Carboxylic Acid Contains Ester Group Patents (Class 526/318)
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Patent number: 6756456Abstract: A process for the polymerization of chloroprene or of a mixture of chloroprene and of up to 20% by weight of a copolymerizable monomer, in aqueous emulsion in the presence of radical initiators, at a temperature of between 5° C. and 70° C., characterized in that the polymerization is carried out in the presence of one or more copolymerizable surfactants in agreement with the formula described below (I) R3—Z—CO—C(R1)═C(R2)—COOM (I) where: R3 is a saturated or unsaturated, linear or branched and aliphatic or aromatic Cn hydrocarbonaceous chain with n from 10 to 20; R1 and R2, which are identical or different, are chosen from H or a C1-C3 alkyl radical; Z is chosen from —O— and —NH—; M is chosen from alkali metals or NH4.Type: GrantFiled: May 14, 2002Date of Patent: June 29, 2004Assignees: Enichem Elastomeres France S.A., Polimeri Europa S.p.A.Inventors: François Sauterey, Françoise Thenoz, Alain Guyot, Romano Lima, Piero Maestri, Francesco Masi
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Patent number: 6743520Abstract: A primer useful in the preparation of an anti-fouling surface contains (I) a copolymer formed from acrylates, free carboxyl group containing monomer and an aromatic sulfonic acid or salt, an acrylic polymeric resin and a cross-linking agent.Type: GrantFiled: December 17, 2002Date of Patent: June 1, 2004Assignee: DuPont Teijin Films US Ltd. PartnershipInventors: Andrew Street, Allan Lovatt, Jane Constance Campbell, Hikaru Takeuchi, Sumio Wakabayashi, Yasuo Fujieda
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Patent number: 6723814Abstract: Membranes made from amphiphilic copolymers are disclosed. The amphiphilic copolymers can be ABA copolymers, where one of A and B is hydrophilic and the other is hydrophobic. The copolymers may be crosslinked to form more stable structures. Crosslinking can be accomplished using a variety of methods, including end to end polymerization of copolymers having terminal unsaturated groups. Molecules such as membrane proteins can be incorporated into the membrane to allow the transport there through of selected components.Type: GrantFiled: May 16, 2001Date of Patent: April 20, 2004Assignee: BioCure, Inc.Inventors: Wolfgang Meier, Corinne Nardin, Mathias Winterhalter
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Patent number: 6720398Abstract: The invention relates to a polymerization process wherein at least one initiator is selected from trioxepan compounds of formula I with R1-3 being independently selected from substituted or unsubstituted hydrocarbyl groups.Type: GrantFiled: August 15, 2001Date of Patent: April 13, 2004Assignee: Akzo Nobel N.V.Inventors: Andreas H. Hogt, John Meijer
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Patent number: 6720390Abstract: Disclosed is a process for crosslinking copolymers of acrylic esters by converting some of the ester groups to ester or amide groups which contain unsaturation, and then sulfur or peroxide curing the resulting polymers. The resulting crosslinked polymers often have excellent vulcanizate properties, and are useful especially in elastomeric form as seals and gasket.Type: GrantFiled: April 5, 2002Date of Patent: April 13, 2004Assignee: E. I. du Pont de Nemours and CompanyInventors: Gordon Mark Cohen, Jerald Rice Harrell, Edward Johson Deyrup
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Patent number: 6716894Abstract: The present invention provides: a water-absorbent resin powder, which includes no fine metallic foreign substance, and in which the deterioration is suppressed; its production process; and uses. The present invention production process for a water-absorbent resin powder comprises the steps of: polymerizing an unsaturated monomer; and drying the resultant crosslinked hydrogel polymer, wherein the water-absorbent resin powder has a crosslinked structure and a mass-average particle diameter of 300 to 600 &mgr;m wherein the ratio of fine particles having particle diameters of not larger than 150 &mgr;m is less than 10 mass % of the water-absorbent resin powder, with the production process being characterized by further comprising a magnetic-flux irradiation step of passing a magnetic field having a magnetic flux density of not less than 0.05 Wb/m2 through the water-absorbent resin powder after the drying step in the production process.Type: GrantFiled: July 3, 2002Date of Patent: April 6, 2004Assignee: Nippon Shokubai Co., Ltd.Inventors: Katsuhiro Kajikawa, Toru Nishioka, Hirotama Fujimaru, Kunihiko Ishizaki
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Publication number: 20040063880Abstract: Branched polymers are prepared by mixing together monofunctional vinylic monomer with from 0.3 to 100% w/w of polyfunctional vinylic monomer and from 0.0001 to 50% w/w of chain transfer agent and thereafter reacting the mixture to form a polymer. The resulting branched polymers are soluble and may be used as component of surface coatings and inks as well as molding resins.Type: ApplicationFiled: September 16, 2003Publication date: April 1, 2004Applicant: LUCITE INTERNATIONAL UK LIMITEDInventors: Michael S. Chisholm, Andrew T. Slark, David Sherrington, Nial O'Brien
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Patent number: 6713583Abstract: Ophthalmic lenses, such as intraocular lenses, include cross-linked polymeric materials having a first constituent derived from a first monomeric component selected from the group consisting of acrylates, methacrylates and mixtures thereof, and a second constituent derived from a second component in an amount effective as a cross linker in the cross-linked polymeric material. The cross-linked polymeric material has branched chain alkyl groups, preferably included with at least a portion of the first monomeric component, in an amount effective to reduce the tackiness of the cross-linked polymeric material relative to a substantially identical cross-linked polymeric material without the branched chain alkyl groups.Type: GrantFiled: February 23, 2001Date of Patent: March 30, 2004Assignee: Advanced Medical Optics, Inc.Inventors: Xiugao Liao, Joseph I. Weinschenk, III
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Patent number: 6703441Abstract: An oriented pressure sensitively adhesive system comprising a pressure sensitive adhesive which is comprised of at least one block copolymer composed at least in part of (meth)acrylic acid derivatives, and at least one block copolymer comprising the unit P(A)-P(B)-P(A), where P(A) independently of one another represent homopolymer blocks or copolymer blocks of monomers A, the polymer blocks P(A) each having a softening temperature in the range from +20° C. to +175° C., P(B) represents a homopolymer block or copolymer block of monomers B, the polymer block P(B) having a softening temperature in the range from −130° C. to +10° C., wherein the refractive index nMD measured in one direction is greater than the refractive index nCD measured in a direction perpendicular to that direction.Type: GrantFiled: July 24, 2002Date of Patent: March 9, 2004Assignee: tesa AktiengesellschaftInventors: Marc Husemann, Thilo Dollase
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Publication number: 20040034183Abstract: A block copolymer is obtained by anionic polymerization, includes two or more polymer blocks A miscible with each other, and at least one (meth)acrylic ester polymer block B immiscible with the polymer blocks A, has a ratio [Mn(Amax)/Mn(Amin)] of 2 or more, wherein the ratio [Mn(Amax)/Mn(Amin)] is the ratio of the largest number average molecular weight [Mn(Amax)] to the smallest number average molecular weight [Mn(Amin)] among the polymer blocks A, has at least one block bonding including polymer block Amax-polymer block B-polymer block Amin, and has a total content of the polymer blocks A ranging from 20 wt % to 45 wt % based on the total mass of the block copolymer.Type: ApplicationFiled: March 27, 2003Publication date: February 19, 2004Inventors: Masaji Kato, Kenichi Hamada, Kazushige Ishiura, Yoshihiro Morishita
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Patent number: 6683145Abstract: A coating composition containing an emulsion polymer prepared with up to about 20% by weight, based on total polymerizable monomers, of addition polymerizable esters of the glycidyl esters of tertiary acids having 9 or more carbon atoms, preferably up to 18 carbon atoms, and particularly having 9 to 11 carbon atoms has improved application properties and produces coatings with better appearance and less water sensitivity. The emulsion polymerization process of the invention produces less coagulum without having to increase the amount of surfactant.Type: GrantFiled: October 26, 2001Date of Patent: January 27, 2004Assignee: BASF CorporationInventor: Sunitha Grandhee
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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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Publication number: 20030225230Abstract: Polymer for antifouling coatings which comprises units corresponding to the following monomers: A) 5 to 100 mol. % of one or more compounds of general formula (I) in which R=H or CH3; X=O or S; R1=Ph(R2)m, —C(H)3−(p+q)(CO—R)3p(COOR3)q, —(CH2)n−(CO)t—COOR3 or optionally substituted thiadiazolyl and thiazolylsulfamyl groups; Ph=phenyl; m=1-3; p=0-3; q=0-3; p+q=1-3; s=0 or 1; t=0 or 1; R2=each independently selected from halogen, —C(O)H, —COOR3, —CH2—COOR3, —O—R3 , —NH COOR3, —NH—CO—R3 and —NH2; R3=II or optionally halogen substituted alkyl, aryl, cycloalkyl, aralkyl groups with 1-10 C atoms; and B) 0 to 95 mol. % of one or more other ethylenically unsaturated compound.Type: ApplicationFiled: December 8, 2000Publication date: December 4, 2003Applicant: Jotun A/SInventors: Thoralv Undrum, Marianne Terland Nilsen, Marit Dahling
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Patent number: 6649721Abstract: Antifoams and/or deaerators are based on oil-in-water emulsions which contain, in the hydrophobic oil phase, at least one compound effective as an antifoam and/or deaerator and, if required, further components, the oil-in-water emulsions containing from 0.01 to 3% by weight of a water-soluble, amphiphilic copolymer having acid groups or of a water-soluble salt thereof as a stabilizer.Type: GrantFiled: February 8, 2001Date of Patent: November 18, 2003Assignee: BASF AktiengesellschaftInventors: Rainer Dyllick-Brenzinger, Günther Glas, Primoz Lorencak, Robert Heger, Günter Oetter
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Patent number: 6646085Abstract: An ambient dry water dispersed coating composition substantially free of volatile organic coalescing solvents, the coating composition containing a polymer film forming binder comprises between 40% and 50% copolymerized non-conjugated, unsaturated fatty acid triglyceride, between 40% and 55% copolymerized ethylenic monomer including styrene, and between 3% and 12% copolymerized maleic anhydride. The film forming copolymer is produced by first reacting maleic anhydride with the fatty acid triglyceride at high temperatures between 140° C. to form a maleinized triglyceride having a pendent maleic anhydride structure. The maleinized triglyceride is then styrenated at temperatures between about 80° C. and 200° C. in the presence of at least 4% peroxide initiator based on the weight of monomers copolymerized to form a styrenated, maleinized fatty acid triglyceride copolymer having anhydride groups.Type: GrantFiled: September 19, 2000Date of Patent: November 11, 2003Assignee: The Glidden CompanyInventors: Gary P. Craun, Kenneth G. Hahn, George P. Rosekelly
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Patent number: 6642334Abstract: Described herein is a pentaalkyldisiloxane containing polymeric surfactant prepared by the copolymerization of an alkoxypolyoxyalkylenyl acrylate and an acrylate containing a pentaalkyldisiloxane group. A method for preparing beaded polyethylene glycol-based resins in silicone oil in the presence of a polymeric surfactant containing a pentaalkyldisiloxane group is also described. The average bead size can be controlled by varying the stirring rate, the polymerization temperature, the amount of surfactant, the type of solvent, and the amount of solvent. The surfactant does not interfere with the polymerization and can be removed together with residual silicone oil by a simple washing procedure. The resins can be used, for example, as a support for solid phase organic synthesis, as a chromatographic resin, as a resin for solid phase MAS-NMR spectroscopy, and as a carrier for drug molecules, various reagents, or scavengers.Type: GrantFiled: July 9, 2001Date of Patent: November 4, 2003Assignee: Carlsberg A/SInventors: Morten Grøtli, Morten Peter Meldal
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Patent number: 6642338Abstract: The present invention is directed to a water-based acrylic emulsion dispersant to be used as a grind resin to incorporate inorganic pigment into a pigment dispersion for a coating composition. The acrylic emulsion dispersant is the reaction product of butyl methacrylate, butyl acrylate, styrene, methyl ether polyethylene glycol methacrylate, polyethylene glycol methacrylate, and polyphosphoric acid. The present invention is also directed to a method of preparing the acrylic emulsion dispersant. In this method, the butyl methacrylate, butyl acrylate, and styrene are combined with water to establish a first reaction blend. Similarly, the methyl ether polyethylene glycol methacrylate and the polyethylene glycol methacrylate are combined with water to establish a second reaction blend. Next, the first and second reaction blends are polymerized to form an intermediate emulsion polymer containing a hydroxyl group from the functionality of the polyethylene glycol methacrylate.Type: GrantFiled: December 22, 2000Date of Patent: November 4, 2003Assignee: BASF CorporationInventors: Swaminathan Ramesh, JoAnn Lanza, Paul J. Harris
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Patent number: 6632895Abstract: The invention relates to a new process for the preparation of functionalized alkoxyamine initiators, new alkoxyamine initiators based on (meth)acrylate which are prepared by this process, and their use for the preparation of polymers.Type: GrantFiled: August 31, 2000Date of Patent: October 14, 2003Assignee: Bayer AktiengesellschaftInventors: Martin Melchiors, Hartwig Höcker, Helmut Keul, Dirk Achten
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Patent number: 6624274Abstract: The present invention provides a polymer composition capable of being cured or crosslinked in the absence or without the use of conventional sulfur and accelerator cure systems. The polymer is formed from olefinically unsaturated monomers and includes at least one conjugated diene monomer. Such polymer includes additional functionality provided by a chelating monomer.Type: GrantFiled: November 9, 2000Date of Patent: September 23, 2003Assignee: Dow Reichhold Specialty Latex LLCInventor: Kevin Grant Suddaby
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Patent number: 6624273Abstract: Non-tacky, base polymers are plasticized into pressure-sensitive adhesives and comprise: a) about 100 parts by weight of a base copolymer having a Tg greater than about 0° C., wherein the base copolymer is formed from and comprises: (1) about 50 to 70% by weight of a high Tg comonomer component, wherein the homopolymer formed from the high Tg comonomer component has a Tg of at least about 20° C.; (2) optionally, up to about 20% by weight based on the total weight of the base copolymer of an acidic comonomer; and (3) about 30 to 50% by weight of one or more low Tg (meth)acrylate comonomer, wherein the Tg homopolymer of the low Tg comonomer is less than about 20° C., and b) about 1 to about 100 parts based on the base copolymer of a nonreactive, non-volatile, non-acrylic-based plasticizing agent.Type: GrantFiled: August 13, 1999Date of Patent: September 23, 2003Assignee: 3M Innovative Properties CompanyInventors: Albert I. Everaerts, Eric B. T. Moonen, Peter A. Stark
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Publication number: 20030176610Abstract: The present invention comprises a method of making a polyethylene/methylane terephthalate copolymer with more desirable properties by the incorporation of a minor percentage of poly(methylene) components. Applicants have found, as demonstrated herein, that a small amount of this poly(methylene terephthalate) incorporated into the poly/ethylene terephthalate) serves to drastically depress the melting point. Such depression of melting points will make the production of fibers from melting polymers less expensive. Applicants have also found that the mixture with the depressed melting point has apparently less adherence to the surfaces of the equipment used to handle such molten polymers.Type: ApplicationFiled: February 12, 2003Publication date: September 18, 2003Inventors: A. George Pinkus, Rajan Hariharan
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Publication number: 20030170563Abstract: The photosensitive polymer includes a first monomer which is norbornene ester having C1 to C12 aliphatic alcohol as a substituent, and a second monomer which is maleic anhydride. A chemically amplified photoresist composition, containing the photosensitive polymer, has an improved etching resistance and adhesion to underlying layer materials, and exhibits wettability to developing solutions.Type: ApplicationFiled: March 10, 2003Publication date: September 11, 2003Inventors: Dong-Won Jung, Sang-Jun Choi, Si-Hyeung Lee, Sook Lee
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Patent number: 6610802Abstract: The present invention relates to a process for synthesis of polymer compositions with reduced catalyst content, wherein ethylenically unsaturated monomers containing less than 0.5 wt % of ethylenically unsaturated monomers with at least one carboxylic group, sulfonic acid group and/or at least one phosphonic acid group relative to the total weight of the ethylenically unsaturated monomers are polymerized by means of initiators containing a transferable group of atoms and of one or more catalysts comprising at least one transition metal in the presence of ligands which can form a coordination compound with the metal catalyst or catalysts and, after the polymerization, the catalyst contained in the polymer is at least partly separated. For this purpose, the polymer composition is filtered, after the polymerization, in the presence of at least one filter aid which contains at least 0.Type: GrantFiled: May 29, 2001Date of Patent: August 26, 2003Assignee: RohMax Additives GmbHInventors: Sebastian Roos, Boris Eisenberg, Carolin Harpe
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Patent number: 6610219Abstract: Functional optical materials for optical systems that are typically useful in optical waveguides, optical switching systems, optical modulators, optical computing systems and the like. Included are polymer systems and electrooptical chromophores. Polymers are thermoplastic and/or thermosetting polymers and are blended or co-polymerized with the electrooptic chromophore. The thermoplastic or thermosetting polymer selected from an acrylic/methacrylic, polyester, polyurethane, polyimide, polyamide, epoxy resin, or hybrid (organic-inorganic) or nanocomposite polyester polymer. The electrooptic chromophore is selected from a substituted aniline, substituted azobenzene, substituted stilbene, or substituted imine. Methods for improving adhesion promotion for the various novel materials are also provided.Type: GrantFiled: February 6, 2001Date of Patent: August 26, 2003Assignee: Battelle Memorial InstituteInventors: Vincent D. McGinniss, Steven M. Risser
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Publication number: 20030153709Abstract: The process for the continuous preparation of homopolymers or copolymers by free-impinging-jet micromixing of fluids formed (1) of monomer(s) and (2) of an initiator system consists in micromixing the said fluids (1) and (2) and in recovering the mixture of these fluids in the form of a resultant jet Jr, originating from the point of impingement (I), the micromixture being obtained by:Type: ApplicationFiled: December 31, 2002Publication date: August 14, 2003Applicant: ATOFINAInventors: Xavier Marcarian, Christophe Navarro, Laurent Falk, Fernand Pla
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Patent number: 6590052Abstract: The process for the continuous preparation of homopolymers or copolymers by free-impinging-jet micromixing of fluids formed (1) of monomer(s) and (2) of an initiator system consists in micromixing the said fluids (1) and (2) and in recovering the mixture of these fluids in the form of a resultant jet Jr, originating from the point of impingement (I).Type: GrantFiled: July 25, 2001Date of Patent: July 8, 2003Assignee: AtofinaInventors: Xavier Marcarian, Christophe Navarro, Laurent Falk, Fernand Pla
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Publication number: 20030124074Abstract: Linear block ethylenic copolymer, comprising:Type: ApplicationFiled: November 27, 2002Publication date: July 3, 2003Applicant: L'OrealInventors: Nathalie Mougin, Bertrand Lion
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Publication number: 20030114582Abstract: An oriented pressure sensitively adhesive system comprising a pressure sensitive adhesive which is comprised of at least one block copolymer composed at least in part of (meth)acrylic acid derivatives, and at least one block copolymer comprising the unit P(A)-P(B)-P(A), whereType: ApplicationFiled: July 24, 2002Publication date: June 19, 2003Inventors: Marc Husemann, Thilo Dollase
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Publication number: 20030114622Abstract: The present invention relates to a method of manufacturing a cured resin fine powder having spherical particles of particle diameter 10 &mgr;m or less, by curing at ambient temperature or with heating, in the presence of a curing agent and if necessary an accelerator, an O/W type aqueous thermosetting resin dispersion that has been obtained by uniformly dispersing a liquid radical polymerization type thermosetting resin in an aqueous phase, and then removing water, washing if desired, and drying.Type: ApplicationFiled: October 1, 2002Publication date: June 19, 2003Inventor: Keizo Masawaki
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Patent number: 6566469Abstract: A method for polymerization of substituted ethylene monomers in an enzyme-mediated process is disclosed. The reaction proceeds under mild conditions with a wide variety of monomers, and is capable of producing stereoregular polymers. In certain embodiments, no organic solvent is necessary.Type: GrantFiled: June 22, 2000Date of Patent: May 20, 2003Assignees: Trustees of Tufts College, Rohm & Haas Company, Polytechnic Institute of New YorkInventors: David Kaplan, Graham Swift, Richard A. Gross, Bhanu Kalra
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Patent number: 6566549Abstract: A continuous process for oligomers which do not contain, as polymerized units, carboxylic acid-containing monomers and their salts, including the steps of: (1) forming a reaction mixture, substantially free of carboxylic acid-containing monomers and their salts, containing: (i) 0.5 to 99.95% by weight of the reaction mixture of at least one ethylenically unsaturated monomer; and (ii) 0.05 to 25% by weight, based on the weight of the ethylenically unsaturated monomer, of at least one free-radical initiator; and (2) continuously passing the reaction mixture through a heated zone wherein the reaction mixture is maintained at a temperature of at least 150° C. and a pressure of at least 30 bars for from 0.1 seconds to 4 minutes to form terminally-unsaturated oligomers. In addition, processes for forming oligomers of vinyl acetate and oligomers of vinyl alcohol are disclosed. Mixtures of fully saturated and terminally unsaturated oligomers are also disclosed.Type: GrantFiled: December 15, 1998Date of Patent: May 20, 2003Assignee: Rohm and Haas CompanyInventors: Gary David Greenblatt, Barry Clifford Lange, Michael Damian Bowe, Richard Foster Merritt, Robert Wilczynski, Gary Robert Larson, Lori Marie Petrovich, David William Whitman
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Patent number: 6555637Abstract: In anionic polymerization using an anionic polymerization initiator, a tertiary organoaluminum compound (A) having in the molecule thereof a chemical structure represented by a general formula: Al—O—Ar wherein Ar represents an aromatic ring, and at least one Lewis base (B) selected from the group consisting of a tertiary polyamine compound, are caused to be present in the polymerization system. In this way, the polar monomer can be polymerized with a high polymerization initiation efficiency and a high living polymerization property and at a high polymerization rate even if the used polymerization initiator is suitable for industrial use, and a relatively mild cooling condition or a temperature condition near room temperature is adopted as a polymerization temperature condition.Type: GrantFiled: August 15, 2000Date of Patent: April 29, 2003Assignee: Kuraray Co., Ltd.Inventors: Kenichi Hamada, Kazushige Ishiura, Masaji Kato, Sachie Yaginuma
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Patent number: 6548589Abstract: A multipurpose cement dispersing, shrinkage compensating and anticorrosive polymer and an admixture comprising said polymer, which improve the workability and the early strength development of fresh concrete, are described. Said polymer is an ester- and amid group-modified acrylic polymer, obtainable by aqueous solution radical copolymerization of (1) acrylic or methacrylic acid with (2) an acrylic or methacrylic methoxy-polyalkyleneglycolester monomer having 2 to 300 moles of an oxyalkylene group each having 2 to 3 carbon atoms, (3) optionally an acrylic or methacrylic methoxy-polyalkyleneglycolamide monomer having 2 to 300 moles of an oxyalkylene group each having 2 to 3 carbon atoms, (4) an acrylic or methacrylic ester of a tertiary aminoalkanol and (5) optionally an acrylic amide of a primary or secondary aliphatic, cycloaliphatic or aromatic amine.Type: GrantFiled: March 22, 2001Date of Patent: April 15, 2003Assignee: Sika Schweiz AGInventors: Jürg Widmer, Ueli Sulser, Ulf Velten, Irene Schober, Theodor A. Bürge
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Patent number: 6537659Abstract: Thermosettable PSA compositions of the invention comprise a major proportion of the adhesive component of at least one acidic polymer and at least one amine-containing compound capable of reacting with acidic functional groups on the acidic polymer to cure the thermosettable PSA composition into a thermoset adhesive. The thermosettable PSA compositions are particularly useful for forming semi-structural or structural bonds. Thermoset adhesives therefrom and methods of forming the thermoset adhesives are also disclosed.Type: GrantFiled: December 20, 2000Date of Patent: March 25, 2003Assignee: 3M Innovative Properties CompanyInventors: Naimul Karim, Ashish Kumar Khandpur, Dmitriy Salnikov
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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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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: 6518383Abstract: This invention relates to a process for the synthesis of addition polymers containing branches upon branches and having a polymerizable olefin end group by a convenient one-pot polymerization of selected vinyl monomers with chain polymerization initiators and a method to provide olefinic end groups by chain termination agents; and polymers produced thereby characterized by branch-on-branch structure and lower inherent viscosity than heretofore possible.Type: GrantFiled: January 14, 2000Date of Patent: February 11, 2003Assignee: E.I. du Pont de Nemours and CompanyInventor: Lech Wilczek
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Patent number: 6518374Abstract: Free radical polymerizations immediately terminated by a process comprising the addition of an inhibitor solution which contains phenothiazine and at least 50% (w/w) N-alkylpyrrolidone to a system undergoing free radical polymerization, wherein the inhibitor solution also contains p-methoxyphenol (MEHQ).Type: GrantFiled: October 29, 2001Date of Patent: February 11, 2003Assignee: BASF AktiengesellschaftInventors: Heinrich Aichinger, Gerhard Nestler, Jürgen Schröder
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Publication number: 20030012883Abstract: The invention relates to compositions for reducing the swelling of wood in the presence of water, comprising:Type: ApplicationFiled: April 7, 2000Publication date: January 16, 2003Inventors: Bing Yu, Willie Lau
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Publication number: 20020193542Abstract: The photosensitive polymer includes a first monomer which is norbornene ester having C1 to C12 aliphatic alcohol as a substituent, and a second monomer which is maleic anhydride. A chemically amplified photoresist composition, containing the photosensitive polymer, has an improved etching resistance and adhesion to underlying layer materials, and exhibits wettability to developing solutions.Type: ApplicationFiled: August 15, 2002Publication date: December 19, 2002Inventors: Dong-Won Jung, Sang-Jun Choi, Si-Hyeung Lee, Sook Lee
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Publication number: 20020177681Abstract: Polyester based polycarbonate (meth)acrylates prepared by the reaction of a alkylene or arylene diol polycarbonate with an anhydride or its dicarboxylic acid to form a carboxyl terminated diester, reacting the diester with a diglycidyl ether and an acrylic or methacrylic acid to form an acrylate terminate polymer which is useful for radiation cured coatings which have superior adhesion and reverse impact strength when applied to plastic substrates.Type: ApplicationFiled: April 13, 2001Publication date: November 28, 2002Inventors: Mingxin Fan, Gary Ceska, James Horgan, Robert Adams, William Schaeffer, Josh Oliver
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Patent number: 6486283Abstract: An organic anti-reflective polymer having the following Formula 1, its preparation method, an anti-reflective coating composition comprising the said organic anti-reflective polymer and a preparation method of an anti-reflective coating made therefrom. The anti-reflective coating comprising the polymer eliminates standing waves caused by the optical properties of lower layers on the wafer and by the thickness changes of the photoresist, prevents back reflection and CD alteration caused by the diffracted and reflected light from such lower layers. Such advantages enable the formation of stable ultrafine patterns suitable for 64M, 256M, 1G, 4G, and 16G DRAM semiconductor devices, improves production yields and enables control of the k value. Further, it is also possible to prevent undercutting due to an unbalanced acidity after finishing the coating.Type: GrantFiled: June 25, 2001Date of Patent: November 26, 2002Assignee: Hynix Semiconductor Inc.Inventors: Sung-eun Hong, Min-ho Jung, Jae-chang Jung, Geun-su Lee, Ki-ho Baik
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Patent number: 6476136Abstract: The present invention relates generally to compositions prepared by polymerizing vinyl neo C9-C13 carboxylic acid esters. Such compositions include latex compositions that are formed by polymerizing vinyl neo C9-C13 carboxylic acid esters with ethylenically unsaturated comonomers such as acrylic acid esters and vinyl acetate. The polymer compositions of the present invention are particularly suitable for use in applications such as architectural (both interior and exterior), direct-to-metal and marine coatings and transportation maintenance applications.Type: GrantFiled: February 6, 2001Date of Patent: November 5, 2002Assignee: ExxonMobil Chemical Patents Inc.Inventors: Vijay Swarup, Peter S. Ellis, Henry W. Yang, Oliver W. Smith, Thomas H. Henry
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Patent number: 6469095Abstract: Thermoplastic molding compositions comprise A) from 10 to 90% by weight of at least one thermoplastic polymer, B) from 1 to 20% by weight of a polyethylene which contains carboxyl groups and has a mean molecular weight Mn (number average) of from 24,000 to 100,000 g/mol, C) from 5 to 60% by weight of a halogen-free flame retardant D) from 0 to 70% by weight of other additives and processing aids, where the total of the percentages by weight of components A) to D) is 100%Type: GrantFiled: June 14, 1999Date of Patent: October 22, 2002Assignee: BASF AktiengesellschaftInventors: Brigitte Gareiss, Andreas Deckers, Martin Klatt, Wilhelm Weber
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Patent number: 6462157Abstract: Antinoise and flame-resistant barriers formed by supports and by sheets fixed thereon, characterized by the fact that the sheets consist of a methylmethacrylate copolymer and acrylic acid comprised between 1 and 20% by weight.Type: GrantFiled: March 10, 1998Date of Patent: October 8, 2002Assignee: AtofinaInventors: Alberto Luca Stasi, Fabio Giberti, Cristiano De Marco
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Patent number: 6462158Abstract: Disclosed herein are polymerizable compounds represented by the following formula (1): wherein one of R1 and R2 represents an alkyl group, which has 1 to 4 carbon atoms and is other than a tert-butyl group, and the other represents a hydrogen atom or an alkyl group which has 1 to 4 carbon atoms and is other than a tert-butyl group, R3 to R9 each independently represent a hydrogen atom, a silyl group, a cyano group, a hydroxyl group, a halogen atom or a monovalent nonpolymerizable organic substituent group, and A represents a polymerizable group having a carbon-carbon double bond; polymers obtained by singly polymerizing the polymerizable compounds or copolymerizing them with copolymerizable compounds; and resist compositions comprising the polymers. These polymers are useful as base polymers for resist materials for an exposure light source of a short wavelength.Type: GrantFiled: August 16, 2000Date of Patent: October 8, 2002Assignee: Maruzen Petrochemical Co., Ltd.Inventors: Takuya Miwa, Nobuyuki Oka, Masao Kaneko
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Publication number: 20020137857Abstract: The invention relates to a curable composition and a process of preparing the curable composition. The process comprises (a) forming an oligomer from oligomerization of a mixture of a monomer A having a functional group and a monomer B at a temperature in the range of from 150° C. to 650° C., a pressure in the range of from 3 MPa to 35 MPa and the pressure is high enough to maintain the reaction mixture in a fluid state and a residence time in the range of from 0.1 second to 4 minutes; and (b) reacting a modifier having at least one reactive moiety with the oligomer through a reaction between the reactive moiety of the modifier and the functional group of the monomer A in the oligomer, and the modifier further comprises a curable group.Type: ApplicationFiled: April 13, 1999Publication date: September 26, 2002Inventors: BARRY CLIFFORD LANGE, MICHAEL DAMIAN BOWE, RICHARD FOSTER MERRITT, ROBERT WILCZYNSKI, WARD THOMAS BROWN, RONALD SCOTT BECKLEY
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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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Publication number: 20020128416Abstract: The process for the continuous preparation of homopolymers or copolymers by free-impinging-jet micromixing of fluids formed (1) of monomer(s) and (2) of an initiator system consists in micromixing the said fluids (1) and (2) and in recovering the mixture of these fluids in the form of a resultant jet Jr, originating from the point of impingement (I), the micromixture being obtained by:Type: ApplicationFiled: July 25, 2001Publication date: September 12, 2002Applicant: ATOFINAInventors: Xavier Marcarian, Christophe Navarro, Laurent Falk, Fernand Pla
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Patent number: 6447926Abstract: The present invention provides paper coating slips comprising a low-crosslink copolymer as their binder.Type: GrantFiled: February 1, 2001Date of Patent: September 10, 2002Assignee: BASF AktiengesellschaftInventors: Jürgen Schmidt-Thümmes, Thomas Wirth, Stefan Kirsch