Monomer Containing At Least Two Carboxylic Acid Ester Groups Patents (Class 526/321)
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Patent number: 6528606Abstract: Disclosed is a method of preparing a stable composition of radically copolymerizable monomers, said composition containing firstly at least one monomer which has at least one urea function in its formula and secondly at least one monomer which does not have an isocyanate function in its formula, said method comprising preparing said monomer(s) having urea function(s) by reaction of two types of reagent: at least one radically copolymerizable monomer which has at least one isocyanate function in its formula with at least one amine selected from primary and secondary amines, and incorporating said monomer(s) which does(do) not have an isocyanate function in its(their) formula, prior to said reaction, together with one of said reagents, before adding the other of said reagents, and/or during the addition of said reagents, and/or after said reaction.Type: GrantFiled: May 31, 2001Date of Patent: March 4, 2003Assignee: Corning S.A.Inventors: Marie-Maud Bear, Xavier Lafosse
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Patent number: 6525155Abstract: Biodegradable anionic polymers are disclosed which include recurring polymeric subunits preferably made up of vinylic and dicarboxylic monomers such as vinyl acetate or vinyl alcohol and maleic anhydride, itaconic anhydride or citraconic anhydride, or combinations thereof. Free radical polymerization is used in the synthesis of the polymers, which are then hydrolyzed to replace ester groups with alcohol groups. The polymers may be complexed with ions and/or mixed with fertilizers or seed to yield agriculturally useful compositions. The preferred products of the invention may be applied foliarly, to seeds, to fertilizer, or to the earth adjacent growing plants in order to enhance nutrient uptake by the plants.Type: GrantFiled: December 12, 2001Date of Patent: February 25, 2003Inventors: John Larry Sanders, James Michael Kimmerly, Grigory Mazo
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Patent number: 6518382Abstract: Biodegradable anionic polymers are disclosed which include recurring polymeric subunits preferably made up of vinylic and dicarboxylic monomers such as vinyl acetate or vinyl alcohol and maleic anhydride, itaconic anhydride or citraconic anhydride, or combinations thereof. Free radical polymerization is used in the synthesis of the polymers, which are then hydrolyzed to replace ester groups with alcohol groups. The polymers may be complexed with ions and/or mixed with fertilizers or seed to yield agriculturally useful compositions. The preferred products of the invention may be applied foliarly, to seeds, to fertilizer, or to the earth adjacent growing plants in order to enhance nutrient uptake by the plants.Type: GrantFiled: December 13, 2001Date of Patent: February 11, 2003Inventors: John Larry Sanders, James Michael Kimmerly, Grigory Mazo
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Patent number: 6515091Abstract: Biodegradable anionic polymers are disclosed which include recurring polymeric subunits preferably made up of vinylic and dicarboxylic monomers such as vinyl acetate or vinyl alcohol and maleic anhydride, itaconic anhydride or citraconic anhydride, or combinations thereof. Free radical polymerization is used in the synthesis of the polymers, which are then hydrolyzed to replace ester groups with alcohol groups. The polymers may be complexed with ions and/or mixed with fertilizers or seed to yield agriculturally useful compositions. The preferred products of the invention may be applied foliarly, to seeds, to fertilizer, or to the earth adjacent growing plants in order to enhance nutrient uptake by the plants.Type: GrantFiled: April 30, 2001Date of Patent: February 4, 2003Inventors: John Larry Sanders, James Michael Kimmerly, Grigory Mazo
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Patent number: 6515089Abstract: Provided are a method, upon radical copolymerization of a vinyl-containing porphyrin compound and a radically polymerizable monomer, thereby obtaining a porphyrin-nucleus introduced polymer, of controlling reactivity of the porphyrin-nucleus introduced polymer with a metal by selecting the radically polymerizable monomer; and a method for measuring a trace metal by measuring a change in absorbance caused by a complex forming reaction between a porphyrin-nucleus introduced polymer, which has been obtained by radical copolymerization of a vinyl-containing porphyrin compound and a radically polymerizable monomer, and a heavy metal ion, the radically polymerizable monomer being selected so as to heighten reaction selectivity of the porphyrin-nucleus introduced polymer to a metal to be measured.Type: GrantFiled: November 30, 2001Date of Patent: February 4, 2003Assignee: Kowa Co., Ltd.Inventors: Takaharu Asano, Hiroshi Nakao
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Patent number: 6515092Abstract: Biodegradable anionic polymers are disclosed which include recurring polymeric subunits preferably made up of vinylic and dicarboxylic monomers such as vinyl acetate or vinyl alcohol and maleic anhydride, itaconic anhydride or citraconic anhydride, or combinations thereof. Free radical polymerization is used in the synthesis of the polymers, which are then hydrolyzed to replace ester groups with alcohol groups. The polymers may be complexed with ions and/or mixed with fertilizers or seed to yield agriculturally useful compositions. The preferred products of the invention may be applied foliarly, to seeds, to fertilizer, or to the earth adjacent growing plants in order to enhance nutrient uptake by the plants.Type: GrantFiled: December 17, 2001Date of Patent: February 4, 2003Inventors: John Larry Sanders, James Michael Kimmerly, Grigory Mazo
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Patent number: 6515090Abstract: Biodegradable anionic polymers are disclosed which include recurring polymeric subunits preferably made up of vinylic and dicarboxylic monomers such as vinyl acetate or vinyl alcohol and maleic anhydride, itaconic anhydride or citraconic anhydride, or combinations thereof. Free radical polymerization is used in the synthesis of the polymers, which are then hydrolyzed to replace ester groups with alcohol groups. The polymers may be complexed with ions and/or mixed with fertilizers or seed to yield agriculturally useful compositions. The preferred products of the invention may be applied foliarly, to seeds, to fertilizer, or to the earth adjacent growing plants in order to enhance nutrient uptake by the plants.Type: GrantFiled: May 1, 2000Date of Patent: February 4, 2003Inventors: John Larry Sanders, James Michael Kimmerly, Grigory Mazo
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Patent number: 6506535Abstract: Disclosed is a positive working photoresist composition comprising an acid-decomposable polymer containing at least a repeating unit represented by the following formula (I) and at least either one repeating unit represented by the following formula (IIa) or (IIb), and also disclosed is a positive working photoresist composition comprising (A) a compound capable of generating an acid upon irradiation with actinic rays or radiation, (B) an acid-decomposable polymer containing at least a repeating unit represented by the following formula (I) and at least either one repeating unit represented by the following formula (IIa) or (IIb), (C) at least one solvent capable of dissolving the components (A) and (B), (D) an organic basic compound and (E) at least one surfactant selected from fluorine-containing surfactants, silicon-containing surfactants and nonionic surfactants:Type: GrantFiled: October 30, 2000Date of Patent: January 14, 2003Assignee: Fuji Photo Film Co., Ltd.Inventors: Kazuyoshi Mizutani, Kenichiro Sato, Kunihiko Kodama
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Patent number: 6458174Abstract: Copolymers containing A) from 45 to 54 mol % of divalent structural units of the formula 1 in which a and b=0 or 1 and a+b=1, B) from 35 to 53 mol % of divalent structural units of the formula 2 —H2C—CHR2— (2) and C) from 1 to 25 mol % of divalent structural units derived from polyolefins, where the polyolefins can be derived from monoolefins having 3 to 5 carbon atoms, wherein a) R1 is an alkyl or alkenyl radical having 10 to 40 carbon atoms or an alkoxyalkyl radical having 1 to 100 alkoxy units and 1 to 30 carbon atoms in the alkyl radical, and b) R2 is an alkyl radical having 10 to 50 carbon atoms, c) the alkylvinylidene content of the polyolefins on which the structural units C) are based is at least 50 mol %, and d) the number of carbon atoms in the polyolefin molecules on which the structural units C) are based is from 35 to 350.Type: GrantFiled: January 19, 2000Date of Patent: October 1, 2002Assignee: Clariant GmbHInventors: Matthias Krull, Waltraud Nagel
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Patent number: 6455653Abstract: The invention provides compositions for producing lenses by casting. The compositions are useful in producing ophthalmic lens by casting of a surface or layer onto a preform.Type: GrantFiled: May 8, 2000Date of Patent: September 24, 2002Assignee: Johnson & Johnson Vision Care, Inc.Inventors: Ivan Nunez, Venkat Sekharipuram, Michele Alton
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Patent number: 6451950Abstract: A polymer dispersant for pigments based on a random copolymer wherein the copolymer has a weight average molecular weight of at least 3000 and comprises a polymeric backbone of primarily acrylic monomers wherein the backbone contains multiple pigment anchoring groups attached thereto including at least one amide group and one or more additional pigment anchoring groups selected from the group consisting of aromatic esters, aromatic amines, and quaternary ammonium salts. These materials disperse a wide variety of pigments and are useful in solvent borne coatings where they can provide improved efficiency of pigment use, lower paint viscosity, and reduced emission of volatile organic solvent.Type: GrantFiled: July 5, 2000Date of Patent: September 17, 2002Assignee: E. I. du Pont de Nemours and CompanyInventor: Sheau-Hwa Ma
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Patent number: 6451951Abstract: The present invention relates to an oligomer with a semi-telechelic nitrogen-functionality and at least one ethylenic unsaturation pendant to the backbone of the oligomer. In addition, a process is provided to prepare the semi-telechelic nitrogen-functional oligomer. The semi-telechelic nitrogen-functional oligomer is useful as a dispersant for pigments in radiation curable formulations.Type: GrantFiled: June 21, 2001Date of Patent: September 17, 2002Assignee: Rohm and Haas CompanyInventors: Ronald Scott Beckley, Barry Clifford Lange, David William Whitman, Jo Ann Arceneaux, Michael Christopher Kramer, Peter Thomas Weissman
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Publication number: 20020128342Abstract: New polymers, compositions comprising these polymers, and methods of using these compositions are provided. The polymers comprise styrene and maleic anhydride monomers with at least some of the maleic anhydride monomers having certain functional groups bonded thereto. Preferred functional groups include those derived from adhesion promoters (e.g., 2-aminophenol), photoinitiators (e.g., 4-aminoacetophenone), and solubilizers (e.g., 4-aminobenzoic acid). The polymers can be incorporated according to conventional processes into compositions which are then used to form a color filter to be used in a liquid crystal display. The final color filter has a high resolution, is highly resistant to solvents typically used in the color filter manufacturing process, is strongly adhered to the color filter substrate, has superior optical clarity, is highly soluble in a wide range of alkali developers, and has excellent heat and UV light stability.Type: ApplicationFiled: February 25, 2002Publication date: September 12, 2002Inventors: Gu Xu, Dan W. Brewer, Timothy Limmer, Mike Stroder, Shelly Fowler, Jonathon Mayo
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Patent number: 6448352Abstract: The present invention provides novel bicyclic photoresist monomers, and photoresist copolymer derived from the same. The bicyclic photoresist monomers of the present invention comprise both amine functional group and acid labile protecting group, and are represented by the formula: where m, n, R, V and B are those defined herein. The photoresist composition comprising the photoresist copolymer of the present invention has excellent etching resistance and heat resistance, and remarkably enhanced PED stability (post exposure delay stability).Type: GrantFiled: July 21, 2000Date of Patent: September 10, 2002Assignee: Hyundai Electronics Industries Co., Ltd.Inventors: Min Ho Jung, Jae Chang Jung, Geun Su Lee, Ki Ho Baik
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Patent number: 6437067Abstract: Provided are porphyrin-nucleus introduced polymers obtained by radical copolymerization of a radically polymerizable monomer with a porphyrin compound represented by formula (1) or (2): where R represents a hydrogen atom or a C1-6 alkyl group. Also provided are a trace metal measuring reagent and a trace metal removing agent, each containing the porphyrin-nucleus introduced polymer. The porphyrin-nucleus introduced polymer can be obtained as a compound having desired properties or reactivity by making use of easily available porphyrin compounds. The polymer is useful as a reagent for measuring or an agent for removing heavy metals.Type: GrantFiled: November 30, 2001Date of Patent: August 20, 2002Assignee: Kowa Co., Ltd.Inventors: Takaharu Asano, Hiroshi Nakao
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Patent number: 6437069Abstract: A curable resin composition comprising (A) at least one aromatic diallyl compound, (B) at least one maleate diester and/or fumarate diester, (C) at least one (meth)allyl carbonate compound and (D) at least one radical chain transfer agent gives a cured material having excellent optical and mechanical properties.Type: GrantFiled: August 2, 2000Date of Patent: August 20, 2002Assignee: Daiso Co., Ltd.Inventor: Katsutoshi Yokoyama
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Publication number: 20020107350Abstract: Polymerizable monomer compositions, transparent polymer substrates and optical and ophthalmic articles obtained.Type: ApplicationFiled: November 28, 2001Publication date: August 8, 2002Applicant: Essilor International Compagnie Generale D'OptiqueInventors: Gilles Widawski, Jean-Paul Cano, Jean-Francois Magne
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Publication number: 20020103319Abstract: The invention provides water-soluble, &bgr;-hydroxy carbamate-functional materials and coating compositions, especially waterborne coating compositions, containing the carbamate-functional materials. The invention further provide a coating prepared from the coating composition and a coated substrate, especially an automotive substrate, having the coating thereon.Type: ApplicationFiled: January 9, 2002Publication date: August 1, 2002Inventors: Walter H. Ohrbom, David J. Law, Patricia A. Herrel
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Publication number: 20020086966Abstract: The invention provides an aqueous coating composition containing a dispersed, emulsified, or dissolved material (organic compound, resin, or polymer), in which the material is dispersed, emulsified, or dissolved with a water-soluble, carbamate-functional material. The invention further provides a coating prepared from the coating composition and a coated substrate, especially an automotive substrate, having the coating thereon.Type: ApplicationFiled: January 30, 2002Publication date: July 4, 2002Inventors: Robert D. Weise, Walter H. Ohrbom, Patricia A. Herrel, David J. Law
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Patent number: 6410671Abstract: The present invention relates to more or less substituted acrylamide or acrylate and zwitterion monomer hydrosoluble copolymers.Type: GrantFiled: April 13, 2001Date of Patent: June 25, 2002Assignee: Institute Francais du PetroleInventors: Jean-François Argillier, Annie Audibert-Hayet, Pierre Le Perchec, Pierre Louis Carrette
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Patent number: 6395852Abstract: A copolymer of the monomers of the following components A to C and, if required, D, the total amount by weight of which is 100 mol %: a: from 20 to 80 mol % of at least one ethylenically unsaturated dicarboxylic acid or of an anhydride, ester and/or amide thereof as component A, b: from 1 to 79 mol % of at least one diketene of the general formula (I) where R1 and R2 independently are each hydrogen or C1-C30-alkyl, as component B, c: from 1 to 79 mol % of at least one vinyl ester, alkyl (meth)acrylate, (meth)acrylonitrile or mixtures thereof as component C and d: from 0 to less than 0.5 mol % or, if at least 20 mol % of component C are present, from 0 to 20 mol % of at least one further olefinically unsaturated monomer as component D, is used as a flow improver in mineral oil middle distillates.Type: GrantFiled: November 2, 1999Date of Patent: May 28, 2002Assignee: BASF AktiengesellschaftInventors: Dieter Faul, Bernd Wenderoth, Gabriele Dralle-Voss, Gunnar Schornick
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Patent number: 6395827Abstract: An aqueous crosslinkable coating composition suitable for the provision of thick coatings without incurring carbon dioxide bubble formation comprising: (A) an aqueous dispersion of at least one hydroxyl- and acid-functional vinyl polymer having a hydroxyl value of 8 to 250 mg KOH/g of polymer and an acid value of 2 to 55 mg KOH/g of polymer, where the contribution of at least 30% of the acid value results from a monocarboxylic acid(s) of formula: CH2—CR1—Q—CO2H (1) where R1 is H or lower alkyl of 1 to 5 carbon atoms and Q is a spacer group of formula: [—C(═O)—X—(CH2)m—]k (2) where X is —O— or —NH—, m is at least 1, preferably 2 or 3, and k is at least 1, preferably 2, 3, 4 or 5; and (B) at least one organic polyisocyanate. The acid of formula (1) preferably comprises &bgr;-carboxyethyl acrylate.Type: GrantFiled: November 22, 1999Date of Patent: May 28, 2002Assignee: Avecia LimitedInventors: David Alan Pears, Erik Hendrik Colstee, Gerardus Cornelis Overbeek, John Christopher Padget, Tijs Nabuurs
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Patent number: 6387995Abstract: A process for producing a microporous oil sorbent polymer comprising the steps of: dissolving a polyunsaturated monomer in a silicone organic solvent to provide a monomer mixture containing more than 90% by weight polyunsaturated monomer; polymerizing said monomers by precipitation polymerization, under an inert atmosphere to precipitate microporous, micro-particles in the form of micro-particles, agglomerates and aggregates having a bulk density of about 0.02 gm/cm3 to about 0.01 gm/cm3 and capable of adsorbing at least about 20% by weight organic materials based on the total weight of polymer plus adsorbed organic material.Type: GrantFiled: February 1, 2001Date of Patent: May 14, 2002Assignee: AMCOL International CorporationInventor: Milan F. Sojka
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Patent number: 6376600Abstract: Aqueous dispersion of copolymers formed by the polymerization of a monomer mixture containing 0.05% to less than 4.5% by weight of certain terminally unsaturated oligomers are useful for improving the scrub resistance, corrosion resistance, opacifying capacity and/or efflorescence resistance of a coating.Type: GrantFiled: December 11, 2000Date of Patent: April 23, 2002Assignee: Rohm and Haas CompanyInventors: Robert David Solomon, Bradley Keith Hageman, Leo Joseph Procopio, Margo Raate Schaefer, Gary David Greenblatt, Stephen Scott Edwards, Gary Robert Larson, Alvin Michael Maurice, Stewart Orlyn Williams, Patricia Marie Lesko, Peter Reeves Sperry
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Patent number: 6359093Abstract: An amphipathic compound represented by any of the following Formulas: (R1 is a linear or branched, saturated hydrocarbon group having 6 to 48 carbon atoms, or a linear or branched, unsaturated hydrocarbon group containing 1 to 12 unsaturated double bond and having 6 to 48 carbon atoms; Y is NH, N—(CH2—CH═CH2), or O; Q is —CH2—C(R2)═CH2 or —R4—O—CO—C(R2)═CH2; and M is alkali metal, an ammonium group, or —(CH2CH2O)mH), a copolymer of the amphipatic compound with a copolymerizable ethylenically unsaturated compound and, a paper making additive containing a water soluble or dispersible high molecular compound as an active ingredient and processes for producing these high molecular compounds.Type: GrantFiled: February 16, 2000Date of Patent: March 19, 2002Assignee: Mitsui Chemicals, Inc.Inventors: Toshihiko Takaki, Masaru Tanabe, Shoko Oyanagi
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Publication number: 20020026020Abstract: The present invention provides a high temperature continuous polymerization and condensation process for preparing a polymeric product. The process includes continuously charging into a reaction zone: at least one radically-polymerizable monomer having a radically polymerizable group and at least one condensation reactive functionality; and at least one modifying agent having a functional group capable of reacting with the condensation reactive functionality. The reaction zone includes at least one primary reactor, but may, and preferably does, contain a secondary reactor. The process further includes maintaining an effective temperature in the primary reactor to cause polymerization of the monomer and to allow at least a portion of the condensation reactive functionality to react with the functional group of the modifying agent.Type: ApplicationFiled: July 2, 1999Publication date: February 28, 2002Inventors: JOHN D. CAMPBELL, JON A. DEBLING, DOUGLAS J. DEYOUNG, IOANNIS GIANNAKITSAS, DEAN R. HELLWIG, DAVID D. SCHATZ, FOUAD TEYMOUR, MARCO A. VILLALOBOS
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Patent number: 6346591Abstract: The &bgr;-hydroxy carbamate, ethylenically unsaturated monomer of the invention can be polymerized as a homopolymer or copolymerized with other monomers. The polymerization can be carried out in an aqueous medium. The &bgr;-hydroxy carbamate monomer is polymerized to form water-soluble homopolymers or, if polymerized as a mixture with one or more comonomers, copolymers that are soluble, emulsifiable, or dispersible in water. The &bgr;-hydroxy carbamate monomer can be used as a replacement monomer for acrylamide.Type: GrantFiled: May 21, 1999Date of Patent: February 12, 2002Assignee: BASF CorporationInventors: Walter H Ohrbom, Patricia A. Herrel
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Patent number: 6346590Abstract: The present invention provides a high temperature continuous polymerization and condensation process for preparing a polymeric product. The process includes continuously charging into a reaction zone: at least one radically-polymerizable monomer having a radically polymerizable group and at least one condensation reactive functionality; and at least one modifying agent having a functional group capable of reacting with the condensation reactive functionality. The reaction zone includes at least one primary reactor, but may, and preferably does, contain a secondary reactor. The process further includes maintaining an effective temperature in the primary reactor to cause polymerization of the monomer and to allow at least a portion of the condensation reactive functionality to react with the functional group of the modifying agent.Type: GrantFiled: July 2, 1999Date of Patent: February 12, 2002Assignee: S. C. Johnson Commercial Markets, Inc.Inventors: John D. Campbell, Jon A. Debling, Douglas J. DeYoung, Ioannis Giannakitsas, Dean R. Hellwig, David D. Schatz, Fouad Teymour, Marco A. Villalobos
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Publication number: 20020007009Abstract: The invention provides functionalized copolymers in the form of their aqueous dispersions or water-redispersible powders, based onType: ApplicationFiled: May 7, 2001Publication date: January 17, 2002Applicant: Wacker-Chemie GmbHInventors: Kurt Stark, Peter Tschirner, Peter Ball, Klaus Buppelmann, Udo Kotschi
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Publication number: 20020004574Abstract: A polymerizable composition comprising an effective amount of at least one tetrafunctional acrylate monomer. In one embodiment of the invention, a polymerizable composition is a compound comprising of at least 50 percent by weight of at least one tetrafunctional acrylate monomer, from 5 to 20 percent by weight of at least one modified bisphenol A epoxy diacrylate monomer, from 0 to 25 percent by weight of at least one acrylate monomer selected from aliphatic difunctional and polyfunctional acrylates, from 0 to 3 percent by weight of at least one UV absorber, and a source of free radicals. The lens-forming material resulted from the polymerizable composition is introduced to a lens mold with a mold cavity having a configuration conforming to the optical lens to be molded. A radiation energy source is used to cure the lens-forming material in the filled mold. The radiation energy source comprises a U-shaped UV light.Type: ApplicationFiled: July 16, 1999Publication date: January 10, 2002Inventors: WILLIAM M. HUNG, GUIGUI WANG
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Patent number: 6335409Abstract: The invention is concerned with novel cross-linkable, photoactive polymer materials with 3-aryl-acrylic acid esters and amides as well as their use as orienting layers for liquid crystals and for the production of non-structured or structured optical elements and multi-layer systems.Type: GrantFiled: July 11, 2000Date of Patent: January 1, 2002Assignee: Rolic AGInventors: Rolf-Peter Herr, François Herzog, Andreas Schuster
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Patent number: 6326446Abstract: The present invention provides a macroporous hyperhydroxy polymer formed from a monomer mixture of substantially similar fractions of functional acrylic monomers which are combined to form a compound having a polymer skeleton which provides a high number of hydroxyl sites. The result is a material which, when hydrated, has a pore size relative to oxygen and water which provides a high ratio of free water to bound water. When formed into contact lenses, the material exhibits oxygen permeability approaching that of a static layer of tears of equal thickness and water contents of 95% or greater. The polymer is also suitable for use as burn dressings, bandages, soil hydratants, surface treatments, lubricants and coatings, absorbents, transport membranes and the like.Type: GrantFiled: December 14, 2000Date of Patent: December 4, 2001Inventor: James T Carter
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Patent number: 6323360Abstract: The present invention discloses the synthesis of a novel crosslinker having the following structure: R1 is C(R8) (R9) wherein (R8) is H, or an alkyl group having 1-5 carbon atoms, and (R9) is H, or an alkyl group having 1-5 carbon atoms. R2 is H, or an alkyl group having 1-5 carbon atoms. R3 is H or an alkyl group having 1-5 carbon atoms. R4 is an alkyl group having 1-5 carbon atoms. R5 is H or an alkyl group having 1-5 carbon atoms. R6 is H or an alkyl group having 1-5 carbon atoms. R7 is C(R10) (R11) wherein (R10) is H, or an alkyl group having 1-5 carbon atoms, and (R11) is H, or an alkyl group having 1-5 carbon atoms. The crosslinker is stable in a basic environment, but decomposable in an acidic environment.Type: GrantFiled: November 14, 2000Date of Patent: November 27, 2001Assignee: The Research Foundation of State University of New YorkInventors: Eli Ruckenstein, Hongmin Zhang
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Publication number: 20010044514Abstract: The present invention provides a process for the direct synthesis of high melting polymers made from dimeric cyclic esters. In particular, the present invention provides a process for synthesis of polylactic acid (PLA) from racemic materials such as racemic lactide and polymandelide from mandelide. The process further provides racemic metal organic ligand catalysts such as racemic salbinap that catalyzes the polymerization of racemic dimeric cyclic ester monomers to a polylactide stereocomplex. Polymandelide and mixed dimeric cyclic esters are also prepared in the presence of low amounts of water.Type: ApplicationFiled: December 13, 2000Publication date: November 22, 2001Applicant: Board of Trustees operating Michigan State UniversityInventors: Gregory L. Baker, Milton R. Smith
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Patent number: 6316569Abstract: The objects of the present invention are: a self-light-stabilized photochromic thermoplastic or thermoreticulated polymer carrying non-cyclic tertiary amide-functionalized pendant groups; its preparation method; photochromic articles constituted, wholly or in part of such a polymer. Said polymer is obtained advantageously by radical co-polymerization of a composition containing an effective amount of at least one monomer of the formula: in which: R1 is hydrogen or a methyl group; n is 2 or 3; R2 and R3 are identical or different and represent independently a methyl or ethyl group; and are advantageously identical; said monomer providing said photostabilizing non-cyclic tertiary amine-functionalized pendant groups.Type: GrantFiled: October 4, 1999Date of Patent: November 13, 2001Assignee: Corning S.A.Inventors: David Henry, Xavier Lafosse
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Patent number: 6313251Abstract: A cross-linkable polymeric casting composition including an effective amount of A: an acrylic or methacrylic monomer which provides high rigidity and low color dispersion (High Abbe number) to the final product; B: a di- or polythiol compound; C: a di- or polyvinyl monomer; and optionally D: a polymerizable comonomer.Type: GrantFiled: September 28, 1999Date of Patent: November 6, 2001Assignee: Sola International Holdings, Ltd.Inventors: Huan Kiak Toh, Ian Roger Bateman, David Robert Diggins, Bohdan Grzegorz Cieslinski
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Patent number: 6312867Abstract: A novel ester compound having an exo-form 2-alkylbicyclo[2.2.1]heptan-2-yl group as the protective group is provided as well as a polymer comprising units of the ester compound. The polymer is used as a base resin to formulate a resist composition having a higher sensitivity, resolution and etching resistance than conventional resist compositions.Type: GrantFiled: November 1, 1999Date of Patent: November 6, 2001Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Takeshi Kinsho, Tsunehiro Nishi, Hideshi Kurihara, Koji Hasegawa, Takeru Watanabe, Osamu Watanabe, Mutsuo Nakashima, Takanobu Takeda, Jun Hatakeyama
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Patent number: 6310159Abstract: The present invention refers to a paper surface sizing composition comprising a copolymer having: a) structural units derived from ethylenically unsaturated hydrocarbons; structural units derived from monomers selected from esters of ethylenically unsaturated mono-carboxylic acids, half-esters of ethylenically unsaturated dicarboxylic acids, allylethers and vinylethers and mixtures thereof; optionally c) structural units derived from ethylenically unsaturated monomers selected from monocarboxylic acids as well as salts and amides thereof, dicarboxylic acids as well as salts, amides and half-amides thereof, and cyclic anhydrides and imides of dicarboxylic acids and mixtures thereof; and optionally d) structural units derived from alkyl or amino-substituted alkyl acrylates or methacrylates with the proviso, that if no structural units c) are present, the structural units b) are derived from monomers selected from half esters of ethylenically unsaturated dicarboxylic acids.Type: GrantFiled: January 19, 1999Date of Patent: October 30, 2001Assignee: The Dow Chemical CompanyInventors: Jürgen Eiffler, Roger Carlsson, Jürgen Hermanns, Stephen Oliver
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Patent number: 6310162Abstract: The invention relates to an ophthalmic lens comprising the cured product of a composition comprising: 60-99 wt % of a poly(allyl carbonate) of a polyhydroxy alcohol, said polyhydroxy alcohol having from 2 to 20 carbon atoms and from 2 to 6 hydroxy groups in the molecule; 0.01-10 wt % of at least one radical initiator; 0-20 wt % of comonomers; and a cyclohexyl diallyl ester oligomer in an amount of 0.05 to 60 wt %, having the formula I wherein X denotes a divalent hydrocarbon residue derived from a diol having 2-20 carbon atoms, optionally partly replaced by a residue derived from a polyol having 3 or more carbon atoms and 3-10 hydroxy groups, and n=1-100.Type: GrantFiled: March 30, 2000Date of Patent: October 30, 2001Assignee: Great Lakes Chemical CorporationInventors: Willem Bos, Ricardo Henry Breeveld, Marjan Elisabeth Van Der Zanden
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Patent number: 6291619Abstract: A photosensitive composition comprising a polyimide precursor, a photosensitive material having a structure represented by the following formula wherein A1 is an atom belonging to Group VI of the periodic table, in the molecule thereof and/or a photosensitive material having a structure represented by the following formula: wherein A2 is O, S or N atom, in the molecule thereof is suitable for formation of a positive tone pattern excellent in heat resistance, and applicable to electronic devices.Type: GrantFiled: July 29, 1999Date of Patent: September 18, 2001Assignee: Hitachi Chemical Co., LTDInventors: Yasunari Maekawa, Takao Miwa, Takumi Ueno, Yoshiaki Okabe
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Publication number: 20010021727Abstract: Radiation-curable compositions are disclosed which, after cure, are substantially non-yellowing. The compositions are particularly tailored for coating and bundling of optical fibers. A first preferred composition is based on a polyether-type of oligomer diluted with reactive diluents. Isocyanurate structures are included in the composition to raise Tg. A second preferred composition is based on fatty oil comprising (meth)acrylate groups and bisphenol A derivatives comprising (meth)acrylate groups. Photoinitiators can be included to increase cure speed. The formulations do not include material amounts of ingredients which tend to cause yellowing or, in theory, extended conjugation in the cured compositions.Type: ApplicationFiled: March 16, 2001Publication date: September 13, 2001Applicant: DSM N.V.Inventor: David Szum
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Patent number: 6284856Abstract: Rubber articles are coated with a powder-free copolymer coating to provide improved mold release characteristics, improved donning characteristics, and improved tactile feel. The copolymer is formed by the polymerization of a low surface energy monomer, an alkyl acrylate, a hard monomer and a urethane oligomer. The copolymers are preferably formed by a sequential polymerization process.Type: GrantFiled: December 17, 1998Date of Patent: September 4, 2001Assignee: Avery Dennison CorporationInventor: Ivan S. Lee
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Patent number: 6280713Abstract: The invention relates to novel microgel-containing essentially organic solvent nail varnishes. The microgels are particularly acrylic microgels. The invention also relates to the use of these microgels for modifying the physical properties of an essentially organic solvent nail varnish composition, and/or the properties of the film obtained during the application of said composition.Type: GrantFiled: March 28, 1997Date of Patent: August 28, 2001Assignee: LVMH RechercheInventors: Jean-François Tranchant, Henri-Gérard Riess, Alain Meybeck
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Patent number: 6265511Abstract: A method is provided for producing hyperbranched polymers comprising heating a polymerizable reaction charge comprising (a) a monomer mixture comprising 50-99.1% by weight of at least one monoethylenically unsaturated monomer and 0.1-50% by weight of one or more multiethylenically unsaturated monomers and (b) if at least one ethylenically unsaturated monomer of the monomer mixture is not a thermally initiating monomer, a free radical polymerization initiator, to a temperature in the range from about 250° C. to about 400° C. in a continuous reactor which allows mixing of the reactor contents for a residence time of from about 2 minutes to about 60 minutes, provided that if the total amount of multiethylenically unsaturated monomer is less than 3% by weight of the monomer mixture than at least one of said one or more multiethylenically unsaturated monomers must be tri- or greater ethylenically unsaturated. The hyperbranched polymers prepared by this process are also described.Type: GrantFiled: September 3, 1999Date of Patent: July 24, 2001Assignee: S. C. Johnson Commerical Markets, Inc.Inventors: J. David Campbell, Fouad Teymour
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Patent number: 6262211Abstract: Describes a polymerizable organic composition comprising a polyol(allyl carbonate), e.g., diethylene glycol bis(allyl carbonate), and from 0.1 percent to 10 percent by weight, based on the total weight of the composition, of an allyl ester terminated nonaromatic polyester, e.g., diallyl 4-methyl-1,2-cyclohexanedicarboxylate oligomer with 1,4-butane diol. Polymerizates prepared from polymerizable organic compositions of the present invention have a refractive index of less than 1.53, e.g., from 1.49 to 1.50, and are substantially free of defects due to tinting failure.Type: GrantFiled: June 19, 2000Date of Patent: July 17, 2001Assignee: PPG Industries Ohio, Inc.Inventors: Charles C. Clontz, Noriyuki Someki, Robert A. Smith, Michael O. Okoroafor
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Patent number: 6211308Abstract: A method for coating a textile includes applying a substantially water-free, energy-curable, polymer-forming composition to the textile and exposing the textile and composition to a source of energy under such conditions as to generate chemically active sites on the surface of the textile and polymerize the composition. The resulting polymer is grafted onto the textile. Preferably, the energy is derived from electron beam radiation. The composition includes an epoxy oligomer having at least two ethylenically unsaturated moieties, and at least one alkoxylated polyol monomer having at least two ethylenically unsaturated moieties and capable of being copolymerized with the epoxy oligomer. Preferably, the composition also includes a surface active agent capable of rendering the uncured composition dispersible in water. Optionally, the composition can contain a colorant, and photoinitiator. The composition is especially suitable for use as a screen printing ink and coating material for textiles.Type: GrantFiled: August 20, 1998Date of Patent: April 3, 2001Assignee: Henkel CorporationInventor: Marie-Esther Saint Victor
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Patent number: 6201089Abstract: The present invention provides a macroporous hyperhydroxy polymer formed from a monomer mixture of substantially similar fractions of functional acrylic monomers which are combined to form a compound having a polymer skeleton which provides a high number of hydroxyl sites. The result is a material which, when hydrated, has a pore size relative to oxygen and water which provides a high ratio of free water to bound water. When formed into contact lenses, the material exhibits oxygen permeability approaching that of a static layer of tears of equal thickness and water contents of 95% or greater. The polymer is also suitable for use as burn dressings, bandages, soil hydratants, surface treatments, lubricants and coatings, absorbents, transport membranes and the like.Type: GrantFiled: September 10, 1998Date of Patent: March 13, 2001Inventor: James T Carter
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Patent number: 6201088Abstract: Cyanoacrylate adhesives which have increased heat resistance, yet also exhibit good storage stability and acceptable cure times, are obtained by using 2-cyanopentadienoic acid esters in combination with alkylene bis-(2-cyanopentadienoates).Type: GrantFiled: March 30, 1999Date of Patent: March 13, 2001Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Werner Gruber, Yuri Gololobov, Hanns Misiak, Dagmar Behn
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Patent number: 6197907Abstract: A polymer of a low molecular weight having a very little odor is produced by emulsion-polymerizing a radical-polymerizable unsaturated monomer at a temperature of 115° C. or higher in the presence or absence of a chain transfer agent.Type: GrantFiled: April 6, 1999Date of Patent: March 6, 2001Assignee: Nippon Carbide Kogyo Kabushiki KaishaInventors: Eiichi Yoshida, Manabu Ogawa, Hiroshi Masuda, Hiroshi Serizawa
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Patent number: 6194531Abstract: A method for producing a cross-linked polymer manifesting a high absorption capacity and having a small content of soluble component by a convenient and expeditious process with high productivity is provided. An absorbent resin such that disposable diapers and other products incorporating the absorbent resin manifest outstanding qualities and a method for the production of the absorbent resin are proposed.Type: GrantFiled: June 3, 1997Date of Patent: February 27, 2001Assignee: Nippon Shokubai Co., Ltd.Inventors: Takumi Hatsuda, Toru Yanase, Yasuhiro Fujita, Kazuki Kimura