Non-metal Nitrogen-containing Material Patents (Class 526/147)
  • Patent number: 10239976
    Abstract: Embodiments of the invention described herein relate to a polyethylene polymer composition suitable for use in the manufacture of packaging articles, flexible films and/or sheets. In one embodiment, the copolymer comprises a polyethylene resin with density 0.918 g/cm3 to about 0.935 g/cm3, G? at G?(500 Pa) value, as determined from Dynamic Mechanical Analysis at 190° C., of less than 40 Pa, Mz/Mw of greater than 2, CDBI50 of greater than 60. Other embodiments relate to polymer compositions with defined molecular characteristics and formulations suitable for use in the manufacture of articles including films, sheets, bags and pouches with improved creep resistance and high toughness and a good balance of film stiffness and processability in monolayer and/or multi-layer film structures.
    Type: Grant
    Filed: August 6, 2015
    Date of Patent: March 26, 2019
    Assignee: NOVA Chemicals (International) S.A.
    Inventors: Shivendra Goyal, Bronwyn Gillon, Stephen Salomons
  • Patent number: 9000107
    Abstract: A process for preparing a polydiene, the process comprising the step of: polymerizing conjugated diene monomer in the presence of a (hydrocarbyloxyhydrocarbyl)amine, where said step of polymerizing employs a lanthanide-based catalyst system.
    Type: Grant
    Filed: January 31, 2012
    Date of Patent: April 7, 2015
    Assignee: Bridgestone Corporation
    Inventors: Zengquan Qin, Jason T. Poulton
  • Publication number: 20150080524
    Abstract: Provided is a polymer, a composition and film comprising the polymer, and a preparation method of the polymer. The polymer includes a compound having a hydrophobic property at its terminal, and thus a film capable of having a hydrophobic surface can be provided at the same time when the film is formed without a separate surface treatment. Further, an effect capable of permanently hydrophobically modifying a film surface is obtained at a low cost and a composition that does not occur a phase separation phenomenon in a polymer solution state is provided. For example, the film is used as a water repellent coating film, an anti-contamination film, or the like.
    Type: Application
    Filed: November 26, 2014
    Publication date: March 19, 2015
    Applicant: LG CHEM, LTD.
    Inventors: Jeong Ae Yoon, No Ma Kim, Su Jeong Kim, In Ho Hwang
  • Patent number: 8957167
    Abstract: A polymerization process includes contacting the following in a gas-phase reactor system under polymerization conditions for making a polymer product: a metallocene-based catalyst system including a supported constrained geometry catalyst, at least one monomer, and an additive selected from a group consisting of an aluminum distearate, an ethoxylated amine, and a mixture thereof. The additive may be selected from a group consisting of an aluminum distearate, an ethoxylated amine, polyethylenimines, and other additives suitable for use in the production of polymers for food contact applications and end products, including a mixture of a polysulfone copolymer, a polymeric polyamine, and oil-soluble sulfonic acid, in a carrier fluid, and mixtures thereof.
    Type: Grant
    Filed: July 27, 2010
    Date of Patent: February 17, 2015
    Assignee: Univation Technologies, LLC
    Inventors: F. David Hussein, Kevin J. Cann, F. Gregory Stakem, Ann M. Schoeb-Wolters, Wesley R. Mariott, James M. Farley, Michael D. Awe
  • Patent number: 8933183
    Abstract: In a method for polymerizing a (meth)acrylic monomer by living radical polymerization in the presence of a transition metal complex catalyst, the combined use of a multidentate amine (A), a base (B) and a reducing agent (C) makes it possible to achieve a rapid polymerization reaction and high monomer conversion rate and obtain a polymer having a narrow molecular weight distribution when 5-30 ppm by weight of copper atoms and a mole amount of 7 mmol % or less of multidentate amine (A) are used, each based on the total amount of (meth)acrylic monomer introduced.
    Type: Grant
    Filed: July 25, 2011
    Date of Patent: January 13, 2015
    Assignee: Kaneka Corporation
    Inventors: Yasunaka Kato, Kenichi Yoshihashi
  • Publication number: 20140357817
    Abstract: Olefin polymerization is carried out with a supported phosphinimine catalyst which has been treated with a long chain substituted amine compound.
    Type: Application
    Filed: July 31, 2014
    Publication date: December 4, 2014
    Applicant: NOVA Chemicals (International) S.A.
    Inventors: Peter Phung Minh Hoang, Patrick Lam, Victoria Ker, Cliff Robert Baar, Charles Ashton Garret Carter, Yan Jiang
  • Publication number: 20140357818
    Abstract: Olefin polymerization is carried out with a supported phosphinimine catalyst which has been treated with a long chain substituted amine compound.
    Type: Application
    Filed: August 19, 2014
    Publication date: December 4, 2014
    Applicant: NOVA Chemicals (International) S.A.
    Inventors: Peter Phung Minh Hoang, Victoria Ker, Charles Ashton Garret Carter, Sergio Alejandro Guillen-Castellanos, Yan Jiang
  • Patent number: 8895673
    Abstract: The present invention relates to methods for preparing degradable model networks from any monomer functionality with any degradation methodology. It is based on the use of Atom-Transfer Radical Polymerization and CLICK chemistry to form the desired product.
    Type: Grant
    Filed: February 19, 2013
    Date of Patent: November 25, 2014
    Assignee: The Trustees of Columbia University in the City of New York
    Inventors: Jeremiah Johnson, Jeffrey T. Koberstein, Nicholas J. Turro
  • Patent number: 8883941
    Abstract: This invention provides methods for controlled single electron transfer living radical polymerization (SET-LRP) of monomers with increased conversion, high molecular weights and low polydispersity by allowing the polymerization to proceed at low temperatures via a tubular reactor either made of copper or containing copper metal surface.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: November 11, 2014
    Assignee: Henkel Corporation
    Inventors: Anthony F. Jacobine, John G. Woods, Scott Senuta, David P. Dworak, Debora E. Duch, John Mazzullo
  • Patent number: 8865847
    Abstract: Olefin polymerization is carried out with a single site polymerization catalyst in the presence of a continuity additive. The continuity additive is a cocktail containing one or more dialkanolamide derived from a fatty acid, an oil soluble sulfonic acid and a dialkanolamine.
    Type: Grant
    Filed: April 19, 2012
    Date of Patent: October 21, 2014
    Assignee: Nova Chemicals (International) S.A
    Inventors: Peter Phung Minh Hoang, Benjamin Milton Shaw, Andy Mak
  • Publication number: 20140303333
    Abstract: The present application, relates to iron bisphenolate complexes and methods of use and synthesis thereof. The iron complexes are prepared from tridentate or tetradentate ligands of Formula I: wherein R1 and R2 are as defined herein. Also provided are methods and processes of using the iron bisphenolate complexes as catalysts in cross-coupling reactions and in controlled radical polymerizations.
    Type: Application
    Filed: October 15, 2012
    Publication date: October 9, 2014
    Inventors: Michael P. Shaver, Christopher M. Kozak
  • Patent number: 8809221
    Abstract: The present invention discloses new class of nitrogen containing external donor systems. These donor systems are used in titanium supported on magnesium dichloride pro-catalyst system for polymerization of propylene. The external donor systems of the present invention in combination with silane show the kinetics control for diester catalyst polymerization process along with stereo regularity control of product. The polypropylene produced using nitrogen containing external donor systems of the present invention have broad molecular weight distribution.
    Type: Grant
    Filed: May 7, 2012
    Date of Patent: August 19, 2014
    Assignee: Reliance Industries Limited
    Inventors: Harshad Ramdas Patil, Priyanshu Bharatkumar Vyas, Virendrakumar Gupta
  • Patent number: 8809473
    Abstract: A method for altering the polymer architecture of ethylene copolymers made with a supported phosphinimine polymerization catalyst. The method involves changing the amount of a catalyst modifier added to a reactor separately from or together with a supported phosphinimine polymerization catalyst.
    Type: Grant
    Filed: September 16, 2011
    Date of Patent: August 19, 2014
    Assignee: Nova Chemicals (International) S.A.
    Inventors: Peter Phung Minh Hoang, Benjamin Milton Shaw, Patrick Lam, Victoria Ker, Cliff Robert Baar
  • Publication number: 20140100343
    Abstract: Ethylene copolymers having a relatively high melt flow ratio and a multimodal profile in a temperature rising elution fractionation (TREF) plot are disclosed. The copolymers can be made into film having good dart impact values and good stiffness properties under decreased extruder pressures.
    Type: Application
    Filed: December 12, 2013
    Publication date: April 10, 2014
    Applicant: NOVA Chemicals (International) S.A.
    Inventors: Victoria Ker, Patrick Lam, Yan Jiang, Peter Phung Minh Hoang, Charles Ashton Garret Carter, Darryl J. Morrison
  • Patent number: 8664343
    Abstract: A polymerization catalyst composition for preparing cis 1,4-polydienes is provided. The catalyst composition comprises (a) a metal-containing compound, said metal being a transition metal or a lanthanide metal; (b) a carbene, (c) an alkylating agent, and optionally (d) a halogen-containing compound with the proviso that the halogen-containing compound must be present when none of the metal-containing compound and the alkylating agent contain a labile halogen atom. Also provided is a process for producing a polydiene comprising reacting a conjugated diene in the presence of the polymerization catalyst composition.
    Type: Grant
    Filed: June 9, 2009
    Date of Patent: March 4, 2014
    Assignee: Bridgestone Corporation
    Inventors: Zengquan Qin, Jason T. Poulton
  • Patent number: 8648001
    Abstract: A catalyst for polymerization of olefins formed from (A) a solid catalyst component containing magnesium, titanium, halogen, and an electron donor compound, (B) an organoaluminum compound shown by the formula, R6pAlQ3-p, and (C) an aminosilane compound shown by the formula, R3nSi(NR4R5)4-n; and a process for producing a catalyst for polymerization of olefins in the presence of the catalyst are provided. A novel aminosilane compound, a catalyst component for polymerization of olefins having a high catalytic activity, capable of producing polymers with high stereoregularity in a high yield, and exhibiting an excellent hydrogen response, a catalyst, and a process for producing olefin polymers using the catalyst are provided.
    Type: Grant
    Filed: November 4, 2011
    Date of Patent: February 11, 2014
    Assignee: Toho Titanium Co., Ltd.
    Inventors: Motoki Hosaka, Takefumi Yano, Maki Sato, Kohei Kimura
  • Publication number: 20130345377
    Abstract: Ethylene copolymers having a relatively high melt flow ratio and a multimodal profile in a temperature rising elution fractionation (TREF) plot are disclosed. The copolymers can be made into film having good dart impact values and good stiffness properties under decreased extruder pressures.
    Type: Application
    Filed: June 14, 2013
    Publication date: December 26, 2013
    Applicant: NOVA CHEMICALS (INTERNATIONAL) S.A.
    Inventors: Victoria Ker, Patrick Lam, Yan Jiang, Peter Phung Minh Hoang, Darryl J. Morrison, Charles Ashton Garret Carter
  • Patent number: 8569427
    Abstract: Methods of forming polymer material from rosin-derived material are provided. For example, a plurality of functionalized resin acids having a polymerizable functional group via controlled living polymerization can be polymerized into the polymeric material such that each polymer defines a functional end group and the polymeric material has a polydispersity index of about 1 to about 1.5. The resulting polymers are also described.
    Type: Grant
    Filed: October 8, 2010
    Date of Patent: October 29, 2013
    Assignee: University of South Carolina
    Inventor: Chuanbing Tang
  • Publication number: 20130274426
    Abstract: The present invention provides a dental curable composition which has excellent curability and which cures into a cured product that is less susceptible to discoloration by hydrogen sulfide in an oral environment. The present invention is a dental curable composition containing: a polymerizable monomer (a) having an acidic group, as a polymerizable monomer component; and a copper compound (b) and a benzotriazole compound (c) represented by the following general formula (1) and/or a benzimidazole compound (c) represented by the following general formula (2), as polymerization initiator components (symbols used in the formulae are as described in the description).
    Type: Application
    Filed: December 20, 2011
    Publication date: October 17, 2013
    Applicant: KURARAY NORITAKE DENTAL INC.
    Inventors: Mariko Sugiura, Mitsuru Takei
  • Patent number: 8551903
    Abstract: Disclosed is a process for producing a procatalyst composition having an amide ester internal electron donor. The process includes pre-halogenating a procatalyst precursor before reaction with the amide ester and forming the procatalyst composition. Ziegler-Natta catalyst compositions containing the present procatalyst composition exhibit improved catalyst activity and/or improved catalyst selectivity and produce propylene-based olefins with broad molecular weight distribution.
    Type: Grant
    Filed: February 24, 2011
    Date of Patent: October 8, 2013
    Assignee: Dow Global Technologies LLC
    Inventors: Linfeng Chen, Clark C. Williams, Tak W. Leung, Tao Tao, Kuanqiang Gao, James X. Shu
  • Patent number: 8541333
    Abstract: A catalyst component for olefin polymerization comprising an ?-cyanosuccinate compound as an internal electron donor, a catalyst comprising the catalyst component, and use of the catalyst in olefin polymerization. When used in propylene polymerization, the catalyst can exhibit good catalytic activity and good hydrogen response, and the resulting polymer can have a good isotacticity and a good molecular weight distribution.
    Type: Grant
    Filed: August 13, 2010
    Date of Patent: September 24, 2013
    Assignees: China Petroleum & Chemical Corporation, Beijing Research Institute of Chemical Industry, China Petroleum & Chemical Corporation
    Inventors: Lunjia Xie, Yongtai Ling, Yu Tian, Zaixing Feng, Siyuan Zhao, Qing Hu, Zhufang Sun, Yu Kang
  • Publication number: 20130245216
    Abstract: SET-LRP polymerization of acrylic monomers under acidic conditions is described. The source of the acidity may be the solvent (e.g., an acetic acid-containing solvent) or in the monomer content (e.g., acrylic acid or methacrylic acid, optionally in combination with other monomers such as methyl methacrylate).
    Type: Application
    Filed: July 22, 2011
    Publication date: September 19, 2013
    Applicants: THE TRUSTEES OF THE UNIVERSITY OF PENNSYLVANIA, ROHM AND HAAS COMPANY
    Inventors: Antony K. Van Dyk, Susan J. Fitzwater, Sven Fleischmann, Virgil Percec
  • Publication number: 20130197175
    Abstract: In a method for polymerizing a (meth)acrylic monomer by living radical polymerization in the presence of a transition metal complex catalyst, the combined use of a multidentate amine (A), a base (B) and a reducing agent (C) makes it possible to achieve a rapid polymerization reaction and high monomer conversion rate and obtain a polymer having a narrow molecular weight distribution when 5-30 ppm by weight of copper atoms and a mole amount of 7 mmol % or less of multidentate amine (A) are used, each based on the total amount of (meth)acrylic monomer introduced.
    Type: Application
    Filed: July 25, 2011
    Publication date: August 1, 2013
    Applicant: KANEKA CORPORATION
    Inventors: Yasunaka Kato, Kenichi Yoshihashi
  • Patent number: 8466081
    Abstract: Disclosed are halogenated amide esters that are suitable as internal electron donors in procatalyst compositions. Ziegler-Natta catalyst compositions containing the present procatalyst compositions exhibit improved catalyst activity and/or improved catalyst selectivity and produce propylene-based olefins with broad molecular weight distribution.
    Type: Grant
    Filed: February 24, 2011
    Date of Patent: June 18, 2013
    Assignee: Dow Global Technologies LLC
    Inventors: Linfeng Chen, Tak W. Leung, Tao Tao, Kuanqiang Gao, James X. Shu
  • Publication number: 20130144018
    Abstract: The present invention generally relates to a process that copolymerizes two or more polymerizable olefins, and to cataclyst comprising a metal-ligand complex (precatalyst). The present invention also generally relates to ligands useful for preparing the metal-ligand complex.
    Type: Application
    Filed: August 24, 2011
    Publication date: June 6, 2013
    Applicant: DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Jerzy Klosin, Pulikkottil J. Thomas, Carl N. Iverson, Nermeen W. Aboelella, Kevin A. Frazier
  • Publication number: 20130123444
    Abstract: The present invention generally relates to a new method of polymerizing ethylene. In one embodiment, the present invention relates to compounds utilized in the polymerization of ethylene and to a synthesis/polymerization method that uses same. In another embodiment branched polyethylene is synthesized from an ethylene monomer using, in this embodiment, at least one nickel iminophosphonamide (PN2) complex. In still another embodiment, the reaction of (phenyl) (triphenylphosphine) (diphenyl-bis (trimethylsilylimino) phosphorato)-nickel, with Rh(acac) (C2H4)2 and ethylene yield a branched polyethylene. In an alternative of this embodiment, the reaction of (phenyl) (triphenylphosphine) (methyl-cis(trimethylsilyl)amino-bis(trimethylsilylimino) phosphorato)-nickel and ethylene, with or without Ni(COD)2, yields a branched polyethylene.
    Type: Application
    Filed: November 2, 2012
    Publication date: May 16, 2013
    Applicant: THE UNIVERSITY OF AKRON
    Inventor: The University of Akron
  • Patent number: 8436094
    Abstract: A process of controlled radical polymerization, and products made therefrom is disclosed. The process includes performing controlled radical polymerization on a composition comprising a polymerizable compound, an initiator, a ligand, and a catalyst; permitting the controlled radical polymerization reaction to proceed until a desired level of conversion is attained, but prior to complete conversion to obtain an intermediate polymerization product; and further reacting the intermediate polymerization product with a reactant having a cluster of multiple reactive sites to provide a polymer reaction product having a cluster of pendent multiple reactive sites adjacent to said terminal ends of said polymer reaction product.
    Type: Grant
    Filed: August 25, 2010
    Date of Patent: May 7, 2013
    Assignee: Henkel Corporation
    Inventors: Roderick Coffey, Joel Schall, John G. Woods, Anthony F. Jacobine
  • Patent number: 8404788
    Abstract: Embodiments of the polymerization process of the present invention are directed to polymerizing free radically polymerizable monomers in the presence of a polymerization medium initially comprising at least one transition metal catalyst and an atom transfer radical polymerization initiator. The polymerization medium may additionally comprise a reducing agent. The reducing agent may be added initially or during the polymerization process in a continuous or intermittent manner. The polymerization process may further comprises reacting the reducing agent with at least one of the transition metal catalyst in an oxidized state and a compound comprising a radically transferable atom or group to form a compound that does not participate significantly in control of the polymerization process.
    Type: Grant
    Filed: February 14, 2011
    Date of Patent: March 26, 2013
    Assignee: Carnegie Mellon University
    Inventors: Krzysztof Matyjaszewski, Lindsay Bombalski, Wojciech Jakubowski, Ke Min, Nicolay V. Tsarevsky, James Spanswick
  • Patent number: 8378041
    Abstract: The present invention relates to methods for preparing degradable model networks from any monomer functionality with any degradation methodology. It is based on the use of Atom-Transfer Radical Polymerization CLICK chemistry and a tetrafunctional initiator having terminal halogen groups to form the desired product.
    Type: Grant
    Filed: January 30, 2009
    Date of Patent: February 19, 2013
    Assignee: The Trustees of Columbia University in the City of New York
    Inventors: Jeremiah Johnson, Jeffrey T. Koberstein, Nicholas J. Turro
  • Patent number: 8338550
    Abstract: A ring-opening metathesis polymerization (ROMP) reaction is disclosed in which a cyclic alkene compound is subjected to ROMP using a ruthenium ROMP catalyst having heterocyclic ligands in the presence of a compound from which such ligands may be derived. The process includes the step of adding sufficient of an acyclic alkene having a carbon-carbon double bond capable of reacting with the catalytic metal moieties attached to the living end of each of the polymer chains generated in the ROMP reaction to end cap the polymer chains and to generate a olefin metathesis catalyst. The process includes reiterating the polymerization steps by adding further amounts of a cyclic alkene compound. The catalyst may be generated in situ from a precursor compound by the addition of a compound from which heterocyclic ligands may be derived by interaction with the precursor compound.
    Type: Grant
    Filed: July 20, 2011
    Date of Patent: December 25, 2012
    Assignee: Henkel AG & Co. KGaA
    Inventors: Ezat Khosravi, Alan M. Kenwright, Zhanru Yu, David M. Haigh, Lois Hobson
  • Publication number: 20120316297
    Abstract: Olefin polymerization is carried out with a supported phosphinimine catalyst which has been treated with a long chain substituted amine compound.
    Type: Application
    Filed: September 19, 2011
    Publication date: December 13, 2012
    Inventors: Peter Phung Minh Hoang, Benjamin Milton Shaw, Victoria Ker, Cliff Robert Baar, Lee Douglas Henderson, Charles Ashton Garret Carter, Yan Jiang
  • Publication number: 20120316301
    Abstract: A method for altering the polymer architecture of ethylene copolymers made with a supported phosphinimine polymerization catalyst. The method involves changing the amount of a catalyst modifier added to a reactor separately from or together with a supported phosphinimine polymerization catalyst.
    Type: Application
    Filed: September 16, 2011
    Publication date: December 13, 2012
    Inventors: Peter Phung Minh Hoang, Benjamin Milton Shaw, Patrick Lam, Victoria Ker, Cliff Robert Baar
  • Patent number: 8273823
    Abstract: The invention is directed to a microemulsion polymerization comprising adding a polymerization catalyst precursor, such as a transition metal complex in the higher of two accessible oxidation states, an ATRP initiator, and an organic solvent to an aqueous solution to form an emulsion. Radically polymerizable monomers and a reducing agent may then be added to the emulsion. The reducing agent converts the catalyst precursor to a catalyst for polymerization of the first monomer from the initiator. In certain embodiments the organic solvent may comprise radically polymerizable monomers. The aqueous solution may comprise a surfactant.
    Type: Grant
    Filed: August 23, 2006
    Date of Patent: September 25, 2012
    Assignee: Carnegie Mellon University
    Inventors: Krzysztof Matyjaszewski, Ke Min
  • Publication number: 20120196995
    Abstract: A process for preparing a polydiene, the process comprising the step of: polymerizing conjugated diene monomer in the presence of a (hydrocarbyloxyhydrocarbyl)amine, where said step of polymerizing employs a lanthanide-based catalyst system.
    Type: Application
    Filed: January 31, 2012
    Publication date: August 2, 2012
    Inventors: Zengquan QIN, Jason T. POULTON
  • Patent number: 8188195
    Abstract: A method for preparing a functionalized polymer, the method comprising the steps of: (i) polymerizing monomer with a coordination catalyst to form a reactive polymer; and (ii) reacting the reactive polymer with a nitroso compound.
    Type: Grant
    Filed: December 31, 2008
    Date of Patent: May 29, 2012
    Assignee: Bridgestone Corporation
    Inventor: Steven Luo
  • Patent number: 8147985
    Abstract: A method for coating a diamond where an initiation site is provided on the diamond surface or initiation of a living polymerization on the site and the initiation site is reacted with a monomer having a site the reacts with and bonds to the initiation site to form an chemically attached chain with a new initiation site on the chain for further reaction with a monomer. An article with a coating upon a diamond surface, the coating the reaction product of a living polymerization reaction with initiation site on the diamond surface.
    Type: Grant
    Filed: May 10, 2009
    Date of Patent: April 3, 2012
    Inventors: Matthew R. Linford, Li Yang, Landon Wiest
  • Publication number: 20120059083
    Abstract: To provide a polymerizable composition excellent in curability under a humid condition such as in an oral cavity, the polymerizable composition includes a first component and a second component, the first component includes cumene hydroperoxide as a peroxide in (meth)acrylate, the second component includes a thiourea derivative as a reductant and a vanadium compound as a polymerization accelerator in (meth)acrylate and the vanadium compound is preferably one or more kinds selected from vanadium acetylacetonate, vanadyl acetylacetonate, vanadyl stearate, vanadium naphthenate, and vanadium benzoyl acetonate.
    Type: Application
    Filed: August 26, 2011
    Publication date: March 8, 2012
    Applicant: GC Corporation
    Inventors: Hideki TOKUI, Hideki YARIMIZU
  • Patent number: 8043990
    Abstract: The invention relates to a catalyst system for polymerization of olefins, the catalyst system comprising a titanium-containing procatalyst carrying internal electron donor(s), an organoaluminium cocatalyst and a mixture of external electron donors, the mixture comprising a carboxylic acid ester or derivatives thereof, an alkoxy silane and a nitrogen based compound. The invention also relates to a process for polymerization of olefin(s) and to the polyolefin synthesized by the process.
    Type: Grant
    Filed: August 25, 2008
    Date of Patent: October 25, 2011
    Assignee: Reliance Industries Limited
    Inventors: Virendrakumar Gupta, Harshad Ramdas Patil, Dhananjay Ghelabhai Naik, Sukhdeep Kaur, Gurmeet Singh, Priyanshu Bharatkumar Vyas
  • Patent number: 8017706
    Abstract: The present invention relates to a novel iron complex having a cyclic amine compound as a ligand and a method for producing polymers by polymerizing a radical polymerizable monomer in the presence of the iron complex and a radical generator. The problem for the present invention is providing a method capable of producing a polymer or block copolymer having a chemically convertible functional group at the end from a radical polymerizable monomer and providing a method for recovering the iron complex in a solvent with a high recovery rate after the polymerization reaction. This problem is solved by providing a novel iron complex, a method for producing a polymer in the presence of a radical polymerization initiator that uses the iron complex as a polymerization catalyst and a method for simply and easily recovering the iron complex.
    Type: Grant
    Filed: March 10, 2008
    Date of Patent: September 13, 2011
    Assignee: DIC Corporation
    Inventors: Hidetomo Kai, Akane Sasamoto, Hitoshi Hayakawa
  • Patent number: 8017708
    Abstract: A modified Ziegler-Natta catalyst system, a method for preparing the catalyst system, and a process for polymerizing an olefin in the presence of the catalyst system are disclosed. The catalyst system comprises a titanium compound, an aluminum compound, and a nitroso compound. Improved polyolefin properties, such as high molecular weight, are obtained.
    Type: Grant
    Filed: October 2, 2009
    Date of Patent: September 13, 2011
    Assignee: Equistar Chemicals, LP
    Inventors: Sandor Nagy, Joachim T. M. Pater, Giampiero Morini
  • Publication number: 20110184137
    Abstract: A polymerization catalyst composition for preparing cis 1,4-polydienes is provided. The catalyst composition comprises (a) a metal-containing compound, said metal being a transition metal or a lanthanide metal; (b) a carbene, (c) an alkylating agent, and optionally (d) a halogen-containing compound with the proviso that the halogen-containing compound must be present when none of the metal-containing compound and the alkylating agent contain a labile halogen atom. Also provided is a process for producing a polydiene comprising reacting a conjugated diene in the presence of the polymerization catalyst composition.
    Type: Application
    Filed: June 9, 2009
    Publication date: July 28, 2011
    Inventors: Zengquan Qin, Jason T. Poulton
  • Publication number: 20110105703
    Abstract: The invention relates to a novel iron complex bearing a cyclic amine as ligand; and a process for the production of polymers by polymerizing a radical-polymerizable monomer in the presence of the iron complex and a radical generator. The invention aims at providing a process by which a polymer having a chemically convertible functional group at the end can be produced from a radical-polymerizable monomer and which permits the production of a block copolymer and a process for recovering, after polymerization, an iron complex into a solvent at a high recovery ratio. The aim can be solved by providing a novel iron complex, a process for producing a polymer in the presence of a radical polymerization initiator by using the iron complex as the polymerization catalyst, a process for the production of a block copolymer which is subsequent to the polymerization for producing the above polymer, and a process for recovering the iron complex easily and simply.
    Type: Application
    Filed: March 10, 2008
    Publication date: May 5, 2011
    Applicant: DIC Corporatio
    Inventors: Hidetomo Kai, Akane Sasamoto, Hitoshi Hayakawa
  • Patent number: 7932330
    Abstract: A process for producing a modified particle, which comprises the step of contacting a compound (a) defined by the formula, M1L13, a compound (b) defined by the formula, R1t-1TH, a compound (c) or (e) defined by the formula, R2m-uM2(OH)u or R24-nJ(OH)n, respectively, and a particle (d) with one another; a carrier comprising a modified particle produced by said process; a catalyst component (A) comprising a modified particle produced by said process; a process for producing a catalyst for addition polymerization, which comprises the step of contacting said catalyst component (A), a transition metal compound (B) and an optional organoaluminum compound (C) with one another; and a process for producing an addition polymer, which comprises the step of addition polymerizing an addition-polymerizable monomer in the presence of a catalyst for addition polymerization produced by said process.
    Type: Grant
    Filed: April 7, 2008
    Date of Patent: April 26, 2011
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Hideki Oshima, Makoto Satoh
  • Patent number: 7932325
    Abstract: A curable composition is described comprising a Michael donor component, a polyacryl component, and 1) an ethylenically unsaturated monomer having a reactive azlactone functional group, or 2) an ethylenically unsaturated monomer having a reactive ring-opened azlactone functional group. A telechelic polymer that is the reaction product of these components is also described.
    Type: Grant
    Filed: December 2, 2009
    Date of Patent: April 26, 2011
    Assignee: 3M Innovative Properties Company
    Inventors: Kevin M. Lewandowski, Duane D. Fansler, Babu N. Gaddam
  • Patent number: 7928172
    Abstract: Compositions useful for activating catalysts for olefin polymerization are-provided. The compositions are derived from at least: a) compound derived from at least (i) carrier having at least one pair of hydrogen bonded hydroxyl groups, (ii) organoaluminum compound, and (iii) Lewis base, such that each of a majority of aluminum atoms in the organoaluminum compound forms chemical bonds with at least two oxygen atoms from the at least one pair of hydrogen bonded hydroxyl groups; and b) Bronsted acid, wherein the molar ratio of the Bronsted acid to the organoaluminum compound is less than or equal to about 2:1.
    Type: Grant
    Filed: December 4, 2007
    Date of Patent: April 19, 2011
    Assignee: Albemarle Corporation
    Inventors: Lubin Luo, Katherine Wu, Steven P. Diefenbach
  • Publication number: 20110065875
    Abstract: Polymerization processes of the present invention comprise low catalyst concentration. Embodiments include a polymerization process comprising polymerizing free radically (co)polymerizable monomers in a polymerization medium comprising one or more radically (co)polymerizable monomers, a transition metal catalyst complex capable of participating in a one electron redox reaction with an ATRP initiator; a free radical initiator; and an ATRP initiator; (wherein the concentration of transition metal catalyst complex in the polymerization medium is less than 100 ppm). Further embodiments include a polymerization process, comprising polymerizing one or more radically (co)polymerizable monomers in the presence of at least one transition metal catalyst complex; an ATRP initiator; and a reducing agent; wherein the transition metal catalyst complex is present at less than 10?3 mole compared to the moles of radically transferable atoms or groups present on the ATRP initiator.
    Type: Application
    Filed: November 18, 2010
    Publication date: March 17, 2011
    Inventors: Krzysztof Matyjaszewski, Wojciech Jakubowski, James Spanswick
  • Patent number: 7893174
    Abstract: Embodiments of the polymerization process of the present invention are directed to polymerizing free radically polymerizable monomers in the presence of a polymerization medium initially comprising at least one transition metal catalyst and an atom transfer radical polymerization initiator. The polymerization medium may additionally comprise a reducing agent. The reducing agent may be added initially or during the polymerization process in a continuous or intermittent manner. The polymerization process may further comprise reacting the reducing agent with at least one of the transition metal catalyst in an oxidized state and a compound comprising a radically transferable atom or group to form a compound that does not participate significantly in control of the polymerization process.
    Type: Grant
    Filed: March 7, 2005
    Date of Patent: February 22, 2011
    Assignee: Carnegie Mellon University
    Inventors: Krzysztof Matyjaszewski, Lindsay Bombalski, Wojciech Jakubowski, Ke Min, James Spanswick, Nicolay V. Tsarevsky
  • Publication number: 20110040051
    Abstract: A catalyst component for olefin polymerization comprising an ?-cyanosuccinate compound as an internal electron donor, a catalyst comprising the catalyst component, and use of the catalyst in olefin polymerization. When used in propylene polymerization, the catalyst can exhibit good catalytic activity and good hydrogen response, and the resulting polymer can have a good isotacticity and a good molecular weight distribution.
    Type: Application
    Filed: August 13, 2010
    Publication date: February 17, 2011
    Inventors: Lunjia XIE, Yongtai Ling, Yu Tian, Zaixing Feng, Siyuan Zhao, Qing Hu, Zhufang Sun, Yu Kang
  • Patent number: 7884161
    Abstract: The present invention provides a method for preparation of an 1-alkene-acrylate based copolymer comprising a step of a radical polymerization reaction of 1-alkene and acrylate based monomer under presence of a metal oxide or Lewis acid, and a method for preparation of an alkene-acrylate based copolymer comprising reacting alkene with an acrylate based monomer under presence of a metal oxide. In the method of preparation according to the present invention, the process is simple and properties of the copolymer can be easily controlled by preparing the copolymer in a mild condition of 100° C. or less and 200 bar or less. In addition, the amount of the polar group of the copolymer prepared by the method is so high that the copolymer can be used for transparent optical products.
    Type: Grant
    Filed: March 13, 2007
    Date of Patent: February 8, 2011
    Assignee: LG Chem, Ltd.
    Inventors: Yoo-young Jung, Byoung-ho Jeon, Bae-kun Shin, Ki-soo Lee, Yong-gyu Han
  • Patent number: 7871952
    Abstract: A modified Ziegler-Natta catalyst system, a method for preparing the catalyst system, and a process for polymerizing an olefin in the presence of the catalyst system are disclosed. The catalyst system comprises a titanium or vanadium compound, an aluminum compound, and a 2-hydroxypyridine N-oxide. Improved properties such as increased molecular weight are obtained.
    Type: Grant
    Filed: October 2, 2009
    Date of Patent: January 18, 2011
    Assignee: Equistar Chemicals, LP
    Inventors: Sandor Nagy, Joachim T. M. Pater, Giampiero Morini