Nitrogen Bonded To Oxygen Atom (including Nitrogen Containing Salts) Patents (Class 526/311)
-
Patent number: 11543697Abstract: Provided are a polarizer having a high degree of alignment and an image display device including the polarizer. The polarizer of the present invention is a polarizer which is formed of a polarizer-forming composition containing a liquid crystal compound and a dichroic material, in which the liquid crystal compound and the dichroic material are horizontally aligned, and in an X-ray diffraction spectrum of the polarizer, at least one of a plurality of peaks observed in a diffraction angle range of 17° or less is a peak A in which an interval of a periodic structure corresponding to the at least one peak does not have an integer multiple relationship with an interval of a periodic structure corresponding to at least one of other peaks.Type: GrantFiled: December 22, 2020Date of Patent: January 3, 2023Assignee: FUJIFILM CorporationInventors: Kengo Saito, Yuzo Fujiki, Wataru Hoshino
-
Patent number: 10174134Abstract: The present invention relates to a method for producing a cationic polyvinyl amine based copolymer. The present invention further relates to a cationic polyvinyl amine based copolymer and use of the copolymer in paper industry as a strength agent, a retention agent and a drainage agent.Type: GrantFiled: September 24, 2015Date of Patent: January 8, 2019Assignee: Kemira OyjInventor: Sacha Legrand
-
Patent number: 9011992Abstract: The present invention provides uniaxially stretched polymer films that have a refractive index profile suitable for use as negative A-plates or biaxial birefringent plates in a liquid crystal display (LCD) device. These wave plates can be used to compensate for the phase retardations existing in various modes of LCDs including TN (twisted nematic), VA (vertically aligned), IPS (in-plane switching), and OCB (optically compensated bend), and therefore improving the viewing quality of the displays.Type: GrantFiled: August 22, 2008Date of Patent: April 21, 2015Assignee: Akron Polymer SystemsInventors: Xiaoliang Joe Zheng, Frank W. Harris, Ted Calvin Germroth, Jiaokai Alexander Jing, Dong Zhang, Thauming Kuo, Brian Michael King
-
Patent number: 8916058Abstract: It has been discovered by in present invention that, compared with a fluorosurfactant having only one betaine group per molecule, a fluorosurfactant having a plurality of betaine groups per molecule is superior in its ability to undergo electrostatic interaction with other components of a fire fighting composition thereby improving the performance of the fire fighting composition. Previously known fluorosurfactants comprise only one betaine group per molecule. In contrast, the present invention provides for a fluorobetaine copolymer containing a plurality of betaine groups.Type: GrantFiled: March 14, 2008Date of Patent: December 23, 2014Assignee: E I du Pont de Nemours and CompanyInventors: Romain Severac, Martial Jean-Jacques Pabon, Isabelle Deguerry, Guillaume Gamblin
-
Publication number: 20140370429Abstract: The instant disclosure describes methacrylate coated carrier resins with hydrophobic substituents for charge control and improved RH sensitivity.Type: ApplicationFiled: June 14, 2013Publication date: December 18, 2014Inventors: Richard PN Veregin, Qingbin Li, Andriy Kovalenko, Sergey Gusarov, Daryl W. Vanbesien, Michael S. Hawkins
-
Publication number: 20140320951Abstract: This invention relates to polymer particles, a process for their preparation, the use of these particles for the preparation of an electrophoretic device, electrophoretic displays comprising such particle, and new polymerisable dyes.Type: ApplicationFiled: November 2, 2012Publication date: October 30, 2014Inventors: Louise Diane Farrand, Claire Topping, Anthony Lawrence
-
Patent number: 8871831Abstract: A polymer formed by controlled radical polymerization includes groups that can be modified after controlled radical polymerization to form a radical. The polymer can be the reaction product of a controlled radical polymerization of radically polymerizable monomers, wherein at least one of the radically polymerizable monomers includes at least one group that can be modified after the controlled radical polymerization to form a radical.Type: GrantFiled: October 28, 2013Date of Patent: October 28, 2014Assignees: University of Pittsburgh—of the Commonwealth System of Higher Education, Carnegie Mellon UniversityInventors: Jinyu Huang, Alan J. Russell, Nicolay V. Tsarevsky, Krzysztof Matyjaszewski
-
Patent number: 8822713Abstract: Coordination complexes of at least one metal element with at least one aromatic monomer are provided. The at least one aromatic monomer may comprise at least one aromatic ring, which ring comprising at least one ethylenic group, at least one hydroxide group —OH, at least one oxime group and salts thereof. The metal element may be in the form of a metal alkoxide.Type: GrantFiled: November 17, 2010Date of Patent: September 2, 2014Assignee: Comissariat a l'Energie Atomique et aux Energies AlternativesInventors: Alexia Balland Longeau, Stéphane Cadra, Jérôme Thibonnet
-
Publication number: 20140221574Abstract: Provided is a liquid crystal alignment layer of which a constituent member is a polymer represented by the general formula (I).Type: ApplicationFiled: June 27, 2012Publication date: August 7, 2014Applicant: DIC CORPORATIONInventors: Martin Schadt, Vladimir Grigorievich Chigrinov, Hoi-Sing Kwok, Sayaka Nose, Masayuki Iwakubo, Masanao Hayashi, Yutaka Nagashima, Isa Nishiyama, Haruyoshi Takatsu
-
Patent number: 8772425Abstract: The present invention provides pressure-sensitive adhesives having a refractive index of at least 1.50. The pressure-sensitive adhesives comprise at least one monomer containing a substituted or an unsubstituted biphenyl group.Type: GrantFiled: January 15, 2013Date of Patent: July 8, 2014Assignee: 3M Innovative Properties CompanyInventors: Michael D. Determan, Albert I. Evaraerts, Cheryl L. Moore, David B. Olson
-
Patent number: 8691723Abstract: The sequential production of a library of N different solids, in particular heterogeneous catalysts, where N within a day is an integer of at least 2, is performed by a) producing at least two different sprayable solutions, emulsions and/or dispersions of elements and/or element compounds of the chemical elements present in the catalyst and optionally of dispersions of inorganic support materials, b) continuously metering the at least two different solutions, emulsions and/or dispersions in a predefined ratio into a mixing apparatus in which the solutions, emulsions and/or dispersions are homogeneously mixed, c) continuously drying the mixture removed from the mixing apparatus and recovering the dried mixture, d) changing the ratios in step b) and repeating steps b), c) and d) (N?1) times until N different dried mixtures are obtained, e) optionally shaping and optionally calcining the mixtures to give the solids.Type: GrantFiled: July 30, 2004Date of Patent: April 8, 2014Assignee: BASF AktiengesellschaftInventors: Hartmut Hibst, Frieder Borgmeier, Martin Dieterle
-
Patent number: 8476387Abstract: Provided is a process for preparing a (meth)acrylic ester (F) of an N-hydroxyalkylated lactam, in which a cyclic N-hydroxyalkylated lactam (L): where the structural variables as defined herein, in the presence of at least one metal salt of C1-C10-alkoxides (A), is esterified with (meth)acrylic acid (S) or transesterified with at least one (meth)acrylic ester (D), in which the metal salt of C1-C10-alkoxides (A) used as a catalyst is added in the absence of solvents and completely at the start of the reaction.Type: GrantFiled: February 11, 2008Date of Patent: July 2, 2013Assignee: BASF SEInventors: Hermann Bergmann, Frank Hoefer, Maximilian Angel
-
Publication number: 20130116396Abstract: The present invention relates to materials used for aligning liquid crystals of liquid crystal display elements and to a polymer for use in liquid crystal vertical alignment layer used in producing a liquid crystal vertical alignment layer. The polymer for use in a liquid crystal vertical alignment layer includes (a) a moiety that is photochemically isomerizable but not photochemically crosslinked, (b) a moiety that is photochemically crosslinkable, and (c) a moiety that stabilizes a vertical alignment. The polymer can be used to produce a vertical alignment layer that has a liquid crystal alignment property enabling control of alignment at a low UV dose and that offers a large pretilt angle and superior optical stability.Type: ApplicationFiled: March 29, 2011Publication date: May 9, 2013Applicant: DIC CORPORATIONInventors: Sayaka Nose, Yutaka Nagashima, Isa Nishiyama, Haruyoshi Takatsu, Martin Schadt, Vladimir Chigrinov, Hoi Sing Kwok
-
Patent number: 8436068Abstract: A composition and a polymer are provided. The composition includes the polymer and a melamine derivative. The polymer has a formula of R is hydrogen, halide, alkyl group, alkoxyl group, haloalkyl group or nitro group. n is 1-5 of integer. x+y+z=1, x>0, y?0, z?0. The melamine derivative includes R1 is hydrogen, CqH2q+1, or m and q independently is 1-10 of integer. R2, R3 and R4 independently is hydrogen, halide, or C1-C54 alkyl group.Type: GrantFiled: April 26, 2011Date of Patent: May 7, 2013Assignee: Industrial Technology Research InstituteInventors: Feng-Yu Yang, Meei-Yu Hsu, Gue-Wuu Hwang, Po-Yuan Lo
-
Patent number: 8378046Abstract: The present invention provides pressure-sensitive adhesives having a refractive index of at least 1.50. The pressure-sensitive adhesives comprise at least one monomer containing a substituted or an unsubstituted biphenyl group.Type: GrantFiled: October 29, 2009Date of Patent: February 19, 2013Assignee: 3M Innovative Properties CompanyInventors: Michael D. Determan, Albert I. Everaerts, Cheryl L. Moore, David B. Olson
-
Patent number: 8349410Abstract: A polymer formed by controlled radical polymerization includes groups that can be modified after controlled radical polymerization to form a radical. The polymer can be the reaction product of a controlled radical polymerization of radically polymerizable monomers, wherein at least one of the radically polymerizable monomers includes at least one group that can be modified after the controlled radical polymerization to form a radical. A compound includes a first group that is stimulated upon application of energy to the molecule to tether the molecule to a surface or to another polymer chain and a second group comprising a controlled radical polymerization initiator functionality. A block copolymer includes at least a first segment to impart a predetermined functionality to a target surface and at least a second segment including functional groups to interact with the targeted surface to attach the block copolymer to the surface.Type: GrantFiled: August 17, 2007Date of Patent: January 8, 2013Assignees: University of Pittsburgh—of the Commonwealth System of Higher Education, Carnegie Mellon UniversityInventors: Jinyu Huang, Alan J. Russell, Nicolay V. Tsarevsky, Krzysztof Matyjaszewski
-
Patent number: 8304164Abstract: The present invention provides a photoresist composition comprising: at least one selected from the group consisting of a monomer represented by the formula (I): wherein R1 represents a hydrogen atom or a methyl group, W1 represents a C3-C20 divalent saturated cyclic hydrocarbon group, A1 represents a single bond or *-O—CO—W1— wherein * represents a binding position to W1?N— and W1 represents a C1-C10 divalent saturated hydrocarbon group, a polymer consisting of a structural unit derived from the monomer represented by the formula (I) and a polymer consisting of a structural unit derived from the monomer represented by the formula (I) and a structural unit derived from a monomer represented by the formula (II): wherein R3 represents a hydrogen atom or a methyl group, A2 represents a single bond or *-O—CO—(CH2)n— wherein * represents a binding position to R4—, n represents an integer of 1 to 7 and R4 represents a C3-C20 saturated cyclic hydrocarbon group, a resin having an acid-labile groupType: GrantFiled: January 3, 2011Date of Patent: November 6, 2012Assignee: Sumitomo Chemical Company, LimitedInventors: Tatsuro Masuyama, Yuichi Mukai, Masahiko Shimada
-
Patent number: 8268447Abstract: To provide a transparent laminate having a pair of transparent substrates integrated via an adhesive layer, in which the adhesive layer has good tear resistance and good adhesion to the transparent substrates and has excellent transparency. In a first atmosphere, a sealed space having a curable resin composition 14 accommodated between a pair of transparent substrates 10a and 10b, is formed, and then the curable resin composition 14 is cured in a state where the outside of the sealed space is made to be a second atmosphere having a pressure higher than the first atmosphere. As the above curable resin composition, a curable resin composition comprising a urethane oligomer (a) having from 1.8 to 4 curable functional groups on average which are either or both of an acryloyloxy group and a methacryloyloxy group, per molecule, and a hydroxyalkyl methacrylate (b) having a C3-8 hydroxyalkyl group having 1 or 2 hydroxy groups, is used.Type: GrantFiled: January 25, 2010Date of Patent: September 18, 2012Assignee: Asahi Glass Company, LimitedInventors: Satoshi Niiyama, Naoko Aoki
-
Publication number: 20120125863Abstract: Methods are provided for making halide-free quaternary ammonium salt monomers. Polymers prepared from the monomers and methods of using the polymers to clarify raw, untreated water or wastewater are also disclosed.Type: ApplicationFiled: November 22, 2010Publication date: May 24, 2012Applicant: GENERAL ELECTRIC COMPANYInventors: Tamaz Guliashvili, Stephen R. Vasconcellos
-
Publication number: 20120108697Abstract: A composition and a polymer are provided. The composition includes the polymer and a melamine derivative. The polymer has a formula of R is hydrogen, halide, alkyl group, alkoxyl group, haloalkyl group or nitro group. n is 1-5 of integer. x+y+z=1, x>0, y?0, z?0. The melamine derivative includes R1 is hydrogen, CqH2q+1, or m and q independently is 1-10 of integer. R2, R3 and R4 independently is hydrogen, halide, or C1-C54 alkyl group.Type: ApplicationFiled: April 26, 2011Publication date: May 3, 2012Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Feng-Yu Yang, Meei-Yu Hsu, Gue-Wuu Hwang, Po-Yuan Lo
-
Patent number: 8168574Abstract: An interpolymer composition comprising monomer-derived units of (i) at least one of an aliphatic olefin containing from 2 to 30 carbon atoms and a vinyl aromatic monomer, and (ii) at least one alpha, beta-unsaturated acylating agent; wherein a portion of said acylating agent monomers is esterified and wherein a portion of said acylating agent monomers is condensed with at least one aromatic amine, provides good viscosity modification and dispersancy performance.Type: GrantFiled: April 18, 2005Date of Patent: May 1, 2012Assignee: The Lubrizol CorporationInventors: Daniel Visger, Daniel Vargo, Barton Schober, Suzanne Patterson, Patrick E Mosier, Christopher Friend, John Pudelski, Michael J Covitch, Calvin James, David Price, Leonard E Orzech
-
Patent number: 8124705Abstract: The invention relates to covalent polymer networks composed of macro-diacrylates and polyacrylates having shape memory properties and that can be used in medical technology.Type: GrantFiled: December 22, 2006Date of Patent: February 28, 2012Assignee: Helmholtz-Zentrum Geesthacht Zentrum Fuer Material- und Kuestenforschung GmbHInventors: Ali Abdullah Tareq Hasson, Dagmar Boltersdorf, Ralf Werner Schmidt, Maurice Cosemans
-
Publication number: 20120041165Abstract: This invention relates to coloured polymer particles preferably with surface functionality for charge retention, a process for their preparation, the use of these particles for the preparation of an electrophoretic device, colour electrophoretic displays comprising such particle, and new water-soluble dyes.Type: ApplicationFiled: January 29, 2010Publication date: February 16, 2012Applicant: MERCK PATENT GESELLSCHAFT MIT BESCHRAENKTER HAFTUNGInventors: Nils Greinert, Louise Diane Farrand, Mark James, Ashley Nathan Smith, Mark John Goulding, Daniel Walker, Safyan Khan, Paul Reynolds, Susan Hawkins, Roy Hughes
-
Patent number: 8088252Abstract: A solution with a salt-sensitive polymer binder for use in fibrous webs, where the binder contains a copolymer comprising repeat units derived from butyl acrylate, methyl methacrylate and amino functionalized alkyl acrylate or methacrylate or amino functionalized alkyl acrylamide or methacrylamide optionally including monomers such as vinyl acetate and/or vinyl acetate/ethylene. The binder solution is prepared by emulsion-polymerizing a copolymer and then neutralizing the copolymer with acid to make it water soluble. The binders are particularly suitable for strengthening nonwoven fibrous webs in disposable articles such as wet-wipes, personal care products, diapers, and the like and retain their salt-sensitivity with or without divalent metal scavengers.Type: GrantFiled: March 2, 2009Date of Patent: January 3, 2012Inventors: Rajeev Farwaha, Philip Confalone
-
Publication number: 20110258917Abstract: Quaternized terpolymer formed from (A) ethylene, (B) C2-C14-alkenyl esters of one or more aliphatic C1-C20-monocarboxylic acids or C1-C24-alkyl esters of acrylic acid or of methacrylic acid and (Cq) ethylenically unsaturated monomers which comprise at least one tertiary nitrogen atom which is partly or fully in quaternized form. The quaternized terpolymer is suitable as a fuel additive for reducing or preventing deposits, for reducing fuel consumption and for minimizing power loss in direct-injection diesel engines, especially in diesel engines with common-rail injection systems.Type: ApplicationFiled: April 25, 2011Publication date: October 27, 2011Applicant: BASF SEInventors: Ivette Garcia Castro, Cornelia Roeger-Goepfert, Wolfgang Grabarse, Klaus Mühlbach, Ludwig Völkel, Harald Böhnke, Christian Tock
-
Patent number: 7932303Abstract: A material contains at least a polymerizable N,O-functionalized acrylic acid hydroxyamide of the Formula (I) in which A is an n+m-valent linear or branched aliphatic C1 to C50 radical, in which the carbon chain can be interrupted by O, S, —CO—O—, CO—NH, O—CO—NH or NH—CO—NH, an n+m-valent aromatic C6 to C18 radical or an n+m-valent cycloaliphatic or heterocyclic C3 to C18 radical, wherein the radicals can carry one or more substituents, Y is not present, or is O, S, an ester, amide or urethane group, R1 is hydrogen, an aliphatic C1 to C20 alkyl or C3 to C8 cycloalkyl radical which can carry one or more substituents, R2 is H or a C1 to C10 alkyl radical, R3 is not present or is a C1 to C16 alkylene radical which can be interrupted by O, HG is not present, is —COOH, —P?O(OH)2; —P?O(OH)(OR4); —O—P?O(OH)2, —SO2OH or —O—P?O(OH)(OR4), R4 is a C1 to C15 alkyl radical, phenyl or benzyl radical and n is a number from 1 to 5 and m a number from 0 to 3.Type: GrantFiled: September 11, 2007Date of Patent: April 26, 2011Assignee: Ivoclar Vivadent AGInventors: Norbert Moszner, Iris Lamparth, Urs Karl Fischer, Frank Zeuner, Armin de Meijere, Volker M. Rheinberger
-
Patent number: 7902312Abstract: Several Michael addition adducts of vinylamines with ?,?. -unsaturated alkyl carbonyl compounds including amides, esters and acids, particularly acrylamide are presented. Additionally, a process for producing these Michael addition adducts is described. These adducts are generally useful in the manufacture of paper and are particularly useful as dry strength additives to make paperboard products using a papermaking machine.Type: GrantFiled: May 18, 2007Date of Patent: March 8, 2011Assignee: Hercules IncorporatedInventors: Qu-Ming Gu, Ronald R. Staib
-
Patent number: 7884141Abstract: Biomedical devices are provided herein which are formed from a polymerization product of a monomeric mixture comprising (a) one or more esterified aminoalcohol monomers; and (b) one or more biomedical device-forming monomers.Type: GrantFiled: October 9, 2008Date of Patent: February 8, 2011Assignee: Bausch & Lomb IncorporatedInventors: Joseph C. Salamone, Derek A. Schorzman
-
Process for making an acrylic monomer having one or more quaternary ammonium groups and its polymers
Patent number: 7858722Abstract: A method for making a monomer having an ethylenically unsaturated group and two or more quaternary ammonium groups per molecule, comprising: (a) reacting an excess of a monomeric reactant having at least one ethylenically unsaturated group and at least one tertiary amino group per molecule with a halohydroxyalkyl(trialkyl)quaternary ammonium salt, in an aqueous medium, (b) monitoring the pH of the aqueous medium from at least as early as the time when all reactants have been added to aqueous medium until completion of the reaction, and (c) adjusting the pH of the aqueous medium to and maintaining the pH of the aqueous medium at a value greater than or equal to 9, from the time, after all reactants have been added to aqueous medium, that the reaction mixture exhibits an apparent pH minimum until completion of the reaction.Type: GrantFiled: March 19, 2008Date of Patent: December 28, 2010Assignee: Rhodia Inc.Inventors: Leo Zhaoqing Liu, Jon D. Kiplinger, Douglas Radtke -
Patent number: 7829634Abstract: The invention relates to scorch prevention and, more specifically, to a composition which comprises a nitroxide and at least one organic peroxide and which can be used to delay scorching prior to crosslinking of thermoplastic compositions and/or elastomers. The invention also relates to a crosslinkable composition and to a crosslinking method.Type: GrantFiled: September 16, 2005Date of Patent: November 9, 2010Assignee: Arkema FranceInventors: Fabien Debaud, Jacques Kervennal, Alfredo Defrancisci, Olivier Guerret
-
Publication number: 20100189932Abstract: To provide a transparent laminate having a pair of transparent substrates integrated via an adhesive layer, in which the adhesive layer has good tear resistance and good adhesion to the transparent substrates and has excellent transparency. In a first atmosphere, a sealed space having a curable resin composition 14 accommodated between a pair of transparent substrates 10a and 10b, is formed, and then the curable resin composition 14 is cured in a state where the outside of the sealed space is made to be a second atmosphere having a pressure higher than the first atmosphere. As the above curable resin composition, a curable resin composition comprising a urethane oligomer (a) having from 1.8 to 4 curable functional groups on average which are either or both of an acryloyloxy group and a methacryloyloxy group, per molecule, and a hydroxyalkyl methacrylate (b) having a C3-8 hydroxyalkyl group having 1 or 2 hydroxy groups, is used.Type: ApplicationFiled: January 25, 2010Publication date: July 29, 2010Applicant: ASAHI GLASS COMPANY, LIMITEDInventors: Satoshi Niiyama, Naoko Aoki
-
Patent number: 7750100Abstract: Process for catalytically preparing (meth)acrylates of N-hydroxyalkylated lactams, and use thereof.Type: GrantFiled: October 27, 2006Date of Patent: July 6, 2010Assignee: BASF AktiengesellschaftInventors: Frank Hoefer, Hermann Bergmann
-
Publication number: 20090305923Abstract: An interpolymer composition comprising monomer-derived units of (i) at least one of an aliphatic olefin containing from 2 to 30 carbon atoms and a vinyl aromatic monomer, and (ii) at least one alpha, beta-unsaturated acylating agent; wherein a portion of said acylating agent monomers is esterified and wherein a portion of said acylating agent monomers is condensed with at least one aromatic amine, provides good viscosity modification and dispersancy performance.Type: ApplicationFiled: April 18, 2005Publication date: December 10, 2009Applicant: THE LUBRIZOL CORPORATIONInventors: Daniel C. Visger, David Price, Leonard E. Orzech, Patrick E. Mosier, Suzanne M. Patterson, Calvin A. James, Barton J. Schober, Christopher Friend, Michael J. Covitch, John K. Pudelski, Renee A. Eveland, Matthew D. Gieselman
-
Publication number: 20090227754Abstract: The invention relates to covalent polymer networks composed of macro-diacrylates and polyacrylates having shape memory properties and that can be used in medical technology.Type: ApplicationFiled: December 22, 2006Publication date: September 10, 2009Inventors: Ali Abdullah Tareq Hasson, Dagmar Boltersdorf, Ralf Werner Schmidt, Maurice Cosemans
-
Publication number: 20090122260Abstract: Biomedical devices are provided herein which are formed from a polymerization product of a monomeric mixture comprising (a) one or more esterified aminoalcohol monomers; and (b) one or more biomedical device-forming monomers.Type: ApplicationFiled: October 9, 2008Publication date: May 14, 2009Inventors: Joseph C. Salamone, Derek A. Schorzman
-
Publication number: 20090068380Abstract: The present invention provides uniaxially stretched polymer films that have a refractive index profile suitable for use as negative A-plates or biaxial birefringent plates in a liquid crystal display (LCD) device. These wave plates can be used to compensate for the phase retardations existing in various modes of LCDs including TN (twisted nematic), VA (vertically aligned), IPS (in-plane switching), and OCB (optically compensated bend), and therefore improving the viewing quality of the displays.Type: ApplicationFiled: August 22, 2008Publication date: March 12, 2009Inventors: Xiaoliang Joe Zheng, Frank W. Harris, Ted Calvin Germroth, Jiaokai Alexander Jing, Dong Zhang, Thauming Kuo, Brian Michael King
-
Publication number: 20090043051Abstract: Vinylamine-containing polymers are disclosed where the amine groups are substituted with (1) cationic functional groups, (2) anionic functional groups, (3) hydrophobic functional groups, (4) hydrophilic functional groups, (5) functional groups that impart amphoteric characteristics to the polymers, or (6) combinations thereof. Also disclosed are processes for preparing such polymers, as well as compositions comprising such polymers. Among other applications, these polymers can be used in papermaking applications as dry strength additives, wet strength additives, retention aids, drainage aids, and pitch and stickies control agents.Type: ApplicationFiled: July 31, 2008Publication date: February 12, 2009Inventors: Qu-Ming Gu, Jonathan M. McKay, Richard J. Riehle
-
Publication number: 20080314767Abstract: Disclosed are ophthalmic solutions such as packaging solutions for storing ophthalmic devices and lens care solutions for cleaning, disinfecting, rinsing and/or storing ophthalmic devices. The ophthalmic solutions contain at least a polymerization product obtained from a monomeric mixture comprising (a) a monomer bearing a center of permanent positive charge and (b) a non-ionic ethylenically unsaturated monomer, wherein the solution has an osmolality of at least about 200 mOsm/kg, and a pH of about 4 to about 9.Type: ApplicationFiled: June 22, 2007Publication date: December 25, 2008Applicant: BAUSCH & LOMB INCORPORATEDInventors: Yu-Chin Lai, Weihong Lang
-
Publication number: 20080319098Abstract: The present invention discloses an endodontic sealer which comprises a urethane-acrylate oligomer, a diluting monomer, at least one photo-initiator, at least one thermal-initiator, and a filler, wherein the urethane-acrylate oligomer is obtained by firstly reacting the acrylate with the diisocyanate to form an intermediate with only one isocyanate group, and then reacting the intermediate with the polyol to form the desired urethane-acrylate oligomer.Type: ApplicationFiled: June 20, 2007Publication date: December 25, 2008Applicant: NATIONAL TAIWAN UNIVERSITYInventors: Kuo-Huang Hsieh, Chun-Pin Lin, Ken-Hsuan Liao, Chung-Yi Lee
-
Publication number: 20080274424Abstract: A positive-working photosensitive composition for use in making an imageable element comprises one or more vinyl copolymers wherein said vinyl copolymer are homopolymer or copolymer containing monomers comprising at least two functional groups such as HOOC—C?C—CONH—R, and may further comprise a converter substance for converting radiation into heat. The converter substance may be selected to have an absorption spectrum that is optimized to absorb at the wavelength of imaging radiation. The composition may be coated onto a suitable substrate to create a lithographic printing precursor. The precursor may be imagewise irradiated with radiation and optionally developed with a developer liquid to produce a lithographic printing master. A positive-working lithographic printing precursor may be prepared using the composition.Type: ApplicationFiled: May 5, 2007Publication date: November 6, 2008Inventor: YISONG YU
-
Publication number: 20080118972Abstract: Provided is a method of isolating nucleic acid from cells using a single surface, wherein a compound represented by Formula 1 is bound to the surface. Also provided are an apparatus for isolation of nucleic acids, and a bead for isolating nucleic acids.Type: ApplicationFiled: March 29, 2007Publication date: May 22, 2008Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Chang eun YOO, Sung-young JEONG, Young-rok KIM
-
Patent number: 7279505Abstract: The present invention provides a radiation-curable prepolymer. The radiation-curable prepolymer of the invention is prepared by reacting an isocyanate-capped polyurethane with an ethylenically unsaturated amine or an ethylenically unsaturated monohydroxy compound or a mixture thereof, wherein the isocyanate-capped polyurethane is a copolymerization production of: (a) at least one polyalkylene glycol; (b) at least one branching agent having at least three hydroxy groups; and (c) at least one di- or polyisocyanate. The radiation-curable prepolymer of the invention can find use in economically producing contact lenses which have durable, highly elastic soft contact lenses with desired physical properties. In addition, the present invention provides method for making a radiation-curable prepolymer of the invention and for making a medical device, preferably an ophthalmic device, more preferably a contact lens.Type: GrantFiled: October 5, 2005Date of Patent: October 9, 2007Assignee: Novartis AGInventors: John Christopher Phelan, Michael Hugh Quinn, Joshua Andrew Wallach
-
Patent number: 7262252Abstract: There is provided a fluorine-containing resin composition which is used for nonlinear optical material and comprises (I) a fluorine-containing prepolymer and (II) an organic compound exhibiting a second- or higher-order nonlinear optical effect, in which the fluorine-containing prepolymer (I): (1) is a non-crystalline polymer having a fluorine content of not less than 25% and (2) has a carbon-carbon double bond in a polymer side chain or at an end of a polymer trunk chain and also there is provided a nonlinear optical waveguide device produced from the fluorine-containing resin composition. A suitable nonlinear optical material having a stable structure with a nonlinear substance is produced, and an excellent nonlinear optical waveguide device is produced by relatively simple steps while maintaining transparency in a near infrared region.Type: GrantFiled: November 12, 2003Date of Patent: August 28, 2007Assignee: Daikin Industries, Ltd.Inventors: Takayuki Araki, Yoshito Tanaka, Mihoko Ohashi, Yuzo Komatsu
-
Patent number: 7262250Abstract: The present invention relates to the prevention of scorching before crosslinking of a thermoplastic and/or elastomeric composition with peroxides or azo compounds. This is achieved by using a family of specific nitroxides as additive.Type: GrantFiled: April 29, 2005Date of Patent: August 28, 2007Assignee: Arkema FranceInventors: Fabien Debaud, Alfredo Defrancisci, Olivier Guerret, Jacques Kervennal
-
Patent number: 7214752Abstract: Homopolymers suitable for storage of information provided optically are disclosed.Type: GrantFiled: November 29, 2004Date of Patent: May 8, 2007Assignee: Bayer MaterialScience AGInventors: Horst Berneth, Uwe Claussen, Serguei Kostromine, Ralf Neigl, Hans-Joachim Vedder
-
Patent number: 6995192Abstract: The present invention provides a radiation-curable prepolymer. The radiation-curable prepolymer of the invention is prepared by reacting an isocyanate-capped polyurethane with an ethylenically unsaturated amine or an ethylenically unsaturated monohydroxy compound or a mixture thereof, wherein the isocyanate-capped polyurethane is a copolymerization production of: (a) at least one polyalkylene glycol; (b) at least one branching agent having at least three hydroxy groups; and (c) at least one di- or polyisocyanate. The radiation-curable prepolymer of the invention can find use in economically producing contact lenses which have durable, highly elastic soft contact lenses with desired physical properties. In addition, the present invention provides method for making a radiation-curable prepolymer of the invention and for making a medical device, preferably an ophthalmic device, more preferably a contact lens.Type: GrantFiled: August 13, 2003Date of Patent: February 7, 2006Assignee: Novartis AGInventors: John Christopher Phelan, Michael Hugh Quinn, Joshua Andrew Wallach
-
Patent number: 6875833Abstract: Disclosed are monomers which contain groups that are at least trinuclear, which are capable of absorbing the electromagnetic radiation of visible light, and which are structured such that in their thermodynamically stable state they are distended and strongly anisometric. Homopolymers prepared from such monomers, a process of preparing such homopolymers, and articles comprising such homopolymers are also disclosed. The trinuclear groups of the monomers include at least one electron-attracting substituent which gives rise to a dipole moment which forms an angle of at least 20° with the longitudinal axis of the trinuclear groups.Type: GrantFiled: July 3, 2002Date of Patent: April 5, 2005Assignee: Bayer AktiengesellschaftInventors: Horst Berneth, Uwe Claussen, Serguei Kostromine, Ralf Neigl, Hans-Joachim Vedder
-
Patent number: 6833421Abstract: New photoactive polymers, their use as liquid crystal (LC) orientation layers and their use in the construction of unstructured and structured optical and electro-optical elements and multi-layer systems. The new photoactive polymers are crosslinkable polymers that can be readily cross linked over a relatively short irradiation time.Type: GrantFiled: January 9, 2002Date of Patent: December 21, 2004Assignee: Rolic AGInventor: Guy Marck
-
Patent number: 6784267Abstract: A water-soluble, cationic polymer comprising from about 1 to about 65 mole percent of one or more cationic monomers, from about 99 to about 35 mole percent of one or more nonionic monomers and from about 1 to about 1000 ppm, based on the total monomer content, of one or more hyperbranched monomers wherein the hyperbranched monomer contains from about 2 to about 20 allyl, vinyl, or acrylic end groups and method of dewatering sludge is disclosed.Type: GrantFiled: July 25, 2002Date of Patent: August 31, 2004Assignee: Nalco CompanyInventors: William J. Ward, Ananthasubramanian Sivakumar
-
Patent number: 6767979Abstract: A polymer is formed of ethylenically unsaturated monomers including a zwitterionic monomer, an aromatic monomer and a cross-linking monomer. Preferably the crosslinking monomer includes at least one a group containing compound and at least one aliphatic group containing compound. The polymer is water-swellable and a hydrogen has optical and mechanical properties rendering it suitable for use as an intraocular refractive device such as an intraocular lens.Type: GrantFiled: September 20, 2001Date of Patent: July 27, 2004Assignee: Biocompatibles UK LimitedInventors: Andrew Victor Graham Muir, Lee Rowan, Stephen Alister Jones, John Charles Stedman