • Interpolymers containing isobutylene and diene mer units
    Patent number: 8513361
    Abstract: This disclosure relates to a block interpolymer comprising at least one diene block and at least one butyl block, wherein the at least one butyl block comprises residue from a functionalizing agent on at least one end adjacent to the diene block(s). The disclosure also relates to methods of making such block interpolymers. Also disclosed is a rubber composition comprising: (a) a block interpolymer comprising at least one diene block and at least one butyl block, and (b) a filler, wherein said at least one butyl block comprises residue from a functionalizing agent on at least one end adjacent to said diene block(s).
    Type: Grant
    Filed: December 29, 2008
    Date of Patent: August 20, 2013
    Assignee: Bridgestone Corporation
    Inventors: Xiaorong Wang, Yuan-Yong Yan
  • Fluorescent nanoparticles
    Patent number: 8410225
    Abstract: A fluorescent nanoparticle includes a core comprising an alkenylbenzene; an intermediate layer, an outer shell layer, and a fluorescent portion. The fluorescent portion includes a structure represented by the following formula: wherein L is a direct bond or a linker group, and F is any fluorescent moiety. The fluorescent portion is located in at least one of the following locations: the core, the intermediate layer, or the shell layer of the nanoparticle. Methods for making the fluorescent nanoparticle are also described.
    Type: Grant
    Filed: September 8, 2009
    Date of Patent: April 2, 2013
    Assignee: Bridgestone Corporation
    Inventors: Xiaorong Wang, Christine Rademacher
  • Multiple-acid-derived metal soaps incorporated in rubber compositions and method for incorporating such soaps in rubber compositions
    Patent number: 8389609
    Abstract: A composition includes a polymer matrix, a multiple-acid-derived metal soap, wherein the metal has an oxidation state of +3 or +4. An associated method for making a rubber composition includes the steps of: combining a solvent and a multiple carboxylic, phosphonic, phosphoric, sulfuric, or sulfonic acid, or mixtures thereof, and mixing to form solution A; adding a source of metal ions to solution A and mixing to form a product A, the metal being selected from the metals having an oxidation state of +3 or +4, whereby product A includes a multiple-acid-derived metal soap; and combining the multiple-acid-derived metal soap with a diene rubber.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: March 5, 2013
    Assignee: Bridgestone Corporation
    Inventors: Xiaorong Wang, Victor J. Foltz, Terrence E. Hogan
  • POLYHEDRAL-MODIFIED POLYMER
    Publication number: 20130041096
    Abstract: A macromolecule including a polymer and a polyhedral radical chemically bonded to a terminus of the polymer provides numerous processing and performance advantages. Further functionalization of this macromolecule also is described as being advantageous in certain circumstances. Methods of providing, functionalizing, and utilizing the macro-molecule also are provided.
    Type: Application
    Filed: August 3, 2012
    Publication date: February 14, 2013
    Inventors: Yuan-Yong Yan, Jason Poulton, Takayuki Yako, Xiaorong Wang, Hao Wang, Michelle A. Cottrell
  • Reversible polymer/metal nano-composites and method for manufacturing same
    Patent number: 8349964
    Abstract: The present invention provides a polymer/metal nano-composite. The nano-composite includes at least one copolymer chain having alkenyl monomer units and maleimide monomer units, and a nano-sized metal or inorganic crystal. It also provides a method of producing nano-sized metal/inorganic crystals in pure form. These nano-composites and nano-crystals can be useful as polymer fillers, tire rubber compounds, semiconductors, nano-magnets, catalysts, and quantum dots etc.
    Type: Grant
    Filed: March 13, 2008
    Date of Patent: January 8, 2013
    Assignee: Bridgestone Corporation
    Inventors: Xiaorong Wang, Victor J. Foltz, Pat Sadhukhan, Georg C. A. Böhm
  • AMODIFIED RUBBER COMPOSITIONS AND METHODS OF PREPARATION
    Publication number: 20120302665
    Abstract: Modified rubber compositions containing an elastomer component and a modifier comprising a steroid and/or a peptide and methods of their production. Such modified rubber compositions can have improved properties and can be useful in making various articles of manufacture, such as, for example, in the manufacture of tires.
    Type: Application
    Filed: December 1, 2010
    Publication date: November 29, 2012
    Inventors: Xiaorong Wang, Victor J. Foltz, Edward D. Kelley
  • Disk-like nanoparticles
    Patent number: 8288473
    Abstract: A disk-like nanoparticle includes a core layer that comprises a cross-linked multi-vinyl substituted aromatic hydrocarbon and a shell layer that comprises tri-block copolymer chains, each having a first, a second, and a third block. The first and third blocks of the tri-block copolymer chains comprise vinyl aromatic monomer units and are crosslinked with the core. The second block comprises conjugated diene monomer units and comprises a top and bottom axial surface of the disk-like nanoparticle. In the case of a nanoparticle having A-B-C tri-block copolymer chains, the third block comprises a top and bottom axial surface of the disk-like nanoparticle.
    Type: Grant
    Filed: October 17, 2008
    Date of Patent: October 16, 2012
    Assignee: Bridgestone Corporation
    Inventors: Xiaorong Wang, Victor J. Foltz, Yuan-Yong Yan, Pat Sadhukhan
  • Rubber Compositions Including Metal Phosphate Esters
    Publication number: 20120252946
    Abstract: A composition includes a diene rubber and a metal phosphate ester of the formula: M being a metal with an oxidation state of +3 or +4, and R1 and R2 are independently selected from any organic moiety including hydrogen, except R1 and R2 cannot both be hydrogen. In addition, a method of making a rubber composition includes combining a solvent and a phosphate ester and mixing these to form a solution. A source of metal ions is then added to the solution. The metal in the source of metal ions is selected from the group consisting of metals with an oxidation state of +3 or +4. The product is then is combined with a diene rubber composition to form a useful article, such as the tread of a tire.
    Type: Application
    Filed: January 18, 2012
    Publication date: October 4, 2012
    Inventors: Terrence E. Hogan, Xiaorong Wang, Victor J. Foltz, Kentaro Kayashima
  • Polyhedral-modified polymer
    Patent number: 8236888
    Abstract: A macromolecule including a polymer and a polyhedral radical chemically bonded to a terminus of the polymer provides numerous processing and performance advantages. Further functionalization of this macromolecule also is described as being advantageous in certain circumstances. Methods of providing, functionalizing, and utilizing the macromolecule also are provided.
    Type: Grant
    Filed: July 27, 2011
    Date of Patent: August 7, 2012
    Inventors: Yuan-Yong Yan, Jason Poulton, Xiaorong Wang, Hao Wang, Michelle A. Cottrell
  • Core-First Nanoparticle Formation Process, Nanoparticle, And Composition
    Publication number: 20120132346
    Abstract: A method is provided for synthesizing a core-shell nanoparticle that includes the following steps: providing a polymeric seed (in a solvent) that includes a mono-vinyl monomer cross-linked with a cross-linking agent to form the core of the nanoparticle, the core has an average diameter of from about nanometers to about 10,000 nanometers, and the core has polymer chains with living ends; adding a stabilizer to stabilize the seed and prevent the seed from precipitating out of solution; and grafting a shell species onto the living ends of the core to form the shell of the nanoparticle. A core-first synthesized nanoparticle, along with a rubber composition and tire product are also provided.
    Type: Application
    Filed: December 29, 2009
    Publication date: May 31, 2012
    Inventors: Yaohong Chen, Mindaugas Rackaitis, Xiaorong Wang, Hideki Kitano
  • POLYHEDRAL-MODIFIED POLYMER
    Publication number: 20120010355
    Abstract: A macromolecule including a polymer and a polyhedral radical chemically bonded to a terminus of the polymer provides numerous processing and performance advantages. Further functionalization of this macromolecule also is described as being advantageous in certain circumstances. Methods of providing, functionalizing, and utilizing the macromolecule also are provided.
    Type: Application
    Filed: July 27, 2011
    Publication date: January 12, 2012
    Inventors: Yuan-Yong Yan, Jason Poulton, Xiaorong Wang, Hao Wang, Michelle A. Cottrell
  • Method of making nano-particles of selected size distribution
    Patent number: 8063142
    Abstract: A process for forming a nanoparticle composition is provided. The process includes polymerizing conjugated diene monomer in a hydrocarbon solvent to form a first reaction mixture, and charging excess alkenylbenzense monomer and anionic catalyst to form mono-block and diblock polymers. Micelles of said mono-block and diblock polymers are formed, and at least one crosslinking agent is added to cross-link the micelles and form nanoparticles. The nanoparticles preferably have a poly(alkenylbenzene) core and an outer layer including monomer units selected from the group consisting of conjugated dienes, alkenylbenzenes, alkylenes, and mixtures thereof, and a size distribution of between about 1 and 1000 nm.
    Type: Grant
    Filed: March 2, 2004
    Date of Patent: November 22, 2011
    Assignee: Bridgestone Corporation
    Inventors: Xiaorong Wang, Victor J. Foltz
  • Nano-particle preparation and applications
    Patent number: 8057899
    Abstract: A nano-particle composition including a poly(alkenylbenzene) core and a poly (conjugated diene) or a poly(alkylene) surface layer is provided. The nano-particles have a mean average diameter less than about 100 nm. The nano-particles can be modified via, for example, hydrogenation or functionalization. The nano-particles can advantageously be incorporated into rubbers, elastomers, and thermoplastics.
    Type: Grant
    Filed: April 13, 2005
    Date of Patent: November 15, 2011
    Assignee: Bridgestone Corporation
    Inventors: Xiaorong Wang, Chenchy Jeffrey Lin, James Hall, Sandra Warren, James Krom, Hajime Kondo, Koichi Morita
  • METHOD OF MAKING NANO-PARTICLES OF SELECTED SIZE DISTRIBUTION
    Publication number: 20110256403
    Abstract: A process for forming a nanoparticle composition is provided. The process includes polymerizing conjugated diene monomer in a hydrocarbon solvent to form a first reaction mixture, and charging excess alkenylbenzense monomer and anionic catalyst to form mono-block and diblock polymers. Micelles of said mono-block and diblock polymers are formed, and at least one crosslinking agent is added to cross-link the micelles and form nanoparticles. The nanoparticles preferably have a poly(alkenylbenzene) core and an outer layer including monomer units selected from the group consisting of conjugated dienes, alkenylbenzenes, alkylenes, and mixtures thereof, and a size distribution of between about 1 and 1000 nm.
    Type: Application
    Filed: March 2, 2004
    Publication date: October 20, 2011
    Inventors: Xiaorong Wang, Victor J. Foltz
  • Hairy Polymeric Nanoparticles With First And Second Shell Block Polymer Arms
    Publication number: 20110213066
    Abstract: Compositions and methods are included for preparing a hairy polymeric nanoparticle including first and second shell block polymer arms are at least partially phase-separated and surround a polymeric core. One type of polymeric arm can have a greater polarity than the other type(s) of polymeric arms. A rubber composition including the hairy nanoparticles is also provided.
    Type: Application
    Filed: April 5, 2010
    Publication date: September 1, 2011
    Inventors: Xiaorong Wang, Hideki Kitano, James H. Pawlow, Christopher G. Robertson, Yaohong Chen, Yuan-Yong Yan