Polymer Derived From Acrylic Or Methacrylic Acids, Acid Halides Or Salt Monomers Patents (Class 525/329.7)
  • Publication number: 20100062252
    Abstract: An object of the present invention is to provide a water absorbing agent having a low amount of residual monomer, small variance of the amount of residual monomer among ranges of particle size distribution and favorable absorption properties, and being sanitary; an absorbing article; and a method for the production of a water absorbing agent. The water absorbing agent of the present invention has the amount of residual monomer of not higher than 500 ppm, and a residual monomer index of not greater than 0.30.
    Type: Application
    Filed: February 10, 2006
    Publication date: March 11, 2010
    Applicant: NIPPON SHOKUBAI CO., LTD
    Inventors: Kazuki Kimura, Shin-ichi Fujino, Katsuyuki Wada, Kunihiko Ishizaki
  • Patent number: 7662480
    Abstract: A butyl rubber ionomer having improved adhesion to substrates whose surfaces have polar functional groups. Examples of such substrate materials include stainless steel, glass, mylar or Teflon®. The adhesion of the butyl rubber ionomer to the substrate is at least 25% greater than the adhesion of a non-ionomeric butyl rubber to the same substrate surface and with certain substrates is more than 150% greater. The adhesion is improved with increasing levels of multiolefin content in the butyl rubber ionomer. The adhesion is greatest for butyl rubber ionomers having a high multiolefin content (at least 3.5 mol% of multiolefin monomers or at least 1.5 mol % of residual multiolefins). By taking advantage of these high adhesion levels, a composite article can be formed between the butyl rubber ionomer and the substrate.
    Type: Grant
    Filed: February 22, 2007
    Date of Patent: February 16, 2010
    Assignee: Lanxess, Inc.
    Inventors: Rui Resendes, Rayner Krista, Janice Nicole Hickey
  • Publication number: 20100036060
    Abstract: Ion-conducting (co)polymer media and ion-conducting oligomer media close in ion conductivity to organic-solvent-based electrolytes can be produced easily and safely on industrial scale. These ion-conducting (co)polymer media use (co)polymers containing at least one cyclocarbonato group, and these ion-conducting oligomer media employ oligomers containing at least two cyclocarbonato groups.
    Type: Application
    Filed: October 14, 2009
    Publication date: February 11, 2010
    Applicant: Dainichiseika Color & Chemicals Mfg. Co., Ltd.
    Inventors: Michiei Nakamura, Sachio Yoshikawa, Minoru Takizawa, Toshiyasu Fujita, Seiji Doi, Nobuhiro Kihara
  • Publication number: 20100010166
    Abstract: Silane-terminated prepolymers which contain, on at least one silicon atom, at least one hydrolyzable aryloxy type functional group. The use of these prepolymers, containing silyl-aryloxy terminated groups, in adhesive sealant formulations increases their reactivity so enabling the use of metal-based catalysts, which are in most cases toxic and act as oxidation catalysts, to be avoided or their quantity to be reduced compared with the standard quantity used in conventional formulations, yet ensuring considerably shorter cross-linking times than those of formulations based on known silane-terminated prepolymers.
    Type: Application
    Filed: September 14, 2007
    Publication date: January 14, 2010
    Applicant: N.P.T. S.R.L.
    Inventors: Alessandro Galbiati, Paolo Galbiati
  • Patent number: 7642042
    Abstract: A polymer, a top coating layer, a top coating composition and an immersion lithography process using the same are disclosed. The top coating layer polymer may include a deuterated carboxyl group having a desired acidity such that the top coating layer polymer may be insoluble with water and a photoresist, and soluble in a developer. The polymer may be included in a top coating layer and a top coating composition.
    Type: Grant
    Filed: October 24, 2006
    Date of Patent: January 5, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Mitsuhiro Hata, Sang-Jun Choi, Sang-Gyun Woo, Man-Hyoung Ryoo
  • Patent number: 7637961
    Abstract: An oligomeric composition containing oligomers and at least one stabilizing component is provided. An aqueous dispersion composition containing the oligomeric composition is useful for treating tanned leather to provide leather with increased softness or strength. Also provided are a method of treating tanned leather using the composition and an article containing the treated leather.
    Type: Grant
    Filed: February 21, 2003
    Date of Patent: December 29, 2009
    Assignee: Rohm and Haas Company
    Inventors: Anton Georges El A'mma, Shang-Jaw Chiou, Robert Francis Dougherty
  • Publication number: 20090318622
    Abstract: The invention concerns methods for grafting bioactive polymers on a prosthetic material, the materials obtainable by said method and applications thereof. More specifically, the invention concerns a method for directly grafting polymers on the surface of prosthetic materials.
    Type: Application
    Filed: June 7, 2007
    Publication date: December 24, 2009
    Inventors: Véronique Migonney, Gérard Helary, Flavie Noirclere
  • Patent number: 7615579
    Abstract: The invention relates to a superabsorbent polymer wherein an increased rate of water absorption is obtained by the addition of an encapsulated blowing agent. The invention relates to a superabsorbent polymer including an encapsulating blowing agent and having a vortex time of 40 seconds or less. In particular, the superabsorbent polymer includes from about 55 to about 99.9 wt. % of polymerizable unsaturated acid group containing monomers; from about 0.001 to about 5.0 wt. % of internal crosslinking agent; wherein the wherein the composition has a degree of neutralization of more than about 20%; and from about 0.05 to about 10.0 wt. % of an encapsulated blowing agent.
    Type: Grant
    Filed: December 14, 2006
    Date of Patent: November 10, 2009
    Assignee: Evonik Stockhausen, Inc.
    Inventors: Mark C. Joy, Whei-Neen Hsu
  • Patent number: 7608663
    Abstract: The invention provides methods for preparing polymers bearing a terminal propionic acid. The method involves first reacting a water soluble and non-peptidic polymer comprising at least one hydroxyl group with a tertiary alkyl acrylate in the presence of a catalyst to form a propionic acid ester of the polymer, wherein the polymer has a weight average molecular weight of at least about 10,000 Da; and then treating the propionic acid ester of the polymer with a strong acid to form a propionic acid of the polymer.
    Type: Grant
    Filed: January 21, 2005
    Date of Patent: October 27, 2009
    Assignee: Nektar Therapeutics
    Inventors: Antoni Kozlowski, Samuel P. McManus
  • Patent number: 7598321
    Abstract: Disclosed is a composition which comprises or consists essentially of a high melt index ethylene acid copolymer comprising monomer units derived from ethylene, an alkyl (meth)acrylate, a (meth)acrylic acid, and an optional comonomer. Also disclosed is a composition comprising the ethylene acid copolymer crosslinked with a polyamine, a polyvalent metal salt, or combinations thereof. Also disclosed is a solution of the ethylene acid copolymer which can be used for solutions application to substrates.
    Type: Grant
    Filed: August 2, 2006
    Date of Patent: October 6, 2009
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Charles J. Talkowski
  • Patent number: 7598303
    Abstract: A process for making an aqueous dispersion is provided. More specifically, a process for making an aqueous dispersion having at least two polymeric components is provided.
    Type: Grant
    Filed: January 24, 2006
    Date of Patent: October 6, 2009
    Assignee: Rohm and Haas Company
    Inventor: Willie Lau
  • Patent number: 7595361
    Abstract: The present invention relates to adhesive polymer composites containing at least one nitrile rubber polymer having a Mooney viscosity (ML 1+4 @ 100° C.) below 30, optionally at least one filler and optionally at least one cross-linking agent, a process for preparing the polymer composite wherein at least one nitrile rubber polymer having a Mooney viscosity (ML 1+4 @ 100° C.) below 30, optionally at least one filler and optionally at least one cross-linking agent are mixed and a self-supporting shaped article containing the compound optionally layered on or interposed between one or more supporting means. The present invention also relates to a tape containing the adhesive polymer composite optionally layered on or interposed between one or more supporting means. Further, the present invention relates to a sealant composition containing the adhesive polymer composite.
    Type: Grant
    Filed: December 3, 2003
    Date of Patent: September 29, 2009
    Assignee: Lanxess Inc.
    Inventors: Frederic Guerin, Sharon X. Guo
  • Patent number: 7588777
    Abstract: The present invention relates to superabsorbent polymer particles with improved surface cross-linking and their use in absorbent articles. The superabsorbent polymer particles of the present invention comprise polymer chain segments, wherein at least a part of the polymer chain segments are covalently cross-linked to each other and wherein at least a part of the cross-links comprise the reaction product of cross-linking molecules having at least two C?C double bonds and further comprise the reaction product of radical former molecules. These cross-links are present at surfaces of the superabsorbent polymer particles. Moreover, the invention relates a method for making these superabsorbent polymer particles.
    Type: Grant
    Filed: July 18, 2005
    Date of Patent: September 15, 2009
    Assignee: The Procter & Gamble Company
    Inventors: Andreas Flohr, Torsten Lindner
  • Patent number: 7576160
    Abstract: An electrodepositable coating composition comprising a cationic acrylic resin derived from an epoxy function acrylic resin and an IPDI trimer and coated substrates having improved sweat resistance are disclosed. Methods for using the coatings are also disclosed.
    Type: Grant
    Filed: May 6, 2005
    Date of Patent: August 18, 2009
    Assignee: PPG Industries Ohio, Inc.
    Inventors: David R. Fenn, Mark L. Follet, Anthony D. Kulfan, Jean-Pierre Marthe, Fabrice Leusiere
  • Patent number: 7572863
    Abstract: The present invention relates to the development of hydrophobically modified polymers [HMPs], which have emerged as promising materials in diverse fields such as paints, cosmetics, oils, food and textiles. They are used as thickeners in these applications. In our study, the hydrophobic modification on PAA was performed using hydrophobic compounds obtained from naturally occurring materials such as Cashew Nut Shell Liquid, [CNSL]. The DCCI coupling method was chosen for the hydrophobic modification of PAA. A series of hydrophobically modified PAAs were synthesized with different degrees of hydrophobic contents and were characterized by solution rheology.
    Type: Grant
    Filed: September 6, 2005
    Date of Patent: August 11, 2009
    Assignees: Countil of Scientific and Industrial Research, Ecole Superieur de Physique et Chimie Industrielles de la Ville de Paris (ESPCI)
    Inventors: Manohar Virupax Badiger, Prakash Purushot Wadgaonkar, Ashish Kishori Lele, Aarti Subhash Shedge, Dominque Hourdet, Patrick Perrin, Christophe Chassenieux
  • Patent number: 7563831
    Abstract: A method for curing a chemical composition, the composition containing at least one or more binders having ethylenically unsaturated groups, as well as one or more initiators for triggering a radical polymerization. The method includes a thermal curing step, in which the curing of the composition is effected by a radical polymerization of the binder, which is triggered by a thermal initiator and is carried out under protective gas. Paint films having improved mechanical properties can be produced using the method according to the present invention.
    Type: Grant
    Filed: December 23, 2005
    Date of Patent: July 21, 2009
    Assignee: Daimler AG
    Inventors: Markus Bischof, Elisabeth Gemmler, Fritz Mezger, Thomas Raith, Christoph Ruechardt
  • Patent number: 7557166
    Abstract: A gel-type polymer electrolyte, wherein said polymer comprises (A) an ethylene-unsaturated carboxylic acid copolymer or a derivative thereof and (B) a polyalkylene oxide having a hydroxyl group at one terminal thereof or a derivative thereof, which are bonded together by an ester bond. The gel-type polymer electrolyte has a high ionic conductivity, and makes it possible to provides a cell which has excellent charge/discharge characteristics at low temperatures as well as at high temperatures.
    Type: Grant
    Filed: October 18, 2001
    Date of Patent: July 7, 2009
    Assignees: Du Pont-Mitsui Polychemicals Co. Ltd
    Inventors: Noboru Oyama, Yuki Fujimoto, Yoshiyuki Iwase, Kouichi Nishijima
  • Publication number: 20090163365
    Abstract: The present invention relates to a water-swellable material comprising an inherently crosslinked polymer matrix and inorganic solid particles bound therein with a time-dependent swelling behavior that corresponds to a water uptake of at least 7.5 times the inherent weight of the hybrid material within one hour, as well as the applications thereof. The present invention further relates to a method for manufacture of such a water-swellable hybrid material.
    Type: Application
    Filed: April 4, 2006
    Publication date: June 25, 2009
    Inventors: Wulf Bentlage, Reinmar Peppmoller, Jürgen Kunstmann, Oliver Zindel
  • Patent number: 7541409
    Abstract: Hydrophobically modified polymers containing vinylamine or ethylenimine units and obtainable by reacting (a) polymers containing vinylamine or ethylenimine units with (b) compounds of the formula R-A-(EO, PO, BuO)n—X??(I), where R is C4- to C26-alkyl or C4- to C26-alkenyl, A is O, NH or COO, EO is an ethylene oxide unit, PO is a propylene oxide unit, BuO is a butylene oxide unit, n is from 1 to 250 and X is a functional group which can be covalently bonded to an OH group, process for the preparation of hydrophobically modified polymers containing vinylamine or ethylenimine units by reacting polymers containing vinylamine or ethylenimine units with a water repellent of the formula I and use of the polymers thus obtainable as an additive to paperstock in papermaking.
    Type: Grant
    Filed: May 19, 2003
    Date of Patent: June 2, 2009
    Assignee: BASF Aktiengesellschaft
    Inventors: Guenther Grimm, Volker Braig, Simon Champ, Norbert Mahr
  • Publication number: 20090137745
    Abstract: Disclosed are soft, high refractive index, acrylic materials. These materials, especially useful as intraocular lens materials, contain one or more aryl acrylic hydrophobic monomers as principal device-forming monomers and a tack-reducing macromer additive. In addition to their use as intraocular lens materials, the present materials are also suitable for use in other ophthalmic or otorhinolaryngological devices, such as contact lenses, keratoprostheses, corneal inlays or rings; otological ventilation tubes and nasal implants.
    Type: Application
    Filed: January 23, 2009
    Publication date: May 28, 2009
    Applicant: Alcon,Inc.
    Inventors: Diana M. Cordova, Mutlu Karakelle, Chance Lehman, Douglas C. Schlueter, Joseph I. Weinschenk, III
  • Patent number: 7534837
    Abstract: The invention discloses a composition consisting essentially of an E/X/M random copolymer wherein X is from 0.1 to 20 mol % of the E/X/M copolymer and is a 4-vinylphenyl ester, preferably 4-acetoxystyrene; M is from 0 to 40 mol % of the E/X/M copolymer and is one or more ethylenically unsaturated monomers; and E is ethylene. The invention further encompasses a high pressure radical polymerization process for providing the novel polymers; and a base catalyzed transesterification process for conversion of the E/X/M copolymer to an E/Y/M copolymer wherein Y is derived from 4-hydroxystyrene. Another embodiment of the invention is a composition consisting essentially of an E/Y/M random copolymer wherein Y is greater than 1.0 to about 20 mol % of the E/Y/M copolymer and is 4-hydroxystyrene; M is from 0 to 40 mol % of the E/Y/M copolymer and is one or more ethylenically unsaturated monomers; and E is ethylene.
    Type: Grant
    Filed: September 26, 2005
    Date of Patent: May 19, 2009
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Michael Thomas Sheehan, Mark E. Wagman
  • Publication number: 20090123689
    Abstract: A carpet cushion has attached thereto or thereon a layer of polymer composition comprising, consisting essentially of, consisting of, or produced from a fatty acid-modified ionomer and optionally blended or coextruded with an ethylene-containing polymer wherein the ionomer comprises, consists essentially of, consists of, or is produced from an ethylene copolymer and a fatty acid.
    Type: Application
    Filed: November 7, 2008
    Publication date: May 14, 2009
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Donna Lynn Visioli, Gregory E. Hindman
  • Publication number: 20090099311
    Abstract: A polyacrylic polymer is provided that is formed by moisture cure of multiple acrylic prepolymer segments. The prepolymer segments each have an average molecular weight of between 5000 and 400,000 grams per mole. Each of the prepolymers is a homopolymer or copolymer of a monomer from among methyl methacrylate, C1-C16 alkyl acrylate, and C1-C16 alkyl methyl methacrylate as the predominant monomeric group. The prepolymers are interconnected through moisture cure induced urea, urethane, or combinations thereof. The polymer is readily cured upon exposure to atmospheric moisture absent inclusion or evolution of a volatile organic compound. The polymer is likewise formed HAP free. Through control of prepolymer properties a variety of thermoset polymer properties are obtained. A prepolymer is formed including a minority amount of functionalized acrylic monomer that is isocyanate or converted to isocyanate through subsequent reaction.
    Type: Application
    Filed: September 18, 2008
    Publication date: April 16, 2009
    Inventors: Yuduo Zhu, Ty Dennis Harvey
  • Publication number: 20090068480
    Abstract: The invention relates to a method and coating agents used in the method which provide good adherence to and good corrosion protection of metal substrates; the coating coating agents are cross-linkable via radical polymerization. Adhesion promoting compounds are present in the conversion layer in a quantity of about 0.01 to 40 weight percent and contain, on average, one reactive unsaturated group and at least one H-active group per molecule.
    Type: Application
    Filed: November 7, 2008
    Publication date: March 12, 2009
    Applicant: HENKEL AG & CO. KGaA
    Inventors: Matthias Koch, Kerstin Motzkat
  • Patent number: 7491772
    Abstract: The purpose of the invention is to obtain a water-dispersible adhesive composition capable of coating in an aqueous system and, particularly, an adhesive composition capable of preparing a removable water-dispersible acrylic adhesive sheet with less contamination to the surface of an adherend and having high resistance to water intrusion during wafer polishing, which is particularly suitable as an adhesive sheet for use in semiconductor wafer processing. The invention relates to a water-dispersible acrylic adhesive composition, which includes an acryl emulsion polymer obtainable by an emulsion polymerization of a monomer mixture containing an alkyl (meth)acrylate ester; and a crosslinker which is a carbodiimide crosslinker or a hydrazine crosslinker, in which the acryl emulsion polymer has a glass transition temperature of from ?80 to ?20° C.
    Type: Grant
    Filed: December 22, 2006
    Date of Patent: February 17, 2009
    Assignee: Nitto Denko Corporation
    Inventors: Katsuhiko Kamiya, Tomonari Naito, Satomi Yoshie
  • Patent number: 7476712
    Abstract: The invention is directed to a film which comprises a poly(carboxylic acid) polymer and a polyvalent metal compound, which is endowed with excellent gas barrier property against, for example oxygen, which has such resistance that the appearance, shape, and gas-barrier properties are not impaired by neutral water, high-temperature water vapor, or hot water; a laminate produced by use of the film; and a process for producing the film or laminate industrially conveniently at low cost. The film or laminate of the present invention is suitable for use as a package, packaging container, or vacuum insulation material for articles which are apt to be deteriorated by oxygen, etc., such as foods, beverages, chemicals, medicines, and metallic precision parts; e.g., electronic parts.
    Type: Grant
    Filed: April 23, 2003
    Date of Patent: January 13, 2009
    Assignee: Kureha Corporation
    Inventors: Hideaki Tanaka, Hiroyuki Oba, Masahiro Yamazaki, Tomohisa Hasegawa
  • Patent number: 7470738
    Abstract: A non-aqueous absorbent comprising a crosslinked polymer which contains a structural unit having a carboxyl group and/or a sulfonate group in an amount of 20 to 100% weight in its molecule and in which from 30 to 100% by mol of the protons in the carboxyl group and/or the sulfonate group have been substituted by onium cations; a non-aqueous gel made of this non-aqueous absorbent and an organic solvent; and a non-aqueous absorbent sheet and a non-aqueous absorbent agent containing the non-aqueous absorbent.
    Type: Grant
    Filed: December 24, 2002
    Date of Patent: December 30, 2008
    Assignee: Sanyo Chemical Industries, Ltd.
    Inventors: Takashi Sumiya, Kazuya Ohtani, Takeaki Yamaguchi, Youji Fujiura
  • Publication number: 20080318072
    Abstract: To realize an imide resin which is favorable in optical use. The imide resin according to the present invention includes: a repeating unit represented by General Formula (1); a repeating unit represented by General Formula (2); and a repeating unit represented by General Formula (3), wherein an orientation birefringence of the imide resin ranges from ?0.1×10?3 to 0.
    Type: Application
    Filed: December 1, 2004
    Publication date: December 25, 2008
    Applicant: Kaneka Corporation
    Inventors: Hirosuke Kawabata, Tomoki Hiiro, Yasuhiro Sekiguchi, Kazuhito Wada, Kimihide Nishimura, Norito Doi
  • Patent number: 7468414
    Abstract: To provide moisture absorptive and desorptive ultrafine particles having high moisture absorptive and moisture desorptive properties and particularly having an excellent moisture absorptive rate and also a product using said ultrafine particles. Moisture absorptive and desorptive ultrafine particles, characterized in that, the said particles consist of a cross-linked polymer containing 1.0 to 10.0 meq/g of a salt-type carboxyl group as a polar group where an average primary particle size is not more than 0.2 ?m and saturated moisture absorptive ratios at 65% RH and 90% RH at 20° C. are not less than 20% by weight and not less than 40% by weight, respectively.
    Type: Grant
    Filed: November 18, 2004
    Date of Patent: December 23, 2008
    Assignee: Japan Exlan Company Limited
    Inventor: Ryosuke Nishida
  • Patent number: 7442213
    Abstract: The present invention relates to stable polymer systems comprising anionic and modified polyamine polymers. When such polymer systems are employed in cleaning compositions, such cleaning compositions exhibit unexpectedly improved anti-soil re-deposition and situs whitening capabilities.
    Type: Grant
    Filed: November 27, 2006
    Date of Patent: October 28, 2008
    Assignee: The Procter & Gamble Company
    Inventors: Rafael Ortiz, Jeffrey John Scheibel, Eugene Steven Sadlowski, Veronique Sylvie Metrot
  • Patent number: 7439308
    Abstract: A method for producing a (meth)acrylic polymer having crosslinkable silyl groups at the termini, comprising a step of adding a hydrosilane compound having a crosslinkable silyl group to an alkenyl-terminated (meth)acrylic polymer (A), which is prepared by atom transfer radical polymerization, in the presence of a platinum hydrosilylation catalyst. The amount of the platinum hydrosilylation catalyst is 0.1 to 10 mg on a platinum metal basis per kilogram of the alkenyl-terminated (meth)acrylic polymer (A). An object of the invention is to provide a method for producing a (meth)acrylic polymer having terminal crosslinkable silyl.
    Type: Grant
    Filed: April 18, 2003
    Date of Patent: October 21, 2008
    Assignee: Kaneka Corporation
    Inventors: Shigeki Ohno, Yoshiki Nakagawa, Kenichi Kitano, Masanao Takeda, Nao Fujita
  • Patent number: 7439309
    Abstract: Disclosed is a silver halide photographic light-sensitive material, which has at least one polymer compound having a nitrogen-containing aromatic ring having a mercapto group represented by the formula Z-SH wherein Z represents a nitrogen-containing aromatic ring as a partial structure. This silver halide photographic light-sensitive material can stably contain silver halide grains of a high aspect ratio showing high sensitivity and superior planarity, shows superior pressure resistance and can be stably prepared.
    Type: Grant
    Filed: March 22, 2005
    Date of Patent: October 21, 2008
    Assignee: Fujifilm Corporation
    Inventors: Terukazu Yanagi, Makiko Yokoi, Mamoru Sakurazawa, Yoshihisa Tsukada, Seiji Hatano
  • Patent number: 7427650
    Abstract: A process for producing an absorbing polymer structure (Pa) including the steps of obtaining a treated absorbing polymer structure (Pb) by increasing the absorption under load at a load of 0.3 or 0.9 psi (AUL) compared to an untreated absorbing polymer structure (Pu) by a first treatment of an outer region of the untreated absorbing polymer structure (Pu) and reducing the AUL compared to the treated polymer structure (Pb) by a second treatment of an outer region of the treated absorbing polymer structure (Pb). Such absorbing polymer structure (Pa) may be used in a composite and may be used in foams, moulded articles, fibers, sheets, films, cables, sealing materials, liquid-absorbing hygiene articles, carriers for plant growth-regulating and fungal growth-regulating agents, packaging materials and soil additives or building materials.
    Type: Grant
    Filed: June 21, 2007
    Date of Patent: September 23, 2008
    Assignee: Stockhausen GmbH
    Inventors: Scott Smith, Bernfried Messner, Markus Frank
  • Patent number: 7425596
    Abstract: The use of block copolymers which were prepared by polymerization of a poly(alkylene oxide) compound (A) with at least one ethylenically unsaturated monomer compound (B), as dispersants for aqueous suspensions of solids, in particular based on hydraulic binders, such as, for example, cement, lime, gypsum or anhydrite, is described. Surprisingly, these block copolymers have a substantially better water-reducing power at the same dose in comparison with conventional superplasticizers based on comb polymers. Moreover, the slump loss can also be reduced in comparison with conventional superplasticizers by modification of the adhesive block.
    Type: Grant
    Filed: August 13, 2003
    Date of Patent: September 16, 2008
    Assignees: Goldschmidt GmbH, Construction Research & Technology GmbH
    Inventors: Alexander Kraus, Christian Hübsch, Gerhard Albrecht, Harald Grassl, Angelika Hartl, Stefanie Scheul, Alfred Kern
  • Publication number: 20080221224
    Abstract: Macromolecules may be specially designed so that upon adsorption at a substrate, the macromolecules experience intramolecular tension at their covalent bonds due to the physical interaction of the molecular segments of the macromolecules with the substrate. As a result of the induced tension, the macromolecules may be used in a number of applications including, but not limited to, environmental and surface sensors, chemical activators and catalysts, and molecular probes.
    Type: Application
    Filed: March 6, 2007
    Publication date: September 11, 2008
    Inventor: Sergei S. Sheiko
  • Publication number: 20080214742
    Abstract: The present invention has its object to provide a process for producing a vinyl polymer which can provide a vinyl polymer in such form that a polymerization catalyst is effectively removed from that. The present invention relates to a process for producing a vinyl polymer wherein a vinyl polymer at the time of completion of the polymerization is treated with oxygen in the presence of a polar solvent. More preferably, the present invention relates to a process for bringing a polymer added with a polar solvent having a relative dielectric constant at 20° C. of not lower than 10 into contact with mixed gases of oxygen and an inert gas such as nitrogen with an oxygen concentration below the explosion limit oxygen concentration of this solvent as in the state of occurrence as a pure component.
    Type: Application
    Filed: March 3, 2006
    Publication date: September 4, 2008
    Applicant: KANEKA CORPORATION
    Inventors: Yousuke Asai, Nao Fujita
  • Patent number: 7420018
    Abstract: The present invention provides: a water-absorbing agent which has excellent urine resistance; a water-absorbing agent which has not only excellent urine resistance, but also excellent absorption properties that are stable to any composition of urine and show little change with time; and production processes and uses for these water-absorbing agents. The present invention water-absorbing agent exhibits a specific or larger value of absorption capacity under a load in a process in which the absorption capacity under a load is measured in a new manner using a specific liquid to be absorbed, and the present invention provides an absorbent matter and an absorbent article which display a specific or larger value of new absorption index as is, for example, led from the absorption capacity under a load or from the resin concentration using the above water-absorbing agent. The present invention further provides a production process for a water-absorbing agent having the above specific parameter.
    Type: Grant
    Filed: July 9, 2005
    Date of Patent: September 2, 2008
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Katsuyuki Wada, Hiroko Ueda, Naoko Takahashi, Kinya Nagasuna, Koji Miyake, Yasuhiro Fujita, Takumi Hatsuda
  • Patent number: 7402632
    Abstract: Method for increasing the molecular weight of polyacrylates, in which polyacrylates, functionalized at least in part of their chain ends by functional groups X, are reacted with a compound having at least functional groups Y capable of linking reactions with functional groups X.
    Type: Grant
    Filed: November 22, 2002
    Date of Patent: July 22, 2008
    Assignee: tesa Aktiengesellschaft
    Inventors: Marc Husemann, Stephan Zöllner
  • Patent number: 7385007
    Abstract: The present invention provides a pressure sensitive adhesive composition for optical members, which is excellent in durability, re-releasability and stress relaxation, as well as a pressure sensitive adhesive composition for optical members, which hardly increases adhesion after storage for a long time and does not leave a residual adhesive on glass upon disposal or repair. The pressure sensitive adhesive composition for optical members according to the present invention comprises 100 parts by weight of an acrylic polymer (A) having a weight-average molecular weight of 500,000 or more, containing at least 50 wt % alkyl (meth)acrylate having an alkyl group with 5 or more carbon atoms and 0.2 to 2 wt % unsaturated carboxylic acid as the monomer unit, 0.
    Type: Grant
    Filed: August 6, 2004
    Date of Patent: June 10, 2008
    Assignee: Nitto Denko Corporation
    Inventors: Yutaka Moroishi, Fumiko Nakano, Tetsuo Inoue, Yoshihide Kawaguchi, Kohei Yano
  • Publication number: 20080097037
    Abstract: The present invention relates to a monolithic organic copolymer prepared by copolymerization of at least one monomer of the group consisting of styrene, (C1-C3)alkylstyrene, (meth)acrylic acid and esters thereof with a crosslinker in the presence of a macroporogen and a microporogen, wherein a) the sum of said at least one monomer of the group and the crosslinker is 10-20%, preferably 10-15%, by volume of the reaction mixture, with the rest being essentially macroporogen and microporogen, and the degree of said copolymerization is at least 70%, preferably at least 90%, more preferably at least 99%, or b) the sum of said at least one monomer of the group and the crosslinker is 30-50%, preferably 35-45%, by volume of the reaction mixture, with the rest being essentially macroporogen and microporogen, and the degree of said copolymerization is in the range of 25-60%, preferably 35-50%.
    Type: Application
    Filed: October 19, 2006
    Publication date: April 24, 2008
    Applicant: LEOPOLD-FRANZENS-UNIVERSITAT INNSBRUCK
    Inventors: Lukas TROJER, Gunther BONN
  • Patent number: 7361712
    Abstract: A water absorbing agent comprising a crosslinked polymer including a water-soluble vinyl monomer (a1) and/or a vinyl monomer (a2) that is formed into the water-soluble vinyl monomer (a1) by hydrolysis, and a crosslinking agent (b) as an essential constituting unit, wherein the following formulae (1) and (2) are satisfied; a process for its production, and absorbers and absorbent articles made by the water absorbing agent. (Y)??1.14(X)+69.5 ??(1) (X)=((x1)2+4×(x2)2)1/2 ??(2) wherein (x1) denotes a water-retention amount (g/g) of the water absorbing agent after being soaked in a physiological saline for one hour; (x2) denotes an absorption amount (g/g) of the water absorbing agent after being soaked in a physiological saline under loading of 0.9 psi for one hour; and (Y) denotes a liquid permeation speed (ml/min) of a physiological saline after the water absorbing agent is soaked in a physiological saline under loading of 0.3 psi for one hour.
    Type: Grant
    Filed: November 18, 2002
    Date of Patent: April 22, 2008
    Assignee: San-Dia Polymers, Ltd.
    Inventors: Munekazu Satake, Yoshihisa Ohta
  • Patent number: 7361713
    Abstract: This invention is directed to an improvement in acrylic based adhesives that are particularly suited for use in the application of paper and plastic labels onto glass surfaces, such as in bottle labeling. The base adhesive is comprised of an emulsion polymerized acrylic copolymer having acid functionality, e.g., carboxyl or sulfonic acid functionality; wherein the emulsion polymerization is carried out in the presence of a stabilizer system comprising a polymer containing polymerized units of carboxylic acid. The improvement for enhancing the blush resistance of the adhesive resides in incorporating a long chain crosslinking polyamine or polyamide containing residual amines.
    Type: Grant
    Filed: December 20, 2004
    Date of Patent: April 22, 2008
    Assignee: Air Products and Chemicals, Inc.
    Inventors: David William Horwat, Richard Patrick Szuchyt
  • Patent number: 7347330
    Abstract: A method for sizing a surface cross-linked water-absorbent resin removed coarse particles and fine powder is provided. Sized resin particles are obtained by classifying water-absorbent resin particles to remove an aggregates and fine powder in the particles, disintegrating the obtained aggregates and classifying the products of the disintegration to remove coarse particles and fine powder contained in the products.
    Type: Grant
    Filed: May 27, 2004
    Date of Patent: March 25, 2008
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Yorimichi Dairoku, Kozo Nogi, Koji Miyake
  • Publication number: 20080045665
    Abstract: A thermoplastic elastomer obtained by reacting an elastomeric polymer containing a cyclic acid anhydride group in its side chain and a polyamine compound having two or more primary amino groups, and a thermoplastic elastomer composition containing the thermoplastic elastomer are provided. The thermoplastic elastomer exhibits excellent physical properties such as mechanical strength and in particular tensile strength while retaining its excellent recyclability.
    Type: Application
    Filed: April 26, 2007
    Publication date: February 21, 2008
    Applicant: The Yokohama Rubber Co., Ltd.
    Inventor: Keisuke Chino
  • Patent number: 7332459
    Abstract: A method of inhibiting scale formation in a subterranean formation comprising: (a) injecting a suspension comprising particles of a controlled release scale inhibitor suspended in an aqueous medium into a formation through an injection well wherein the particles have a mean diameter of less than 10 microns, preferably less than 5 microns, more preferably less than 1 micron; (b) allowing the suspension to percolate through the subterranean formation towards a production well; and (c) controllably releasing the scale inhibitor from the particles in the near well bore region of the production well. Suitably, the particles of the controlled release scale inhibitor comprise an esterifiable scale inhibitor cross-linked with a polyol via ester cross-links.
    Type: Grant
    Filed: May 15, 2003
    Date of Patent: February 19, 2008
    Assignee: BP Exploration Operating Company Limited
    Inventors: Ian Ralph Collins, Simon Neil Duncum
  • Publication number: 20080026334
    Abstract: A photo-curable composition comprising a polymer or copolymer and a (meth)acrylate type monomer with more than one (meth)acrylate group per monomer molecule and two or more ethyleneoxy groups per (meth)acrylate group in said monomer is particularly suitable for use as a topcoat layer for phosphor or scintillator screens or panels, when said polymer is polymethyl methacrylate or a copolymer thereof.
    Type: Application
    Filed: June 13, 2007
    Publication date: January 31, 2008
    Inventors: Alexander Williamson, Estevan Tioni, Kristof Heylen
  • Publication number: 20080015315
    Abstract: The invention relates to novel crosslinkable copolymers which are obtainable by (a) copolymerizing at least two different hydrophilic monomers selected from the group consisting of N,N-dimethyl acrylamide (DMA), 2-hydroxyethyl acrylate (HEA), glycidyl methacrylate (GMA), N-vinylpyrrolidone (NVP), acrylic acid (AA) and a C1-C4-alkoxy polyethylene glycol (meth)acrylate having a weight average molecular weight of from 200 to 1500, and at least one crosslinker comprising two or more ethylenically unsaturated double bonds in the presence of a chain transfer agent having a functional group; and (b) reacting one or more functional groups of the resulting copolymer with an organic compound having an ethylenically unsaturated group.
    Type: Application
    Filed: July 10, 2007
    Publication date: January 17, 2008
    Inventors: Frank Chang, Norberto Arturo Medina
  • Publication number: 20070299211
    Abstract: Self-polymerization of mono-aziridine (or azetidine) and multi-aziridine (or azetidine) containing compounds with vinyl group containing organic acid, such as acrylic acid (AA), 2-methylenesuccinic acid, 2,3-dimethylenesuccinic acid and etc, at ambient temperature results in the new type of cross-linked and linear type copolymers, respectively. The polymerization of multi-functional aziridine (or azetidine) containing compounds with vinyl group containing organic acid results in the formation of high cross-linked polymers. The self-polymerization takes place at ambient temperature and the resultants, cross-linked polymeric networked materials, are solvent insoluble and potential for adhesive, composite matrix and other applications. These insoluble materials are hydrolyzed in an acidic or basic condition to form the water soluble ?-amino acids.
    Type: Application
    Filed: July 3, 2006
    Publication date: December 27, 2007
    Applicant: Tamkang University
    Inventors: Po-Cheng Chen, Shih-Chieh Wang, Chia-Yu Huang, Kan-Nan Chen
  • Patent number: 7312278
    Abstract: There is provided: a production process for a water-absorbing agent having stable properties in a short time; and a water-absorbing agent. The production process comprises the step of blending an acid-group-containing water-absorbent resin powder with a noncrosslinkable water-soluble inorganic base and/or an irreducible alkaline-metal-salt pH buffer and further with a dehydratable crosslinking agent reactable with the acid group, thereby subjecting the resin powder to crosslinking treatment, or comprises the step of blending an acid-group-containing water-absorbent resin powder with the above base and/or pH buffer and further with a crosslinking agent reactable with the acid group, thereby subjecting the resin powder to crosslinking treatment, wherein the resin powder has a weight-average particle diameter of 300 to 600 ?m wherein the ratio of fine powders having particle diameters of not larger than 150 ?m in the resin powder is not more than 10 weight %.
    Type: Grant
    Filed: June 7, 2002
    Date of Patent: December 25, 2007
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Yasuhisa Nakashima, Hiroyuki Ikeuchi, Yasuhiro Fujita, Makoto Nagasawa, Shigeru Sakamoto, Yorimichi Dairoku, Katsuyuki Wada, Shinichi Fujino, Toshimasa Kitayama, Kazuhisa Hitomi
  • Patent number: 7312171
    Abstract: A structural material of a polystyrene base and the reaction product of the polystyrene base and a solid phosphate ceramic. The ceramic is applied as a slurry which includes one or more of a metal oxide or a metal hydroxide with a source of phosphate to produce a phosphate ceramic and a poly (acrylic acid or acrylate) or combinations or salts thereof and polystyrene or MgO applied to the polystyrene base and allowed to cure so that the dried aqueous slurry chemically bonds to the polystyrene base. A method is also disclosed of applying the slurry to the polystyrene base.
    Type: Grant
    Filed: August 15, 2005
    Date of Patent: December 25, 2007
    Assignee: Uchicago Argonne, LLC
    Inventors: Arun S. Wagh, Allison L. Antink