Lactam Monomer Patents (Class 526/264)
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Patent number: 6706356Abstract: Emulsion polymers useful in the preparation of coatings and adhesives, including PSA tapes, labels, and other constructions, are provided. The polymers are characterized by high solids content and low viscosity. A method of making the polymers is also provided. A plurality of acrylic monomers are copolymerized in the presence of a plurality of surfactants, using a split feed, and the resulting emulsion polymers have a bimodal or higher particle-size distribution.Type: GrantFiled: October 4, 2002Date of Patent: March 16, 2004Assignee: Avery Dennison CorporationInventor: Ivan Lee
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Patent number: 6689856Abstract: Water-soluble polymers having a water-soluble backbone and side units having in water a lower critical solution temperature, LCST, the polymers being obtainable by free-radical precipitation polymerization of water-soluble monomers and of macromonomers comprising a unit with an LCST whose heat-induced demixing temperature in aqueous solution is from 5 to 40° C. for a concentration by mass in water of 1% of the said unit. Also described is a process for preparing these polymers by free-radical precipitation polymerization, and aqueous compositions containing these polymers and the use of these polymers and compositions, especially in cosmetics, for the cleansing and/or making up and/or care and/or antisun protection of keratin materials.Type: GrantFiled: May 15, 2002Date of Patent: February 10, 2004Assignee: L'OrealInventor: Florence L'alloret
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Patent number: 6686425Abstract: A high Tg acrylic polymer is provided as well as an epoxy-blend thereof for use as a pressure sensitive adhesive. The high Tg acrylic polymer comprises a copolymer of an alkyl (meth)acrylate monomer whose homopolymer has a Tg>20° C., optionally a C1-30 (meth)acrylate monomer, an nitrogen-containing polar monomer, and a polymerizable epoxy-containing monomer, with the monomers being present in an amount such that the copolymer has a Tg>50° C. When blended with at least one liquid epoxy resin, the resulting mixture exhibits desirable pressure sensitive adhesive properties and may be cured.Type: GrantFiled: June 8, 2001Date of Patent: February 3, 2004Assignee: Adhesives Research, Inc.Inventors: Robert M. Wigdorski, Michael J. Zajackowski, Kevin J. McKinney
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Patent number: 6686432Abstract: A copolymer composition that includes a copolymer comprised of at least 30 mol % of residues having the following alternating residues from a donor monomer and from an acceptor monomer. The copolymer contains at least 15 mol % of an isobutylene type donor monomer and at least 15 mol % of an acrylic monomer as an acceptor monomer. The copolymer is substantially free of maleate or fumarate monomer segments and the copolymer composition is substantially free of Lewis acids and transition metals. Also disclosed is a thermosetting composition that includes a reactant comprising functional groups, a crosslinking agent having at least two functional groups that are reactive with the functional groups first reactant, and a copolymer flow control agent that includes the copolymer composition as well as substrates coated with the thermosetting composition.Type: GrantFiled: February 15, 2002Date of Patent: February 3, 2004Assignee: PPG Industries Ohio, inc.Inventors: Simion Coca, Edward R. Coleridge, Gregory J. McCollum, James B. O'Dwyer, James E. Poole, Victoria A. Trettel
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Patent number: 6682750Abstract: The invention relates to surfactant-free cosmetic, dermatological and pharmaceutical compositions, comprising at least one copolymer consisting essentially of a1) 1 to 50% by weight of the repeat structural unit of the formula (1) where n is an integer from 2 to 9, or a2) 1 to 50% by weight of a mixture of the repeat structural unit of the formula (1) and the repeat structural unit of the formula (2) where R, R1 and R2 may be identical or different and are hydrogen or a linear or branched alkyl or alkenyl group having in each case 1 to 30 carbon atoms and b) 49.99 to 98.99% by weight of the repeat structural unit of the formula (3) in which R3 is hydrogen, methyl or ethyl, Z is (C1-C8)-alkylene, n is an integer from 2 to 9 and X is an ammonium, alkali metal or alkaline earth metal ion and c) 0.01 to 8% by weight of crosslinking structures which originate from monomers having at least two olefinic double bonds.Type: GrantFiled: February 28, 2002Date of Patent: January 27, 2004Assignee: Clariant GmbHInventors: Matthias Löffler, Roman Morschhäuser, Michael Hornung
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Patent number: 6683147Abstract: A method for the production of glass or plastic laminates is provided comprising applying between opposing faces of glass or plastic substrates a pressure sensitive adhesive comprised of a curable blend of an epoxy resin and a polymer comprised of the polymerization reaction product of an alkyl (meth)acrylate monomer whose homopolymer has a Tg>20° C., optionally a C1-30 (meth)acrylate monomer, a nitrogen-containing polar monomer, and a polymerizable epoxy-containing monomer, with the monomers being present in an amount such that the copolymer has a Tg>50° C., and curing the adhesive.Type: GrantFiled: March 18, 2003Date of Patent: January 27, 2004Assignee: Adhesives Research, Inc.Inventors: Robert M. Wigdorski, Michael J. Zajaczkowski, Kevin J. McKinney
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Patent number: 6683144Abstract: Water-soluble or water-swellable crosslinked copolymers consisting essentially of structural units of the formula 1 or a mixture of the structural units of the formula 1 with structural units of the formula 2 and structural units of the formula 3 where R, R1, R2, R3, Z and n are as defined in the description. These copolymers are crosslinked with compounds which contain at least two olefinic double bonds. These crosslinked copolymers are suitable as thickeners, in particular for cosmetic and pharmaceutical preparations.Type: GrantFiled: June 21, 2002Date of Patent: January 27, 2004Assignee: Clariant GmbHInventors: Matthias Löffler, Roman Morschhäuser
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Patent number: 6677422Abstract: A method of making a copolymer composition containing a copolymer, which includes the steps of (a) providing a donor monomer composition that includes an isobutylene type monomer; (b) mixing the donor monomer composition with an ethylenically unsaturated monomer composition that includes one or more ethylenically unsaturated acceptor monomers, and is substantially free of maleate type monomers and fumarate type monomers, and (c) polymerizing the mixture resulting from step (b) in the presence of a free radical polymerization initiator. The polymerization is carried out in the substantial absence of Lewis acids and/or transition metals. The isobutylene type monomer is present at a molar excess of at least 10 mol % based on the molar concentration of monomers in the ethylenically unsaturated monomer composition. The ethylenically unsaturated acceptor monomers are present in an amount of at least 15 mol % of the total monomer composition.Type: GrantFiled: February 15, 2002Date of Patent: January 13, 2004Assignee: PPG Industries Ohio, Inc.Inventors: Simion Coca, Edward R. Coleridge, Gregory J. McCollum, James B. O'Dwyer, James E. Poole, Victoria A. Trettel
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Patent number: 6677417Abstract: The particle size of popcorn polymers is established during the popcorn polymerization by a process in which reaction mixtures forming popcorn polymers and comprising monoethylenically unsaturated monomers and a crosslinking agent are polymerized in the absence of oxygen and polymerization initiators at up to 200° C. and in which the popcorn polymerization is carried out as a precipitation polymerization in water or in the absence of a solvent and the particle size of the popcorn polymers is controlled in the range from 1 &mgr;m to 10 mm by passing an inert gas stream into the reaction mixture, and popcorn polymers having a mean particle diameter of from >400 &mgr;m to 1500 &mgr;m are used as beverage clarifiers, antidiarrheal drugs and disintegration accelerators for tablets.Type: GrantFiled: September 9, 2002Date of Patent: January 13, 2004Assignee: BASF AktiengesellschaftInventors: Helmut Meffert, Werner Bertleff, Michael Kerber, Peter Spang
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Patent number: 6673886Abstract: Optically transparent, high refractive index hydrogels and intraocular lenses fabricated therefrom. The preferred hydrogels have a refractive index of 1.45 or above and a water content of approximately 5 to 30 percent by weight.Type: GrantFiled: October 10, 2001Date of Patent: January 6, 2004Assignee: Bausch & Lomb IncorporatedInventor: David P. Vanderbilt
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Patent number: 6667029Abstract: A stable, aqueous cationic hydrogel of, by weight, 1-50% of a crosslinked cationic copolymer of 5-95% vinylpyrrolidone (VP) and 5-95% 3-dimethylaminopropyl(meth)acrylamide (DMAPMA) monomers, a crosslinking agent in an amount of 0.05-1% of said monomers, and water is described. The hydrogel has a pH of about 10 and a Brookfield viscosity of about 650 (Model DV-II+, RV spindle #3, speed 10 rpm); it can increase its viscosity by up to 40× at a pH of 3-9 and absorb up to 200× its weight of water. The hydrogel also can effectively condition hair even in the presence of an anionic surfactant.Type: GrantFiled: January 12, 2001Date of Patent: December 23, 2003Assignee: ISP Investments Inc.Inventors: Yuanzhen Zhong, Janusz Jachowicz, Philip F. Wolf, Roger L. Mc Mullen, Jr.
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Patent number: 6660819Abstract: The invention relates to a process for producing water-soluble or water-swellable polymer products with low levels of residual monomers using acrylic acid and/or acrylic acid derivatives, which process is characterized by adding a nitrogen compound to the monomer solution to be polymerized and subsequent heating of the polymer product at temperatures of from 120 to 240° C. The polymers produced accordingly are suitable for use as flocculants, dispersants and absorbents.Type: GrantFiled: October 1, 2002Date of Patent: December 9, 2003Assignee: Stockhausen GmbH & Co. KGInventors: Miroslav Chmelir, Kurt Dahmen
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Patent number: 6660800Abstract: A process for making crosslinked polyvinylpyrrolidone (PVP-P) is disclosed. Crosslinker generation, followed by polymerization of NVP, gives a polymer containing up to 4 wt. % of residual NVP. An aqueous mixture of the polymer is then heated in the presence of a protic acid at pH<4 to eliminate NVP. Finally, the PVP-P is neutralized with aqueous alkali metal hydroxide. The process generates a reduced volume of low-toxicity aqueous waste (<20 L/kg PVP-P) and gives PVP-P that meets important product specifications.Type: GrantFiled: October 17, 2002Date of Patent: December 9, 2003Assignee: Arco Chemical Technology, L.P.Inventors: Beth M. Steinmetz, Manish K. Nandi
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Patent number: 6657032Abstract: Optically transparent, high refractive index hydrogels and intraocular lenses fabricated therefrom. The preferred hydrogels have a refractive index of 1.45 or above and a water content of approximately 5 to 30 percent by weight.Type: GrantFiled: October 10, 2001Date of Patent: December 2, 2003Assignee: Bausch & Lomb IncorporatedInventor: David P. Vanderbilt
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Publication number: 20030216532Abstract: The present invention provides a metal composition for making a conductive film and a metal composition for making an electron emission element. The metal composition includes a vinylpyrrolidone-acrylic acid copolymer represented by formula (I).Type: ApplicationFiled: June 17, 2003Publication date: November 20, 2003Applicant: CANON KABUSHIKI KAISHAInventors: Yasuko Tomida, Taku Shimoda
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Patent number: 6649717Abstract: The invention encompasses a composition of vinyl compounds, comprising a) at least one polymerizable compound which has at least one O-vinyl group or one N-vinyl group, and b) at least one ammonium salt of the formula (I) where R is NH2, O− NH4+, C1-C18-alkyl, C6-C18-cycloalkyl, or C7-C18-alkylcycloalkyl. The invention further relates to the use of an ammonium salt of the formula (I) as additive to polymerizable compounds which have at least one O-vinyl group or one N-vinyl group, and also to a process for inhibiting premature polymerization of compositions which comprise polymerizable compounds which have at least one O-vinyl group or one N-vinyl group, which encompasses adding to the compositions an ammonium salt of the formula (I).Type: GrantFiled: August 15, 2001Date of Patent: November 18, 2003Assignee: BASF AktiengesellschaftInventors: Thomas Preiss, Rudolf Erich Lorenz, Sabine Weiguny, Jochem Henkelmann
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Patent number: 6646082Abstract: A new class of polymeric corrosion inhibiting compositions incorporating pendant heterocyclic groups which are surprisingly effective copper corrosion inhibitors are disclosed. The polymers form a protective barrier on metallic components to aqueous systems and remain substantive on metallic surfaces over a wide pH range. Moreover, the polymers are resistant to oxidizing biocides, and are substantially impervious to repeated or prolonged exposure to corrosive agents.Type: GrantFiled: September 4, 2002Date of Patent: November 11, 2003Assignee: Rohm and Haas CompanyInventors: Tirthankar Ghosh, William M. Hann, Barry Weinstein
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Patent number: 6642333Abstract: The present invention provides a vinylpyrrolidone (co)polymer excellent in the color tone and the thermal yellowing resistance despite its low molecular weight. The vinylpyrrolidone (co)polymer, according to the present invention, is a vinylpyrrolidone (co)polymer which has a Hazen value of not more than 30 in the form of 5% aqueous solution and a K value of not more than 60 and is obtained by a process including the step of polymerizing a polymerizable monomer component with an azo compound initiator and/or an organic peroxide initiator, wherein the polymerizable monomer component includes N-vinylpyrrolidone, and wherein the azo compound initiator has a chemical structure as shown by —C(CH3)2—N═N—C(CH3)2—, and wherein the organic peroxide initiator is soluble in water or ethyl alcohol of 25° C. in an amount of not smaller than 3 weight %.Type: GrantFiled: March 24, 2003Date of Patent: November 4, 2003Assignees: Nippon Shokubai Co., Ltd., Dai-ichi Kogyo Seiyaku Co., Ltd.Inventor: Yoshitomo Nakata
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Patent number: 6639034Abstract: A process for preparing nitrogen-containing copolymers useful as dispersant-viscosity improvers for lubricating oil compositions, additive concentrates and lubricating oil compositions are described.Type: GrantFiled: October 23, 2001Date of Patent: October 28, 2003Assignee: The Lubrizol CorporationInventors: Matthew R. Sivik, Charles P. Bryant
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Publication number: 20030191260Abstract: The present invention provides a vinylpyrrolidone (co)polymer excellent in the color tone and the thermal yellowing resistance despite its low molecular weight. The vinylpyrrolidone (co)polymer, according to the present invention, is a vinylpyrrolidone (co)polymer which has a Hazen value of not more than 30 in the form of 5% aqueous solution and a K value of not more than 60 and is obtained by a process including the step of polymerizing a polymerizable monomer component with an azo compound initiator and/or an organic peroxide initiator, wherein the polymerizable monomer component includes N-vinylpyrrolidone, and wherein the azo compound initiator has a chemical structure as shown by —C(CH3)2—N═N—C(CH3)2—, and wherein the organic peroxide initiator is soluble in water or ethyl alcohol of 25° C. in an amount of not smaller than 3 weight %.Type: ApplicationFiled: March 24, 2003Publication date: October 9, 2003Inventor: Yoshitomo Nakata
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Patent number: 6630556Abstract: The present invention provides a metal composition for making a conductive film and a metal composition for making an electron emission element. The metal composition includes a vinylpyrrolidone-acrylic acid copolymer represented by formula (I): wherein x and y are integers. The present invention also provides a method for making an electron emission element having a conductive film for emitting electrons, the method comprising the steps of providing the metal composition containing the vinylpyrrolidone-acrylic acid copolymer represented by formula (I) above on a substrate and baking the metal composition.Type: GrantFiled: April 4, 2002Date of Patent: October 7, 2003Assignee: Canon Kabushiki KaishaInventors: Yasuko Tomida, Taku Shimoda
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Publication number: 20030176602Abstract: A process which allows for the preparation of a substantially uniform hydrogel, such as a polyacrylamide hydrogel, wherein the uniformity of the hydrogel, in terms of the rheological properties, is established by limiting the temperature differential in the reaction process to a very narrow range, such as no more than 5° C. This process allows for polymers novel in their uniformity also by means of being suitably a continuous process. A continuous process for the preparation of a substantially uniform hydrogel, such as a polyacrylamide hydrogel, led to high uniformity by preventing unreacted monomers, such as acrylamide, from surpassing the gel front in the pipe reactor. This was achieved by use of a static mixer. Polymer hydrogels are rendered biocompatible by means of a novel washing process wherein the polymer specific surface area is appropriately set.Type: ApplicationFiled: August 26, 2002Publication date: September 18, 2003Inventors: Richard Schmidt, Robert Lessel, Jens-Erik Sorensen
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Patent number: 6620900Abstract: What is described herein is a pharmaceutical excipient which is a proliferous copolymer of vinyl pyrrolidone and vinyl acetate, having advantageous dissolution and disintegration properties.Type: GrantFiled: February 7, 2002Date of Patent: September 16, 2003Assignee: ISP Investments Inc.Inventors: Edward G. Malawer, James P. Cullen, Chi-San Wu, Laurence Senak, William J. Drefko
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Patent number: 6620521Abstract: What is described herein is a process for preparing a lightly-crosslinked copolymer of (a) vinyl pyrrolidone (VP) and (b) dimethylaminopropyl methacrylamide (DMAPMA) under more reproducible conditions. Suitably the weight ratio of (a):(b) is 50-95:50-5, preferably 80:20. The copolymer has a Brookfield viscosity of 5,000 to 45,000 cps; preferably 10,000 to 30,000 cps, and a haze of <100 NTU; it includes about 0.1 to 0.5 wt. %, preferably 0.2 to 0.4 wt. %, of a cross-linking agent based upon the total weight of the monomers in the copolymer.Type: GrantFiled: September 15, 2000Date of Patent: September 16, 2003Assignee: ISP Investments Inc.Inventors: Yoon Tae Kwak, Stephen L. Kopolow
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Publication number: 20030171515Abstract: A method of making a copolymer composition containing a copolymer, which includes the steps of (a) providing a donor monomer composition that includes an isobutylene type monomer; (b) mixing the donor monomer composition with an ethylenically unsaturated monomer composition that includes one or more ethylenically unsaturated acceptor monomers, and is substantially free of maleate type monomers and fumarate type monomers, and (c) polymerizing the mixture resulting from step (b) in the presence of a free radical polymerization initiator. The polymerization is carried out in the substantial absence of Lewis acids and/or transition metals. The isobutylene type monomer is present at a molar excess of at least 10 mol % based on the molar concentration of monomers in the ethylenically unsaturated monomer composition. The ethylenically unsaturated acceptor monomers are present in an amount of at least 15 mol % of the total monomer composition.Type: ApplicationFiled: February 15, 2002Publication date: September 11, 2003Inventors: Simion Coca, Edward R. Coleridge, Gregory J. McCollum, James B. O'Dwyer, James E. Poole, Victoria A. Trettel
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Patent number: 6616981Abstract: A cationic, water-soluble polymer is disclosed as a substrate treatment resin (i.e., coating) to improve color-fastness and adhesion of an ink-jet ink printed onto the substrate. More particularly, a 50% solids aqueous solution of a cationic acrylic resin is provided as the printed substrate treatment resin. Also disclosed is a method for preparing the invention resin.Type: GrantFiled: August 26, 1998Date of Patent: September 9, 2003Assignee: MeadWestvaco CorporationInventors: G. Frederick Hutter, Michael D. Matzinger
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Patent number: 6613857Abstract: A composition that can be coated as a hot melt or as a high solids content solution comprises, on a percent-by-weight basis, 85-99.7% of at least one acrylic copolymer, 0.1-5% of at least one photoinitiator, and 0.2-10% of at least one multifunctional (meth)acrylate. The composition is readily crosslinked by exposure to ultraviolet light to yield a high-performance acrylic PSA.Type: GrantFiled: July 26, 2002Date of Patent: September 2, 2003Assignee: Avery Dennison CorporationInventors: Carol A. Koch, Liem T. Ang
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Publication number: 20030162924Abstract: A film-forming polymer is prepared by polymerisation of: from 4 to 50 mol % of monomer units A selected from the group consisting of the trialkylsilyl esters of an ethylenically unsaturated carboxylic acid, and mixtures thereof; from 5 to 45 mol % of monomer units B selected from the group consisting of the N-vinyl lactam monomers of general formula CH2═CH—NR′″″—CO—R′|, the N-vinyl amides of general formula CH2═CH—N—CO—R″, the monomers of general formula CH2═CR′″—COO—R″″—NR′″″—CO—R′|, the monomers of general formula CH2═CR′″—COO—R″″—N—CO—R″, 2-pyrrolidone-1-isoprenyl ketone, and mixtures thereof, wherein R′ is a n-alkylidene radical having 2 to 8 carbon atoms, R″ is selected from the group consisting of alkyl, cycloalkyl, aryl, alkylaryl and arylalkyl radicals havType: ApplicationFiled: January 13, 2003Publication date: August 28, 2003Inventors: Marcel Vos, Michel Gillard, Jean-Pol Demaret
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Patent number: 6610412Abstract: A printing fluid composition with an additive which functions as a compatibilizer between the hydrophilic material coating a media surface and the hydrophobic thermal transfer overcoat (TTO) material used in a clear protective TTO overcoat and a method of using such an printing fluid composition to promote adhesion of such TTO material and a digitally printed medium.Type: GrantFiled: September 30, 2002Date of Patent: August 26, 2003Assignee: Hewlett-Packard Development Company, L.P.Inventor: Gary Allan Ungefug
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Publication number: 20030153705Abstract: What is described herein is a pharmaceutical excipient which is a proliferous copolymer of vinyl pyrrolidone and vinyl acetate, having advantageous dissolution and disintegration properties.Type: ApplicationFiled: February 7, 2002Publication date: August 14, 2003Applicant: ISP INVESTMENTS INC.Inventors: Edward G. Malawer, James P. Cullen, Chi-San Wu, Laurence Senak, William J. Drefko
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Patent number: 6599677Abstract: Disclosed are spirocyclic olefin ploymers, methods of preparing spirocyclic olefin polymers, photoresist compositions including spirocyclic olefin resin binders and methods of forming relief images using such photoresist compositions.Type: GrantFiled: April 20, 2002Date of Patent: July 29, 2003Assignee: Shipley Company, L.L.C.Inventors: Charles R. Szmanda, George G. Barclay, Peter Trefonas, III, Wang Yueh
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Publication number: 20030135003Abstract: Copolymers of N-vinylpyrrolidone and alkyl acrylates and/or methacrylates containing 10 to 50 carbon atoms with particular chain distributions can be used as additives for inhibiting wax deposition and improving the pour properties of crude oils.Type: ApplicationFiled: December 19, 2002Publication date: July 17, 2003Inventors: Patrick Gateau, Annie Barbey, Jean Francois Brunelli
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Publication number: 20030125491Abstract: 0050/51242 Establishing the particle size of popcorn polymers during popcorn polymerization and use of popcorn polymers Abstract The particle size of popcorn polymers is established during the popcorn polymerization by a process in which reaction mixtures forming popcorn polymers and comprising monoethylenically unsaturated monomers and a crosslinking agent are polymerized in the absence of oxygen and polymerization initiators at up to 200° C. and in which the popcorn polymerization is carried out as a precipitation polymerization in water or in the absence of a solvent and the particle size of the popcorn polymers is controlled in the range from 1 &mgr;m to 10 mm by passing an inert gas stream into the reaction mixture, and popcorn polymers having a mean particle diameter of from >400 &mgr;m to 1500 &mgr;m are used as beverage clarifiers, antidiarrheal drugs and disintegration accelerators for tablets.Type: ApplicationFiled: September 9, 2002Publication date: July 3, 2003Inventors: Helmut Meffert, Werner Bertleff, Michael Kerber, Peter Spang
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Patent number: 6569975Abstract: The present invention deals with the composition, and application of novel phosphate polymers. The polymeric compounds are useful as emulsifying agents, softening, anti-tangle, and conditioning agents for use in personal care applications due to their outstanding mildness.Type: GrantFiled: June 19, 2000Date of Patent: May 27, 2003Assignee: Colonial Chemical Inc.Inventor: Anthony J. O'Lenick, Jr.
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Patent number: 6569973Abstract: A process of making a vinyl caprolactam (VCL)-based polymer which comprises suspension polymerizing the monomers in aqueous medium in the absence of an added protective colloid, wherein polymer formed at an early stage of the polymerization functions as a dispersing agent to maintain polymer particles suspended in water throughout the polymerization.Type: GrantFiled: July 6, 2001Date of Patent: May 27, 2003Assignee: ISP Investments Inc.Inventors: Jui-Chang Chuang, Jenn S. Shih, Michael A. Drzewinski
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Patent number: 6566473Abstract: A non-aqueous, heterogeneous polymerization process comprises heating a reaction mixture of about 5-70%, preferably 10-50%, by weight, of a vinyl amide monomer in an oil as solvent, and a water-soluble cosolvent, and a free radical initiator, optionally in the presence of a crosslinking agent and/or a surfactant, wherein the oil solvent is present in an amount sufficient to keep the resultant polymer in a stirrable state throughout the polymerization. The polymer reaction product is capable of forming a uniform emulsion or gel upon addition of water thereto.Type: GrantFiled: November 20, 2002Date of Patent: May 20, 2003Assignee: ISP Investments Inc.Inventors: Donald I. Prettypaul, Jenn S. Shih
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Patent number: 6566474Abstract: The present invention deals with the composition, and application of novel phosphate polymers. The polymeric compounds are useful as emulsifying agents, softening, anti-tangle, and conditioning agents for use in personal care applications due to their outstanding mildness.Type: GrantFiled: March 22, 2002Date of Patent: May 20, 2003Assignee: Colonial Chemical IncInventor: Anthony J. O'Lenick, Jr.
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Publication number: 20030078353Abstract: A living polymerization process for preparation of poly(vinyl chloride) (PVC) with controlled molecular weight and molecular weight distribution is described. The polymerization reaction can be initiated by various polyhalocarbon initiators in conjunction with non-metallic reducing single electron transfer reagents as catalysts and accelerated by electron shuttles. The process occurs at room temperature in water or water-organic solvent medium. The polymerization provides PVC with a controlled molecular weight and narrow molecular weight distribution. The halogen containing polymer compositions are useful as, among others, viscosity modifiers, impact modifiers and compatibilizers.Type: ApplicationFiled: June 24, 2002Publication date: April 24, 2003Applicant: UNIVERSITY OF PENNSYLVANIAInventors: Virgil Percec, Anatoliy V. Popov
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Patent number: 6552142Abstract: A description is given of a process for preparing aqueous copolymer dispersions by free-radical polymerization of ethylenically unsaturated monomers in an aqueous solution in which (a) from 10 to 90% by weight of at least one hydrophilic monomer A which has an N-vinyl group and whose polymerisation rate possesses a maximum at pH levels above 7, and (b) from 10 to 90% by weight of at least-one monoethylenically unsaturated hydrophobic monomer B whose polymerisation rate possesses a maximum at pH levels below 7, are copolymerised in the presence of a free-radical initiator system such that in the course of the polymerization the pH falls by from 2 to 5 units. The copolymer dispersions prepared in this way and the copolymers obtainable therefrom are suitable as auxiliaries for pharmaceutical, cosmetic or agrochemical formulations and for preparing paints, coating compositions, sizes, and adhesives.Type: GrantFiled: February 17, 2000Date of Patent: April 22, 2003Assignee: BASF AkeiengesellschaftInventors: Helmut Meffert, Maximilian Angel
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Patent number: 6552141Abstract: The invention relates to a method for producing water-soluble or water-swellable polymerizates with a low residual monomer content from acrylic acid and/or acrylic acid derivatives. The method is characterized by the addition of a nitrogen compound to the monomer solution to be polymerized, an in that the polymerizate is subsequently heated at temperature of 120 to 240° C. The polymerizates produced according to the inventive method are suitable as flocculants, dispersants and absorbers.Type: GrantFiled: June 14, 2000Date of Patent: April 22, 2003Assignee: Stockhausen GmbH & Co. KGInventors: Miroslav Chmelir, Kurt Dahmen
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Patent number: 6541538Abstract: A cationic, water-soluble polymer is disclosed as an ink-jet ink resin to improve color-fastness and adhesion of an ink-jet printing ink. Also disclosed is a method for preparing the invention resin and the ink-jet ink formulation comprising same.Type: GrantFiled: October 7, 1998Date of Patent: April 1, 2003Assignee: Westvaco CorporationInventors: Michael D. Matzinger, G. Frederick Hutter
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Patent number: 6538089Abstract: A physically cross-linked copolymer comprising hydrophobic monomers, hydrogen bonding monomers, and thermosensitive monomers, said thermosensitive monomers having a distinct phase change at its lower critical solution temperature (LCST) when existing as a homopolymer. The physically cross-linked copolymer is used for drug delivery system or for enzyme delivery system. The physically cross-linked copolymer is also used for casting shapes of cavities, for production of miniaturized, detailed micro-parts or micro-machine parts, or for production of thermal switches.Type: GrantFiled: November 20, 2001Date of Patent: March 25, 2003Assignee: Forskarpatent I SYD ABInventors: Babinder Samra, Igor Galaev, Bo Mattiasson
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Patent number: 6538087Abstract: The present invention relates to polymer compositions and methods of polymerizing such compositions. Furthermore, the present invention relates to polymer compositions that are useful in forming waveguides and to methods for making waveguides using such polymer compositions.Type: GrantFiled: July 27, 2001Date of Patent: March 25, 2003Assignee: Promerus, LLCInventors: Xiao-Mei Zhao, Ramakrishna Ravikiran, Phillip S. Neal, Robert A. Shick, Larry F. Rhodes, Andrew Bell
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Publication number: 20030054093Abstract: The present invention provides a metal composition for making a conductive film and a metal composition for making an electron emission element.Type: ApplicationFiled: April 4, 2002Publication date: March 20, 2003Inventors: Yasuko Tomida, Taku Shimoda
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Patent number: 6531563Abstract: Polymerization of a fatty acid or fatty acid derivatives containing conjugated double bonds and alkenes or alkynes containing electron acceptor substituents provides compositions useful as coatings, adhesives, sealants, fillers and the like.Type: GrantFiled: June 10, 1999Date of Patent: March 11, 2003Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Johann Klein, Kai Boege, Wolfgang Klauck
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Patent number: 6531562Abstract: 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: May 14, 2002Date of Patent: March 11, 2003Assignee: Hyundai Electronics Industries Co., Ltd.Inventors: Min Ho Jung, Jae Chang Jung, Geun Su Lee, Ki Ho Baik
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Publication number: 20030045647Abstract: The invention relates to the use of homopolymers and/or water-soluble copolymers of acrylic acid with one or more acrylic, vinyl or allylic monomers as dispersing agents for aqueous suspensions of mineral particles issuing from a mechanical and/or thermal reconcentration step following upon a step of wet grinding without the use of a dispersant and at low concentration in terms of dry matter.Type: ApplicationFiled: June 21, 2002Publication date: March 6, 2003Inventors: Jean-Marc Suau, Christian Jacquemet, Jacques Mongoin
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Patent number: 6528599Abstract: The present invention provides a method of preparing a polymer, which comprises subjecting a monomer containing at least a polar unsaturated compound to anionic polymerization in the presence of a phosphazenium compound represented by the formula (1): (wherein Z− is an anion of an active hydrogen compound in the form where a proton is eliminated from the active hydrogen compound and transferred to the anion; a, b, c and d each represents 1 or 0, but all of them are not simultaneously 0; and R may the same or different and each represents a hydrocarbon group having 1 to 10 carbon atoms, and two R(s) on the same nitrogen atom are optionally combined each other to form a cyclic structure), or in the presence of the phosphazenium compound and the active hydrogen compound. The resulting polymer is characterized by narrow molecular weight distribution.Type: GrantFiled: April 13, 2000Date of Patent: March 4, 2003Assignee: Mitsui Chemicals, Inc.Inventors: Tadahito Nobori, Atsushi Shibahara, Shinji Kiyono, Takaomi Hayashi, Katsuhiko Funaki, Isao Hara, Kazumi Mizutani, Usaji Takaki
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Patent number: 6525156Abstract: Insoluble, only slightly swellable popcorn polymers containing a) from 50 to 99% by weight of styrene and/or at least one monounsaturated styrene derivative, b) from 0.1 to 40% by weight of at least one N-vinyllactam or N-vinylamine and c) from 0.1 to 10% by weight of at least one difunctional crosslinking component, the stated percentages by weight of the individual components a) to c) summing to 100%.Type: GrantFiled: October 24, 2001Date of Patent: February 25, 2003Assignee: BASF AktiengesellschaftInventors: Andreas Ernst, Helmut Meffert, Axel Sanner, Stefan Stein, Folker Ruchatz
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Publication number: 20030036574Abstract: The invention provides ion exchange and electrochemical methods and devices employing anion exchange polymers produced by substantially simultaneous quaternization and polymerization reactions. Anion selective polymers are produced in accordance with the invention by combining, an ethylenic tertiary amine monomer, an alkylating agent having a boiling point temperature of at least about 100° C., and a cross-linking agent in the presence of a polymerizing agent for a time and at a temperature sufficient to form the polymer. The alkylating agent and the cross-linking agent may be the same compound, a cross-linking alkylating agent. The polymers may be produced in the presence of solvents and/or in the presence of diluting monomers which are incorporated into the polymers.Type: ApplicationFiled: June 24, 2002Publication date: February 20, 2003Inventors: Russell J. MacDonald, James A. Lech