Organic Nitrogen Compound Contains An Azo Group, I.e., -n=n- Patents (Class 525/260)
  • Patent number: 9926400
    Abstract: Radical polymerization techniques can be used to polymerize monomers that include a class of hydroxyaryl compounds so as to provide polymers that exhibit desirable properties including, but not limited to, reduced hysteresis. Compositions such as vulcanizates in which such polymers can be utilized and products such as tire components that incorporate and/or are manufactured from such compositions also are provided.
    Type: Grant
    Filed: July 1, 2010
    Date of Patent: March 27, 2018
    Assignee: Bridgestone Corporation
    Inventors: Yuan-Yong Yan, Zengquan Qin, Xiao-Dong Pan
  • Patent number: 9657191
    Abstract: A UV or thermally curable, low odor, liquid coating composition, which readily applied at room temperature without heating comprising: a) a reactive acrylic based polymer comprising pendant acrylate or methacrylate groups; b) reactive unsaturated monomers, typically acrylic or methacrylic monomers, often polyfunctional monomers; c) a thermal or UV activated radical initiator; and in many embodiments, d) an inert and non-polar wax or viscous oil, e.g., a paraffinic material, and e) optionally a tertiary amine, for example, a tertiary amine accelerator used with a thermally activated radical initiator. Also provided are substrates coated with the composition of the invention, for example, flooring coated with the inventive composition.
    Type: Grant
    Filed: December 29, 2014
    Date of Patent: May 23, 2017
    Assignee: Dur-A-Flex, Inc.
    Inventors: Ming Zhao, David Royston Hughes, Murty Venkata Bhamidipati
  • Patent number: 9481740
    Abstract: A process for producing high impact polystyrene including feeding at least one vinyl aromatic monomer, an elastomer, and a free radical initiator to a first linear flow reactor to form a reaction mixture. Polymerizing the reaction mixture in the first linear flow reactor to a point below the point at which phase inversion occurs to produce a first polymerization mixture and feeding the first polymerization mixture from the first linear flow reactor to a second linear flow reactor. Polymerizing the reaction mixture in the second linear flow reactor to at least a phase inversion point of the mixture to produce a second polymerization mixture and feeding the second polymerization mixture from the second linear flow reactor to at least a third linear flow reactor for post-inversion polymerization of the second polymerization mixture. The product stream can have an ESCR value of at least 10% toughness retained with less than 10 wt % rubber content.
    Type: Grant
    Filed: March 5, 2015
    Date of Patent: November 1, 2016
    Assignee: Fina Technology, Inc.
    Inventors: Likuo Sun, Jose Sosa, Serge Eon, Carlos Corleto, Scott Cooper
  • Publication number: 20140249274
    Abstract: A high functionality macromer that is the reaction product of (1) a polyisocyanate having an NCO group content of about from about 10% to about 33% having a functionality greater than 2, (2) at least one alcohol with reactive unsaturation, and (3) a hydroxyl group-containing polyether having an OH number of from 9 to 60 and a functionality of from 1 to 6 is used to produce a pre-formed stabilizer that is used to produce a high solids content polymer polyol.
    Type: Application
    Filed: March 4, 2013
    Publication date: September 4, 2014
    Applicant: Bayer MaterialScience LLC
    Inventor: Rick L. Adkins
  • Publication number: 20140213731
    Abstract: A supercritical carbon dioxide-assisted solid-phase grafting modification method for polypropylene, comprises swelling polypropylene for 0.5 to 10 hours in supercritical carbon dioxide having dissolved vinyl monomer and an initiator, then slowly relieving the pressure; moving the polypropylene that has undergone the swelling process into a reaction kettle, and adding xylene as an interface agent, the mass of xylene being 1% of the polypropylene; increasing the temperature to between 65° C. and 165° C. under normal pressure, and reacting 1 to 10 hours to obtain modified polypropylene; the swelling permeation temperature during the swelling process is from 31° C. to 60° C., the swelling pressure is from 7.5 to 12 MPa; the initiator is an azo compound or a peroxide. In the present method, the grafting rate reaches 5.4%, the thermal property, polarity, and mechanical property all improve substantially, and hydrophilic property is substantially enhanced.
    Type: Application
    Filed: April 13, 2012
    Publication date: July 31, 2014
    Applicant: Petrochina Company Limited
    Inventors: Wenyan Wang, Mingqiang Zhang, Jian Wang, Dengfei Wang, Enguang Zou, Liping Qiu, Qun Dong, Jinxian Jiang, Jianying Ma, Tengjie Ge, Yanjie An, Deying Zhang, Bo Li, Gujyue Guo, Shihua Wang, He Ren, Lirong Jing, Haifeng Guo
  • Publication number: 20140194557
    Abstract: To provide a novel polymer having an excellent non-specific adsorption inhibitory effect, a surface-hydrophilizing agent comprising the polymer, and a method for producing a substrate having a hydrophilic surface. The polymer comprises a hydrophilic repeating unit having a sulfinyl group in a side chain thereof.
    Type: Application
    Filed: August 10, 2012
    Publication date: July 10, 2014
    Applicant: JSR CORPORATION
    Inventors: Naoki Hayashi, Toshihiro Ogawa, Shin-Ichirou Iwanaga, Kazuhiro Iso
  • Publication number: 20140170561
    Abstract: The invention provides a vinyl ether group-containing copolymer, preparation process and use thereof. The copolymer comprises of the structural units represented by the following general formulae I, II and III, wherein, R1 is O or HN, R2 is an alkyl group with a carbon atom number of 1-4, cyclohexyl or a group represented by the following general formula IV (m represents a positive integer of 1-3), n is a positive integer of 1-4, the molar numbers of the structural units represented by the general formulae I, H and III are x, y and z, respectively, and x:y:z=3-8:1-4:1-5, the weight average molecular weight of the copolymer is 5000-20000. A color light blocking agent added with the copolymer can increase sensitivity. Furthermore, the copolymer has solubility in an alkaline solution, and thus, the color light blocking agent added with the copolymer has a superior developing property.
    Type: Application
    Filed: December 11, 2013
    Publication date: June 19, 2014
    Applicant: BOE Technology Group Co., Ltd.
    Inventors: Lu Liu, Shi Shu, Yonglian Qi, Chuanxiang Xu
  • Patent number: 8546481
    Abstract: An aqueous dispersion containing a graft copolymer satisfying (a) to (e) and water: (a) a graft rate is 1 to 150% by mass, (b) a weight average molecular weight is 500 to 400000, (c) a molecular weight distribution is 1.5 to 4, (d) a main chain containing a monomer unit having a hydrophilic group and (e) an ?-olefin homopolymerization or ?-olefin/ethylene copolymerization side chain, wherein a mesopentad ratio [mmmm] of the polymerization chain is 30 to 80 mole %.
    Type: Grant
    Filed: January 27, 2009
    Date of Patent: October 1, 2013
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Shuji Machida, Takenori Fujimura, Ryo Aburatani
  • Publication number: 20130248488
    Abstract: The present invention relates to a diblock copolymer that may facilitate formation of a finer nano pattern, and be used for manufacture of an electronic device including a nano pattern or a bio sensor, and the like, a method for preparing the same, and a method for forming a nano pattern using the same, The diblock copolymer comprises a hard segment including at least one specific acrylamide-based repeat unit, and a soft segment including at least one (meth)acrylate-based repeat unit.
    Type: Application
    Filed: March 16, 2012
    Publication date: September 26, 2013
    Applicants: IUCF-HYU (Industry-University Cooperation Foundation Hanyang University), LG CHEM, LTD.
    Inventors: Yang-Kyoo Han, Je-Gwon Lee, Su-Hwa Kim
  • Patent number: 8507604
    Abstract: A graft copolymer satisfying (a) to (e): (a) a main chain derived from one or more monomers selected from (I) an acrylic acid, (II) a methacrylic acid, (III) a vinyl ester, (IV) a styrene and (V) a vinyl group-containing silane compound, at least one kind of the monomer having a crosslinkable functional group, (b) a side chain derived from a reactive homopolymer ?-olefin having a meso pentad fraction (mmmm) of from 30 to 80% by mol or a copolymer of 50% by mass or more of at least one ?-olefin, (c) a graft ratio of from 1 to 150% by mass, (d) a weight average molecular weight of from 500 to 400,000, and (e) a molecular weight distribution (Mw/Mn) of from 1.5 to 4.
    Type: Grant
    Filed: March 12, 2009
    Date of Patent: August 13, 2013
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Takenori Fujimura, Ryo Aburatani, Shuji Machida, Shinichi Nakamura
  • Publication number: 20130171566
    Abstract: An embodiment of the invention discloses an alkaline soluble resin and a method for preparing the same. The chemical formula of this alkaline soluble resin is shown in Formula I: wherein a is an integer of 1 to 5, b is an integer of 1 to 5, c is an integer of 1 to 10, d is an integer of 1 to 10, m is an integer of 1 to 30, n is an integer of 1 to 10, R is hydrogen, alkyl, alkoxy or acrylate; the alkaline soluble resin has a weight-average molecular weight of 3,500-35,000. The invention also discloses a light sensible resin composition comprising the alkaline soluble resin, as well as a colored photoresist for color filters comprising the aforementioned light sensible resin composition and a display element comprising this colored photoresist.
    Type: Application
    Filed: July 13, 2012
    Publication date: July 4, 2013
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Shi Shu, Chunmiao Zhou, Jianshe Xue, Jisheng Zhao, Xuelan Wang, Xiaoxiong Tian
  • Publication number: 20130045393
    Abstract: There is disclosed a process for preparing organic nano-particles comprising the steps of: (a) preparing a solution comprising an unsaturated polyester and/or a vinyl ester resin and a hydrophobic monomer; (b) dispersing the solution obtained in step (a) in an aqueous phase to form a stable emulsion where the aqueous phase is the continuous phase; and (c) using an initiator to cure the emulsion obtained in step (b) in the presence of a water soluble inhibitor to form a dispersion of nano-particles. The invention further provides organic nano-particles obtainable by the process according to the invention; various uses of said nano-particles; such as in paper, dye, toner and personal care compositions and topical medicaments comprising said nano-particles.
    Type: Application
    Filed: October 23, 2012
    Publication date: February 21, 2013
    Applicant: DSM IP ASSETS B.V.
    Inventor: DSM IP ASSETS B.V.
  • Publication number: 20110144268
    Abstract: Randomly branched polymers, such as homopolymers, copolymers, block copolymers and functionalized polymers are disclosed which may be formed by polymerizing a polymerizable monomer, such as styrene with a dithioester chain transfer agent which includes a polymerizable group. The reaction may be performed in one pot. The randomly branched polymer can have high molecular weight and broad molecular weight distribution.
    Type: Application
    Filed: August 11, 2009
    Publication date: June 16, 2011
    Applicant: The University of Akron
    Inventors: Judit Eva Puskas, Andrew John Heidenreich
  • Publication number: 20100125120
    Abstract: Described herein are substantially linear copolymeric compositions having at least two azide groups and at least two non-activated acetylene groups. The azide groups and the non-activated acetylene groups are reacted to cure the substantially linear copolymer composition. Also, described are methods of making and using such substantially linear copolymeric compositions.
    Type: Application
    Filed: November 14, 2008
    Publication date: May 20, 2010
    Inventors: Michael D. Crandall, Yvan A. Bogaert, Aron Y. Goodner, Werner M.A. Grootaert, Anthony P. Manzara
  • Patent number: 7714075
    Abstract: This invention concerns a free radical polymerization process, selected chain transfer agents employed in the process and polymers made thereby, in which the process comprises preparing polymer of general Formula (A) and Formula (B) comprising contacting: (i) a monomer selected from the group consisting of vinyl monomers (of structure CH2?CUV), maleic anhydride, N-alkylmaleimide, N-arylmaleimide, dialkyl fumarate and cyclopolymerizable monomers; (ii) a thiocarbonylthio compound selected from Formula (C) and Formula (D) having a chain transfer constant greater than about 0.1; and (iii) free radicals produced from a free radical source; the polymer of Formula (A) being made by contacting (i), (ii) C and (iii) and that of Formula (B) by contacting (i), (ii) D, and (iii); and (iv) controlling the polydispersity of the polymer being formed by varying the ratio of the number of molecules of (ii) to the number of molecules of (iii); wherein Q, R, U, V, Z, Z?, m, p and q are as defined in the text.
    Type: Grant
    Filed: July 3, 1997
    Date of Patent: May 11, 2010
    Assignee: Commonwealth Scientific and Industrial Research Organisation
    Inventors: Tam Phuong Le, Graeme Moad, Ezio Rizzardo, San Hoa Thang
  • Patent number: 7589155
    Abstract: A modified butyl rubber composition including a modified butyl rubber obtained by reacting a compound (a) having, in its molecule, a nitroxide free radical stable at an ordinary temperature in the presence of oxygen, a radical initiator (b), and a bifunctional or higher radical polymerizable monomer (c) or a modified butyl rubber composition containing a modified butyl rubber, obtained by reacting a compound (a) having, in its molecule, a nitroxide free radical stable at ordinary temperature in the presence of oxygen and a radical initiator (b), into which a bi- or more-functional radical polymerizable monomer (c) is compounded.
    Type: Grant
    Filed: October 20, 2006
    Date of Patent: September 15, 2009
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventors: Makoto Ashiura, Tetsuji Kawazura
  • Publication number: 20090215963
    Abstract: A thermoplastic elastomeric material includes a vulcanized rubber in a subdivided form surface-grafted with at least one vinyl polymer, wherein the amount of the surface-grafted vinyl polymer is not lower than 60% by weight, preferably not lower than 70% by weight, more preferably not lower than 80% by weight, with respect to the total weight of the surface-grafted vinyl polymer and the vulcanized rubber in a subdivided form.
    Type: Application
    Filed: August 4, 2004
    Publication date: August 27, 2009
    Inventors: Serena Coiai, Elisa Passaglia, Catherine Hirel, Francesco Ciardelli, Diego Tirelli, Emiliano Resmini, Franco Peruzzotti
  • Patent number: 7439302
    Abstract: A new underlayer composition that exhibits high etch resistance and improved optical properties is disclosed. The underlayer composition comprises a vinyl or acrylate polymer, such as a methacrylate polymer, the polymer comprising at least one substituted or unsubstituted naphthalene or naphthol moiety, including mixtures thereof. Examples of the polymer of this invention include: where each R1 is independently selected from an organic moiety or a halogen; each A is independently a single bond or an organic moiety; R2 is hydrogen or a methyl group; and each X, Y and Z is an integer of 0 to 7, and Y+Z is 7 or less. The organic moiety mentioned above may be a substituted or unsubstituted hydrocarbon selected from the group consisting of a linear or branched alkyl, halogenated linear or branched alkyl, aryl, halogenated aryl, cyclic alkyl, and halogenated cyclic alkyl, and any combination thereof.
    Type: Grant
    Filed: August 2, 2005
    Date of Patent: October 21, 2008
    Assignee: International Business Machines Corporation
    Inventors: Wu-Song Huang, Sean D. Burns, Mahmoud Khojasteh
  • Publication number: 20080161498
    Abstract: A polypropylene derivative is provided. The polypropylene derivative includes a reactive monomer grafted on polypropylene, with a grafting yield exceeding 5%. A method of preparing the polypropylene derivative is also disclosed. The method includes mixing a reactive monomer, polypropylene, and a compatibilizer in a twin screw extruder to prepare a polypropylene derivative with reactive monomers grafted thereon, with a grafting ratio exceeding 5%.
    Type: Application
    Filed: October 15, 2007
    Publication date: July 3, 2008
    Inventors: Lien Tai Chen, Chi-Wei Hsu, Tun-Fun Way, Jian-Lin Hua
  • Patent number: 7358308
    Abstract: A golf ball comprising a core, an outer cover layer, and, optionally, an intermediate layer disposed between the core and the outer cover layer is presently disclosed.
    Type: Grant
    Filed: July 1, 2005
    Date of Patent: April 15, 2008
    Assignee: Acushnet Company
    Inventors: David A. Bulpett, Derek A. Ladd
  • Patent number: 7235609
    Abstract: A thermoplastic olefin (TPO) composition comprises (1) a major amount by weight of (a) a substantially linear homopolymer or copolymer of a C2–C10 ?-olefin in major proportion to (b) a long chain branched a linear homopolymer or copolymer of a C2–C10 ?-olefin, (2) a minor amount by weight of a cross linkable elastomer, and (3) at least one thermally decomposing free radical generating agent present in an amount sufficient to promote an increase in melt strength of the composition over that of the melt strength of the linear homopolymer or copolymer of a C2–C10 ?-olefin alone and insufficient to substantially degrade the ?-olefinic polymers. The TPO composition is prepared by melt blending the components at a temperature sufficient to melt said homopolymers or copolymers of a C2–C10 ?-olefin and thermally decompose said agent. Articles are thermoformed from the thermoplastic olefin.
    Type: Grant
    Filed: January 14, 2004
    Date of Patent: June 26, 2007
    Inventors: Amitkumar Dharia, Jerry Wayne Rodrigue
  • Patent number: 7132485
    Abstract: The invention relates to a suspension polymerization process for the preparation of styrene-containing (co)polymers, wherein the process comprises the steps of continuously or semi-continuously dosing an initiator to the reaction mixture, said initiator having a specified half-life at the temperature of the reaction mixture to which it is dosed. The invention further relates to styrene based (co)polymer obtainable by said process, and to the use of said styrene (co)polymer in a shaping process.
    Type: Grant
    Filed: April 2, 2004
    Date of Patent: November 7, 2006
    Assignee: Akzo Nobel N.V.
    Inventors: Hendrikus Gerardus Boevenbrink, Frans Johannes Hoogesteger
  • Patent number: 7034079
    Abstract: A process for preparing a radial polymer comprising at least 3 polymeric arms and a central core comprising a polymerized di- or polyfunctional monomer, said process comprising the steps, (a) polymerizing at an elevated temperature, a charge comprising at least one free radical-polymerizable monomer to prepare a stabilized active polymer block (A) using a free radical polymerization process, wherein a stable free radical agent is employed during the polymerization, thereby preserving the stabilized active polymerization site at the terminus of the polymer; optionally (b) adding at least one additional free radical-polymerizable monomer, at least one of which is different from the monomers making up the first charge of monomers, to the stabilized active polymer block (A); and further reacting the mixture using a free radical process to effect copolymerization of said monomers, thereby preparing an A-B block copolymer having a stabilized active polymerization site at the terminus of the polymer; then (c) add
    Type: Grant
    Filed: March 19, 2002
    Date of Patent: April 25, 2006
    Assignee: The Lubrizol Corporation
    Inventors: Daniel C. Visger, Richard M. Lange
  • Patent number: 6875817
    Abstract: Separation of a variety of analytes that are polar, nonpolar and ionic using functionalized polymeric media is disclosed. Preformed rigid particles of highly crosslinked homopolymer of polyvinylidene compounds are functionalize using the residual vinyl groups onto which monovinyl compounds are covalently bonded through polymerization. The functionalization imparts desirable surface properties for separation applications such as liquid chromatography and solid phase extraction.
    Type: Grant
    Filed: August 21, 2001
    Date of Patent: April 5, 2005
    Assignee: Mallinckrodt Inc.
    Inventors: Nandkumar V. Deorkar, James Farina, Paul A. Bouis
  • Patent number: 6872779
    Abstract: The invention provides a flocculant which in sludge dewatering gives flocs having an excellent balance among flocculating strength, filtration rate and moisture content, and a method of sludge dewatering with the flocculant. Namely, the flocculant is a polymeric flocculent which contains a copolymer having alkoxyalkyl units or a poly(alkylene oxide) unit and further having water-soluble monomer units; and the method of sludge dewatering includes adding the polymeric flocculant to a sludge after or without adding an inorganic flocculent or an organic cationic compound thereto and then dewatering the sludge.
    Type: Grant
    Filed: December 20, 2000
    Date of Patent: March 29, 2005
    Assignee: Toagosei Co., Ltd.
    Inventors: Yoshio Mori, Minoru Azuchi
  • Publication number: 20040228832
    Abstract: Polyazo compounds, which include low molecular weight drugs having a carboxylic acid group and an amine, thiol, alcohol or phenol group within their structure, formed into polymeric drug delivery systems are provided. Also provided are methods of producing polymeric drug delivery systems having these polyazo compounds as well as methods of administering low molecular weight drugs to a host via the polymeric drug delivery systems.
    Type: Application
    Filed: November 10, 2003
    Publication date: November 18, 2004
    Inventor: Kathryn E. Uhrich
  • Publication number: 20040110856
    Abstract: A method of forming features on substrates by imprinting is provided. The method comprises: (a) forming a polymer solution comprising at least one polymer dissolved in at least one polymerizable monomer; and (b) depositing the polymer solution on a substrate to form a liquid film thereon; and then either: (c) curing the liquid film by causing the monomer(s) to polymerize and optionally cross-linking the polymer(s) to thereby form a polymer film, the polymer film having a glass transition temperature (Tg); and imprinting the polymer film with a mold having a desired pattern to form a corresponding negative pattern in the polymer film, or (d) imprinting the liquid film with the mold and curing it to form the polymer film. The temperature of imprinting is as little as 10° C. above the Tg, or even less if the film is in the liquid state. The pressure of the imprinting can be within the range of 100 to 500 psi.
    Type: Application
    Filed: December 4, 2002
    Publication date: June 10, 2004
    Inventors: Jung Gun Young, Sivapackia Ganapathiappan, Yong Chen, Richard Stanley Williams
  • Publication number: 20040024132
    Abstract: A free radical polymerization process suitable for synthesizingpolymers is disclosed. The process utilizes novel sulfur based chain transfer agents and is widely compatible over a range of monomers and reaction conditions. Novel polymers having low polydispersity and predictable specific polymer architecture amd molecular weight are produced by the process. The polymers produced by the process are suitable for use as binders in automotive OEM and refinish coatings.
    Type: Application
    Filed: July 18, 2003
    Publication date: February 5, 2004
    Inventors: John Chiefari, Roshan Tyrrel Mayadunne, Graeme Moad, Ezio Rizzardo, San Hoa Thang
  • Patent number: 6646045
    Abstract: Thermoplastic molding compositions containing graft polymers produced with different initiator systems are disclosed. The compositions are distinguished by a combination of good toughness and reduced opacity. As a result, appreciably smaller quantities of pigment are needed to color the molding composition.
    Type: Grant
    Filed: November 30, 2001
    Date of Patent: November 11, 2003
    Assignee: Bayer Aktiengesellschaft
    Inventor: Herbert Eichenauer
  • Patent number: 6642318
    Abstract: A free radical polymerization process suitable for synthesizing polymers is disclosed. The process utilizes novel sulfur based chain transfer agents and is widely compatible over a range of monomers and reaction conditions. Novel polymers having low polydispersity and predictably specific polymer architecture and molecular weight are produced by the process. The polymers produced by the process are suitable for use as binders in automotive OEM and refinish coatings.
    Type: Grant
    Filed: June 16, 2000
    Date of Patent: November 4, 2003
    Assignees: E. I. du Pont de Nemours and Company, Commonwealth Scientific and Industrial Research Organization
    Inventors: John Chiefari, Roshan Tyrrel Mayadunne, Graeme Moad, Ezio Rizzardo, San Hoa Thang
  • Patent number: 6531523
    Abstract: A beaded polymeric adsorbent has a core part; a shell part arranged around the core part, with one of the parts having a lipophilic property and another of the parts having a hydrophilic property, and is produced by preparing an organic phase composed of water insoluble monounsaturated and poly unsaturated comonomers; preparing an aqueous phase composed of a mixture of water soluble monounsaturated and polyunsaturated comonomers; forming a dispersion of the organic phase and the aqueous phase in a single vessel; and creating conditions for first polymerizing of one of the phases which forms the core part and thereafter polymerizing the other of the phases which forms the shell part.
    Type: Grant
    Filed: October 10, 2000
    Date of Patent: March 11, 2003
    Assignee: Renal Tech International, LLC
    Inventors: Vadim Davankov, Maria Tsyurupa, Ludmila Pavlova
  • Patent number: 6482897
    Abstract: A process for producing impact-resistant moulding compositions, which is characterised in that a monomer mixture comprising 90 to 20 parts by weight of an aromatic monoalkenyl compound, 10 to 50 parts by weight of an ethylenically unsaturated nitrile, 0 to 30 parts by weight of other copolymerisable compounds is polymerised by a radical mechanism in the presence of 15 to 50 parts by weight, per 100 parts by weight of monomers, of a soluble, gel-free butadiene polymer, and in the presence of 50 to 200 parts by weight, per 100 parts by weight of monomers, of a solvent, wherein the solvent is selected from the group comprising an aliphatic (C1-C8) or cycloaliphatic alcohol, ketone, ether, ester, nitrile (A) or mixtures thereof or a mixture of (A) with an aliphatic (C4-C10), cycloaliphatic or aromatic hydrocarbon (B) in an A:B weight ratio of 100:0 to 30:70, and the polymerisation is conducted as far as a polymer content of the total mixture of 30 to 70% by weight, with thorough mixing and optionally with
    Type: Grant
    Filed: August 6, 1997
    Date of Patent: November 19, 2002
    Assignee: Bayer Aktiengesellschaft
    Inventors: Richard Weider, Gisbert Michels, Frank Wingler
  • Publication number: 20020086948
    Abstract: This invention relates to a graft polyolefin which is obtained by a method comprising the steps of: (a) dissolving or dispersing, in an organic solvent, an acid anhydride-modified amorphous polyolefin which comprises propylene and butene as polymerizable components, thereby preparing its solution or dispersion; (b) adding a hydroxyl group-containing radical polymerizable monomer to the solution or dispersion, and allowing the acid anhydride-modified polyolefin to react with the hydroxyl group-containing radical polymerizable monomer; and (c) effecting graft polymerization by adding at least one radical polymerizable monomer and a radical initiator. This invention also relates to a resin coating composition which contains this graft polyolefin as a solid content.
    Type: Application
    Filed: September 6, 2001
    Publication date: July 4, 2002
    Inventors: Takafumi Masuda, Shingo Tokimoto, Shoji Maekawa
  • Patent number: 6414089
    Abstract: A method of manufacturing a polymer film having second order non-linear optical properties which has excellent stability of orientated molecules and does not become disorientated, and a polymer film and a non-linear optical element are provided. A polymer solution is placed between two substrates, which are disposed substantially perpendicular with respect to a rotating stand and substantially symmetrical with respect to a rotation axis of the rotating stand, and the rotating stand is rotated. A polymer film having second order non-linear optical properties is formed by the centrifugal force generated at the polymer solution.
    Type: Grant
    Filed: August 29, 2000
    Date of Patent: July 2, 2002
    Assignees: Riken, Japan Science and Technology Corporation
    Inventors: Hiromi Kimura-Suda, Hiroyuki Sasabe, Tatsuo Wada
  • Patent number: 6395850
    Abstract: Control agents that have a nitrogen—nitrogen bond in a cyclic ring covalently bonded to a thiocarbonyl moiety are provided for living-type free radical polymerization without a bimodal molecular weight distribution at high monomer conversions. These control agents provide superior properties for the production of block polymers having narrow molecular weight distributions.
    Type: Grant
    Filed: May 22, 2001
    Date of Patent: May 28, 2002
    Assignee: Symyx Technologies, Inc.
    Inventors: Dominique Charmot, Han Ting Chang
  • Patent number: 6369162
    Abstract: A process for preparing a radial polymer comprising at least 3 polymeric arms and a central core comprising a polymerized di- or polyfunctional monomer, said process comprising the steps, (a) polymerizing at an elevated temperature, a charge comprising at least one free radical-polymerizable monomer to prepare a stabilized active polymer block (A) using a free radical polymerization process, wherein a stable free radical agent is employed during the polymerization, thereby preserving the stabilized active polymerization site at the terminus of the polymer; optionally (b) adding at least one additional free radical-polymerizable monomer, at least one of which is different from the monomers making up the first charge of monomers, to the stabilized active polymer block (A); and further reacting the mixture using a free radical process to effect copolymerization of said monomers, thereby preparing an A-B block copolymer having a stabilized active polymerization site at the terminus of the polymer; then (c) ad
    Type: Grant
    Filed: June 21, 2000
    Date of Patent: April 9, 2002
    Assignee: The Lubrizol Corporation
    Inventors: Daniel C. Visger, Richard M. Lange
  • Patent number: 6355718
    Abstract: A process for preparing microgel(s) that uses a wide range of activatable prepolymers; in the process, a polymer composition of crosslinked component A and soluble components B and C is formed from mono-olefinic and multi-olefinic monomers in the presence of catalyst and initiator; the process comprises: I) introducing mono-olefinic monomer, catalyst, and initiator into a reactor in the absence of multi-olefinic monomer and producing an activatable prepolymer, component B; II) contacting the product of I) with multi-olefinic monomer to produce components A and C, optionally in the presence of additional initiator; also optionally in the presence of additional mono-olefinic monomer and initiator; the ratio of components A/(B+C) can be controlled by varying the mole ratio of Component B/ multi-olefinic monomer from 0.05/1 up to 5/1, by decreasing the mole ratio to increase the ratio of A/(B+C), and increasing the mole ratio to decrease the ratio of A/(B+C).
    Type: Grant
    Filed: July 9, 1999
    Date of Patent: March 12, 2002
    Assignees: E. I. du Pont de Nemours and Company, Commonwealth Scientific and Industrial Research Organization, University of Melbourne, Australia
    Inventors: Charles T. Berge, Michael Fryd, Jeffrey W. Johnson, Graeme Moad, Ezio Rizzardo, Christopher Scopazzi, San Hoa Thang
  • Patent number: 6294614
    Abstract: Modified polymers containing a poly(2-hydroxyethyl(meth)acrylate) chain as the hydrophilic polymer segment in which a hydrophobic polymer chain or a lipid residue of a sterol is bound to either end of the poly(2-hydroxyethyl(meth)acrylate) chain through a covalent bond or in which the poly(2-hydroxyethyl(meth)acrylate) chain is grafted onto the backbone chain at either end thereof. These modified polymers are excellent in compatibility with liquid or a living body, thus being advantageously usable particularly in medical fields.
    Type: Grant
    Filed: January 27, 1999
    Date of Patent: September 25, 2001
    Assignee: K. K. Vayu
    Inventors: Kazunori Kataoka, Masao Kato, Yukio Nagasaki, Hotaka Ito, Teiji Tsuruta, Yasuhisa Sakurai, Teruo Okano, Ken Suzuki
  • Patent number: 6291592
    Abstract: A low compression, resilient golf ball having a center and a cover, made from a polybutadiene reaction product having polybutadiene, a cis-to-trans catalyst including an aromatic component, and a free radical source. The reaction product typically has a first dynamic stiffness measured at −50° C. that is less than about 130 percent of a second dynamic stiffness measured at 0° C. A multi-layer golf ball having a center, at least one intermediate layer disposed concentrically about the center, and a cover. At least a portion of at least one of the center, intermediate layer, or both, are made from a reaction product including polybutadiene having a cis-to-trans catalyst that includes at least one aromatic component and a free radical source.
    Type: Grant
    Filed: December 10, 1999
    Date of Patent: September 18, 2001
    Assignee: Acushnet Company
    Inventors: David A. Bulpett, Laurent Bissonnette, Jeffrey L. Dalton, Derek Ladd, Steven M. Gosetti, Murali Rajagopalan, Mark N. Wrigley
  • Patent number: 6025443
    Abstract: Bead polymers having an average particle size of 1 to 30 .mu.m and a narrow particle size distribution are obtained by the seed/feed process if a crosslinked polymer having a soluble fraction of less than 25 wt. % and an average particle size of 0.5 to 10 .mu.m is used as the seed.
    Type: Grant
    Filed: August 13, 1998
    Date of Patent: February 15, 2000
    Assignee: Agfa Gevaert AG
    Inventors: Wolfgang Podszun, Joachim Kruger, Olaf Halle, Frank Louwet
  • Patent number: 5919866
    Abstract: The toner particles of this invention comprise pigment and a resin. The resin comprises a novel polymer formed from ethylenically unsaturated monomers, macromeric moieties that render the resin dispersible in hydrocarbon solvents, and a surface-release promoting moiety. When used for toner particles the polymer further comprises charge directing chelating moieties. The toner particles also include a charge director, preferably a metal cation. The toner particles, when dispersed in a carrier liquid, are useful as liquid toners for electrographic or electrophotographic processes.
    Type: Grant
    Filed: February 9, 1998
    Date of Patent: July 6, 1999
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Prabhakara S. Rao, Valdis Mikelsons
  • Patent number: 5912304
    Abstract: A crosslinkable composition of a polymeric thermoplastic and/or elastomeric material which is susceptible to scorching when processed at elevated temperatures, prior to crosslinking, in the presence of a free radical initiator, is protected against such scorching by the incorporation therein of a mixture of at least one hydroquinone compound and a sulfur accelerator. This mixture may also contain at least one monomeric allylic, methacrylic, acrylic or diene type coagent. The mixture exhibits a synergistic effect resulting in improved scorch protection for peroxide cured systems when compared with the protection afforded by the components singly.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: June 15, 1999
    Assignee: Elf Atochem North America, Inc.
    Inventors: Michael Fred Novits, Chester Joseph Kmiec, Edward Phillip Hibbard
  • Patent number: 5902858
    Abstract: A modified polypropylene resin obtained by melt-kneading a polypropylene resin, an isoprene monomer and a radical polymerization initiator, which has a high melt viscosity and a high melt tensile strengh and is hard to cause draw-down, and which provides, by foaming thereof, foamed articles having low density, high closed cell content, beautiful appearance and excellent heat resistance.
    Type: Grant
    Filed: December 12, 1997
    Date of Patent: May 11, 1999
    Assignee: Kaneka Corporation
    Inventors: Tetsuo Okura, Osamu Miyama, Haruo Tomita
  • Patent number: 5902838
    Abstract: Cationically curable adhesives and sealants with increased viscosities and improved rheological control and good storage stability are prepared using a cationically curable monomer and a thickening polymer which is the alkylation reaction product of poly(4-hydroxystyrene) or poly(2-hydroxystyrene) with a compound RX where R is allyl, methallyl, crotyl or prenyl and X is Cl, Br or I. The cationically curable monomer suitably includes at least one alkenyloxystyrene monomer. Such thickened adhesives are useful as edge sealants for flat panel display devices. A-stage curing of the adhesive with UV irradiation allows for near ambient temperature fixturing of the device assemblies and B-stage thermal curing of the adhesive can be conducted at much lower temperatures than are needed for glass frit sealants. The B-stage cured products have thermal resistance, outgassing and substrate adhesion properties adequate for flat panel display devices.
    Type: Grant
    Filed: October 1, 1996
    Date of Patent: May 11, 1999
    Assignee: Loctite Corporation
    Inventors: John G. Woods, Maria L. Masterson, Matthew P. Burdzy, Bernard M. Malofsky
  • Patent number: 5854365
    Abstract: The present invention relates a toner for developing electrostatic images, comprising: a resin composition, which contains a binder resin and low molecular weight wax, and a coloring agent, wherein the binder resin does not substantially contain insoluble tetrahydrofuran (THF) component, its chromatograph measured with soluble tetrahydrofuran (THF) component has a main peak in a region of a molecular weight of 2,000 to 30,000 and a subpeak or a shoulder in a high molecular weight region of a molecular weight of 100,000 or more, a ratio of weight average molecular weight (Mw)/number average molecular weight (Mn) thereof is 30 or more, the high molecular weight region has a crosslinking monomer unit as a component monomer unit and the binder resin contains high molecular weight polymer having a Mw of 1,200,000 or more polymerized by using both polyfunctional initiator and a mono-functional initiator. Moreover, the present invention relates to a method of manufacturing a resin composition for producing a toner.
    Type: Grant
    Filed: December 19, 1995
    Date of Patent: December 29, 1998
    Assignee: Canon Kabushiki Kaisha
    Inventors: Manabu Ohno, Akihiko Nakazawa, Nobuyuki Okubo, Shunji Suzuki, Hiroyuki Suematsu, Masayoshi Kato
  • Patent number: 5837776
    Abstract: Aqueous dispersions of water soluble nonionic and anionically charged vinyl and allyl addition polymers can be obtained by polymerizing in the presence of an anionically charged water soluble polymer stabilizer in a saturated salt solution. Methods for the preparation of these polymers, and their compositions are disclosed.
    Type: Grant
    Filed: January 10, 1997
    Date of Patent: November 17, 1998
    Assignee: Nalco Chemical Company
    Inventors: Radhakrishnan Selvarajan, John R. Hurlock
  • Patent number: 5773510
    Abstract: A process for the preparation of branched thermoplastic resins comprising: heating a mixture of an unsaturated resin, a free radical initiator, and a stable free radical agent; adding to the heated mixture at least on polymerizable monomer; and cooling the mixture, wherein the resulting product is a branched thermoplastic resin with arms or branches comprised of polymerized monomer with substantially uniform length and narrow polydispersity.
    Type: Grant
    Filed: March 30, 1995
    Date of Patent: June 30, 1998
    Assignee: Xerox Corporation
    Inventors: Peter M. Kazmaier, Karen A. Moffat, Marko D. Saban, Richard P. N. Veregin, Michael K. Georges, Gordon K. Hamer, Toyofumi Inoue, Stephan V. Drappel
  • Patent number: 5753763
    Abstract: The toner particles of this invention comprise pigment and a resin. The resin comprises a novel polymer formed from ethylenically unsaturated monomers, macromeric moieties that render the resin dispersible in hydrocarbon solvents, and a surface-release promoting moiety. When used for toner particles the polymer further comprises charge directing chelating moieties. The toner particles also include a charge director, preferably a metal cation. The toner particles, when dispersed in a carrier liquid, are useful as liquid toners for electrographic or electrophotographic processes.
    Type: Grant
    Filed: October 30, 1996
    Date of Patent: May 19, 1998
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Prabhakara S. Rao, Valdis Mikelsons
  • Patent number: 5556922
    Abstract: A method for preparing a dispersion for a pressure sensitive adhesive is provided, wherein the dispersions contain a copolymer (CP) having units of butyl acrylate and (meth)acrylic acid, the method involving the steps of polymerizing an aqueous emulsion (EM) containing butyl acrylate, an anionic emulsifier and a non-ionic emulsifier, in the aqueous phase, under heating and in the presence of at least one water-soluble initiator (IN) of formula (I)M R.sub.1 (I)where M represents a metal cation, andR1 represents an anion of a peroxyacid or azo-group-containing acid,wherein (IN) is present in an amount of 0.5-1.5 wt. % (based on weight of the monomers);emulsifying-in (meth)acrylic acid while maintaining an elevated reaction temperature; andadding a second initiator (RI) to complete the polymerization.
    Type: Grant
    Filed: August 25, 1994
    Date of Patent: September 17, 1996
    Assignee: Roehm GmbH Chemische Fabrik
    Inventors: Gunther Mueller, Herbert Fink, Joachim Heyne
  • Patent number: 5466747
    Abstract: Graft copolymers comprising a poly-alpha-olefin base polymer selected from the group consisting of polyethylene, polypropylene, polystyrene, and compatible mixtures thereof, having grafted thereto an olefinic monomer. The grafted monomer is present in an amount effective to increase the amount of protein that will bind to the graft copolymer as compared with the base polymer. Also disclosed are polymer/protein compositions comprising a graft copolymer having a protein immobilized on the surface thereof, processes for the preparation of the above-described graft copolymers and compositions, methods of immobilizing proteins, and methods of immunoassay based on such immobilization.
    Type: Grant
    Filed: September 26, 1994
    Date of Patent: November 14, 1995
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Richard J. Rolando, Patrick L. Coleman, Steven L. Kangas, Thomas A. Kotnour