Lactam Monomer Patents (Class 526/264)
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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
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Patent number: 7750079Abstract: Compositions, such as lens precursor compositions, and methods for producing lens precursor compositions have been invented. The present methods include forming a premix composition, which can include one or more monomeric components, forming a macromer composition, which includes one or more silicon containing macromers, forming a premix/initiator composition, which can include a photoinitiator, and contacting the premix/initiator composition with the macromer composition to form a polymerizable monomer-containing composition useful in the production of producing silicone hydrogel contact lenses.Type: GrantFiled: August 7, 2006Date of Patent: July 6, 2010Assignee: CooperVision International Holding Company, LPInventors: Sarah L. Almond, John H. D. Browning
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Patent number: 7750090Abstract: The present invention relates to a novel class of water compatible molecularly imprinted polymers (AquaMIPs) capable of selectively binding target molecules such as riboflavin, or analogues thereof, in water or aqueous media, their synthesis and use thereof in food processing and extraction or separation processes.Type: GrantFiled: January 29, 2004Date of Patent: July 6, 2010Assignee: MIP Technologies ABInventors: Börje Sellergren, Panagiotis Manesiotis, Andrew J Hall
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Publication number: 20100104614Abstract: Described here are wound dressings and kits. The wound dressings include povidone compositions that may be directly applied to wound surfaces or provided on substrates to form a composite material. The povidone compositions contain a povidone polymer, where the povidone polymer itself is capable of healing wounds. The povidone compositions may be in particulate form. In other instances, the povidone compositions are formulated as gels, ointments, pastes, films, or other topically applied compositions. Methods for applying the povidone compositions to treat wounds are also described.Type: ApplicationFiled: June 26, 2009Publication date: April 29, 2010Inventor: Bryan T. ORONSKY
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Patent number: 7700702Abstract: High molecular weight associative amphoteric polymers for increasing the viscosity of aqueous solutions, comprise: at lease one cationic monomer derived from acrylamide bearing at least one hydrophobic chain of 8 to 30 carbon atoms; 1 to 99.9 mole % of at least one anionic monomer; and 1 to 99 mole % of one or several non-ionic water-soluble monomers. Aqueous solutions containing said polymers find uses in industry, in particular the oil, paper, water treatment, mining, cosmetics, textile, detergency industries and generally in all industrial techniques using thickened solutions.Type: GrantFiled: March 29, 2005Date of Patent: April 20, 2010Assignee: SNF S.A.S.Inventors: Nicolas Gaillard, Cédrick Favero
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Publication number: 20100068156Abstract: The present invention relates to an ampholytic copolymer based on quaternized nitrogen-containing monomers which has a molar excess of cationogenic/cationic groups compared to anionogenic/anionic groups, to cosmetic or pharmaceutical compositions which comprise at least one such ampholytic copolymer, and to further uses of these copolymers.Type: ApplicationFiled: September 14, 2007Publication date: March 18, 2010Applicant: BASF SEInventor: Son Nguyen Kim
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Publication number: 20100041846Abstract: This invention relates to lactam/vinyl alcohol copolymers, and more specifically, to hydrophobic cross-linkable acetoacetylated lactam/vinyl alcohol copolymers suitable for use in a variety of applications including printing, inks, membranes, coatings, adhesives, oil treatment chemicals (such as gas and kinetic hydrate inhibitors), and fiber/textile treatments.Type: ApplicationFiled: October 2, 2008Publication date: February 18, 2010Applicant: ISP Investment Inc.Inventor: David K. Hood
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Patent number: 7642226Abstract: Generally speaking, the present invention is a water-soluble copolymer film comprising a hydrolyzed copolymer of vinyl acetate and a second monomer, the resultant polyvinyl alcohol copolymer having a degree of hydrolysis, expressed as a percentage of vinyl acetate units converted to vinyl alcohol units, of from about 90% to 100%. The second monomer is preferably selected from the group of monomers having carboxylate functionality or sulfonate functionality. The resulting water-soluble copolymer film is disclosed for use in making pouches to contain a unit dose of liquid detergent, such as a liquid laundry detergent. However, it is an aspect of the copolymer film that film solubility is not significantly affected adversely by the detergent. Such film produces pouches having a greater storage shelf-life over prior art water-soluble film.Type: GrantFiled: March 2, 2006Date of Patent: January 5, 2010Assignee: Monosol, LLCInventors: Andrew P. Verrall, P. Scott Bening, Karen A. Kugler
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Patent number: 7632904Abstract: Hydrophilic, arylsiloxy-containing monomers and macromonomers have at least a terminal hydrophilic group attached to an arylsiloxy group. The aryl groups attached to siloxy groups can be substituted with other hydrophilic groups. Polymers comprising such hydrophilic, arylsiloxy-containing monomers and macromonomers avoid or reduce the risk of forming vacuoles of absorbed water. Furthermore, such polymers have high refractive index, and, thus, are advantageously used for making ophthalmic devices, such as intraocular lenses, contact lenses, corneal rings, corneal inlays, and keratoprostheses.Type: GrantFiled: June 15, 2005Date of Patent: December 15, 2009Assignee: Bausch & Lomb IncorporatedInventors: Joseph C. Salamone, Jay F. Kunzler, Richard M. Ozark
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Patent number: 7629425Abstract: Methods of producing vinyllactam copolymers which include: providing at least one water-soluble N-vinyllactam; providing at least one hydrophobic comonomer; and subjecting the at least one water-soluble N-vinyllactam and the at least one hydrophobic comonomer to free-radical polymerization in an organic solvent in the presence of an initiator, under a combination of process measures selected from the group consisting of A and B; wherein: (A) comprises (i) polymerization under reflux, and at least two of (ii), (iii), (iv), (v), (vi), and (vii), wherein (ii) comprises an addition of at least 5 mol % of N-vinyllactam to the polymerization mixture if at least 70 mol % of the total amount of hydrophobic monomer used have completely reacted, (iii) comprises return of condensate formed in the reflux from below to the polymerization mixture, (iv) comprises introduction of the initiator in the form of a solution in an organic solvent from below into the polymerization mixture, (v) comprises addition of N-vinyllactaType: GrantFiled: November 29, 2007Date of Patent: December 8, 2009Assignee: BASF SEInventors: Rainer Dobrawa, Ralf Widmaier, Klaus Schnell, Karl-Hermann Strube, Jürgen Nieberle, Reinhold Dieing, Bernd de Potzolli, Andreas Gruber, Ulrich Filges, Martin Meister, Josef Neutzner, Wolfgang Bouquet, Eberhard Schupp
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Publication number: 20090274947Abstract: The invention relates to a an electrical energy storage device, such as a capacitor or a secondary battery, utilizing as active element the oxidation and reduction cycle of a sterically hindered imidazolidinone nitroxide radical. Further aspects of the invention are a method for providing such an energy storage device, the use of the respective compounds as active elements in energy storage devices and selected novel imidazolidinone nitroxide compounds.Type: ApplicationFiled: September 3, 2007Publication date: November 5, 2009Inventors: Peter Nesvadba, Lucienne Bugnon, Markus Frey
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Patent number: 7605196Abstract: The invention relates to water-soluble copolymers used as water retention agents, stabilizers and rheology modifiers in aqueous building material systems based on hydraulic binders such as cement, lime, plaster, anhydrite etc. and in water-based paint and coating systems. The inventive copolymers are highly effective water retention agents even when used in relatively small amounts. They also exhibit excellent air pore stability and adhesiveness. They can also be used as stabilizers in building material and paint systems.Type: GrantFiled: June 30, 2005Date of Patent: October 20, 2009Assignee: Construction Research & Technology GmbHInventors: Michael Schinabeck, Stefan Friedrich, Uwe Holland, Thomas Pfeuffer, Michael Eberwein, Thomas Schuhbeck
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Patent number: 7601789Abstract: Fluorescent monomers are described and claimed which are synthesized by reacting a substituted or non-substituted naphthalic anhydride with an amine and with a moiety containing a polymerizable group. Such monomers are useful for the preparation of tagged treatment polymers. Such tagged treatment polymers are useful as scale inhibitors in industrial water systems.Type: GrantFiled: July 19, 2006Date of Patent: October 13, 2009Assignee: Nalco CompanyInventors: John D. Morris, Barbara E. Moriarty, Mingli Wei, Patrick G. Murray, Jerry L. Reddinger
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Patent number: 7589139Abstract: There is disclosed a polyvinylpyrrolidone powder composition including polyvinylpyrrolidone having a K value of not lower than 60 and not higher than 130 and a secondary amine or a salt thereof. The poly-vinylpyrrolidone powder composition is produced by adding a secondary amine or a salt thereof to polyvinylpyrrolidone having a K value of not lower than 60 and not higher than 130, or by heat drying an aqueous solution containing polyvinylpyrrolidone having a K value of not lower than 60 and not higher than 130 and a secondary amine or a salt thereof.Type: GrantFiled: April 4, 2007Date of Patent: September 15, 2009Assignee: Nippon Shokubai Co., Ltd.Inventors: Takashi Miyai, Mitsuru Nakajima
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Publication number: 20090226675Abstract: The present invention relates to an active energy beam-curable inkjet ink comprising a polymerizable monomer, wherein when a cured film obtained upon curing the ink is measured under conditions including an oscillation frequency of 1 Hz, the loss tangent (tan ?) at the glass transition temperature is 2 or greater.Type: ApplicationFiled: November 10, 2006Publication date: September 10, 2009Applicant: TOYO INK MFG, CO., LTD.Inventors: Yukitoshi Takahashi, Kazuhiro Jonai, Yasuo Yoshihiro
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Patent number: 7572836Abstract: This invention relates to the preparation of a copolymer which is used as a dispersing agent for titanate-based ceramic colloids. This copolymer has the following structure: Wherein R1 is H, NH4, alkali metals; R2 is H, NH4, alkali metals; R3 is H, NH4, alkali metals; a is an integer from 1 to 2000; b is an integer from 1 to 5000; and c is an integer from 1 to 1000; n is an integer from 1 to 500.Type: GrantFiled: April 5, 2006Date of Patent: August 11, 2009Assignee: National Taiwan Normal UniversityInventors: Kung-Chung Hsu, Chih-Hao Chen, Yu-Ping Tsai, Wen-Cheng Wei
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Patent number: 7572870Abstract: Method of producing vinyllactam copolymers by free-radical polymerization of at least one water-soluble N-vinyllactam and at least one hydrophobic comonomer in an organic solvent in the presence of an initiator under reflux conditions, where following conversion of 90 to 99% by weight of the vinyllactam used, some of the solvent is distilled off and the polymerization is continued.Type: GrantFiled: December 21, 2006Date of Patent: August 11, 2009Assignee: BASF SEInventors: Rainer Dobrawa, Ralf Widmaier, Eberhard Schupp, Klaus Schnell
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Patent number: 7572871Abstract: Method of producing vinyllactam copolymers by free-radical polymerization of at least one water-soluble N-vinyllactam and at least one hydrophobic comonomer in an organic solvent in the presence of an initiator under reflux conditions, where the initiator is introduced into the polymerization mixture from below.Type: GrantFiled: December 21, 2006Date of Patent: August 11, 2009Assignee: BASF SEInventors: Rainer Dobrawa, Ralf Widmaier, Eberhard Schupp, Klaus Schnell
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Publication number: 20090198029Abstract: To provide: an N-vinyl cyclic lactam polymer, which has excellent dispersibility and adsorptivity, and high calcium-ion capturing capability and can be preferably used in, for example, a detergent additive application; an application thereof; and a production method of the N-vinyl cyclic lactam polymer, the production method being capable of efficiently producing such an N-vinyl cyclic lactam polymer. An N-vinyl cyclic lactam polymer produced by a polymerization of a monomer component containing a carboxyl group-containing unsaturated monomer with a polymer having an N-vinyl cyclic lactam unit, wherein the carboxyl group-containing unsaturated monomer is 200 to 9900 parts by weight, relative to 100 parts by weight of the polymer having an N-vinyl cyclic lactam unit, and the N-vinyl cyclic lactam polymer has a viscosity at 25° C. of 100000 mPa·s or less in an aqueous solution with a solid content of 25% by weight.Type: ApplicationFiled: May 26, 2006Publication date: August 6, 2009Applicant: Nippon Shokubai Co., LtdInventors: Takahiro Tsumori, Daisuke Imai, Yoshikazu Fujii
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Publication number: 20090171050Abstract: This invention is directed toward surface active segmented block copolymers useful to treat the surface of a substrate by means of surface active functionalities of the surface active segmented block copolymer material binding with complementary surface functionalities of the polymer substrate.Type: ApplicationFiled: December 16, 2008Publication date: July 2, 2009Inventors: Jeffrey G. Linhardt, Devon A. Shipp, Jay F. Kunzler
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Publication number: 20090171049Abstract: This invention is directed toward reactive segmented block copolymers useful to treat the surface of a substrate by means of reactive functionalities of the reactive segmented block copolymer material reacting with complementary surface reactive functionalities of the polymer substrate.Type: ApplicationFiled: December 12, 2008Publication date: July 2, 2009Inventors: Jeffrey G. Linhardt, Devon A. Shipp, Jay F. Kunzler
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Publication number: 20090156745Abstract: A surface modified biomedical device is provided comprising a biomedical device having a coating on at least a portion thereof, the coating comprising one or more hydrophilic polymers having one or more non-ethylenically-unsaturated carboxylic acid terminated groups.Type: ApplicationFiled: December 8, 2008Publication date: June 18, 2009Inventors: Yu-Chin Lai, Weihong Lang
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Publication number: 20090131549Abstract: A process for preparing polyvinylpyrrolidones by free-radically initiated polymerization in the presence of an initiator found, which comprises performing the polymerization as a spray or droplet polymerization.Type: ApplicationFiled: November 14, 2008Publication date: May 21, 2009Applicant: BASF SEInventors: Dennis Losch, Ralf Widmaier, Volker Seidl, Hans-Ulrich Moritz, Karim Asif, Silke Biedasek
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Publication number: 20090130295Abstract: Compositions comprising a silyl-containing copolymer of a monomer system comprising: (A) a silyl-containing monomer having a structural formula (A) Wherein n=1-20, o=1-5 R=O or NH R?=H or CH3 R?=C1-C12 alkyl wherein m=1-20 (B) a neutral, hydrophilic, ethylenically unsaturated monomer; and (C) a cationic ethylenically unsaturated monomer are disclosed. Aqueous solutions of the silyl-containing copolymer form transparent coatings on substrates which have very high contact angles with aqueous solutions and receive aqueous ink with very low bleeding. Substrates coated with the copolymer, methods for printing images, and methods of forming a portion or all of an electronic feature, are also disclosed.Type: ApplicationFiled: November 14, 2008Publication date: May 21, 2009Inventors: Julie Broguiere, Jean-Christophe Castaing, Gilda M. Lizarraga
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Publication number: 20090124775Abstract: To provide a high concentration solution of a vinylpyrrolidone polymer having a low K value, which can be used in various applications such as medical applications and applications where coloring is problematic. A monomer component essentially containing N-vinylpyrrolidone, hydrogen peroxide, and ammonia are sequentially added to a copper catalyst-containing aqueous solvent and polymerized at 55 to 90° C., and the ammonia is used in an amount of 0.1 to 0.37% by weight based on the N-vinylpyrrolidone. As a result, a 40 to 60% by weight solution of a vinylpyrrolidone polymer having a K value of 60 or less, wherein the solution has: an N-vinylpyrrolidone content of 10 ppm or less relative to the vinylpyrrolidone polymer; an alkanol concentration of 100 ppm or less; and an ignition residue of 0.1% by weight or less, and a 50% by weight solution of the vinylpyrrolidone polymer has a hue (APHA) according to JIS-K3331 of 280 or less.Type: ApplicationFiled: November 4, 2005Publication date: May 14, 2009Applicant: NIPPON SHOKUBAI CO., LTD.Inventors: Takashi Miyai, Yoshitomo Nakata, Yasuhiro Matsuda, Mitsuru Nakajima
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Patent number: 7524905Abstract: Substantially linear copolymers derived from at least one acyclic aliphatic olefin monomer and at least one nitrogen containing vinyl monomer, wherein the at least one nitrogen containing vinyl monomer is according to Formula (I) wherein R19 is selected —C?C; and —C(O)—C?C; wherein R20 and R21 are independently selected from H, an alkyl group, an alkenyl group, an alkynyl group, an aryl group, a biphenyl group, a carboxylate group, a carboxyalkyl group, a carboxyarylalkyl group, an alkoxy group, an alkenyloxy group, an alkynyloxy group, an aryloxy group, an alkoxycarbonyl group, and derivatives thereof. Also disclosed are methods of making such copolymers using late transition metal catalyst complexes.Type: GrantFiled: February 20, 2008Date of Patent: April 28, 2009Assignee: Rohm and Haas CompanyInventors: David M. Conner, Brian Leslie Goodall, Lester Howard McIntosh, III
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Patent number: 7498395Abstract: A method of preparing a (meth)acrylate functionalized polymer comprising the steps of mixing together a monofunctional vinylic monomer with from 0.3-100% w/w (based on monofunctional monomer) of a polyfunctional vinylic monomer and from 0.0001-50% w/w of a chain transfer agent, reacting said mixture to form a polymer and terminating the polymerization reaction before 99% conversion. The resulting polymers are useful as components of surface coatings and inks, as moulding resins or in curable compounds, e.g. curable moulding resins or photoresists.Type: GrantFiled: March 8, 2004Date of Patent: March 3, 2009Assignee: Lucite International UK Ltd.Inventors: Michael S. Chisholm, Andrew T. Slark
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Publication number: 20090036550Abstract: Vinyllactam copolymers modified with polyalkylene oxide side-chains, and use thereof as solubilizers for substances which are sparingly soluble in water, and preparations comprising such copolymers.Type: ApplicationFiled: November 30, 2006Publication date: February 5, 2009Applicant: BASF SEInventors: Nathalie Bouillo, Alexander Khvorost, Ingo Munster, Rainer Dobrawa, Kathrin Meyer-Bohm, Ronald Frans Maria Lange
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Publication number: 20090018233Abstract: A synthetic route to polymers comprised of at least two monomers each with a very different reactivity ratio by using a corresponding crosslink agent for each monomer. Novel crosslink agents are described that provide for the copolymerization of at least one hydrophilic monomer with at least one lens monomer typically used to prepare materials for ophthalmic lenses. The new crosslink agents have a relatively high selectivity for the hydrophilic monomer and limited reactivity with the crosslink agent used to polymerize the lens monomer.Type: ApplicationFiled: July 8, 2008Publication date: January 15, 2009Inventors: Ivan M. Nunez, Joseph A. McGee, David E. Seelye
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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
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Publication number: 20080318785Abstract: The invention relates to preparations, in particular plant-protective preparations which contain a mixture of at least two different active plant-protective substances, wherein a) at least one active substance is selected from a conazole group (active substance 1) and b) another active plant-protective substance (active substance 2) whose water solubility at a temperature of 20° C. is less than 20 g/l, c) at least one type of copolymer CP consisting of M monomers comprising ?) at least one type of monoethylenically unsaturated monomer M1 comprising at least one sulphonic acid group and ?) at least one type of neutral monoethylenically unsaturated monomer M2, wherein the quantitative ratio between the active substance 1 and the other active plant-protective substance 2 ranges from 1:10 to 10:1.Type: ApplicationFiled: April 13, 2006Publication date: December 25, 2008Inventors: Sebastian Koltzenburg, Peter Dombo, Gunter Oetter, Christian Kruger, Wolfgang Schrof, Matthias Bratz
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Publication number: 20080311415Abstract: The present invention concerns the use, in the surface treatment of waterproofed wood, of an aqueous dispersion comprising at least one latex obtained by emulsion polymerization of a mixture of monomers comprising at least one acrylic monomer B comprising at least one ureido function.Type: ApplicationFiled: August 30, 2006Publication date: December 18, 2008Applicant: LAPEYREInventors: Jean-Christophe Castaing, William Bett, Jean-Noel Bousseau
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Patent number: 7456236Abstract: To offer adhesives for percutaneous absorption, adhesive compositions for percutaneous absorption and preparations for percutaneous absorption which show high ability to dissolve drugs and to dissolve absorption promoting agents and enable high percutaneous absorption and have suitable cohesion and adhesion and do not damage the skin when detached. Adhesives for percutaneous absorption which comprise a copolymer in which the constituents are methoxyethyl acrylate 40-60 wt %, lauryl(meth)acrylate 30-40 wt % and a polar monomer 10-25 wt % only.Type: GrantFiled: March 26, 2004Date of Patent: November 25, 2008Assignee: Cosmed Pharmaceutical Co., Ltd.Inventor: Minoru Kohara
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Patent number: 7449531Abstract: Method of producing vinyllactam copolymers by free-radical polymerization of at least one water-soluble N-vinyllactam and at least one hydrophobic comonomer in an organic solvent in the presence of an initiator under reflux conditions, where the condensate formed in the reflux is returned to the polymerization mixture from below.Type: GrantFiled: December 22, 2006Date of Patent: November 11, 2008Assignee: BASF SEInventors: Rainer Dobrawa, Ralf Widmaier, Eberhard Schupp, Klaus Schnell, Martin Meister
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Patent number: 7442751Abstract: Method of producing vinyllactam copolymers by free-radical polymerization of at least one water-soluble N-vinyllactam and at least one hydrophobic comonomer in an organic solvent in the presence of an initiator under reflux conditions, where N-vinyllactam is added to the reflux.Type: GrantFiled: December 22, 2006Date of Patent: October 28, 2008Assignee: BASF SEInventors: Rainer Dobrawa, Ralf Widmaier, Eberhard Schupp, Klaus Schnell, Karl-Hermann Strube
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Publication number: 20080247981Abstract: To provide a vinylpyrrolidone/vinyl acetate copolymer which is extremely reduced in thermal yellowing and is usable even at high temperatures and which can dissolve in water to give a transparent solution. The vinylpyrrolidone/vinyl acetate copolymer of the present invention has a residual vinylpyrrolidone content of 100 ppm or less relative to a solid content of the copolymer. A 5% by weight aqueous solution of the copolymer has an NTU value of 4.0 or less. A 50% aqueous solution of the copolymer has a Hazen color number (APHA) according to JIS-K3331 of 350 or less, the Hazen color number being measured by the following accelerated test.Type: ApplicationFiled: November 4, 2005Publication date: October 9, 2008Applicant: NIPPON SHOKUBAI CO., LTD.Inventors: Daisuke Imai, Keiko Izumi, Yoshitomo Nakata
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Patent number: 7432322Abstract: A coating composition for forming an inkjet-printable coating on a substrate is provided herein. The composition includes a cationic polymer, and an anionic polymer salt, preferably maleic anhydride/methyl vinyl ether salt (Ca/Na), e.g. GANTREZ® MS-955 (ISP). The coated substrates herein form ink images which are glossy and dry rapidly.Type: GrantFiled: August 18, 2005Date of Patent: October 7, 2008Assignee: ISP Investments Inc.Inventor: David K. Hood
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Patent number: 7422735Abstract: The invention relates to the use of at least one copolymer obtainable by (i) free-radically initiated copolymerization of a monomer mixture comprising (a) 1 to 99.99% by weight of at least one monomer chosen from N-vinylimidazoles and diallylamines optionally in partially or completely quaternized form; (b) 0 to 98.99% by weight of at least one neutral or basic water-soluble monomer which is different form (a); (c) 0 to 50% by weight of at least one unsaturated acid or unsaturated anhydride, (d) 0 to 50% by weight of at least one free-radically copolymerizable monomer which is different from (a), (b) or (c); and (e) 0.01 to 10% by weight of at least one monomer which acts as crosslinker and has at least two ethylenically unsaturated, nonconjugated double bonds; and (ii) subsequent partial or complete quaternization or protonation of the polymer in the case where the monomer (a) is unquaternized or only partially quaternized, as additive for skin cosmetic and dermatological preparations.Type: GrantFiled: June 26, 2000Date of Patent: September 9, 2008Assignee: BASF AktiengesellschaftInventors: Peter Hössel, Kristin Tiefensee, Axel Sanner, Reinhold Dieing, Michael Gotsche, Katrin Zeitz
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Patent number: 7423074Abstract: A polysiloxane copolymer that is useful for forming biomedical devices comprises blocks (I) and (II) and is terminated at each end with an ethylenically unsaturated radical: (*Dii*Diol*Dii*PS)x ??(I) (*Dii*PS)y ??(II) wherein: each Dii is independently a diradical residue of a diisocyanate; each Diol is independently a diradical residue of a diol having 1 to 10 carbon atoms; each PS is independently a diradical residue of a polysiloxane-containing diol or diamine; each * is independently —NH—CO—NH—, —NH—COO— or —OCO—NH—: x represents the number of blocks (I) and is at least 2, and y represents the number of blocks (II) and is at least 1.Type: GrantFiled: December 2, 2005Date of Patent: September 9, 2008Assignee: Bausch & Lomb IncorporatedInventors: Yu-Chin Lai, Weihong Lang, Edmond T. Quinn
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Publication number: 20080214726Abstract: Copolymers, desirably having a molecular weight of from 500 to 20000, of aminoesters or aminoamides of (meth)acrylic acid and (meth)acrylamides at a molar ratio of from 10:1 to 60:1, particularly from 12:1 to 50:1 and especially about 20:1, can act as gas hydrate inhibitors in water containing hydrocarbon gas streams. Desirably the aminoesters or aminoamides are N-alkyl-amino(esters or amides) in particular of the formula (I): H2C?CR1 C(O)XR2NR3R4 (I) where R1, R2, R3, R4 and X have defined meanings and the (meth)acrylamides are of the formula (II): H2C?CR6C(O)NR7R8 (II) where R6, R7 and R8 have defined meanings. Methods of treating gas water mixtures using the copolymers to inhibit gas hydrate formation are described.Type: ApplicationFiled: November 2, 2005Publication date: September 4, 2008Applicant: Croda International PlcInventors: David J. Freeman, Derek J. Irvine, Jane Kitching, Stephen C. Rogers
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Patent number: 7417101Abstract: A thermal responsive, water soluble copolymer is disclosed, which comprises the co-polymerization product of: (a) 0.5˜20 wt % of N-isopropyl acrylamide (NIPAAm); (b) 0.5˜20 wt % of 1-vinyl-2-pyrrolidinone (VPD); (c) 0.01˜10 wt % of acrylic acid (AA); and (d) 80˜90 wt % of acrylamide. The viscosity of.the co-polymerization product is adjustable by temperature. Moreover, phase-separating does not occur in the copolymer while temperature is changing and the structure as well as the fluidity are maintained, therefore, the copolymer of the present invention is suitable for the application of a micro-fluidic chip.Type: GrantFiled: November 22, 2005Date of Patent: August 26, 2008Assignee: Industrial Technology Research InstituteInventors: Hsun-Yu Lee, Chih-Hsiang Lin, In-Mau Chen
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Publication number: 20080199416Abstract: The present invention relates to the use of an anionically ampholytic or cationically ampholytic copolymer which which is obtainable by free-radical copolymerization of a1) at least one compound with a free-radically polymerizable, ?,?-ethylenically unsaturated double bond and at least one anionogenic and/or anionic group per molecule, a2) at least one compound with a free-radically polymerizable, ?,?-ethylenically unsaturated double bond and at least one cationogenic and/or cationic group per molecule, b) at least one free-radically polymerizable crosslinking compound which comprises at least two ?,?-ethylenically unsaturated double bonds per molecule, c) if appropriate in the presence of at least one silicone compound comprising a polyether group and/or a free-radically polymerizable olefinically unsaturated double bond, as rheology modifier for hair cosmetic compositions.Type: ApplicationFiled: July 21, 2006Publication date: August 21, 2008Applicant: BASF AKTIENGESELLSCHAFTInventors: Son Nguyen Kim, Matthias Laubender, Peter Hossel
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Publication number: 20080197345Abstract: Disclosed herein is a copolymer, which may include side chains which may decrease the surface energy of an insulating layer, thereby improving the alignment of a semiconductor material, and side chains including photoreactive functional groups having an increased degree of cross-linking, thereby improving the characteristics of an organic thin film transistor manufactured using the same, an organic insulating layer composition including the copolymer, an organic insulating layer, an organic thin film transistor, an electronic device including the same and methods of fabricating the same. According to the copolymer of example embodiments, the surface energy of an insulating layer may be decreased, so that the alignment of a semiconductor material may be improved, thereby improving the threshold voltage and charge mobility and decreasing the generation of hysteresis at the time of driving the transistor.Type: ApplicationFiled: October 22, 2007Publication date: August 21, 2008Inventors: Joo Young Kim, Eun Kyung Lee, Sang Yoon Lee
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Patent number: 7414088Abstract: A method comprising forming and grafting polymers on carbon nanotubes, a functionalized product and product dispersion produced by the method, a method of forming composites from the functionalized carbon nanotubes, and the composites produced therefrom.Type: GrantFiled: September 3, 2004Date of Patent: August 19, 2008Assignee: The Board of Regents for Oklahoma State UniversityInventors: Warren Thomas Ford, Shuhui Qin
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Publication number: 20080177016Abstract: A monomer with a chromophore group represented by Formula (I): wherein AR1 represents a substituted or unsubstituted aromatic group; AR2 represents a substituted or unsubstituted aromatic group or a substituted or unsubstituted alkyl group; and R represents a substituted or unsubstituted alkyl group, with the proviso that one of R, AR1, and AR2 has a substituent with a polymerizable functional group. The monomer can be advantageously used to prepare polymeric dispersants for pigment dispersion, especially inkjet inks.Type: ApplicationFiled: July 4, 2006Publication date: July 24, 2008Applicant: AGFA GRAPHICS NVInventors: Geert Deroover, Wojciech Jaunky, Lambertus Groenendaal, Johan Loccufier
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Publication number: 20080177303Abstract: The present disclosure relates to Shape Memory Polymers (SMP's) comprising function groups that allow the polymers to be elastically deformed, utilized in the elastically deformed state, and subsequently returned to the original polymorphic shape.Type: ApplicationFiled: June 20, 2007Publication date: July 24, 2008Inventors: Mitchell L. Anthamatten, Jiahui Li
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Patent number: 7402641Abstract: Terpolymer compositions of vinyl caprolactam (VCL), dimethylaminopropyl methacrylamide (DMAPMA) and hydroxyethyl methacrylate (HEMA) are described to coat substrates for use in computer printers, and provide advantageous print quality thereon.Type: GrantFiled: June 2, 2005Date of Patent: July 22, 2008Assignee: ISP Investments Inc.Inventors: Stephen L. Kopolow, David K. Hood, Drupesh Patel
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Patent number: 7396890Abstract: The present invention relates to (meth)acrylamide monomers of the formula: wherein R is H or CH3, R1 is selected from H, substituted and unsubstituted alkyl groups having 1 to 8 carbon atoms, substituted and unsubstituted benzene and toluene groups and and R2, R3 and R4 are independently selected from alkyl groups having 1 to 8 carbon atoms, substituted and unsubstituted benzene and toluene groups, and —OSiR5R6R7 wherein R5, R6 and R7 are independently selected from the group consisting of straight or branched alkyl groups having 1 to 4 carbon atoms. Polymers made therefrom are also disclosed.Type: GrantFiled: March 15, 2007Date of Patent: July 8, 2008Assignee: Johnson & Johnson Vision Care, Inc.Inventors: Diana Zanini, Xiaoping Lin, Frank Mclock
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Publication number: 20080139770Abstract: Copolymers which comprise dicarboxylic acid units modified with —SR, —CSNR2 and/or —CN units, and also at least one further comonomer. Processes for preparing them by polymer-analogous reaction, and their use as corrosion inhibitors.Type: ApplicationFiled: January 24, 2006Publication date: June 12, 2008Applicant: BASF AktiengesellschaftInventors: Alexander Gothlich, Guido Vandermeulen, Helmut Witteler, Monica Fernandez Gonzalez
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Publication number: 20080125554Abstract: Methods of producing vinyllactam copolymers which include: providing at least one water-soluble N-vinyllactam; providing at least one hydrophobic comonomer; and subjecting the at least one water-soluble N-vinyllactam and the at least one hydrophobic comonomer to free-radical polymerization in an organic solvent in the presence of an initiator, under a combination of process measures selected from the group consisting of A and B; wherein: (A) comprises (i) polymerization under reflux, and at least two of (ii), (iii), (iv), (v), (vi), and (vii), wherein (ii) comprises an addition of at least 5 mol % of N-vinyllactam to the polymerization mixture if at least 70 mol % of the total amount of hydrophobic monomer used have completely reacted, (iii) comprises return of condensate formed in the reflux from below to the polymerization mixture, (iv) comprises introduction of the initiator in the form of a solution in an organic solvent from below into the polymerization mixture, (v) comprises addition of N-vinyllactam tType: ApplicationFiled: November 29, 2007Publication date: May 29, 2008Applicant: BASF AktiengesellschaftInventors: Rainer Dobrawa, Ralf Widmaier, Klaus Schnell, Karl-Hermann Strube, Jurgen Nieberle, Reinhold Dieing, Bernd de Potzolli, Andreas Gruber, Ulrich Filges, Martin Meister, Josef Neutzner, Wolfgang Bouquet, Eberhard Schupp