From Halogen Containing Monomer Having At Least Three Carbon Atoms Patents (Class 526/291)
  • Patent number: 7135132
    Abstract: The present invention relates to a photochromic fluorescent polymer and a preparation method thereof, and more particularly, to a photochromic fluorescent polymer having bonds between diarylethenes and aryethene-vinylene precursors with a weight average molecular weight of 500 to 1,000,000, which exhibits highly improved photochromic and fluorescent characteristics compared to conventional photochromic fluorescent materials and excellent solubility to organic solvents, thus being applicable for photofunctional materials and information processing device such as optical recording, optical switches, non-destructive optical recording materials.
    Type: Grant
    Filed: April 28, 2003
    Date of Patent: November 14, 2006
    Assignee: Korea Research Institute Of Chemical Technology
    Inventors: Eunkyoung Kim, Hyunil Cho
  • Patent number: 7056413
    Abstract: An acrylate copolymer for use in pressure-sensitive adhesives, particularly suitable for the bonding of low-energy surfaces, is composed of the following monomer components: A) 60 to 95% by weight of one or more monomers selected from alkyl acrylates and alkyl methacrylates, the alkyl containing 1 to 10 carbon atoms; B) 5 to 15% by weight of one or more monomers selected from esters of (meth)acrylic acid with a polyethylene glycol derivative having from 2 to 4 ethylene glycol units, the (meth)acrylic esters being free from hydroxyl groups; and C) 1 to 35% by weight of a mixture of at least two vinyl compounds selected from vinyl compounds which contain one or more of the following functional groups: free carbonyl groups, free carboxyl groups, groups having one or more active hydrogen atoms.
    Type: Grant
    Filed: April 25, 2003
    Date of Patent: June 6, 2006
    Assignee: Lohmann GmbH & Co. KG
    Inventors: Dirk Caspari, Frank Kura, Mario Schutte, Kurt Seeger
  • Patent number: 7041762
    Abstract: The present invention relates to a polyvalent imprinted polymer useful in medicine and biotechnology and to a process for the preparation thereof. More particularly it relates to the said polymer of formula (1) herein below wherein R is H, CH3, C2H5, C6H5, R1is H, CH3, C2H5, C6H5; R2 is H, CH3, C2H5, C6H5, X is based on 4-Amino Butyric Acid (4-ABa), 6-Amino Caproic Acid (6-ACA), 8-Amino Octanoic Acid (8-AOA), 10-Amino Decanoic Acid (10-ADA), 11-Amino Undecanoic Acid (11-ADA), n is from 3 to 50, L is OH, NH2, OCH3, NH—CH—(CH3)2, Cl, OCH2, CH?CH2, O—CH?CH2; and Y is N-Acetyl Glucosamine (NAG), mannose, galactose, sialic acid, fructose, ribulose, erythrolose, xylulose, psicose, sorbose tagaose, glucopyranose, fructofuranose, deoxyribose, galactosamine, sucrose, lactose, isomaltose, maltose, cellobiose, cellulose and amylose; Z is based on chain terminating agent such as Mercapto Ethanol, Mercapto, Mercapto Propanol, Mercaptoethylamine HCl.
    Type: Grant
    Filed: March 31, 2003
    Date of Patent: May 9, 2006
    Assignee: Council of Scientific and Industrial Research
    Inventors: Mohan Gopalkrishna Kulkarni, Jayant Jagannath Khandare
  • Patent number: 7037991
    Abstract: Copolymers formed by TFE and FMVE containing FMVE in percent by moles from 2.5% to 8%; the % TFE moles being the complement to 100% of the FMVE moles.
    Type: Grant
    Filed: July 15, 2003
    Date of Patent: May 2, 2006
    Assignee: Solvay Solexis S.p.A.
    Inventors: Pasqua Colaianna, Giulio Brinati, Vincenzo Arcella
  • Patent number: 6969749
    Abstract: Initiators for atom transfer radical polymerizations are described. The initiators have an azlactone or ring-opened azlactone moiety to provide telechelic (co)polymers.
    Type: Grant
    Filed: September 29, 2004
    Date of Patent: November 29, 2005
    Assignee: 3M Innovative Properties Company
    Inventors: Kevin M. Lewandowski, Duane D. Fansler, Babu N. Gaddam, Steven M. Heilmann, Larry R. Krepski, Stephen B. Roscoe, Michael S. Wendland
  • Patent number: 6967232
    Abstract: A high-molecular gelling agent precursor for an electrolyte comprises a copolymer formed of (A) a hydrophobic monomer having a hydrophobic group, which forms a carboxyl group upon saponification, and (B) a hydrophobic polyfunctional monomer. The saponification product of the copolymer has property to gel the electrolyte. A high-molecular gelling agent for the electrolyte is produced by saponifying the precursor with a saponifying agent selected from the group consisting of acids and alkalis while using a reaction medium selected from the group consisting of water and hydrophobic organic solvents.
    Type: Grant
    Filed: October 1, 2002
    Date of Patent: November 22, 2005
    Assignee: Dainichiseika Color & Chemicals Mfg., Co., Ltd.
    Inventors: Minoru Takizawa, Seiji Doi, Chiaki Iwakura, Hiroshi Inoue, Naoji Furukawa, Shinji Nohara, Yoshifumi Sugito, Naomi Oguma, Sachio Yoshikawa, Michiei Nakamura
  • Patent number: 6903169
    Abstract: A process for polymerizing unsaturated monomers is disclosed. The process comprises polymerizing, in the presence of a late transition metal catalyst (LTMC), a variety of unsaturated monomers which are traditionally, some of which are exclusively, made by free radical polymerizations. The LTMC polymerization provides the polymer with improved properties such as no free radical residue and narrow molecular weight distribution.
    Type: Grant
    Filed: December 30, 2003
    Date of Patent: June 7, 2005
    Assignee: Equistar Chemicals, LP
    Inventors: Jia-Chu Liu, Shao-Hua Guo
  • Patent number: 6897278
    Abstract: 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: Grant
    Filed: February 4, 2004
    Date of Patent: May 24, 2005
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Lech Wilczek
  • Patent number: 6891007
    Abstract: This invention relates to a process for polymerizing polar substituted norbornenes and/or cycloalkenes, optionally, in the presence of another unsaturated compound. The method is characterized in that the polymerization is carried out in the presence of one or more tungsten carbine complexes.
    Type: Grant
    Filed: March 19, 2001
    Date of Patent: May 10, 2005
    Assignee: Bayer Aktiengesellschaft
    Inventors: Karl-Heinz Alexsander Ostoja Starzewski, Karin Weiss, Martin Olaf Thüring
  • Patent number: 6858696
    Abstract: The invention concerns a method for preparing by thermal activation of hybrid silicone and organic polymers comprising the motifs RxUySiO[4?(x+y)]/2 (I) wherein: x is equal to 0, 1, 2 or 3, y is equal to 0, 1, 2 or 3 with 2?(x+y)?3 and y is different from 0 for at least one of the hybrid copolymer motifs; and the symbols U, identical or different, represent organic polymer units.
    Type: Grant
    Filed: July 25, 2001
    Date of Patent: February 22, 2005
    Assignee: Rhodia Chimie
    Inventors: Mathias Destarac, Gérard Mignani, Samir Zard, Béatrice Sire, Chakib Kalai
  • Patent number: 6855762
    Abstract: A process for the preparation of water-soluble polymers of esters of ethylenically unsaturated carboxylic acids and polyalkylene glycols by azeotropic esterification, in the presence of organic solvents which form an azeotrope with water, of ethylenically unsaturated carboxylic acids with polyalkylene oxides which are capped at one end by end groups, to a degree of at least 85 wt %, followed by free-radical polymerization of the resulting esters optionally together with other ethylenically unsaturated monomers, in aqueous medium, wherein the organic solvents are removed by azeotropic distillation from the reaction mixture during polymerization and the water that is removed by distillation is recycled or the quantity of water removed by distillation from the reaction mixture is replaced by a feed of fresh water.
    Type: Grant
    Filed: November 16, 2000
    Date of Patent: February 15, 2005
    Assignee: BASF Aktiengesellschaft
    Inventors: Matthias Kroner, Karl-Heinz Büchner, Johannes Perner, Hans-Jürgen Raubenheimer, Dieter Faul
  • Patent number: 6855747
    Abstract: There is disclosed a method of easily producing a long-lived ion sensitive film having excellent durability and used in an ion sensor. The method starts with preparing a monomer mixture consisting chiefly of monomer units including a functional group and a second group of bonded atoms. The functional group has a function of identifying a certain chemical substance. The second group can become an active species that induces a polymerization or bridging reaction by being irradiated with an electron beam or radiation. Then, the monomer mixture is irradiated with the electron beam or radiation in a low energy range. Thus, the monomer mixture is polymerized.
    Type: Grant
    Filed: December 23, 2002
    Date of Patent: February 15, 2005
    Assignees: JEOL Ltd., JEOL Engineering Co., Ltd.
    Inventors: Tadashi Kawai, Hirohisa Yoshida, Tokuo Mizuno, Atsuro Tonomura, Naoki Aota
  • Patent number: 6852817
    Abstract: This invention provides a pigment dispersing resin which is a copolymer of: (A) sulfonic group-containing polymerizable unsaturated monomer, (B) polyoxyalkylene chain-containing nonionic polymerizable unsaturated monomer, (C) (C-1) (meth)acrylic acid ester type polymerizable monomer having two tertiary alkyl groups per molecule and/or (C-2) (meth)acrylic acid ester type polymerizable monomer having one tertiary alkyl group and one secondary hydroxyl group per molecule, and (D) other ethylenically unsaturated monomer; and also provides water-based pigment dispersion which comprises said pigment dispersing resin, pigment, aqueous medium and, as circumstances may demand, basic neutralizer and/or dispersing agent as well.
    Type: Grant
    Filed: March 28, 2003
    Date of Patent: February 8, 2005
    Assignee: Kansai Paint Co., Ltd.
    Inventors: Yoshiyuki Yukawa, Yuko Hoshida, Isao Kamimori
  • Patent number: 6849703
    Abstract: Water-soluble polymers of esters made from acrylic acid and alkylpolyalkylene glycols, obtainable by azeotropic esterification of a mixture of acrylic acid and alkylpolyalkylene glycol in a molar ratio of from 2 to 3:1 in the presence of at least 85% by weight, based on the alkylpolyalkylene glycol, of an organic solvent which forms an azeotrope with water, followed by free-radical polymerization, in an aqueous medium, of the mixture obtained during the esterification, where the organic solvent is distilled off azeotropically from the reaction mixture during the polymerization, and the water removed by distillation is returned to the mixture or replaced by a feed of fresh water, and preparation and use of these polymers as an additive to cementitious systems.
    Type: Grant
    Filed: May 2, 2002
    Date of Patent: February 1, 2005
    Assignee: BASF Aktiengesellschaft
    Inventors: Matthias Kroner, Karl-Heinz Büchner, Gregor Brodt
  • Patent number: 6846888
    Abstract: Thermally stabilized initiator compositions comprising: (a) at least one dialkyl peroxydicarbonate, and (b) a stabilizing effective amount of a compound of Structure I: wherein R1 and R2 are as defined in the summary of the invention section, processes for their preparation and use are disclosed.
    Type: Grant
    Filed: March 21, 2002
    Date of Patent: January 25, 2005
    Assignee: ATOFINA Chemicals, Inc.
    Inventors: Barbara L. Stainbrook, Michael S. Mendolia, Terry N. Myers, Peter A. Callais, Joseph M. Brennan
  • Patent number: 6825302
    Abstract: This invention is based upon the unexpected discovery that the reactivity of the most important monomers commonly used in synthesizing tackifier resins with aluminum halide catalysts can be enhanced by conducting the polymerization in the presence of an allylic halide. For instance, the conversions of 2-methyl-2-butene, cis-piperylene, and cyclopentene that are attained in polymerizations that are catalyzed with aluminum halide catalysts are increased by conducting the polymerization in the presence of an allylic halide, such as allyl chloride. Increased monomer conversion is of great commercial importance because it leads to an increased level of efficiency and reactor capacity.
    Type: Grant
    Filed: August 26, 2003
    Date of Patent: November 30, 2004
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Kirkwood Storer Cottman, Ching-Chian Chang
  • Patent number: 6825308
    Abstract: The present invention relates to copolymers for applications in medicine and biotechnology and preparation thereof. Copolymers comprises polyvalent N-Acetyl Glucosamine(NAG) in polyvalent form and bind more efficiently to lysozyme than NAG itself. The copolymers exhibit effective inhibition even at very low ligand concentrations. The copolymers could be used for prevention and treatment of bacterial and viral infections. Moreover, these copolymers form are stimuli sensitive polymers and can be used for the recovery of biomolecules. The methodology can be extended to other ligands such as sialic acid and used for preventing influenza and/or rotavirus infections. It also provides a method for the synthesis of copolymers wherein polymers comprising sequences of specific ligands are required.
    Type: Grant
    Filed: October 29, 2003
    Date of Patent: November 30, 2004
    Assignee: Council of Scientific and Industrial Research
    Inventors: Mohan Gopalkrishna Kulkarni, Jayant Jagannath Khandare
  • Patent number: 6822062
    Abstract: Methods for preparing olefin polymers, and catalysts for preparing olefin polymers are disclosed. The polymers can be prepared by contacting the corresponding monomers with a Group 8-10 transition metal catalyst and a solid support. The polymers are suitable for processing in conventional extrusion processes, and can be formed into high barrier sheets or films, or low molecular weight resins for use in synthetic waxes in wax coatings or as emulsions.
    Type: Grant
    Filed: October 30, 2001
    Date of Patent: November 23, 2004
    Assignee: Eastman Chemical Company
    Inventors: Peter Borden Mackenzie, Leslie Shane Moody, Christopher Moore Killian, Gino Georges Lavoie
  • Patent number: 6822061
    Abstract: Improved well cement additives, compositions and methods of using the compositions are provided. The well cement additives are basically comprised of a first monomer selected from the group of 2-acrylamido-2-methylpropane sulfonic acid, 2-allyloxy-2-hydroxy-1-propane sulfonic acid and vinylsulfonic acid, a second monomer selected from the group of N,N-dimethylacrylamide, acrylamide, N-vinylpyrrolidone, N-vinylacetamide and acrylonitrile and a third monomer selected from the group of C6 to C22 dimethylaminopropylmethacrylamide bromide, chloride and iodide and C6 to C22 dimethylaminoethylmethacrylate bromide, chloride and iodide.
    Type: Grant
    Filed: October 28, 2002
    Date of Patent: November 23, 2004
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Larry S. Eoff, B. Raghava Reddy
  • Patent number: 6794438
    Abstract: A mixture comprising a cross-linkable thermosetting resin and a fluorocarbon additive which is curable to form a thermoset resin composition having a gradient concentration of the fluorocarbon additive through a cross-section thereof.
    Type: Grant
    Filed: October 17, 2001
    Date of Patent: September 21, 2004
    Assignee: RES Development Corporation
    Inventors: Robert E. Sterling, Eugene P. Goldberg
  • Patent number: 6784264
    Abstract: Initiators for nitroxide-mediated radical polymerizations are described. The initiators have an azlactone or ring-opened azlactone moiety to provide telechelic (co)polymers.
    Type: Grant
    Filed: December 3, 2003
    Date of Patent: August 31, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Kevin M. Lewandowski, Duane D. Fansler, Michael S. Wendland, Babu N. Gaddam
  • Patent number: 6784265
    Abstract: Initiators for nitroxide-mediated radical polymerizations are described. The initiators have an azlactone or ring-opened azlactone moiety to provide telechelic (co)polymers.
    Type: Grant
    Filed: December 3, 2003
    Date of Patent: August 31, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Duane D. Fansler, Kevin M. Lewandowski, Michael S. Wendland, Babu N. Gaddam
  • Publication number: 20040152852
    Abstract: Initiators for nitroxide-mediated radical polymerizations are described. The initiators have an azlactone or ring-opened azlactone moiety to provide telechelic (co)polymers.
    Type: Application
    Filed: December 3, 2003
    Publication date: August 5, 2004
    Applicant: 3M Innovative Properties Company
    Inventors: Kevin M. Lewandowski, Duane D. Fansler, Michael S. Wendland, Babu N. Gaddam
  • Publication number: 20040152853
    Abstract: Initiators for nitroxide-mediated radical polymerizations are described. The initiators have an azlactone or ring-opened azlactone moiety to provide telechelic (co)polymers.
    Type: Application
    Filed: December 3, 2003
    Publication date: August 5, 2004
    Applicant: 3M Innovative Properties Company
    Inventors: Duane D. Fansler, Kevin M. Lewandowski, Michael S. Wendland, Babu N. Gaddam
  • Patent number: 6756456
    Abstract: 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: Grant
    Filed: May 14, 2002
    Date of Patent: June 29, 2004
    Assignees: Enichem Elastomeres France S.A., Polimeri Europa S.p.A.
    Inventors: François Sauterey, Françoise Thenoz, Alain Guyot, Romano Lima, Piero Maestri, Francesco Masi
  • Patent number: 6743881
    Abstract: The present invention relates to a polymer for a chemically amplified resist and a resist composition using the same. The present invention provides a polymer represented by the Formula (1) and a chemically resist composition for deep ultraviolet light comprising the same, The chemically amplified resist composition comprising the polymer represented by the formula (1) of the present invention responds process and can embody a micro-paten of high resolution on a substrate.
    Type: Grant
    Filed: April 16, 2003
    Date of Patent: June 1, 2004
    Assignee: Dongjin Semichem Co., Ltd.
    Inventors: Deog-Bae Kim, Hyeon-Jin Kim, Yong-Joon Choi, Yoon-Sik Chung
  • Patent number: 6734246
    Abstract: Polyvinylacetal-grafted polymers in the form of their aqueous dispersions or water-redispersible powders, and based on emulsion or suspension polymerized base polymers of one or more monomers from the group consisting of vinyl esters, (meth)acrylates, vinylaromatics, olefins, 1,3-dienes and vinyl halides, and optionally, further monomers copolymerizable therewith, the base polymers grafted with polyvinylacetals having from 0 to 5.0 mol % of vinyl acetate units, from 75 to 95 mol % of vinyl alcohol units and from 0.1 to 20 mol % of acetal units which are derived from aldehydes having 3 to 7 C atoms, are useful as additives in construction compositions, as binders, and as adhesives, and may be dried to form readily water-redispersible polymer powders.
    Type: Grant
    Filed: November 9, 2001
    Date of Patent: May 11, 2004
    Assignee: Wacker Polymer Systems GmbH & Co. KG
    Inventors: Hans-Peter Weitzel, Peter Ball, Peter Tschirner
  • Patent number: 6723814
    Abstract: 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: Grant
    Filed: May 16, 2001
    Date of Patent: April 20, 2004
    Assignee: BioCure, Inc.
    Inventors: Wolfgang Meier, Corinne Nardin, Mathias Winterhalter
  • Patent number: 6710147
    Abstract: This invention is based upon the unexpected discovery that the reactivity of the most important monomers commonly used in synthesizing tackifier resins with aluminum halide catalysts can be enhanced by conducting the polymerization in the presence of an allylic halide. For instance, the conversions of 2-methyl-2-butene, cis-piperylene, and cyclopentene that are attained in polymerizations that are catalyzed with aluminum halide catalysts are increased by conducting the polymerization in the presence of an allylic halide, such as allyl chloride. Increased monomer conversion is of great commercial importance because it leads to an increased level of efficiency and reactor capacity.
    Type: Grant
    Filed: June 10, 2003
    Date of Patent: March 23, 2004
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: Kirkwood Storer Cottman
  • Publication number: 20040054107
    Abstract: Copolymers formed by TFE and FMVE containing FMVE in percent by moles from 2.5% to 8%; the % TFE moles being the complement to 100% of the FMVE moles.
    Type: Application
    Filed: July 15, 2003
    Publication date: March 18, 2004
    Inventors: Pasqua Colaianna, Giulio Brinati, Vincenzo Arcella
  • Patent number: 6689856
    Abstract: 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: Grant
    Filed: May 15, 2002
    Date of Patent: February 10, 2004
    Assignee: L'Oreal
    Inventor: Florence L'alloret
  • Publication number: 20040024145
    Abstract: The invention relates to a process for preparing a reaction product (RP) which is functionalized by groups containing halogen or sulfonyl chloride by reaction of at least one free-radically polymerizable monomer, at least one compound of the formula (I), 1
    Type: Application
    Filed: July 14, 2003
    Publication date: February 5, 2004
    Inventors: Yvonne Heischkel, Nicolas Stockel, Philipp Wieland, Marcus Schafer, Oskar Nuyken
  • Patent number: 6680362
    Abstract: Initiators for nitroxide-mediated radical polymerizations are described. The initiators have an azlactone or ring-opened azlactone moiety to provide telechelic (co)polymers.
    Type: Grant
    Filed: February 5, 2003
    Date of Patent: January 20, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Duane D. Fansler, Kevin M. Lewandowski, Michael S. Wendland, Babu N. Gaddam
  • Publication number: 20040009399
    Abstract: Disclosed is a binder for a lithium-sulfur battery including a butadiene-based copolymer. The binder exhibits chemical resistance to polysulfides, is stable a battery working temperatures, forms an emulsion in organic solvents and exhibits high adherence to positive active materials and electrodes used in the lithium-sulfur battery. The disclosed binder compositions, due to their high adherence to positive active materials allow for higher relative amounts of positive active materials to be used in the battery resulting in a high capacity lithium-sulfur battery.
    Type: Application
    Filed: July 9, 2003
    Publication date: January 15, 2004
    Applicant: Samsung SDI Co., Ltd.
    Inventors: Seok Kim, Yongju Jung, Ji-Seong Han, Jan-Dee Kim
  • Patent number: 6677413
    Abstract: Initiators for nitroxide-mediated radical polymerizations are described. The initiators have an azlactone or ring-opened azlactone moiety to provide telechelic (co)polymers.
    Type: Grant
    Filed: February 5, 2003
    Date of Patent: January 13, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Kevin M. Lewandowski, Duane D. Fansler, Michael S. Wendland, Babu N. Gaddam
  • Patent number: 6639027
    Abstract: A production process for a vinyl-based polymer is provided. The production process comprises a step for polymerizing a vinyl-based monomer by a radical reaction within an aqueous medium in a polymerization vessel, and a step for supplying a reaction inhibitor with a melting point of no more than 40° C. from a reaction inhibitor supply tank to the polymerization vessel via a reaction inhibitor supply pipe. The reaction inhibitor supply tank and the reaction inhibitor supply pipe are heated, and the reaction inhibitor is added to the polymerization vessel in a liquid state with a viscosity of no more than 200 mPa·s. The reaction inhibitor can be added to the polymerization mixture without the use of an organic solvent even at low temperatures, and problems such as the solidification of the reaction inhibitor inside the supply tank or piping, and subsequent blocking of the piping do not occur.
    Type: Grant
    Filed: December 16, 2002
    Date of Patent: October 28, 2003
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Ryuichi Saito, Tadashi Amano, Toshihiko Kawakubo
  • Patent number: 6613854
    Abstract: This invention is based upon the unexpected discovery that the reactivity of the most important monomers commonly used in synthesizing tackifier resins with aluminum halide catalysts can be enhanced by conducting the polymerization in the presence of an allylic halide. For instance, the conversions of 2-methyl-2-butene, cis-piperylene, and cyclopentene that are attained in polymerizations that are catalyzed with aluminum halide catalysts are increased by conducting the polymerization in the presence of an allylic halide, such as allyl chloride. Increased monomer conversion is of great commercial importance because it leads to an increased level of efficiency and reactor capacity.
    Type: Grant
    Filed: November 5, 2002
    Date of Patent: September 2, 2003
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: Kirkwood Storer Cottman
  • Publication number: 20030114620
    Abstract: This invention is based upon the unexpected discovery that the reactivity of the most important monomers commonly used in synthesizing tackifier resins with aluminum halide catalysts can be enhanced by conducting the polymerization in the presence of an allylic halide. For instance, the conversions of 2-methyl-2-butene, cis-piperylene, and cyclopentene that are attained in polymerizations that are catalyzed with aluminum halide catalysts are increased by conducting the polymerization in the presence of an allylic halide, such as allyl chloride. Increased monomer conversion is of great commercial importance because it leads to an increased level of efficiency and reactor capacity.
    Type: Application
    Filed: November 5, 2002
    Publication date: June 19, 2003
    Inventor: Kirkwood Storer Cottman
  • Patent number: 6538087
    Abstract: 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: Grant
    Filed: July 27, 2001
    Date of Patent: March 25, 2003
    Assignee: Promerus, LLC
    Inventors: Xiao-Mei Zhao, Ramakrishna Ravikiran, Phillip S. Neal, Robert A. Shick, Larry F. Rhodes, Andrew Bell
  • Publication number: 20030034582
    Abstract: This invention relates to methods for manufacturing large PTFE parts by compression molding followed by sintering. The method comprises layering modified and unmodified PTFE in a mold, and compressing the layers to form a preform part. Once the preform parts are formed, they are assembled such that the areas of preform parts which are to be bonded together are the modified PTFE sections. The parts are then sintered and the modified PTFE sections bond together creating a strong, durable, bond.
    Type: Application
    Filed: August 5, 2002
    Publication date: February 20, 2003
    Inventors: Roxanne Dittrich, Taggart William Albert Mills
  • Patent number: 6518383
    Abstract: 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: Grant
    Filed: January 14, 2000
    Date of Patent: February 11, 2003
    Assignee: E.I. du Pont de Nemours and Company
    Inventor: Lech Wilczek
  • Patent number: 6444741
    Abstract: A method of preparing a composition containing a fluorocarbon thermoplastic random copolymer comprising the steps of: (a) providing a mixture having: (i) a fluorocarbon thermoplastic random copolymer having subunits of: —(CH2CF2)x—, —(CF2CF(CF3)y—, and —(CF2CF2)z—,  wherein x is from 1 to 50 or 60 to 80 mole percent, y is from 10 to 90 mole percent. z is from 10 to 90 mole percent. x+y+z equals 100 mole percent; (ii) a filler comprising zinc oxide; (iii) a curable amino functional polydimethyl siloxaie copolymer comprising aminofunctional units selected from tile group consisting of (aminoethylaminopropyl) methyl, ( aminopropyl) methyl and (aminopropyl) dimethyl; and (iv) a bisphenol residue curing agent; and (b) curing the mixture for 3 to 10 hours at a temperature in the range of 220° C. to 280° C. and for an additional 2 to 10 hours at a temperature in the range of 250° C. to 270° C.
    Type: Grant
    Filed: June 30, 2000
    Date of Patent: September 3, 2002
    Assignee: NexPress Solutions LLC
    Inventors: Jiann H. Chen, Joseph A. Pavlisko, Charles C. Anderson, Muhammed Aslam
  • Patent number: 6376626
    Abstract: A free-radical polymerization process for making macromonomers having the structure: comprising contacting: (a) CH2═CHY; (b) optionally, CH2═CXB; and (c) free-radicals, produced from a free-radical source; in which B, U, X, Y, Z, m, n and p are defined in the text; macromonomer quality being controlled by adjusting one or more of the following variables: molar ratios of a, b and c; temperature; monomer concentration; and conversion.
    Type: Grant
    Filed: October 19, 1999
    Date of Patent: April 23, 2002
    Assignee: Commonwealth Scientific and Industrial Research Organization
    Inventors: John Chiefari, Graeme Moad, Ezio Rizzardo, Alexei A. Gridnev
  • Patent number: 6369178
    Abstract: A composition containing a non-flammable chlorofluoro-olefin copolymer having a crystallinity index less than about 10% and a weight-average molecular weight greater than about 1,000,000 daltons, wherein the copolymer has at least two comonomer units of the formula: CX2CYA wherein each X is independently selected from H, Cl and F; Y is selected from H, Cl, F, O(CZ2)nCZ3, (CZ2)nCZ3, (OCZ2CZ2)nCZ3 and (O(CZ2)n)nCZ3, wherein each n is independently from about 1 to about 12 and each Z is independently selected from H, Cl and F; and A is selected from H, Cl and F, provided that for at least one comonomer unit, at least one of A, Y, either X or any Z is Cl. Substrates coated with the copolymer compositions are also disclosed.
    Type: Grant
    Filed: December 23, 1998
    Date of Patent: April 9, 2002
    Assignee: AlliedSignal Inc.
    Inventor: Thomas F. McCarthy
  • Patent number: 6340732
    Abstract: Provided is a method for synthesizing a poly(arylene vinylene), which method comprises selecting a vinyl monomer by controlling the ratio of cis isomer to trans isomer in the monomer, and forming the poly(arylene vinylene) from the resulting vinyl monomer, such that the desired cis vinylene to trans vinylene ratio is obtained in the poly(arylene vinylene) product.
    Type: Grant
    Filed: March 31, 1999
    Date of Patent: January 22, 2002
    Assignee: Cambridge Display Technology Limited
    Inventors: William Feast, Rusli Daik, Richard Henry Friend, Franco Cacialli
  • Patent number: 6339132
    Abstract: A process for regenerating unreacted vinyl chloride monomers is provided which has the step of compressing by means of an compressor an unreacted vinyl chloride monomer recovered from a process of vinyl chloride polymer production; compressing the same in contact with a lubricating oil fed into the compressor. In this process, the lubricating oil contains a polymerization inhibitor. Hence, even when this lubricating oil is circulated and reused as a lubricating oil after its separation from the unreacted vinyl chloride monomer, any vinyl chloride monomer remaining in the lubricating oil can effectively be kept from polymerizing in lubricating-oil circulation lines.
    Type: Grant
    Filed: August 8, 2000
    Date of Patent: January 15, 2002
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Takashi Kobayashi, Fumiaki Adachi, Fujio Sato, Tadashi Amano
  • Patent number: 6320001
    Abstract: An improved process for producing a polymer by polymerizing a monomer having an ethylenic double bond in a polymerization vessel having a polymer scale preventive coating film on its inner wall surfaces, etc. is provided. The coating film is formed by coating a first coating liquid containing a compound selected from the group consisting of an aromatic compound having 5 or more conjugated &pgr; bonds and a heterocyclic compound having 5 or more conjugated &pgr;bonds, and then coating a second coating liquid a dye and/or pigment on the first layer. The first and second coating liquids are applied by means of steam as a carrier. The second layer has a surface having a contact angle to water of less than 60° after its surface has been kept in contact with a solution of mixture of water and a vinyl chloride monomer in a weight ratio of 1:1 at 50° C. for 1 hour.
    Type: Grant
    Filed: February 24, 2000
    Date of Patent: November 20, 2001
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Toshihide Shimizu, Mikio Watanabe, Genji Noguki
  • Publication number: 20010038887
    Abstract: A coating solution for forming porous organic film comprising the following A) to C), wherein A) and B) have respective heat decomposition initiation temperatures Ta and Tb satisfying a relation: Ta>Tb:
    Type: Application
    Filed: December 22, 2000
    Publication date: November 8, 2001
    Inventors: Yuji Yoshida, Hyuncheol Choi, Atsushi Sukumoda
  • Patent number: 6303725
    Abstract: The present invention provides a cyclic dione polymer, which is a homopolymer or a copolymer of a cyclic dione monomer selected from those represented by formulae (I) and (II) wherein A and B may be the same or different and are independently selected from the group consisting of halogen, hydrogen, C3-20 cyclic or pericyclic alkyl, C1-20 linear and branched alkyl, C6-20 aryl, C7-20 arylalkyl, C7-20 alkylaryl, silyl, alkylsilyl, germyl, alkylgermyl, alkoxycarbonyl, acyl, and a heterocylic group; or, A and B are linked together to form a C3-20 saturated or unsaturated cyclic hydrocarbon group or a substituted or unsubstituted heterocyclic group; C is selected from the group consisting of oxygen, sulfur, —CH2—, and —SiH2—, wherein each R1 is independently selected from C1-20 alkyl and phenyl.
    Type: Grant
    Filed: September 29, 2000
    Date of Patent: October 16, 2001
    Assignees: Industrial Technology Research Institute, Everlight Chemical Industrial Corporation
    Inventors: Sheng-Yueh Chang, Bang-Chein Ho, Jian-Hong Chen, Ting-Chun Liu, Tzu-Yu Lin
  • Patent number: 6303712
    Abstract: In a process for producing a vinyl chloride polymer by suspension polymerization in a polymerization vessel having a coating film of a polymer scale preventive agent on the polymerization vessel inner wall and other inner surfaces, the polymerization is initiated by introducing an oil-soluble polymerization initiator having 10-hour half-life temperature of from 30° C. to 55° C., at a particular position of the interior of the liquid phase of polymerization materials charged. The position satisfys the following expression: H≦0.7H0 wherein H represents a height from the bottom of the polymerization vessel to the position where the polymerization initiator is introduced, and H0 represents a height from the bottom of the polymerization vessel to the liquid surface of the liquid phase.
    Type: Grant
    Filed: August 20, 1999
    Date of Patent: October 16, 2001
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Kazuhiro Kumakura, Makoto Ooura, Tadashi Amano