Contains Oxygen Atom Other Than In Amide Form Bonded To A Carbon Atom Patents (Class 526/304)
  • Patent number: 7160970
    Abstract: The present invention is directed to methods for preparing multi-functional emulsion polymers.
    Type: Grant
    Filed: September 17, 2004
    Date of Patent: January 9, 2007
    Assignee: Rohm and Haas Company
    Inventors: Marianne Patricia Creamer, Lester William Greene, Jr., Ari Kenneth Kar, Miao Wang
  • Patent number: 7160971
    Abstract: The present invention provides novel multi-functional methacrylic copolymers that exhibit cationic pH-sensitive behavior as well as good water solubility under acidic conditions. The copolymers are constructed from tertiary amine methacrylates and poly(ethylene glycol) containing methacrylates. The copolymers are useful as gene vectors, pharmaceutical carriers, and in protein separation applications.
    Type: Grant
    Filed: November 22, 2005
    Date of Patent: January 9, 2007
    Assignee: Iowa State University Research Foundation
    Inventors: Surya K. Mallapragada, Brian C. Anderson, Paul D. Bloom, Valerie V. Sheares Ashby
  • Patent number: 7157603
    Abstract: The method of separating reversibly thermally precipitable oligomeric N-substituted (meth)acrylamides and conjugates thereof from aqueous solution includes thermally precipitating the oligomeric N-substituted (meth)acrylamides and the conjugates thereof from an aqueous solution in the presence of at least one salt and then filtering in the presence of at least one filter aid. The filter aid has a wet density of 0.2–0.3 g/cc and comprises?99% cellulose with fiber lengths<75 ?m (99%) and=?m (65%). The salt can be a potassium, sodium, ammonium, calcium and/or magnesium chloride, acetate and/or sulfate salt and can be present in the aqueous solution in a concentration between 0.01 M and 3 M.
    Type: Grant
    Filed: May 6, 2002
    Date of Patent: January 2, 2007
    Assignee: Polytag Technology SA
    Inventor: Frank Hilbrig
  • Patent number: 7157538
    Abstract: Covalently-bound, hydrophilic copolymer coatings for implants are disclosed. The copolymer coatings comprise a hydrophobic aryl acrylic monomer, a hydrophilic monomer selected from the group consisting of hydroxyalkyl (meth)acrylates, n-vinyl pyrrolidone and acrylamides, and a (meth)acrylamide reactive plasticizer.
    Type: Grant
    Filed: August 13, 2004
    Date of Patent: January 2, 2007
    Assignee: Alcon, Inc.
    Inventors: Thomas A. Callaghan, Albert R. LeBoeuf
  • Patent number: 7138472
    Abstract: A high molecular weight, water-soluble polymer comprising pendant salicylic acid groups and having a weight average molecular weight of at least about 2,000,000 daltons and use of the polymer for clarifying red mud-containing liquors generated in the Bayer process for the recovery of alumina from bauxite.
    Type: Grant
    Filed: February 24, 2003
    Date of Patent: November 21, 2006
    Assignee: Nalco Company
    Inventors: Murat Quadir, Everett C. Phillips, Larry E. Brammer, Jr., Robert P. Mahoney, John D. Kildea, Manian Ramesh, John T. Malito
  • Patent number: 7125469
    Abstract: Temporary wet strength resins, more particularly, temporary wet strength resins comprising a polymer backbone, wherein the polymer backbone comprises a co-crosslinking monomeric unit, preferably a reversible co-crosslinking monomeric unit, especially in the presence of water, a homo-crosslinking monomeric units and a cationic monomeric unit, fibrous structures comprising such temporary wet strength resins, sanitary tissue products comprising such fibrous structures and processes for making such fibrous structures and/or such sanitary tissue product. Such fibrous structures and sanitary tissue products exhibit high initial wet tensile strength and improved flushability properties.
    Type: Grant
    Filed: October 16, 2003
    Date of Patent: October 24, 2006
    Assignee: The Procter & Gamble Company
    Inventors: Robert Lee Barcus, Khosrow Parviz Mohammadi, Angela Marie Leimbach, Stephen Robert Kelly
  • Patent number: 7109324
    Abstract: A process for chemically bonding an odor-encapsulating agent to textiles includes reacting a cyclodextrin with a cross-linking agent capable of forming ether bonds with the cyclodextrin and with the textile material, and curing the textile material treated with a mixture of the cyclodextrin and cross-linking agent. Preferably, the cross-linking agent is imidazolidone, which forms an ether bond with a hydroxyl group on the cyclodextrin and with a hydroxyl group. In textile materials containing cellulose, imidazolidone forms an ether bond with a hydroxyl group on the cellulose. An active agent can be complexed with the cyclodextrin for release. Textiles formed by such a process can comprise an article of clothing adapted to trap odors emanating from a wearer.
    Type: Grant
    Filed: February 7, 2005
    Date of Patent: September 19, 2006
    Assignee: Dan River, Inc.
    Inventors: Donald Eugene Todd, David Alan Brown
  • Patent number: 7060776
    Abstract: The invention relates to an acrylic monomer defined by formula (I): wherein R1, R2 and R3 are H or CH3; R4 and R5 are H or OH; R6 and R7 are H or OH; R8 is H or CH3; m is 2–4; and n and p are 0 or 1. The invention also relates to a polymer comprised of repeated such monomer units as well as a separation matrix prepared thereof.
    Type: Grant
    Filed: December 17, 2002
    Date of Patent: June 13, 2006
    Assignee: GE Healthcare Bio-Sciences AB
    Inventors: Mattias Algotsson, Bengt Bjellqvist, Ronnie Palmgren
  • Patent number: 7041762
    Abstract: The present invention relates to a polyvalent imprinted polymer useful in medicine and biotechnology and to a process for the preparation thereof. More particularly it relates to the said polymer of formula (1) herein below wherein R is H, CH3, C2H5, C6H5, R1is H, CH3, C2H5, C6H5; R2 is H, CH3, C2H5, C6H5, X is based on 4-Amino Butyric Acid (4-ABa), 6-Amino Caproic Acid (6-ACA), 8-Amino Octanoic Acid (8-AOA), 10-Amino Decanoic Acid (10-ADA), 11-Amino Undecanoic Acid (11-ADA), n is from 3 to 50, L is OH, NH2, OCH3, NH—CH—(CH3)2, Cl, OCH2, CH?CH2, O—CH?CH2; and Y is N-Acetyl Glucosamine (NAG), mannose, galactose, sialic acid, fructose, ribulose, erythrolose, xylulose, psicose, sorbose tagaose, glucopyranose, fructofuranose, deoxyribose, galactosamine, sucrose, lactose, isomaltose, maltose, cellobiose, cellulose and amylose; Z is based on chain terminating agent such as Mercapto Ethanol, Mercapto, Mercapto Propanol, Mercaptoethylamine HCl.
    Type: Grant
    Filed: March 31, 2003
    Date of Patent: May 9, 2006
    Assignee: Council of Scientific and Industrial Research
    Inventors: Mohan Gopalkrishna Kulkarni, Jayant Jagannath Khandare
  • Patent number: 7030201
    Abstract: The present invention relates to bottom antireflective coating compositions and polymers useful in making such compositions.
    Type: Grant
    Filed: November 26, 2003
    Date of Patent: April 18, 2006
    Assignee: AZ Electronic Materials USA Corp.
    Inventors: Huirong Yao, Shuji Ding-Lee, Hengpeng Wu, Zhong Xiang
  • Patent number: 6994791
    Abstract: The present invention relates to an adsorbent material for chromatography comprising a polymer immobilized onto a support, wherein the polymer backbone is attached to the support by one or more linkages which comprise one or more amide groups. It further relates to a method for preparing an adsorbent material for chromatography wherein a support is reacted with a polymer.
    Type: Grant
    Filed: June 27, 2003
    Date of Patent: February 7, 2006
    Assignee: Akzo Nobel N.V.
    Inventors: Per Möller, Domingo Sanchez, Peter Gidlund, Börje S. Persson, Lars Jonsson
  • Patent number: 6995192
    Abstract: 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: Grant
    Filed: August 13, 2003
    Date of Patent: February 7, 2006
    Assignee: Novartis AG
    Inventors: John Christopher Phelan, Michael Hugh Quinn, Joshua Andrew Wallach
  • Patent number: 6984705
    Abstract: A composition comprising expandable cross linked polymeric microparticles having an unexpanded volume average particle size diameter of from about 0.05 to about 10 microns and a cross linking agent content of from about 9,000 to about 200,000 ppm of labile cross linkers and from 0 to about 300 ppm of non-labile cross linkers. The composition is used for modifying the permeability of subterranean formations and increasing the mobilization and/or recovery rate of hydrocarbon fluids present in the formations.
    Type: Grant
    Filed: September 3, 2002
    Date of Patent: January 10, 2006
    Assignee: Ondeo Nalco Energy Services, L.P.
    Inventors: Kin-Tai Chang, Harry Frampton, James C. Morgan
  • Patent number: 6956092
    Abstract: The present invention provides a novel high-molecular substance having a unique function and a process for producing the same. That is, it is a poly(meth)acrylamide which has a syndiotacticity of 50% or lower and is highly isotactic or heterotactic. The poly(meth)acrylamide is obtained by radical-polymerizing an acrylamide or methacrylamide in the presence of a Lewis acid catalyst.
    Type: Grant
    Filed: April 25, 2002
    Date of Patent: October 18, 2005
    Assignee: Daicel Chemical Industries, Ltd.
    Inventors: Yoshio Okamoto, Yutaka Isobe
  • Patent number: 6946510
    Abstract: The invention relates to the use of a slightly anionic and water-soluble copolymer, as a dispersing agent and/or an agent for assisting the grinding of pigments and/or mineral fillers in aqueous suspension giving on the one hand a low Zeta potential to the aqueous suspensions of the said fillers and/or pigments and on the other hand affording an electro-steric stabilisation of the said suspensions. The invention also relates to the said aqueous suspensions of mineral pigments and/or fillers and their uses in the fields of paper, such as the manufacture or coating of paper, and drilling muds used for petroleum prospecting or extraction. The invention also relates to the use of the said dispersing agents and/or agent for assisting the grinding in the field of paints and plastic materials such as thermoplastic or thermosetting resins.
    Type: Grant
    Filed: June 12, 2001
    Date of Patent: September 20, 2005
    Assignee: Coatex S.A.S
    Inventors: Jean-Marc Suau, Christian Jacquemet, Jacques Mongoin, Patrick A. C. Gane
  • Patent number: 6930133
    Abstract: Low density polymeric beads made by polymerizing monomeric building blocks into large crosslinked polymer molecules in porous, spherical bead form by droplet or suspension polymerization in the presence of a porogen.
    Type: Grant
    Filed: May 30, 2003
    Date of Patent: August 16, 2005
    Inventors: Robert L. Albright, Richard Mapp
  • Patent number: 6875833
    Abstract: 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: Grant
    Filed: July 3, 2002
    Date of Patent: April 5, 2005
    Assignee: Bayer Aktiengesellschaft
    Inventors: Horst Berneth, Uwe Claussen, Serguei Kostromine, Ralf Neigl, Hans-Joachim Vedder
  • Patent number: 6861103
    Abstract: Nitroxide mediated free radical polymerization of vaporized vinyl monomers, including acrylic acid (AAc), styrene (St), N-2-(hydroxypropyl)methacrylamide (HPMA) and N-isopropyl acrylamide (NIPAAm), on silicon wafers is demonstrated. FTIR, ellipsometry and contact angle goniometry were used to characterize the chemical structures, thickness and hydrophilicity of the films. The growth of film is linearly proportional to its reaction time, leading to the easy and exact control of polymer film thickness from nanometers to submicrons. The capability of polymerizing various monomers allows us to fabricate various functional polymer brushes. The reversible thermo-responsiveness of a 200 nm thick grafted poly(NIPAAm) film in aqueous solution is demonstrated with over 50% change in thickness at its lower critical solution temperature. A tri-block copolymer of poly(AAc)-b-polySt-b-poly(HPMA) is successfully synthesized, proving the renewability of TEMPO-mediated polymerization at vapor phase.
    Type: Grant
    Filed: February 7, 2003
    Date of Patent: March 1, 2005
    Assignee: The Regents of the University of California
    Inventors: Ying Chih Chang, Jun Li, Xiaoru Chen
  • Patent number: 6861520
    Abstract: A process for chemically bonding an odor-encapsulating agent to textiles includes reacting a cyclodextrin with a cross-linking agent capable of forming ether bonds with the cyclodextrin and with the textile material, and curing the textile material treated with a mixture of the cyclodextrin and cross-linking agent. Preferably, the cross-linking agent is imidazolidone, which forms an ether bond with a hydroxyl group on the cyclodextrin and with a hydroxyl group. In textile materials containing cellulose, imidazolidone forms an ether bond with a hydroxyl group on the cellulose. An active agent can be complexed with the cyclodextrin for release. Textiles formed by such a process can comprise an article of clothing adapted to trap odors emanating from a wearer.
    Type: Grant
    Filed: April 30, 2003
    Date of Patent: March 1, 2005
    Assignee: Dan River, Inc.
    Inventors: Donald Eugene Todd, David Alan Brown
  • Patent number: 6846892
    Abstract: The present invention relates to compositions comprising poly-HEMA having a peak molecular weight between about 25,000 and about 100,000, preferably between 25,000 and 80,000 and a polydispersity of less than about 2 to less than about 3.8 respectively and covalently bonded thereon, at least one cross-linkable functional group. The present invention further relates to low polydispersity poly-HEMA suitable for making the crosslinkable prepolymers, processes for functionalizing and purifying said poly-HEMA to form said crosslinkable prepolymers, viscous solutions made from said crosslinkable prepolymers, hydrogels made from said viscous solutions and articles made from said crosslinkable polymers, hydrogels and viscous solutions.
    Type: Grant
    Filed: February 14, 2003
    Date of Patent: January 25, 2005
    Assignee: Johnson & Johnson Vision Care, Inc.
    Inventors: Ture Kindt-Larsen, Per Wolff, Jens-Erik Sørensen, Frederik Resen Steenstrup, Hélène Rossignol, Frank F. Molock
  • Patent number: 6841648
    Abstract: The present invention relates to polymers which are modified by functional end groups and are based on conjugated dienes or on conjugated dienes and vinylaromatic compounds, a process for their preparation and their use for the production of rubber shaped articles of all types, in particular for the production of tires and tire components, such as tire treads.
    Type: Grant
    Filed: December 9, 2002
    Date of Patent: January 11, 2005
    Assignee: Bayer Aktiengesellschaft
    Inventors: Michael Grün, Wilfried Braubach
  • Patent number: 6833421
    Abstract: 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: Grant
    Filed: January 9, 2002
    Date of Patent: December 21, 2004
    Assignee: Rolic AG
    Inventor: Guy Marck
  • Patent number: 6825308
    Abstract: The present invention relates to copolymers for applications in medicine and biotechnology and preparation thereof. Copolymers comprises polyvalent N-Acetyl Glucosamine(NAG) in polyvalent form and bind more efficiently to lysozyme than NAG itself. The copolymers exhibit effective inhibition even at very low ligand concentrations. The copolymers could be used for prevention and treatment of bacterial and viral infections. Moreover, these copolymers form are stimuli sensitive polymers and can be used for the recovery of biomolecules. The methodology can be extended to other ligands such as sialic acid and used for preventing influenza and/or rotavirus infections. It also provides a method for the synthesis of copolymers wherein polymers comprising sequences of specific ligands are required.
    Type: Grant
    Filed: October 29, 2003
    Date of Patent: November 30, 2004
    Assignee: Council of Scientific and Industrial Research
    Inventors: Mohan Gopalkrishna Kulkarni, Jayant Jagannath Khandare
  • Patent number: 6822064
    Abstract: The present invention relates to a polymerizable macromers for applications in medicine and biotechnology and synthesis thereof. Macromers comprises polyvalent various carbohydrates including N-Acetyl Glucosamine(NAG) which bind more efficiently to lysozyme than NAG itself. Effective inhibition of lysozyme is possible even at very low ligand concentrations. The polymerizable macromer could be used for prevention and treatment of bacterial and viral infections. Moreover these macromers can be copolymerized with other comonomers to form stimuli sensitive polymers and used for the recovery of biomolecules. The methodology can be extended to other ligands such as sialic acid and used for preventing influenza and/or rotavirus infections.
    Type: Grant
    Filed: October 29, 2003
    Date of Patent: November 23, 2004
    Assignee: Council of Scientific and Industrial Research
    Inventors: Mohan Gopalkrishna Kulkarni, Jayant Jagannath Khandare
  • Patent number: 6818716
    Abstract: Photoiniferters for controlled radical polymerizations and telechelic copolymers comprising polymerized units of one or more free radically (co)polymerizable monomers having a first azalactone terminal group and a second dithiocarbamate terminal group are described.
    Type: Grant
    Filed: April 12, 2004
    Date of Patent: November 16, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Michael S. Wendland, Kevin M. Lewandowski, Duane D. Fansler, Babu N. Gaddam, Steven M. Heilmann
  • Publication number: 20040186240
    Abstract: A carbamate or terminal urea functional vinyl polymer is prepared by reacting a compound having an hydroxyl group and a carbamate group, terminal urea group, or a group that can be converted to a carbamate or terminal urea group, with a cyclic carboxylic acid anhydride group to form an ester bond and a free acid group from the anhydride; and reacting the free acid group with a compound having an epoxide group. The cyclic carboxylic acid anhydride group may be pendant to a vinyl polymer, or one of the compound having an hydroxyl group, a compound having the cyclic carboxylic acid anhydride group, and the compound having an epoxide group may have polymerizable ethylenic unsaturation that is polymerized, optionally with one or more copolymerizable monomers to form a vinyl polymer. When the compound having an hydroxyl group has a group that can be converted to a carbamate or terminal urea group, the group is converted to the carbamate or terminal urea group after step (a).
    Type: Application
    Filed: April 1, 2004
    Publication date: September 23, 2004
    Inventors: Donald H. Campbell, Donald L. St. Aubin, Walter H. Ohrbom
  • Patent number: 6784266
    Abstract: The present invention relates to a process for preparing copolymer hydrogels with controlled molecular weights and having both thermo- and pH-responsive properties, wherein the process comprises the steps of (a) providing sulfonamide type styrenic or (meth)acrylamide-based monomers exhibiting different pKa values; (b) providing poly(N-isopropylacrylamide) or crosslinked poly(N-isopropylacrylamide-co-methylene bisacrylamide) hydrogels having thermo-responsive properties; and (c) providing several hydrogels exhibiting pH-sensitive properties and random or block copolymerizations of the sulfonamide type styrenic or (meth)acrylamide-based monomers prepared in step (a) with N-isopropylacrylamide and/or methylene bisacrylamide monomers used in step (b) in a polar or non-polar solvent; wherein said steps (b) and (c) are carried out by controlled/living radical polymerization using alkyl halides as the initiators and the transition metals with phosphine or amine ligands as the catalysts.
    Type: Grant
    Filed: October 28, 2002
    Date of Patent: August 31, 2004
    Assignees: Korea Institute of Science and Technology, Youl Chon Chemical Co., Inc.
    Inventors: Jungahn Kim, Kwang Ung Kim, Sang Seob Kim, Keon Hyeong Kim, Dong-Youn Shin, Soon-Geun Hwang, Jang Seop Kim
  • Patent number: 6784265
    Abstract: Initiators for nitroxide-mediated radical polymerizations are described. The initiators have an azlactone or ring-opened azlactone moiety to provide telechelic (co)polymers.
    Type: Grant
    Filed: December 3, 2003
    Date of Patent: August 31, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Duane D. Fansler, Kevin M. Lewandowski, Michael S. Wendland, Babu N. Gaddam
  • Patent number: 6784264
    Abstract: Initiators for nitroxide-mediated radical polymerizations are described. The initiators have an azlactone or ring-opened azlactone moiety to provide telechelic (co)polymers.
    Type: Grant
    Filed: December 3, 2003
    Date of Patent: August 31, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Kevin M. Lewandowski, Duane D. Fansler, Michael S. Wendland, Babu N. Gaddam
  • Publication number: 20040152852
    Abstract: Initiators for nitroxide-mediated radical polymerizations are described. The initiators have an azlactone or ring-opened azlactone moiety to provide telechelic (co)polymers.
    Type: Application
    Filed: December 3, 2003
    Publication date: August 5, 2004
    Applicant: 3M Innovative Properties Company
    Inventors: Kevin M. Lewandowski, Duane D. Fansler, Michael S. Wendland, Babu N. Gaddam
  • Publication number: 20040152853
    Abstract: Initiators for nitroxide-mediated radical polymerizations are described. The initiators have an azlactone or ring-opened azlactone moiety to provide telechelic (co)polymers.
    Type: Application
    Filed: December 3, 2003
    Publication date: August 5, 2004
    Applicant: 3M Innovative Properties Company
    Inventors: Duane D. Fansler, Kevin M. Lewandowski, Michael S. Wendland, Babu N. Gaddam
  • Patent number: 6770285
    Abstract: Hydrophobic, oil-absorbing polymeric compositions, prepared from high levels of hydrophobic monomers, are provided for transferring oily substances and hydrophobic materials to and from various surfaces in a heterogeneous medium. A reversible process is described for transferring oily substances and hydrophobic materials to and from various surfaces in a heterogeneous medium using oil-absorbing films, solid particles or dispersions of aqueous emulsion polymers prepared from hydrophobic monomers.
    Type: Grant
    Filed: November 20, 2001
    Date of Patent: August 3, 2004
    Assignee: Rohm and Haas Company
    Inventors: Andrea C. Keenan, Willie Lau, Curtis Schwartz
  • Patent number: 6743881
    Abstract: The present invention relates to a polymer for a chemically amplified resist and a resist composition using the same. The present invention provides a polymer represented by the Formula (1) and a chemically resist composition for deep ultraviolet light comprising the same, The chemically amplified resist composition comprising the polymer represented by the formula (1) of the present invention responds process and can embody a micro-paten of high resolution on a substrate.
    Type: Grant
    Filed: April 16, 2003
    Date of Patent: June 1, 2004
    Assignee: Dongjin Semichem Co., Ltd.
    Inventors: Deog-Bae Kim, Hyeon-Jin Kim, Yong-Joon Choi, Yoon-Sik Chung
  • Patent number: 6734261
    Abstract: An adhesion promoter for a water-based adhesive, said adhesion promoter having the general formula:
    Type: Grant
    Filed: November 2, 2001
    Date of Patent: May 11, 2004
    Assignee: Pontificia Universidad Catolica del Peru
    Inventor: Juan Carlos Rueda Sanchez
  • Patent number: 6703468
    Abstract: A composition comprising a polymer containing a compound represented by Formula (1) or a salt thereof as a constituent monomer, or a polymer containing a structure represented by Formula (9) as a partial structure is used for protecting or improving skin. In the formula, R1, R2 and R3 each independently represent hydrogen atom, an alkyl group, an alkoxyl group, or an alkylamino group; R4 represents an amino acid residue, a polyamine residue, or an aminoalcohol residue; and X represents oxygen atom or a group represented as NH. In the formula, R1, R2 and R3 each independently represent hydrogen atom, an alkyl group, an alkoxyl group, or an alkylamino group; R4 represents an amino acid residue, a polyamine residue, or an aminoalcohol residue; and X represents oxygen atom or a group represented as NH.
    Type: Grant
    Filed: August 20, 2001
    Date of Patent: March 9, 2004
    Assignee: Pola Chemical Industries Inc.
    Inventors: Michi Otiai, Takao Hattori, Yoshio Kitada, Hideo Kuroda, Midori Oyobikawa, Satoshi Ichinomiya
  • Publication number: 20040024096
    Abstract: The present invention relates to a process for preparing copolymer hydrogels with controlled molecular weights and having both thermo- and pH-responsive properties, wherein the process comprises the steps of (a) providing sulfonamide type styrenic or (meth)acrylamide-based monomers exhibiting different pKa values; (b) providing poly(N-isopropylacrylamide) or crosslinked poly(N-isopropylacrylamide-co-methylene bisacrylamide) hydrogels having thermo-responsive properties; and (c) providing several hydrogels exhibiting pH-sensitive properties and random or block copolymerizations of the sulfonamide type styrenic or (meth)acrylamide-based monomers prepared in step (a) with N-isopropylacrylamide and/or methylene bisacrylamide monomers used in step (b) in a polar or non-polar solvent; wherein said steps (b) and (c) are carried out by controlled/living radical polymerization using alkyl halides as the initiators and the transition metals with phosphine or amine ligands as the catalysts.
    Type: Application
    Filed: October 28, 2002
    Publication date: February 5, 2004
    Inventors: Jungahn Kim, Kwang Ung Kim, Sang Seob Kim, Keon Hyeong Kim, Dong-Youn Shin, Soon-Geun Hwang, Jang Seop Kim
  • Patent number: 6680348
    Abstract: A cement dispersant (especially a dispersant for concretes with ultrahigh performance) comprising as a main component a water-soluble amphoteric copolymer obtained by copolymerizing (A) a polyamide-polyamine of an alkylene oxide adduct thereof with (B) (meth)acrylic acid or an alkali metal, ammonium, or alkanolamine salt thereof and (C) a polyalkylene glycol ester of (meth)acrylic acid in an A/B/C ratio of (10-40)/(10-40)/(50-80) (wt. %); and a concrete composition (especially an ultral high-performance concrete) containing the dispersant. The dispersant satisfies all of a water-reducing effect, slump flow retention, strength development, etc.
    Type: Grant
    Filed: June 20, 2001
    Date of Patent: January 20, 2004
    Assignees: Sika Ltd., Toho Chemical Industry Co., Ltd.
    Inventors: Toshihiko Amaya, Akira Ikeda, Jun Imamura, Atsushi Kobayashi, Kaname Saito, Wernher M. Danzinger, Tetsu Tomoyose
  • Patent number: 6680362
    Abstract: Initiators for nitroxide-mediated radical polymerizations are described. The initiators have an azlactone or ring-opened azlactone moiety to provide telechelic (co)polymers.
    Type: Grant
    Filed: February 5, 2003
    Date of Patent: January 20, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Duane D. Fansler, Kevin M. Lewandowski, Michael S. Wendland, Babu N. Gaddam
  • Patent number: 6677413
    Abstract: Initiators for nitroxide-mediated radical polymerizations are described. The initiators have an azlactone or ring-opened azlactone moiety to provide telechelic (co)polymers.
    Type: Grant
    Filed: February 5, 2003
    Date of Patent: January 13, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Kevin M. Lewandowski, Duane D. Fansler, Michael S. Wendland, Babu N. Gaddam
  • Patent number: 6673886
    Abstract: Optically transparent, high refractive index hydrogels and intraocular lenses fabricated therefrom. The preferred hydrogels have a refractive index of 1.45 or above and a water content of approximately 5 to 30 percent by weight.
    Type: Grant
    Filed: October 10, 2001
    Date of Patent: January 6, 2004
    Assignee: Bausch & Lomb Incorporated
    Inventor: David P. Vanderbilt
  • Publication number: 20030225230
    Abstract: Polymer for antifouling coatings which comprises units corresponding to the following monomers: A) 5 to 100 mol. % of one or more compounds of general formula (I) in which R=H or CH3; X=O or S; R1=Ph(R2)m, —C(H)3−(p+q)(CO—R)3p(COOR3)q, —(CH2)n−(CO)t—COOR3 or optionally substituted thiadiazolyl and thiazolylsulfamyl groups; Ph=phenyl; m=1-3; p=0-3; q=0-3; p+q=1-3; s=0 or 1; t=0 or 1; R2=each independently selected from halogen, —C(O)H, —COOR3, —CH2—COOR3, —O—R3 , —NH COOR3, —NH—CO—R3 and —NH2; R3=II or optionally halogen substituted alkyl, aryl, cycloalkyl, aralkyl groups with 1-10 C atoms; and B) 0 to 95 mol. % of one or more other ethylenically unsaturated compound.
    Type: Application
    Filed: December 8, 2000
    Publication date: December 4, 2003
    Applicant: Jotun A/S
    Inventors: Thoralv Undrum, Marianne Terland Nilsen, Marit Dahling
  • Patent number: 6630557
    Abstract: Compounds of general formula (I), the described methods to prepare these macromonomer compounds, and the copolymer products of these compounds with other vinyl monomers. Wherein W is a capping group; l is 0 or 1; n is 2-1000; m is 2-5; R1 is CH2═CH—CH2—, or CH2═CH—O—R8—; R2 is selected from H, CH2═CH—CH2—, and phenyl or alkyl and wherein R3-R7 is H1, C1-C4 alkyl, and quaternary salts thereof. When R7 and X— is absent, the polymer is amphiphilic. When R7 is alkyl and X— is an anion, the polymer is cationic polymer.
    Type: Grant
    Filed: March 13, 2002
    Date of Patent: October 7, 2003
    Inventors: Shiping Zhu, Youqing Shen, Robert Pelton
  • Patent number: 6616981
    Abstract: A cationic, water-soluble polymer is disclosed as a substrate treatment resin (i.e., coating) to improve color-fastness and adhesion of an ink-jet ink printed onto the substrate. More particularly, a 50% solids aqueous solution of a cationic acrylic resin is provided as the printed substrate treatment resin. Also disclosed is a method for preparing the invention resin.
    Type: Grant
    Filed: August 26, 1998
    Date of Patent: September 9, 2003
    Assignee: MeadWestvaco Corporation
    Inventors: G. Frederick Hutter, Michael D. Matzinger
  • Patent number: 6610412
    Abstract: A printing fluid composition with an additive which functions as a compatibilizer between the hydrophilic material coating a media surface and the hydrophobic thermal transfer overcoat (TTO) material used in a clear protective TTO overcoat and a method of using such an printing fluid composition to promote adhesion of such TTO material and a digitally printed medium.
    Type: Grant
    Filed: September 30, 2002
    Date of Patent: August 26, 2003
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: Gary Allan Ungefug
  • Patent number: 6585873
    Abstract: A crosslinked hydrophilic gel in which the crosslinker used in a compound of Formula I or Formula II or combination thereof. These crosslinked hydrophilic gels provide enhanced separation in electrophoresis. The use of the crosslinkers of Formula I and/or II can result in electrophoresis gels having improved properties including: 1) a broader pore size range; 2) control of pore size distribution; 3) greater resistance to hydrolysis in alkaline media; 4) greater clarity of gels prepared with high concentration of the crosslinkers; and 5) improved background silver staining.
    Type: Grant
    Filed: March 22, 2000
    Date of Patent: July 1, 2003
    Assignee: University of Melbourne
    Inventors: David Henry Solomon, Greg GuangHua Qiao, Georgia Patras
  • Patent number: 6573348
    Abstract: A curable resin composition containing (A) an aromatic diallyl compound, (B) an acid derivative or an aliphatic group-containing compound having at least 4 (meth)acryl groups in one molecule, (C) divinylbenzene, and (D) a polythiol compound having at least two mercapto groups in one molecule provides an optical material having a desirable refractive index, Abbe number and transparency, and excellent heat resistance.
    Type: Grant
    Filed: April 11, 2001
    Date of Patent: June 3, 2003
    Assignee: Daiso Co. LTD
    Inventors: Katsutoshi Yokoyama, Kazuya Tsujimura
  • Patent number: 6566466
    Abstract: A method is provided for the production of a graft copolymer or acrylate polymer blend in the presence of at least one liquid diluent comprising the steps of (1) providing a reaction mixture of at least one A monomer consisting of a monomeric (meth)acrylic acid ester of a non-tertiary alcohol in admixture with at least one liquid diluent which is non-reactive under conditions of free radical polymerization employed, optionally at least one B monomer different from said A monomer, optionally at least one polymeric graft moiety C having a Tg greater than 20° C.
    Type: Grant
    Filed: July 18, 2002
    Date of Patent: May 20, 2003
    Assignee: Adhesives Research, Inc.
    Inventor: Michael J. Zajaczkowski
  • Patent number: 6559259
    Abstract: A water-soluble, crosslinkable protective colloid is provided having a molecular weight of least than 500,000 comprising: a) 20 to 959 by weight of monomer units containing sulphonic acid or sulphonate groups, b) 4 to 800 by weight of monomer units containing N-methylol or N-alkoxymethyl groups, and c) 0.1 to 20% by weight of hydrophobic monomer units such as water insoluble ethylenically unsaturated compounds and the hydrophobic end groups of initiator radicals or regulator molecules. Optionally, up to 50% by weight of the monomer units containing sulphonic acid or sulphonate groups can be replaced by monomer units containing carboxyl groups or monomer units containing amide groups.
    Type: Grant
    Filed: August 27, 2001
    Date of Patent: May 6, 2003
    Assignee: Wacker-Chemie GmbH
    Inventors: Klaus Kohlhammer, Gerhard Koegler, Monika Rockinger, Walter Dobler
  • Publication number: 20030083449
    Abstract: Homopolymers suitable for storage of information provided optically are disclosed.
    Type: Application
    Filed: July 3, 2002
    Publication date: May 1, 2003
    Inventors: Horst Berneth, Uwe Claussen, Serguei Kostromine, Ralf Neigl, Hans-Joachim Vedder
  • Patent number: 6548605
    Abstract: An aqueous emulsion composition that has high adhesion strength for a variety of materials so that it can be used for the adhesive bonding of even molded products and an adherent composition containing the aqueous emulsion composition. The aqueous emulsion composition comprises a carboxyl modified resin of a saponified ethylene-vinyl acetate copolymer and a surface active agent. This aqueous emulsion composition can be suitably used as adherent composition, such as an primer and an adhesive, for adhesive bonding a variety of molded products, such as plastic films, plastic sheets, plastic foams, fibers, synthetic leathers and metals. Due to the aqueous composition, the composition can have little risk to catch fire and can provide good sanitation in the environment.
    Type: Grant
    Filed: November 28, 2000
    Date of Patent: April 15, 2003
    Assignee: Mitsui Takeda Chemicals Inc.
    Inventors: Hirofumi Morita, Susumu Okatani