Azobisisobutyronitrile (aibn) Patents (Class 526/219.6)
  • Patent number: 10007029
    Abstract: [1] A ?-phellandrene polymer which is a polymerization product of ?-phellandrene. [2] The ?-phellandrene polymer comprising ?-phellandrene units represented by chemical formulae (I-1), (I-2), (II-1) and (II-2), a total amount of the ?-phellandrene units being 50% by mass or more. [3] The ?-phellandrene polymer, which has a number average molecular weight Mn of 40,000 or more. [4] The ?-phellandrene polymer, wherein at least a part of olefinic carbon-carbon double bonds thereof are hydrogenated. [5] The ?-phellandrene polymer, which has a glass transition temperature of 80° C. or more.
    Type: Grant
    Filed: October 21, 2014
    Date of Patent: June 26, 2018
    Assignees: NATIONAL UNIVERSITY CORPORATION NAGOYA UNIVERSITY, SEKISUI CHEMICAL CO., LTD.
    Inventors: Masami Kamigaito, Kotaro Satoh, Shinya Suzuki, Yasuyuki Kori, Yuji Eguchi, Koichiro Iwasa, Hitoshi Shirato
  • Patent number: 9884935
    Abstract: Methods for of synthesizing a polymer functionalized nanoparticle are provided. The method can comprise: attaching an anchoring compound to a nanoparticle; attaching a RAFT agent to the anchoring compound; and polymerizing a plurality of butadiene-derived monomers on the anchoring compound to form a polymeric chain covalently bonded to the nanoparticle via the anchoring compound. Polymer functionalized nanoparticles are also provided that include a nanoparticle defining a surface; a butadiene-derived polymeric chain covalently bonded to the surface of the nanoparticle. Nanocomposites are also provided that include a plurality of such polymer functionalized nanoparticles dispersed within a polymeric matrix.
    Type: Grant
    Filed: January 21, 2016
    Date of Patent: February 6, 2018
    Assignee: University of South Carolina
    Inventors: Brian Benicewicz, Lei Wang, Mohammad Mohammadkhani
  • Patent number: 9777081
    Abstract: This invention relates to poly(acrylonitrile) homo- or co-polymer having a number average molecular weight (Mn) of at least 200,000 g/mol and a dispersity () of less than 1.3.
    Type: Grant
    Filed: July 14, 2016
    Date of Patent: October 3, 2017
    Assignee: Commonwealth Scientific and Industrial Research Organisation
    Inventor: Jackie Yun Cai
  • Patent number: 9622958
    Abstract: The present invention relates to a cosmetic composition comprising a latex film forming polymer, a hyperbranched functional polymer, an organic solvent and water. The compositions of the present invention may optionally contain at least one colorant. The invention also relates to a method for making up and/or enhancing the appearance of a keratinous substrate, in particular lashes, by applying these compositions to the keratinous substrate.
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: April 18, 2017
    Assignee: L'OREAL
    Inventors: Hy Si Bui, Christopher Pang
  • Patent number: 9309377
    Abstract: The invention provides pentabromobenzyl moiety containing hydroxy-functional compounds which are useful as flame-retardants in flexible and rigid polyurethane foams and also in rigid polyisocyanurate foams. Processes for preparing the compounds, polyurethane and polyisocyanurate foams containing the compounds are also provided by the invention.
    Type: Grant
    Filed: April 8, 2014
    Date of Patent: April 12, 2016
    Assignee: BROMINE COMPOUNDS LTD.
    Inventors: Mark Gelmont, Michael Yuzefovich, Dorit Peled, Orly Cohen, Ron Frim
  • Patent number: 9249250
    Abstract: Methods for of synthesizing a polymer functionalized nanoparticle are provided. The method can comprise: attaching an anchoring compound to a nanoparticle; attaching a RAFT agent to the anchoring compound; and polymerizing a plurality of butadiene-derived monomers on the anchoring compound to form a polymeric chain covalently bonded to the nanoparticle via the anchoring compound. Polymer functionalized nanoparticles are also provided that include a nanoparticle defining a surface; a butadiene-derived polymeric chain covalently bonded to the surface of the nanoparticle. Nanocomposites are also provided that include a plurality of such polymer functionalized nanoparticles dispersed within a polymeric matrix.
    Type: Grant
    Filed: January 15, 2015
    Date of Patent: February 2, 2016
    Assignee: University of South Carolina
    Inventors: Brian Benicewicz, Lei Wang, Mohammad Mohammadkhani
  • Patent number: 9175015
    Abstract: The disclosure generally relates to formation of polymers grafted to or polymerized from the surface of gold nanoparticles. The polymers are functionalized to include therapeutic agents and/or targeting agents at their surface, thereby allowing both therapeutic and targeting compounds to be directed to specific cells in a patient.
    Type: Grant
    Filed: August 22, 2008
    Date of Patent: November 3, 2015
    Assignee: COLORADO SCHOOL OF MINES
    Inventors: Stephen G. Boyes, Misty D. Rowe, Jay Hotchkiss
  • Publication number: 20150105487
    Abstract: This invention relates to no-salt and mixed salt suspension polymerization processes for water-soluble monomers and resins and relates to catalysts produced from the same.
    Type: Application
    Filed: June 7, 2013
    Publication date: April 16, 2015
    Applicant: ROHM AND HAAS COMPANY
    Inventors: Takashi Masudo, Robert J. Olsen, Garth R. Parker, Jr., Jose A. Trejo
  • Patent number: 8993696
    Abstract: A method for producing polymer particles includes a suspension step of suspending a first liquid mixture containing an oily olefin monomer, a radical polymerization initiator, and an iodine molecule in a second liquid mixture containing water and an iodide ion to prepare a suspension containing an oil droplet having the first liquid mixture; a synthesis step of synthesizing an iodine compound by allowing a radical generated by cleavage of the radical polymerization initiator to react with the iodine molecule in the oil droplet; and a polymerization step of polymerizing the oily olefin monomer in the oil droplet.
    Type: Grant
    Filed: April 23, 2012
    Date of Patent: March 31, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takayuki Hiratani, Shinnosuke Koji, Kazumichi Nakahama
  • Patent number: 8975302
    Abstract: The disclosure relates to methods of making polymer particles, said methods including the steps of: making an aqueous gel reaction mixture; forming an emulsion having dispersed aqueous phase micelles of gel reaction mixture in a continuous phase; adding an initiator oil comprising at least one polymerization initiator to the continuous phase; and performing a polymerization reaction in the micelles. Further, the initiator oil is present in a volume % relative to a volume of the aqueous gel reaction mixture of between about 1 vol % to about 20 vol %. The disclosure also relates to methods of making nucleic acid polymer particles having the same method steps and wherein the aqueous gel reaction mixture includes a nucleic acid fragment, such as a primer.
    Type: Grant
    Filed: July 6, 2012
    Date of Patent: March 10, 2015
    Assignee: Life Technologies Corporation
    Inventors: David Light, Barnett Rosenblum
  • Publication number: 20140309391
    Abstract: The acrylic copolymer according to the present invention has a specific repeating unit and includes, in a chain, a methacrylate unit, a glutaric anhydride unit, or a mixture thereof in the amount of 0 to 1 ppm.
    Type: Application
    Filed: November 8, 2012
    Publication date: October 16, 2014
    Applicant: Cheil Industries Inc.
    Inventors: In Sik Jeon, Beom Jun Joo, Im Hyuck Bae
  • Publication number: 20140296461
    Abstract: An aromatic vinyl copolymer can exhibit excellent heat resistance and/or transparency and is a copolymer of a monomer mixture, which includes: an exo-methylene butyrolactone compound represented by Formula 1; an aromatic vinyl compound; and a vinyl cyanide compound. wherein R1 and R2 are each independently hydrogen, C1 to C12 alkyl, or C6 to C12 aryl.
    Type: Application
    Filed: March 24, 2014
    Publication date: October 2, 2014
    Applicant: Cheil Industries Inc.
    Inventors: Beom Jun JOO, Sun Dae KIM
  • Publication number: 20140274929
    Abstract: The present invention is directed to a crosslinked or non-crosslinked polymer particle, wherein the crosslinked polymer particle comprises a copolymer of poly(alkylene glycol-graft-acrylate) that is crosslinked by at least one hydrolysable monomer or crosslinking agent. The present invention is also directed to a polymer particle comprising a crosslinked polymer particle that is a product of starting materials comprising (a) a hydrophilic monomer, (b) a hydrophobic monomer, and (c) a hydrolysable crosslinking agent (the crosslinking agent may be absent in the case of non-crosslinked particles). The present invention is still further directed to a polymer particle comprising a crosslinked copolymer, where the crosslinked copolymer includes structures represented by Formulas (I), (II), and (III), as defined in the specification. Other embodiments of the present invention also include methods of manufacturing polymer particles.
    Type: Application
    Filed: May 30, 2014
    Publication date: September 18, 2014
    Applicant: HOWARD UNIVERSITY
    Inventors: Emmanuel Oyekanmi Akala, Oluyomi Modupe Okunola
  • Patent number: 8822610
    Abstract: A procedure for improved temperature control in controlled radical polymerization processes is disclosed. The procedure is directed at controlling the concentration of the persistent radical in ATRP and NMP polymerizations procedures and the concentration of radicals in a RAFT polymerization process by feeding a reducing agent or radical precursor continuously or intermittently to the reaction medium through one of more ports.
    Type: Grant
    Filed: December 8, 2010
    Date of Patent: September 2, 2014
    Assignee: ATRP Solutions, Inc.
    Inventors: Wojciech Jakubowski, James Spanswick
  • Patent number: 8821910
    Abstract: The present application relates to oligomeric antimicrobial compounds and compositions comprising the same. The oligomers are formed by polymerizing aminoalkyl(meth)acrylate or aminoalkyl(meth)acrylamide monomer(s). In addition to imparting materials with broad spectrum antimicrobial activity, the oligomers can impart antimicrobial activity to substrates such as hair and skin.
    Type: Grant
    Filed: June 20, 2012
    Date of Patent: September 2, 2014
    Assignee: BASF SE
    Inventors: Zhiqiang Song, Ted Deisenroth
  • Publication number: 20140242237
    Abstract: Disclosed herein are compositions of, and methods of use for, molecularly imprinted polymers useful for extracting and/or detecting target molecule compounds of wine.
    Type: Application
    Filed: October 15, 2012
    Publication date: August 28, 2014
    Applicants: CONSTELLATION BRAND U.S. OPERATIONS, INC., THE TRUSTEES OF DARTMOUTH COLLEGE
    Inventors: Joseph J. Belbruno, Mark Kelm
  • Patent number: 8815971
    Abstract: A procedure for improved temperature control in controlled radical polymerization processes is disclosed. The procedure is directed at controlling the concentration of the persistent radical in ATRP and NMP polymerizations procedures and the concentration of radicals in a RAFT polymerization process by feeding a reducing agent or radical precursor continuously or intermittently to the reaction medium through one of more ports.
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: August 26, 2014
    Assignee: ATRP Solutions, Inc.
    Inventors: Wojciech Jakubowski, James Spanswick
  • Publication number: 20140161993
    Abstract: Disclosed therein are an acrylate compound having a photoreactive group, a photoreactive acrylate polymer, and a photo-alignment layer comprising the same that not only have excellences in alignment properties and alignment rate and readiness for change in the alignment direction based on the polarization direction of radiation but also exhibit a high solubility to organic solvents and good workability.
    Type: Application
    Filed: November 29, 2013
    Publication date: June 12, 2014
    Applicant: LG CHEM, LTD.
    Inventors: Dong-Woo Yoo, Sung-Ho Chun, Dai-Seung Choi
  • Publication number: 20140011760
    Abstract: Methods for forming, modifying, and drug loading of a copolymer are provided, along with the resulting products. The method can include polymerizing 2-(pyridin-2-yldisulfanyl)ethyl acrylate with poly(ethylene glycol)methacrylate via free radical polymerization to form the copolymer. The molar ratio of 2-(pyridin-2-yldisulfanyl)ethyl acrylate to poly(ethylene glycol)methacrylate is about 100:1 to about 1:100. After polymerizing, the copolymer can be reacted with a thiol monomer that contains a carbon-bonded sulfhydryl to modify end groups on a first portion of the 2-(pyridin-2-yldisulfanyl)ethyl acrylate repeating units. Thereafter, the copolymer can be crosslinked, and a drug can then be loaded into the crosslinked copolymer.
    Type: Application
    Filed: June 28, 2013
    Publication date: January 9, 2014
    Inventors: Peisheng Xu, Remant Bahadur K.C.
  • 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: 20130267671
    Abstract: Provided is a low-cost, highly active, environmentally friendly living radical polymerization method which does not require a radical initiator. Even if a catalyst is not used, a living radical polymerization method can be conducted by controlling the amount of the oxygen in the gaseous phase in the reaction vessel within a suitable range. A monomer having a radical-reactive unsaturated bond can be subjected to a radical polymerization reaction to obtain a polymer having narrow molecular weight distribution. The cost of the living radical polymerization can be remarkably reduced. The present invention eliminates the disadvantages of the conventional catalysts such as toxicity, low solubility, coloring/odor and the like, and is significantly more environmentally friendly and economically efficient than conventional living radical polymerization methods.
    Type: Application
    Filed: September 14, 2011
    Publication date: October 10, 2013
    Applicant: KYOTO UNIVERSITY
    Inventors: Atsushi Goto, Yoshinobu Tsujii, Kenichi Nakamura, Michihiro Kawai
  • Patent number: 8455572
    Abstract: This invention relates to the fields of polymer chemistry, materials science and ophthalmology. More particularly it relates to optical components and method(s) of preparing same from hydrophobic acrylic (HA) monomer(s) that exhibit reduced or eliminated glistenings when implanted in a patient's eye. The method of this invention uses a mixture of one or more low temperature initiators (LTI) combined with one or more high temperature initiators (HTI), to polymerize one or more HA monomers to produce an optical HA polymer which, when used to manufacture an optical component and implanted as with an intraocular lens (IOL), exhibit reduced glistenings to the patient.
    Type: Grant
    Filed: January 31, 2011
    Date of Patent: June 4, 2013
    Assignee: Key Medical Technologies, Inc.
    Inventor: Khalid Mentak
  • Publication number: 20130090439
    Abstract: The present invention relates to methods of producing polymerized 2,3,3,3-tetrafluoropropene (poly-1234yf) using one or a combination of the techniques provided herein. In certain embodiments, such techniques include (1) emulsion polymerization; (2) suspension polymerization; (3) solution polymerization; (4) supercritical carbon dioxide polymerization; (5) transition metal catalyzed polymerization; (6) radiation or thermal polymerization; and combinations thereof. A wide array of initiators, catalysts, and solvents may be used in such polymerization processes and may include, but are not limited to, (1) radical initiators; (2) ionic initiators; and (3) single-site and multiple-site catalysts.
    Type: Application
    Filed: October 4, 2012
    Publication date: April 11, 2013
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventor: HONEYWELL INTERNATIONAL INC.
  • Publication number: 20130066030
    Abstract: Disclosed is a method for making absorbent for metal. In the method, at first, solution of first monomer and solution of second monomer are provided. Then, the solution of the second monomer is introduced into the solution of the first monomer. Finally, a microwave reaction is executed to provide micro-alls of absorbent for metal.
    Type: Application
    Filed: September 14, 2011
    Publication date: March 14, 2013
    Applicant: Chung-Shan Institute of Science and Technology, Armaments, Bureau, Ministry of National Defense
    Inventors: Yen-Chung Chen, Chih-kai Chang, Hsiou-Jeng Shy, Ching-Yu Tso, Jen-Bin Won, Ming-Der Ger
  • Patent number: 8394305
    Abstract: Disclosed herein is a thermoplastic cellulosic composition for preparing a cellulose-based masterbatch and/or a cellulose-based fiber with a networked structure. In one example, the thermoplastic cellulosic composition includes an esterified cellulose present in a range of about 80 wt % to about 95 wt %, polyethylene glycol present in a range of about 4.5 wt % to about 12 wt %, a tri-functional cross-linking agent present in a range of about 0.01 wt % to about 3 wt %, an initiator present in a range of about 0.01 wt % to about 0.15 wt %, and a dispersing agent present in a range of about 0.01 wt % to about 5 wt %.
    Type: Grant
    Filed: October 24, 2012
    Date of Patent: March 12, 2013
    Assignee: Taiwan Textile Research Institute
    Inventors: Su-Chen Chen, Sheng-Jen Lin, Nai-Yun Liang, Chao-Huei Liu, Wei-Peng Lin
  • Patent number: 8357483
    Abstract: The present invention relates to a photosensitive resin composition that includes a polymer prepared by using a macromonomer as an alkali soluble resin. The photosensitive resin composition is used for various types of purposes such as a photoresist for preparing a color filter, an overcoat photoresist, a column spacer, and an insulating material having a light blocking property, and improves physical properties such as residue or not, chemical resistance, and heat resistance of the photoresist.
    Type: Grant
    Filed: April 11, 2008
    Date of Patent: January 22, 2013
    Assignee: LG Chem, Ltd.
    Inventors: Han-Soo Kim, Min-Young Lim, Yoon-Hee Heo, Ji-Heum Yoo, Sung-Hyun Kim, Kwang-Han Park
  • Publication number: 20130012658
    Abstract: The disclosure relates to methods of making polymer particles, said methods including the steps of: making an aqueous gel reaction mixture; forming an emulsion having dispersed aqueous phase micelles of gel reaction mixture in a continuous phase; adding an initiator oil comprising at least one polymerization initiator to the continuous phase; and performing a polymerization reaction in the micelles. Further, the initiator oil is present in a volume % relative to a volume of the aqueous gel reaction mixture of between about 1 vol % to about 20 vol %. The disclosure also relates to methods of making nucleic acid polymer particles having the same method steps and wherein the aqueous gel reaction mixture includes a nucleic acid fragment, such as a primer.
    Type: Application
    Filed: July 6, 2012
    Publication date: January 10, 2013
    Applicant: LIFE TECHNOLOGIES CORPORATION
    Inventors: David Light, Barnett Rosenblum
  • Publication number: 20120328683
    Abstract: The present application relates to oligomeric antimicrobial compounds and compositions comprising the same. The oligomers are formed by polymerizing aminoalkyl (meth)acrylate or aminoalkyl (meth)acrylamide monomer(s). In addition to imparting materials with broad spectrum antimicrobial activity, the oligomers can impart antimicrobial activity to substrates such as hair and skin.
    Type: Application
    Filed: June 20, 2012
    Publication date: December 27, 2012
    Inventors: Zhiqiang Song, Ted Deisenroth
  • Patent number: 8329837
    Abstract: Disclosed herein is a thermoplastic cellulosic composition for preparing a cellulose-based masterbatch and/or a cellulose-based fiber with a networked structure. In one example, the thermoplastic cellulosic composition includes an esterified cellulose present in a range of about 80 wt % to about 95 wt %, polyethylene glycol present in a range of about 4.5 wt % to about 12 wt %, a tri-functional cross-linking agent present in a range of about 0.01 wt % to about 3 wt %, an initiator present in a range of about 0.01 wt % to about 0.15 wt %, and a dispersing agent present in a range of about 0.01 wt % to about 5 wt %.
    Type: Grant
    Filed: June 14, 2010
    Date of Patent: December 11, 2012
    Assignee: Taiwan Textile Research Institute
    Inventors: Su-Chen Chen, Sheng-Jen Lin, Nai-Yun Liang, Chao-Huei Liu, Wei-Peng Lin
  • Publication number: 20120277390
    Abstract: A method for producing polymer particles includes a suspension step of suspending a first liquid mixture containing an oily olefin monomer, a radical polymerization initiator, and an iodine molecule in a second liquid mixture containing water and an iodide ion to prepare a suspension containing an oil droplet having the first liquid mixture; a synthesis step of synthesizing an iodine compound by allowing a radical generated by cleavage of the radical polymerization initiator to react with the iodine molecule in the oil droplet; and a polymerization step of polymerizing the oily olefin monomer in the oil droplet.
    Type: Application
    Filed: April 23, 2012
    Publication date: November 1, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Takayuki Hiratani, Shinnosuke Koji, Kazumichi Nakahama
  • Patent number: 8252876
    Abstract: The present invention relates to molecularly imprinted polymers, methods for their preparation and use of said molecularly imprinted polymers in separation, chemical sensors, drug screening, catalysis and in regioselective and enantioselective synthesis.
    Type: Grant
    Filed: February 13, 2008
    Date of Patent: August 28, 2012
    Assignee: Biotage AB
    Inventors: Ecevit Yilmaz, Henrik Björk, Johan Billing, Anthony Rees
  • Publication number: 20120214950
    Abstract: Methods for forming rosin-derived cationic compounds are provided. The method can include attaching a cationic group to a conjugated diene on a hydrophenathrene-based ring of a resin acid (e.g., levopimaric acid, abietic acid, dehydroabietic acid, or a mixture thereof) to form a rosin-derived cationic compound. Attaching the cationic group to the conjugated diene on the hydrophenathrene-based ring of the resin acid can be achieved via a Diels-Alder reaction of a dienophile with the hydrophenathrene-based ring of the resin acid. Rosin-derived cationic compounds are also provided. The rosin-derived cationic compound can include a cationic group attached to a conjugated diene on a hydrophenathrene-based ring of a resin acid, wherein the rosin-derived cationic compound further comprises a carboxylic acid group.
    Type: Application
    Filed: February 15, 2012
    Publication date: August 23, 2012
    Applicant: UNIVERSITY OF SOUTH CAROLINA
    Inventors: Chuanbing Tang, Jifu Wang, Alan W. Decho, Yung Pin Chen
  • Publication number: 20120142875
    Abstract: Disclosed are a maleimide-a-alkylstyrene-based, heat-resistant bulk tetrapolymer and a preparation process thereof. More specifically, disclosed are a bulk tetrapolymer, comprising 5-60 wt % of an N-substituted maleimide monomer, 10-70 wt % of an a-alkylstyrene monomer, 5-50 wt % of an unsaturated nitrile monomer and 3-50 wt % of an aromatic vinyl monomer, as well as a continuous bulk polymerization process for preparing the same. The disclosed bulk tetrapolymer has a weight-average molecular weight (Mw) of 70,000-300,000 and a glass transition temperature of 150-200 DEG C., shows excellent high-temperature thermal stability and heat resistance and a remarkably low melt viscosity, and thus is excellent not only in processability, but also in productivity, processability, moldability and blendability, when it is blended with other resins. Also, the continuous bulk polymerization process is equipped with a devolatilizer and enables the bulk tetrapolymer to be produced at low cost and high efficiency.
    Type: Application
    Filed: December 7, 2011
    Publication date: June 7, 2012
    Inventors: Dong Cheol Sohn, Sup Joo Lee, Byung Yoon Ahn
  • Patent number: 8178637
    Abstract: The present invention discloses an emulsion polymerization process that comprises: (1) preparing an aqueous polymerization medium which is comprised of (a) at least one monomer, (b) a polymerization control agent, and an emulsifier, wherein the emulsifier is prepared in-situ within the aqueous polymerization medium; and (2) initiating polymerization of said monomer within the aqueous polymerization medium.
    Type: Grant
    Filed: July 7, 2010
    Date of Patent: May 15, 2012
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Dane Kenton Parker, Frank James Feher, Viswanath Mahadevan
  • Patent number: 8084558
    Abstract: A new, facile, general one-phase method of generating thiol-functionalized transition metal nanoparticles and surfaces modified by (co)polymers synthesized by the RAFT method is described. The method includes the steps of forming a (co)polymer in aqueous solution using the RAFT methodology, forming a colloidal transition metal precursor solution from an appropriate transition metal; adding the metal precursor solution or surface to the (co)polymer solution, adding a reducing agent into the solution to reduce the metal colloid in situ to produce the stabilized nanoparticles or surface, and isolating the stabilized nanoparticles or surface in a manner such that aggregation is minimized. The functionalized surfaces generated using these methods can further undergo planar surface modifications, such as functionalization with a variety of different chemical groups, expanding their utility and application.
    Type: Grant
    Filed: July 21, 2008
    Date of Patent: December 27, 2011
    Assignee: University of Southern Mississippi
    Inventors: Charles L. McCormick, III, Andrew B. Lowe, Brent S. Sumerlin
  • Publication number: 20110306743
    Abstract: Provided is a crosslinked hexaaryl bisimidazole compound which can achieve photochromic characteristics, i.e., visually showing decoloring simultaneously with the stop of light irradiation and enables precise control of color tone, density and so on in coloring. Also provided are a method for producing the aforesaid compound whereby the degrees of freedom in molecular design and synthesis can be increased, and a precursor compound to be used in the production method.
    Type: Application
    Filed: November 24, 2009
    Publication date: December 15, 2011
    Applicant: KANTO KAGAKU KABUSHIKI KAISHA
    Inventors: Jiro Abe, Yuta Kishimoto, Daisuke Kato, Atsushi Kimoto
  • Publication number: 20110275776
    Abstract: The invention relates to a process for removing fouling on a surface, wherein the surface is contacted with an aqueous solution of a guanidine of formula R1R2N—C(?NH)—NR3R4??(I) wherein R1, R2, R3 and R4 may be the same or different and each of R1, R2, R3 and R4 is hydrogen or hydrocarbyl.
    Type: Application
    Filed: December 21, 2009
    Publication date: November 10, 2011
    Inventors: Marco Antonius Denneman, Karzijn Willem
  • Patent number: 7985819
    Abstract: The present invention discloses styrene-maleic anhydride copolymers preparations using solventless techniques. The solventless method resulted in reduced amounts of residues, such as unreacted styrene and/or maleic anhydride monomers, which makes the copolymers particularly suitable for bioapplications.
    Type: Grant
    Filed: March 26, 2009
    Date of Patent: July 26, 2011
    Assignee: Exotech Bio Solutions Ltd.
    Inventors: Mircea Dan Bucevschi, Monica Colt
  • Publication number: 20110166248
    Abstract: The present invention provides a reactive hydrophilic copolymer consisting essentially of units formed by ethylenically unsaturated hydrophilic monomers and units of formula (I) or (II) formed by ethylenically unsaturated monomers having alkoxy silane functional groups in a random order: wherein the copolymer has a molecular weight of at least 50,000, and wherein R1, R2 and R3 can be the same or different and are independently selected from H or C1-3 alkyl; R is C1-3 alkyl; X, Y and Z can be the same or different and are independently selected from R? or OR?, provided that at least one of X, Y and Z is OR?; R? is H or C1-3 alkyl; and the equivalent ratio of the units formed by ethylenically unsaturated hydrophilic monomers to the units of formula (I) or (II) is within the range of 5/1 to 200/1. The present invention also provides silicone hydrogel compositions comprising the reactive hydrophilic copolymer of the present invention and ocular articles made therefrom.
    Type: Application
    Filed: December 30, 2010
    Publication date: July 7, 2011
    Inventors: Yu-Fang HSU, Ching-Ping HUANG, Chia-Chang LIU
  • 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
  • Patent number: 7935774
    Abstract: An object of the present invention is to provide a method for producing a particulate water-absorbent polymer particle having remarkably improved long-term color stability, without an adverse effect (such as a delay in polymerization) on synthesis of the particulate water-absorbent polymer. The method includes the steps of polymerizing a monomer aqueous solution (B) containing (i) at least one type of monomer (A) that is capable of forming a particulate water-absorbent polymer by polymerization, (ii) at least one type of crosslinking agent, (iii) at least one type of polymerization initiator and (iv) an organophosphorus compound in an amount of not less than 1 but not more than 100 ppm by mass with respect to the monomer (A) so as to form a hydrogel polymer, and drying the hydrogel polymer.
    Type: Grant
    Filed: July 13, 2009
    Date of Patent: May 3, 2011
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Hiroyuki Ikeuchi, Makoto Nagasawa
  • Patent number: 7893173
    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; and 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: Grant
    Filed: August 28, 2006
    Date of Patent: February 22, 2011
    Assignee: Carnegie Mellon University
    Inventors: Krzysztof Matyjaszewski, Wojciech Jakubowski, James Spanswick
  • Patent number: 7863386
    Abstract: The instant invention is an improved low-density ethylenic polymer composition and method of making the same. The polymer composition according to instant invention includes a major component, and a minor component. The major component is an LDPE resin having a melt index (I2) in the range of about 0.01 dg/min to about 100 dg/min, a MW(abs)/MW(GPC) ratio of about 2.6 or less, and a melt strength of less than (14.0 e(?1.05*log 10(MI)))cN Jj16 mmor component is an LDPE resin having a melt index (I2) of less than about 5 dg/min, a molecular weight distribution of greater than about 7, and a MW(abs)/MW(GPC) ratio of at least 2.7. The polymer composition of the instant invention may further include additional components.
    Type: Grant
    Filed: March 3, 2006
    Date of Patent: January 4, 2011
    Assignee: Dow Global Technologies Inc.
    Inventors: Thomas Oswald, Christopher R. Eddy, Andrea M. Rhodius, Christopher W. Conrad
  • Patent number: 7767775
    Abstract: The present invention discloses an emulsion polymerization process that comprises: (1) preparing an aqueous polymerization medium which is comprised of (a) at least one monomer, (b) a polymerization control agent, and an emulsifier, wherein the emulsifier is prepared in-situ within the aqueous polymerization medium; and (2) initiating polymerization of said monomer within the aqueous polymerization medium.
    Type: Grant
    Filed: June 16, 2006
    Date of Patent: August 3, 2010
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Dane Kenton Parker, Frank James Feher, Viswanath Mahadevan
  • Patent number: 7745553
    Abstract: The invention provides a method for preparing an aqueous dispersion of polymer particles comprising the following steps: (i) preparing a dispersion having a continuous aqueous phase, a dispersed organic phase comprising one or more ethylenically unsaturated monomers, and an amphiphilic RAFT agent as a stabilizer for said organic phase, and (ii) polymerizing said one or more ethylenically unsaturated monomers under the control of said amphiphilic RAFT agent to form said aqueous dispersion of polymer particles, novel amphiphilic RAFT agents for use in this method, novel RAFT agents useful in making these amphiphilic RAFT agents and methods for their manufacture.
    Type: Grant
    Filed: December 20, 2002
    Date of Patent: June 29, 2010
    Assignee: University of Sydney
    Inventors: Christopher Henry Such, Ezio Rizzardo, Algirdas Kazimieras Serelis, Brian Stanley Hawkett, Robert Goulston Gilbert, Christopher James Ferguson, Robert John Hughes, Edna Olejnik, legal representative
  • Publication number: 20100144919
    Abstract: A method is disclosed in which modified and generic dental resins are combined as mixtures with reactive polymeric nanoparticles (RPNPs). Nanoparticles as additives clearly demonstrate that the RPNPs significantly influence the mechanical and shrinkage properties of the matrix and composites.
    Type: Application
    Filed: November 28, 2007
    Publication date: June 10, 2010
    Inventors: Janos Borbely, Melinda Szaloki, Andrea Uveges, Katalin Bukovinszki, Csaba Hegedus
  • Publication number: 20100081089
    Abstract: The present invention relates to a photosensitive resin composition that includes a polymer prepared by using a macromonomer as an alkali soluble resin. The photosensitive resin composition is used for various types of purposes such as a photoresist for preparing a color filter, an overcoat photoresist, a column spacer, and an insulating material having a light blocking property, and improves physical properties such as residue or not, chemical resistance, and heat resistance of the photoresist.
    Type: Application
    Filed: April 11, 2008
    Publication date: April 1, 2010
    Inventors: Han-Soo Kim, Min-Young Lim, Yoon-Hee Heo, Ji-Heum Yoo, Sung-Hyun Kim, Kwang-Han Park
  • Patent number: 7642329
    Abstract: A macromer based novel copolymer comprising an acrylate or methacrylate ester of low molecular weight oligomeric lactide copolymerized with basic monomer is provided. These copolymers show unusual dissolution behavior in that they are soluble over a wide range of pH from 1.8 to 7.4. This unexpected solubility behavior can be exploited to develop pharmaceutical dosage forms.
    Type: Grant
    Filed: September 7, 2006
    Date of Patent: January 5, 2010
    Assignee: Council of Scientific & Industrial Research
    Inventors: Suvarnapathaki Rupali Kedar, Kulkarni Mohan Gopalkrishna
  • Patent number: 7642328
    Abstract: The present invention discloses a novel pH sensitive copolymer synthesized from lactide macromers and basic monomers. This composition comprises an acrylate or methacrylate ester of low molecular weight oligomeric lactide copolymerized with basic monomer. These copolymers show pH sensitive dissolution behavior which can be exploited for pharmaceutical applications.
    Type: Grant
    Filed: September 7, 2006
    Date of Patent: January 5, 2010
    Assignee: Council of Scientific & Industrial Research
    Inventors: Suvarnapathaki Rupali Kedar, Kulkarni Mohan Gopalkrishna
  • Publication number: 20090318649
    Abstract: The present invention discloses styrene-maleic anhydride copolymers preparations using solventless techniques. The solventless method resulted in reduced amounts of residues, such as unreacted styrene and/or maleic anhydride monomers, which makes the copolymers particularly suitable for bioapplications.
    Type: Application
    Filed: March 26, 2009
    Publication date: December 24, 2009
    Inventors: Mircea Dan Bucevschi, Monica Colt