Specified Material Contains A Group Ia Atom In Elemental Form Or Bonded To Hydrogen Or Carbon Patents (Class 525/271)
  • Patent number: 10550260
    Abstract: Polymer blends comprising components A), B) and C): A) 80 to 96% by weight of an impact modified styrenic polymer A), B) 1 to 7% by weight of a polymer blend B) comprising B1) 25 to 75% by weight of polyisobutylene and B2) 25 to 75% by weight of a polyolefin, C) 3 to 13% by weight of an elastomeric block copolymer C) of structure (A-(B/A))n-A, where A is a vinylaromatic block, (B/A) is a random copolymer block of vinylaromatic monomer and diene, and n is 1 to 10, exhibit improved environmental stress crack resistance properties in presence of hydrofluoro olefins.
    Type: Grant
    Filed: March 17, 2016
    Date of Patent: February 4, 2020
    Assignee: INEOS STYROLUTION GROUP GMBH
    Inventors: Thomas W. Cochran, John A. Morris
  • Patent number: 10479855
    Abstract: A (meth)acrylic acid copolymer (A) having a weight average molecular weight of 1000 to 1,000,000, and in which when the half-width of the primary scatter peak when measured by small angle X-ray scattering is defined as X, 0.12<X, is used as an adhesive. The (meth)acrylic copolymer (A) is obtained by polymerizing a monomer mixture containing a macromonomer (a) having a number average molecular weight of 500-100,000, and a vinyl monomer (b). The adhesive has sufficient holding force and adhesive force, and the occurrence of adhesive deposit can be prevented when peeled off.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: November 19, 2019
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Eri Masuda, Junichi Nakamura, Hiroko Shinada, Takayuki Kobayashi
  • Patent number: 10221293
    Abstract: A carbon black pellet comprising a plurality of agglomerates, aggregates, or primary carbon black particles and a binder including a hot-polymerized styrene-butadiene copolymer.
    Type: Grant
    Filed: September 22, 2015
    Date of Patent: March 5, 2019
    Assignee: Bridgestone Bandag, LLC
    Inventor: David L. Bender
  • Patent number: 9975984
    Abstract: The present invention provides a method for producing a block copolymer, which includes subjecting styrene or a derivative thereof (excluding ?-methylstyrene) to living anionic polymerization in the presence of a polymerization initiator by means of a microreactor having a channel being capable of mixing a plurality of liquids with each other, reacting a propagation end of the resultant polymer block (A) derived from styrene or a derivative thereof with ?-methylstyrene to obtain an intermediate polymer having a polymer unit (B) derived from ?-methylstyrene bonded to one end of the polymer block (A), and then subjecting a (meth)acrylate compound (c) to living anionic polymerization in the presence of a polymerization initiator so that the polymer unit (B) derived from ?-methyl styrene in the intermediate polymer serves as a propagation end to form a polymer block (C) derived from the (meth)acrylate compound (c).
    Type: Grant
    Filed: September 11, 2014
    Date of Patent: May 22, 2018
    Assignee: DIC CORPORATION
    Inventors: Yukie Uemura, Hisakazu Tanaka, Nobuhiro Oe
  • Patent number: 9623705
    Abstract: The invention provides a method for producing a modified conjugated diene (co)polymer, the method including comprising: a modification reaction step including causing an organic silane compound to react with a conjugated diene (co)polymer having an active site at the active site, the organic silane compound having a characteristic group for forming a silanol group through hydrolysis and, in the vicinity of the characteristic group, (i) a functional group which binds the organic silane compound to the conjugated diene (co)polymer via addition to or substitution at the active site and which promotes reaction between the silanol group and a reinforcing filler after the addition or substitution reaction, or (ii) a functional group which promotes reaction between the silanol group and a reinforcing filler, and a hydrolyzation step performed after the modification reaction step; a modified conjugated diene (co)polymer having, at a molecular end of the conjugated diene (co)polymer, a silanol group, and a functional
    Type: Grant
    Filed: March 10, 2009
    Date of Patent: April 18, 2017
    Assignee: BRIDGESTONE CORPORATION
    Inventors: Ken Tanaka, Noriko Mori, Yuki Itoh, Yoichi Ozawa, Ryuji Nakagawa, Junko Matsushita, Shigeaki Matsuo, Kouji Masaki, Fumihiro Shiraishi, Fuminori Oota
  • Patent number: 9441090
    Abstract: Methods for controlling properties of a conjugated diene monovinylarene block copolymer using a modifier during polymerization are disclosed. For instance, the Shore A hardness of the copolymer can be decreased via the addition of the modifier compound.
    Type: Grant
    Filed: March 12, 2015
    Date of Patent: September 13, 2016
    Assignee: Chevron Phillips Chemical Company LP
    Inventor: Jinping Joe Zhou
  • Patent number: 8957154
    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 15, 2012
    Date of Patent: February 17, 2015
    Assignee: Bridgestone Corporation
    Inventors: Xiaorong Wang, Victor J Foltz, Yuan-Yong Yan
  • Patent number: 8883921
    Abstract: A method of producing a silane cross-linked polyethylene is disclosed which includes maleating a polyethylene polymer to form a maleated polyethylene and reacting the maleated polyethylene with a primary or secondary amino silane to form a silane-grafted polyethylene. The method further includes treating the silane-grafted polyethylene in a moisture curing process to form the silane cross-linked polyethylene.
    Type: Grant
    Filed: February 21, 2012
    Date of Patent: November 11, 2014
    Assignee: Fina Technology, Inc.
    Inventors: Fengkui Li, John Ashbaugh, Jason Clark
  • Patent number: 8835561
    Abstract: Branched block polymers, and the rubber compositions containing them, which can be used, in particular, for manufacturing tires or semi-finished products for tires. Processes for preparing said polymers and compositions are also disclosed.
    Type: Grant
    Filed: July 31, 2006
    Date of Patent: September 16, 2014
    Assignee: Michelin Recherche et Technique S.A.
    Inventors: Sylvie Gandon-Pain, Alain Hut
  • Patent number: 8637604
    Abstract: A block copolymer comprising at least one polymer block A comprising conjugated diene monomer units, and at least one polymer block B comprising conjugated diene monomer units and aromatic vinyl monomer units. This block copolymer is characterized in that (1) the polymer block A has a glass transition temperature of ?88° C. to ?45° C., (2) the polymer block B has a glass transition temperature of 30° C. to 90° C., (3) the content of aromatic vinyl monomer units in the whole block copolymer is 3-52 wt. %, (4) the aromatic vinyl block ratio in the whole block copolymer is smaller than 69 wt. %, and (5) the viscosity of a 5 wt. % solution of the block copolymer in styrene is 30-80 mPa·s. The block copolymer is useful as a resin modifier.
    Type: Grant
    Filed: July 27, 2006
    Date of Patent: January 28, 2014
    Assignee: Zeon Corporation
    Inventors: Masao Nakamura, Kazuya Ito, Hidenori Yamagishi
  • Patent number: 8598271
    Abstract: An object of the present invention is to provide a block copolymer composition containing an aromatic vinyl-conjugated diene-aromatic vinyl block copolymer, which is capable of achieving a high-level balance between a high elastic modulus and a small permanent set, and is capable of producing a highly isotropic molded product having uniform mechanical properties even when a molding method which is likely to cause molecular orientation, such as extrusion molding, is applied.
    Type: Grant
    Filed: December 25, 2009
    Date of Patent: December 3, 2013
    Assignee: Zeon Corporation
    Inventors: Ryouji Oda, Takeshi Ooishi
  • Patent number: 8578852
    Abstract: Disclosed is a block copolymer composition for flexographic printing plates, which is capable of providing a flexographic printing plate that has much more excellent wear resistance than conventional flexographic printing plates, while maintaining sufficient rubber elasticity. The block copolymer composition for flexographic printing plates comprises a block copolymer A and a block copolymer B, each of which is an aromatic vinyl-conjugated diene-aromatic vinyl block copolymer having a specific structure, wherein a content of the aromatic vinyl monomer unit in the block copolymer A is 41% or more.
    Type: Grant
    Filed: February 24, 2010
    Date of Patent: November 12, 2013
    Assignee: Zeon Corporation
    Inventors: Tetsuaki Matsubara, Ryouji Oda
  • Patent number: 8575269
    Abstract: A mixture which contains a) a copolymer or block copolymer A comprising one or more copolymer blocks (B/S)A which are respectively composed of from 65 to 95% by weight of vinylaromatic monomers and of from 35 to 5% by weight of dienes, and whose glass transition temperature TgA is in the range from 40° to 90° C., b) a block copolymer B comprising at least one hard block S which is composed of vinylaromatic monomers, and comprising one or more copolymer blocks (B/S)B which are respectively composed of from 20 to 60% by weight of vinylaromatic monomers and of from 80 to 40% by weight of dienes, and whose glass transition temperature TgB is in the range from ?70° to 0° C., c) a polystyrene C, and its use for the production of packaging for electronics components.
    Type: Grant
    Filed: September 3, 2008
    Date of Patent: November 5, 2013
    Assignee: Styrolution GmbH
    Inventors: Konrad Knoll, Jürgen Koch, Piyada Charoensirisomboon, Daniel Wagner
  • 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
  • Patent number: 8501869
    Abstract: Provided is a hot-melt adhesive composition which can be easily applied at a relatively low temperature, has a long open time, and also has high holding power. A hot-melt adhesive composition comprising a block copolymer composition which includes a block copolymer A and a block copolymer B, and a tackifying resin, wherein a weight ratio (A/B) of the block copolymer A and the block copolymer B is 25/75 to 90/10, and an aromatic vinyl monomer unit content of the block copolymer A is 41% or greater.
    Type: Grant
    Filed: December 25, 2009
    Date of Patent: August 6, 2013
    Assignee: Zeon Corporation
    Inventors: Ryouji Oda, Sadaharu Hashimoto, Ayako Furuko
  • Patent number: 8492479
    Abstract: A process for preparing a functionalized or unfunctionalized diene block copolymer comprising at least one polyether block of number-average molecular weight approximately from 150 to 5000 g/mol linked to at least one block constituted of a diene elastomer via at least one silicon atom. The process allows a high degree of grafting of the polyether to the polymer chains. Also disclosed is a reinforced rubber composition, especially intended for the manufacture of tires, comprising such a diene block copolymer which is intended to interact with the reinforcing filler. Such a rubber composition has improved hysteresis properties in the vulcanized state, while retaining satisfactory processing properties in the non-vulcanized state.
    Type: Grant
    Filed: June 19, 2008
    Date of Patent: July 23, 2013
    Assignees: Michelin Recherche et Technique S.A., Compagnie Generale des Etablissements Michelin
    Inventors: Pierre Robert, Nicolas Seeboth, Jean-Michel Favrot, Philippe Chaboche
  • Patent number: 8492480
    Abstract: A block copolymer composition comprising an aromatic vinyl-conjugated diene-aromatic vinyl block copolymer having a high-level balance between a high elastic modulus and a small elongation set is provided. The block copolymer composition comprises a block copolymer A represented by formula (A) and a block copolymer B represented by formula (B), where the weight ratio of the block copolymer A to the block copolymer B, A/B, is from 36/64 to 85/15 and the ratio of the aromatic vinyl monomer units relative to all polymer components in the block copolymer composition is 27-70 wt %. Ar1a-Da-Ar2a (A). Ar1b-Db-Ar2b (B).
    Type: Grant
    Filed: March 30, 2009
    Date of Patent: July 23, 2013
    Assignee: Zeon Corporation
    Inventors: Takeshi Ooishi, Ryouji Oda
  • Patent number: 8470929
    Abstract: Provided is a composition for a stretchable film, which achieves a high-level balance between a high elastic modulus and a small permanent set, and can be formed into a stretchable film with satisfactory formability. A composition for a stretchable film comprises a block copolymer composition containing a block copolymer A represented by the following general formula (A) and a block copolymer B represented by the following general formula (B), and a tackifier resin: Ar1a-Da-Ar2a ??(A) (Arb-Db)n-X ??(B), in the general formulas (A) and (B), Ar1a and Arb each represent an aromatic vinyl polymer block having a weight average molecular weight of 6,000 to 20,000; Ar2a represents an aromatic vinyl polymer block having a weight average molecular weight of 40,000 to 400,000; Da and Db each represent a conjugated diene polymer block having a vinyl bond content of 1 mol % to 20 mol %; X represents a single bond or a residue of a coupling agent; and n represents an integer of 2 or greater.
    Type: Grant
    Filed: March 29, 2010
    Date of Patent: June 25, 2013
    Assignee: Zeon Corporation
    Inventors: Takeshi Ooishi, Takurou Sakurai
  • Patent number: 8415429
    Abstract: We disclose a monovinylarene-conjugated diene block copolymer containing a plurality of monovinylarene-conjugated diene mixed blocks, wherein each mixed block contains conjugated diene units and monovinylarene units in a weight ratio of about 0.05 to about 0.33. We also disclose a composition containing (a) from about 50 parts by weight to about 95 parts by weight of the monovinylarene-conjugated diene block copolymer and (b) from about 5 parts by weight to about 50 parts by weight of polystyrene; wherein the monovinylarene-conjugated diene block copolymer and the polystyrene total 100 parts by weight.
    Type: Grant
    Filed: December 11, 2006
    Date of Patent: April 9, 2013
    Assignee: Chervron Phillips Chemical Company LP
    Inventors: John Mark Brown, Michael A. Smith, Nathan E. Stacy, Carleton E. Stouffer, John D. Wilkey
  • Patent number: 8362156
    Abstract: A method for preparing a functionalized polymer, the method comprising the steps of preparing a reactive polymer and reacting the reactive polymer with a heterocyclic nitrile compound.
    Type: Grant
    Filed: October 14, 2008
    Date of Patent: January 29, 2013
    Assignee: Bridgestone Corporation
    Inventors: Steven Luo, Ryouji Tanaka, Kouichirou Tani
  • Patent number: 8314189
    Abstract: A method for preparing a functionalized polymer, the method comprising the steps of preparing a reactive polymer and reacting the reactive polymer with a heterocyclic nitrile compound.
    Type: Grant
    Filed: June 23, 2008
    Date of Patent: November 20, 2012
    Assignee: Bridgestone Corporation
    Inventors: Steven Luo, Ryouji Tanaka, Kouichirou Tani
  • Patent number: 8304488
    Abstract: Conjugated diene polymer is provided that comprises a constitutional unit based on a conjugated diene and a constitutional unit based on a compound represented by Formula (1) below: R1Si(—R2-A)mR33-m??(1) wherein m represents an integer of 1 to 3; R1 represents a hydrocarbyl group having a polymerizable carbon-carbon double bond; R2 represents a hydrocarbylene group, and, when there are plural R2s, R2s each may be the same or different; A represents a substituted amino group, and, when there are plural A's, A's each may be the same or different; R3 represents a hydrocarbyl group, a substituted hydrocarbyl group or a substituted amino group, and, when there are plural R3s, R3s each may be the same or different.
    Type: Grant
    Filed: March 22, 2011
    Date of Patent: November 6, 2012
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Toru Fujii, Katsunari Inagaki
  • Patent number: 8247498
    Abstract: It is to provide a narrowly dispersible star polymer having a controlled molecular structure and a method for easily producing such star polymer. The method comprises step (A) wherein arm (I) is formed by binding the anionic end of a polymer having an anionic end to a core and step (B) wherein arm (II) is extended from the core by a living radical polymerization. Examples of the star polymer is specifically exemplified by star polymers characterized by having a structure represented by formula (I-1) or (I-2) (In formula (I-1) or (I-2), B, C1 and C2 each independently represents a group composed of a polymer; and m1 and m2 each independently represents an integer of 1 or 2, wherein when m1 or m2 is 2, both C1 or both C2 represent the same group or different groups).
    Type: Grant
    Filed: July 11, 2007
    Date of Patent: August 21, 2012
    Assignee: Nippon Soda Co., Ltd.
    Inventor: Takeshi Niitani
  • Patent number: 8236899
    Abstract: Zwitterionic block copolymers having oppositely charged or chargeable terminal groups, and methods of making and using the same, are disclosed. The zwitterionic block copolymers can undergo microphase separation.
    Type: Grant
    Filed: August 9, 2011
    Date of Patent: August 7, 2012
    Assignee: Micron Technology, Inc.
    Inventors: Dan Millward, Eugene P. Marsh
  • Patent number: 8236894
    Abstract: The present invention relates generally to monovinylarene-conjugated diene block copolymers adapted for shrinkable film applications. In one embodiment, a block copolymer is provided wherein an oriented 2 mil film of the block copolymer oriented at 100° C. or less exhibits less than 10% shrinkage at 70° C., and at least 70% shrinkage at 100° C.
    Type: Grant
    Filed: May 24, 2010
    Date of Patent: August 7, 2012
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: John M. Brown, Carleton E. Stouffer, John D. Wilkey
  • Patent number: 8153727
    Abstract: A block copolymer comprised of a polymer block or blocks (A) comprising conjugated diene monomer units and a polymer block or blocks (B) comprising conjugated diene monomer units and aromatic vinyl monomer units, wherein (1) the polymer block or blocks (A) have a glass transition temperature in the range of ?88 to ?45° C., (2) the polymer block or blocks (B) have a glass transition temperature in the range of 30 to 90° C., (3) the content of aromatic vinyl monomer units in the block copolymer is in the range of 30 to 52% by weight based on the total weight of the block copolymer, (4) the block copolymer has an aromatic vinyl block ratio of smaller than 69% by weight based on the total weight of the block copolymer, and (5) the viscosity of a 5% by weight solution of the block copolymer in styrene is at least 5 mPa·s but smaller than 30 mPa·s. This block copolymer is used as a modifier for resin.
    Type: Grant
    Filed: May 8, 2006
    Date of Patent: April 10, 2012
    Assignee: Zeon Corporation
    Inventors: Kazuya Ito, Hidenori Yamagishi, Masao Nakamura
  • Patent number: 8124704
    Abstract: A conjugated diene polymer is provided that includes a conjugated diene-based constituent unit and a group represented by Formula (I) below at both termini of a polymer chain. There are also provided a conjugated diene polymer composition formed by combining the conjugated diene polymer and a filler, a process for producing the conjugated diene polymer, a process for producing the conjugated diene polymer composition, a vulcanizate, and a process for producing the vulcanizate.
    Type: Grant
    Filed: March 24, 2009
    Date of Patent: February 28, 2012
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Mayumi Oshima, Toru Fujii
  • Publication number: 20110319568
    Abstract: Provided is a copolymer rubber, comprising a copolymer having a star-shaped block structure (SIB-PA)n-X, wherein SIB is a block comprising styrene, butadiene, and isoprene as constituent monomers; PA is a block comprising butadiene or isoprene as a constituent monomer; X is the residue of at least one coupling agent; and n=2?4. Also provided is a process for preparing the copolymer rubber and use thereof.
    Type: Application
    Filed: June 27, 2011
    Publication date: December 29, 2011
    Inventors: Guozhu YU, Lin XU, Xinhe KANG, Nini WANG, Hui LIU, Chuanqing LI
  • 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
  • Patent number: 8022147
    Abstract: Zwitterionic block copolymers having oppositely charged or chargeable terminal groups, and methods of making and using the same, are disclosed. The zwitterionic block copolymers can undergo microphase separation.
    Type: Grant
    Filed: February 11, 2011
    Date of Patent: September 20, 2011
    Assignee: Micron Technology, Inc.
    Inventors: Dan Millward, Eugene P. Marsh
  • Publication number: 20110207874
    Abstract: A conjugated diene polymer is provided that includes a conjugated diene-based monomer unit and a monomer unit based on a compound represented by Formula (1) below, the monomer unit based on a compound represented by Formula (1) below being between a conjugated diene-based monomer unit-containing partial chain and a conjugated diene-based monomer unit-containing partial chain (said partial chain not comprising a monomer unit based on a compound represented by Formula (1) below), and the polymer having at least one terminus modified by a compound represented by Formula (2) below, wherein r is 0 or 1, R1 denotes a hydrocarbyl group or a group containing at least one atom selected from the atomic group consisting of a nitrogen atom, an oxygen atom, and a sulfur atom, and R2 denotes a group containing at least one atom selected from the atomic group consisting of a nitrogen atom, an oxygen atom, and a sulfur atom, wherein X denotes an oxygen atom or a sulfur atom, R3 denotes a nitrogen atom- and/or oxygen
    Type: Application
    Filed: February 23, 2011
    Publication date: August 25, 2011
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Mana Ito, Katsunari Inagaki
  • Patent number: 7977432
    Abstract: The present invention is a, solid block copolymer comprising at least two polymer end blocks A and at least one polymer interior block B wherein each A block is a polymer block resistant to lithiation and each B block is a polymer block susceptible to lithiation, and wherein said A and B blocks do not contain any significant levels of olefinic unsaturation. After lithiation, the lithiated polymer is reacted with at least one graftable functional molecule selected from the group consisting of an electrophilic graftable molecule containing a functional group and an electrophile. Preferred are carbon monoxide and ethylene oxide. Also claimed are processes for making such block copolymers, and the various end uses and applications for such block copolymers.
    Type: Grant
    Filed: January 11, 2008
    Date of Patent: July 12, 2011
    Assignee: Kraton Polymers U.S. LLC
    Inventors: Robert C. Bening, Dale Lee Handlin, Jr., Scott Russell Trenor, Carl Lesley Willis
  • Patent number: 7977428
    Abstract: To provide a block copolymer composition excellent in balance of transparency, impact resistance, etc. in the form of not only an excluded product and a blow molded product but also an injection molded product.
    Type: Grant
    Filed: March 19, 2004
    Date of Patent: July 12, 2011
    Assignee: Denki Kagaku Kogyo Kabushiki Kaisha
    Inventors: Hiroyuki Kurimura, Jun Watanabe, Takeshi Oda, Norihiro Shimizu
  • Patent number: 7928159
    Abstract: A process for providing interaction between particulate filler and a functionalized polymer involves a composition that includes at least three components: (1) a polymer that includes a functional group including an acidic cation of a primary or secondary amine functionality, (2) a material including a functionality capable of reacting with the acidic cation, and (3) particulate filler. The amine functionality from (1) is allowed to interact with (3) after being neutralized by the action of the acid-reactive functionality from (2). The process is useful in the formation of vulcanizates and articles made therefrom.
    Type: Grant
    Filed: May 26, 2006
    Date of Patent: April 19, 2011
    Assignee: Bridgestone Corpororation
    Inventor: Yuan-Yong Yan
  • Patent number: 7910660
    Abstract: Zwitterionic block copolymers having oppositely charged or chargeable terminal groups, and methods of making and using the same, are disclosed. The zwitterionic block copolymers can undergo microphase separation. In some embodiments a zwitterionic block copolymer includes a first terminal block having a positively charged or chargeable group at a terminal end, and a second terminal block having a negatively charged or chargeable group at another terminal end. The zwitterionic block copolymer is configured to undergo microphase separation to assemble into alternating lamellar domains; with one of the alternating domains being composed of the first terminal block, and with another of the alternating domains being composed of the second terminal block.
    Type: Grant
    Filed: April 15, 2010
    Date of Patent: March 22, 2011
    Assignee: Micron Technology, Inc.
    Inventors: Dan B. Millward, Eugene P. Marsh
  • Patent number: 7893156
    Abstract: The present invention provides a block copolymer or a hydrogenated product thereof excellent in low-temperature shrinkability, natural shrinkability, rigidity and the like, excellent in a balance of physical properties such as blocking resistance, resistance to fusion bonding in hot water, impact resistance and the like, and having a few fish eyes (FE's) caused by gels. Further, the invention provides a heat shrinkable film and a heat shrinkable multilayer film suitable for drink container packaging, cap seals and the like, using such a block copolymer or the hydrogenated product thereof.
    Type: Grant
    Filed: April 23, 2003
    Date of Patent: February 22, 2011
    Assignee: Asahi Kasei Chemicals Corporation
    Inventors: Susumu Hoshi, Masahiro Mori, Yukio Yamaura, Toshinori Shiraki
  • Patent number: 7893164
    Abstract: There is provided a method for producing a conjugated diolefin (co)polymer rubber excellent in processability, independently of the kind and combination of filling agent incorporated, excellent in a balance among wet-skid characteristics, low hysteresis loss, wear resistance and breaking strength, when vulcanization treatment is performed to form a vulcanized rubber, and useful as a material for a tread or a sidewall member of a tire for low fuel consumption, a large sized tire or a high performance tire.
    Type: Grant
    Filed: September 14, 2005
    Date of Patent: February 22, 2011
    Assignee: JSR Corporation
    Inventors: Takuo Sone, Takaomi Matsumoto, Toshihiro Tadaki
  • Patent number: 7884160
    Abstract: The present invention provides polymeric nanoparticles comprising triblock and optionally diblock copolymer chains. The architecture of the polymeric nanoparticles may be controlled, resulting in nanoparticles having non-spherical shapes. The present invention also provides a method of preparing the polymeric nanoparticles and a rubber article such as a tire manufactured from a formulation comprising the polymer nanoparticles.
    Type: Grant
    Filed: December 19, 2006
    Date of Patent: February 8, 2011
    Assignee: Bridgestone Corporation
    Inventors: Xiaorong Wang, Mindaugas Rackaitis, Victor J. Foltz, Edward D. Kelley, Yuan-Yong Yan
  • Patent number: 7847022
    Abstract: The present invention relates to articles prepared from novel anionic block copolymers of mono alkenyl arenes and conjugated dienes, and to blends of such block copolymers with other polymers. The block copolymers have mono alkenyl arene end blocks and controlled distribution blocks of mono alkenyl arenes and conjugated dienes. The block copolymer may be blended with at least one other polymer selected from the group consisting of olefin polymers, styrene polymers, amorphous resins and engineering thermoplastic resins.
    Type: Grant
    Filed: February 6, 2003
    Date of Patent: December 7, 2010
    Assignee: Kraton Polymers U.S. LLC
    Inventors: Kathryn Wright, Dale Lee Handlin, Jr., Carl Lesley Willis, Margaret Ann Burns Clawson, Hendrik de Groot, Huan Yang, Keith E. Eiden
  • Patent number: 7812092
    Abstract: This invention discloses a process for synthesizing a hairy polymer particle which comprises the steps of (1) polymerizing a vinyl aromatic monomer by emulsion polymerization in an aqueous medium to produce core particles, (2) recovering the core particles from the aqueous medium, (3) dispersing the core particles in an organic solvent, (4) adding an organo-lithium compound to the dried core particles in the organic solvent to produce the hairless core initiator, and (5) utilizing the hairless core initiator to initiate the anionic polymerization of a conjugated diolefin monomer in an organic solvent to produce a solution of the hairy polymer particles. The hairy polymer nanoparticles can then be recovered from the organic solvent. These hairy polymer particles are comprised of (1) a core which is comprised of a polymer of a vinyl aromatic monomer and (2) hairs which are polymer chains of a conjugated diolefin monomer, wherein the hairs are covalently bonded to the core.
    Type: Grant
    Filed: June 10, 2008
    Date of Patent: October 12, 2010
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Lei Zheng, Eric Sean Castner, Thierry Florent Edme Materne
  • Patent number: 7737216
    Abstract: The present invention relates generally to monovinylarene-conjugated diene block copolymers adapted for shrinkable film applications. In one embodiment, a block copolymer is provided wherein an oriented 2 mil film of the block copolymer oriented at 100° C. or less exhibits less than 10% shrinkage at 70° C., and at least 70% shrinkage at 100° C.
    Type: Grant
    Filed: January 26, 2006
    Date of Patent: June 15, 2010
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: John M Brown, Carleton E Stouffer, John D Wilkey
  • Patent number: 7737218
    Abstract: Provided is a method comprising reacting the anionic living end of a polymer with a compound selected from the group consisting of tin halides and silicon halides to produced a polymer with a homolytically cleavable group containing a Sn—C bond or a Si—C bond. An engineered plastic may then be produced by adding the polymer containing a homolytically cleavable group containing a Sn—C bond or a Si—C bond to a solvent comprising at least one vinyl monomer; (b) optionally adding at least one additional inert solvent; (c) optionally adding additives selected from the group consisting of extender oils, modifiers, and antioxidants; and (d) initiating polymerization of the at least one vinyl monomer by the use of an initiator and/or heat, wherein a free radical is produced from the polymer containing a homolytically cleavable group containing a Sn—C bond or a Si—C bond.
    Type: Grant
    Filed: December 29, 2006
    Date of Patent: June 15, 2010
    Assignee: Bridgestone Corporation
    Inventors: James E. Hall, David F. Lawson
  • Patent number: 7732533
    Abstract: Zwitterionic block copolymers having oppositely charged or chargeable terminal groups, and methods of making and using the same, are disclosed. The zwitterionic block copolymers can undergo microphase separation.
    Type: Grant
    Filed: August 31, 2007
    Date of Patent: June 8, 2010
    Assignee: Micron Technology, Inc.
    Inventors: Dan B. Millward, Eugene P. Marsh
  • Patent number: 7723438
    Abstract: A nanoparticle which includes a multi-armed core and surface decoration which is attached to the core is prepared. A multi-armed core is provided by any of a number of possible routes, exemplary preferred routes being living anionic polymerization that is initiated by a reactive, functionalized anionic initiator and ?-caprolactone polymerization of a bis-MPA dendrimer. The multi-armed core is preferably functionalized on some or all arms. A coupling reaction is then employed to bond surface decoration to one or more arms of the multi-armed core. The surface decoration is a small molecule or oligomer with a degree of polymerization less than 50, a preferred decoration being a PEG oligomer with degree of polymerization between 2 and 24. The nanoparticles (particle size?10 nm) are employed as sacrificial templating porogens to form porous dielectrics. The porogens are mixed with matrix precursors (e.g., methyl silsesquioxane resin), the matrix vitrifies, and the porogens are removed via burnout.
    Type: Grant
    Filed: April 28, 2005
    Date of Patent: May 25, 2010
    Assignee: International Business Machines Corporation
    Inventors: James Lupton Hedrick, Victor Yee-Way Lee, Teddie Peregrino Magbitang, Robert Dennis Miller
  • Patent number: 7714067
    Abstract: A block copolymer mixture containing a branched block copolymer characterized in that it has at least three types of polymer blocks with different molecular weights, each comprising a vinyl aromatic hydrocarbon as monomer units, the molecular weight distribution of a mixture of the polymer blocks S1, S2 and S3 each comprising a vinyl aromatic hydrocarbon as monomer units is within a specific range, and in a gel permeation chromatogram of the mixture of three types of the polymer blocks S1, S2 and S3, M1/M3 and M2/M3 are within specific ranges, where M1, M2 and M3 are peak top molecular weights of the respective polymer blocks.
    Type: Grant
    Filed: March 19, 2004
    Date of Patent: May 11, 2010
    Assignee: Denki Kagaku Kogyo Kabushiki Kaisha
    Inventors: Hiroyuki Kurimura, Jun Watanabe, Takeshi Ootsuka, Shigeru Suzuki, Takeshi Oda, Norihiro Shimizu
  • Patent number: 7691945
    Abstract: A radial multi-block copolymer contains a tapered block as represented by the following formula 1. The radial multi-block copolymer, which includes a polystyrene block, a poly(isoprene-styrene)tapered block, a polyisoprene block, and a polybutadiene block, can be used as an excellent pressure-sensitive adhesive material. (pA-pT-pB)m-X-n(pC-pB-pT-pA)??Formula 1 where pA is the polyvinyl aromatic block; pT is the poly(isoprene-styrene)tapered block; pB is the polyisoprene block; pC is the polybutadiene block; X is the residue of a multi-functional coupling agent used in preparation of the radial multi-block copolymer; m and n are integers equal to or greater than 1, representing the number of branches associated with X; and pT=pTA+pTB, where pTA is the pA component of pT, and pTB is the pB component of pT.
    Type: Grant
    Filed: December 28, 2006
    Date of Patent: April 6, 2010
    Assignee: Korea Kumho Petrochemical Co., Ltd.
    Inventors: Jong-Geun Kim, Tae-Yi Kang, Sam-Min Kim
  • Patent number: 7662888
    Abstract: A polypropylene based heat shrinkable film obtained by using a propylene-ethylene block copolymer (A) which satisfies the following requirements (A-i) to (A-iv), and having heat shrinkability imparted by orientation in at least one direction: (A-i) it is a propylene-ethylene block copolymer obtained through sequential polymerization catalyzed by a metallocene catalyst which is composed of 30 to 95 wt % of a propylene homopolymer or propylene-ethylene random copolymer component (A1) having an ethylene content of at most 7 wt % produced in a first step and 70 to 5 wt % of a propylene-ethylene random copolymer component (A2) produced in a second step having an ethylene content higher by 3 to 20 wt % than that of the component (A1); (A-ii) it has a melt flow rate (MFR: 2.16 kg, 230° C.) within a range of 0.1 to 30 g/10 min; (A-iii) a temperature-loss tangent (tan ?) curve obtained by dynamic mechanical analysis (DMA) has a single peak at a temperature of at most 0° C.
    Type: Grant
    Filed: April 25, 2006
    Date of Patent: February 16, 2010
    Assignee: Japan Polypropylene Corporation
    Inventors: Gen Kanai, Kuninori Takahashi, Shinichi Kitade, Iku Kouzai
  • Patent number: 7659342
    Abstract: The present invention provides a nano-particle comprising a shell and a polar core, their preparation, and their applications in ER fluids, polymeric product, rubber composition, tire product, hard disk drive gasket, matrix composition, and engine mount etc. The shell comprises a polymer formed from formula (I) monomers and the core comprises a polymer formed from formula (II) monomers, in which R1 and R2 are hydrogen; R3, R4, R5, R6, and up to three of R7, R8, R9, and R10 are each independently selected from the group consisting of hydrogen, methyl, ethyl, propyl, and isopropyl; and at least one of R7, R8, R9, and R10 is a polar group that is more polar than any one of R1, R2, R3, R4, R5, and R6 groups.
    Type: Grant
    Filed: February 3, 2005
    Date of Patent: February 9, 2010
    Assignee: Bridgestone Corporation
    Inventors: Xiaorong Wang, Victor J. Foltz, Dennis R. Brumbaugh
  • Patent number: 7625967
    Abstract: The present invention relates to oil gel compositions that include at least one non-aromatic ester oil and an anionic block copolymer of a mono alkenyl arene and a conjugated diene. The block copolymer is selectively hydrogenated and has mono alkenyl arene end blocks and a controlled distribution block of a mono alkenyl arene and a conjugated diene midblock. The ester oil is a non-aromatic, ester compound such as soybean oil, rapeseed oil, and other like compounds.
    Type: Grant
    Filed: March 7, 2006
    Date of Patent: December 1, 2009
    Assignee: Kraton Polymers U.S. LLC
    Inventor: David John St. Clair
  • Publication number: 20090247692
    Abstract: A conjugated diene polymer is provided that includes a conjugated diene-based constituent unit and a group represented by Formula (I) below at both termini of a polymer chain. (In the formula, R1 denotes a hydrogen atom, a hydrocarbyl group having 1 to 20 carbons, or a substituted hydrocarbyl group having 1 to 20 carbons, X1, X2, and X3 independently denote a group represented by Formula (II) below, a hydroxy group, a hydrocarbyl group, or a substituted hydrocarbyl group, and at least one of X1, X2, and X3 is a group represented by Formula (II) below or a hydroxy group.) (In the formula, R2 and R3 independently denote a hydrocarbyl group having 1 to 6 carbons, a substituted hydrocarbyl group having 1 to 6 carbons, a silyl group, or a substituted silyl group, and R2 and R3 may be bonded so as to form, together with the N atom, a ring structure.
    Type: Application
    Filed: March 24, 2009
    Publication date: October 1, 2009
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Mayumi OSHIMA, Toru Fujii