Solid Polymer Derived From Aldehyde Or Derivative Containing Halogen Patents (Class 525/402)
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Patent number: 9018346Abstract: The present invention provides a method for removing unreacted monomer in polymer using a SCC comprising a housing having a rotation axis; a supply part of at least one polymer formed inside of the housing; at least two spinning cones that are installed so as to have a constant gradient from the upper part to the lower part to the rotation axis, move polymer supplied through the polymer supply part, and rotate around the rotation axis; a fixed cone that is fixed and formed on the inner side of the housing, and provides a pathway for sequentially moving polymer from a spinning cone at the upper part to a spinning cone at the lower part; a product collection part for collecting polymer moved through the spinning cone and the fixed cone; and a driving part for rotating the spinning cone.Type: GrantFiled: May 25, 2012Date of Patent: April 28, 2015Assignee: LG Chem, Ltd.Inventors: Eun-Jung Joo, Dong-Kwon Lee, Dae-Young Shin, Jong-Ku Lee, Chang-Hoe Heo
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Publication number: 20150017410Abstract: A resin binder for use in formaldehyde emission-free stator insulation. The resin binder includes an epoxy, a catalyst, and a polymer material. The polymer material is hydroxyl-terminated. The resin binder is used in mica tape for groundwall insulation for stator windings.Type: ApplicationFiled: July 10, 2013Publication date: January 15, 2015Inventors: James Jun Xu, Jeffrey David Sheaffer
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Patent number: 8871872Abstract: Provided is a method for a poly(GAP-co-THF)diol prepolymer in which THF monomer units are copolymerized to GAP, having high difunctionality, a reduced amount of cyclic oligomer side products having a small molecular weight, a wide copolymer composition and controlled molecular weight. The resulted poly(GAP-co-THF)diol prepolymer according to the present invention is used as a binder for a high-energy PBX or composite propellant, specifically used as a binder in the preparation of polyurethane having excellent mechanical properties.Type: GrantFiled: May 15, 2013Date of Patent: October 28, 2014Assignee: Agency For Defense DevelopmentInventors: Bum Jae Lee, In Joo Bae, Jin Seuk Kim, Seung Hee Kim
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Publication number: 20140287241Abstract: Provided is an epoxy resin allowing a cured product that is less changed in terms of heat resistance due to thermal history and has low thermal expansion, the epoxy resin having high solvent solubility. The epoxy resin is a polyglycidyl ether of a naphthol-novolac resin including, at predetermined proportions, a trimer and a dimer that have specific structures.Type: ApplicationFiled: July 11, 2012Publication date: September 25, 2014Applicant: DIC CORPORATIONInventor: Yutaka Satou
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Patent number: 8318866Abstract: Molding materials and the moldings produced therefrom, containing a) polyoxymethylene in which at least 50% of the terminal groups are hydroxyl groups, which has a melt volume rate MVR of less than 20 cm3/10 minutes, measured according to ISO 1133 at 190° C. and 2.16 kg, and whose proportion of low molecular weight constituents having low molecular weights below 10 000 dalton is less than 15% by weight, based on the total mass of the polyoxymethylene, and b) a thermoplastic elastomer, are described. The moldings produced from these molding materials are distinguished by a very high notch impact strength.Type: GrantFiled: April 14, 2009Date of Patent: November 27, 2012Assignee: Ticona GmbHInventors: Klaus Kurz, Christine Koestler, Lowell Larson
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Patent number: 8252892Abstract: A process for obtaining an elastomer in solid phase from its polymer solution which comprises: (a) optionally pre-concentrating the polymer solution coming from the production system by a flash process; (b) subjecting the polymer solution to a concentrating stripping operation by water vapor in a mixing device comprising internal moveable mixing parts which transfer minimal mechanical energy to the solution in the form of friction heat; and (c) subjecting the concentrated polymer phase coming from (b) to devolatilization by mechanical energy and/or vapor flow to remove residual solvent.Type: GrantFiled: November 5, 2009Date of Patent: August 28, 2012Assignee: Polimeri Europa S.p.A.Inventors: Fabio Montanari, Federica Mainardi, Gabriele Veneri
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Patent number: 7928184Abstract: The present invention provides a method of manufacturing a stabilized polyacetal resin, comprising the step of applying a heat treatment to a polyacetal resin having an unstable terminal group in the presence of an unstable terminal group decomposer selected from the following Group I, Group II and Group III, thereby decreasing the unstable terminal group: unstable terminal group decomposer of Group I: (I) a quaternary ammonium salt of an acidic cyclic amide compound, unstable terminal group decomposer of Group II: (II) a quaternary ammonium salt of a polycarboxylic acid intramolecularly having four or more carboxyl groups and/or a quaternary ammonium salt of an aminocarboxylic acid intramolecularly having one or more carboxyl group(s), unstable terminal group decomposer of Group III: (III) a quaternary ammonium salt, wherein a compound providing a counter-anion of a quaternary ammonium salt is at least one selected from the group consisting of the following (i) to (v): (i) a carbonic acid monoesterType: GrantFiled: March 7, 2006Date of Patent: April 19, 2011Assignee: Polyplastics Co., Ltd.Inventors: Hatsuhiko Harashina, Hiroaki Nakao
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Patent number: 7851585Abstract: The invention relates to polyacetal compositions comprising a mixture of (i) a polyacetal resin, (ii) p-aramid particles and (III) a vinyl-terminated dimethyl siloxane polymer. These compositions are useful in preparing molded articles exhibiting a good balance between high self-lubricating properties and wear resistance, and especially useful in articles that are in motion with respect to other parts they are in contact with.Type: GrantFiled: October 16, 2008Date of Patent: December 14, 2010Assignee: E. I. du Pont de Nemours and CompanyInventors: Anne-Laure Brison, Andreas Renken
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Patent number: 7659051Abstract: A naphthalene-backbone polymer represented by Formula 1: wherein n and m are independently at least 1 and less than about 190, R1 is a hydrogen, a hydroxyl, a hydrocarbon group of about 10 carbons or less, or a halogen, R2 is methylene or includes an aryl linking group, R3 is a conjugated diene group, and R4 is an unsaturated dienophile group.Type: GrantFiled: December 31, 2007Date of Patent: February 9, 2010Assignee: Cheil Industries, Inc.Inventors: Kyong Ho Yoon, Jong Seob Kim, Dong Seon Uh, Chang Il Oh, Kyung Hee Hyung, Min Soo Kim, Jin Kuk Lee
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Patent number: 7619020Abstract: The present invention provides a polyacetal resin composition having excellent mechanical characteristics with reduced generation of formaldehyde. To 100 parts by weight of (A1) a polyacetal resin having substantially straight chain molecular structure, there are added 0.1-20 parts by weight of (A2) a polyacetal resin having a branched or cross-linked molecular structure, 3-200 parts by weight of (B) a glass-base inorganic filler, and 0.001 to 3 parts by weight of (C) a boric acid compound.Type: GrantFiled: August 8, 2007Date of Patent: November 17, 2009Assignee: Polyplastics Co., Ltd.Inventors: Akihide Shimoda, Hiraku Iketani
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Publication number: 20040132919Abstract: To provide an antistatic polymer composition that can manifest a uniform antistatic effect permanently with little change in the surface resistance of moldings owing to humidity.Type: ApplicationFiled: November 24, 2003Publication date: July 8, 2004Inventor: Toshikazu Kobayashi
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Patent number: 6437053Abstract: A process for the continuous preparation of a thermoplastic molding composition with narrow scatter of the melt flow index, which comprises mixing two or more chemically identical starting materials of different melt flow index in a pelletizing extruder fitted with an on-line melt flow index meter and adjustable metering systems.Type: GrantFiled: June 13, 2000Date of Patent: August 20, 2002Assignee: Ticona GmbHInventor: Gerhard Reuschel
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Patent number: 6426393Abstract: To provide polyacetal which has excellent shock resistance, rigidity and creep resistance as essential properties of the polymer and makes a high flowability and an excellent molding property upon molding possible by improving the thermal stability. In the manufacture of a polyacetal copolymer by a copolymerization of 100 parts by weight of trioxane (a) with 0.05-20 parts by weight of a cyclic ether compound (b) which is copolymerizable with trioxane and 0.001-10 parts by weight of a mono-functional glycidyl compound (c), the mono-functional glycidyl compound (c) having a chlorine content of not more than 0.3% by weight is used.Type: GrantFiled: February 1, 2001Date of Patent: July 30, 2002Assignee: Polyplastics Co., Ltd.Inventors: Yoshihisa Tajima, Hidetoshi Okawa
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Patent number: 6384179Abstract: A polyacetal resin composition comprising 30-90% by weight of polyacetal copolymer (A) having a melt index of less than 1.0 g/10 min. and 70-10% by weight of polyacetal copolymer (B) having a melt index of 1.0-100 g/10 min., both melting points of (A) and (B) being 155°-162° C., or a difference in melting point between (A) and (B) being not less than 6° C., has distinguished toughness and creep resistance.Type: GrantFiled: December 15, 2000Date of Patent: May 7, 2002Assignee: Asahi Kasei Kabushiki KaishaInventors: Noritaka Tanimura, Tadao Matsushika
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Publication number: 20010009929Abstract: A process for preparing multi-stage emulsion polymers is provided. The process is capable of producing multi-stage emulsion polymers having low dry-bulk density. These polymers are useful in coating compositions such as paints and paper coatings.Type: ApplicationFiled: February 21, 2001Publication date: July 26, 2001Inventors: Robert Mitchell Blankenship, James Keith Bardman
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Patent number: 6225416Abstract: The novel molding made from a combination of polyacetal with directly molded-on function elements is distinguished by the fact that the function elements comprise one or more elastomers. Such elastomers comprise partially or fully hydrogenated nitrile rubbers, one- or multicomponent silicone rubbers or sulfur-containing rubbers.Type: GrantFiled: March 30, 2000Date of Patent: May 1, 2001Assignee: Hoechst AktiengesellschaftInventors: Frank Reil, Frank Reuter, Ulrich Haack, Gerhard Reuschel
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Patent number: 6111029Abstract: The novel molding made from a combination of polyacetal with directly molded-on function elements is distinguished by the fact that the function elements comprise one or more elastomers. Such elastomers comprise partially or fully hydrogenated nitrile rubbers, one- or multi-component silicone rubbers or sulfur-containing rubbers.Type: GrantFiled: April 23, 1999Date of Patent: August 29, 2000Inventors: Frank Reil, Frank Reuter, Ulrich Haack, Gerhard Reuschel
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Patent number: 5977266Abstract: The novel molding made from a combination of polyacetal with directly molded-on function elements is distinguished by the fact that the function elements comprise one or more elastomers. Such elastomers comprise partially or fully hydrogenated nitrile rubbers, one- or multi-component silicone rubbers or sulfur-containing rubbers.Type: GrantFiled: November 3, 1995Date of Patent: November 2, 1999Assignee: Hoechst AktiengesellschaftInventors: Frank Reil, Frank Reuter, Ulrich Haack, Gerhard Reuschel
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Patent number: 5973081Abstract: A modified polyacetal is obtainable by heating 0.1 to 30 parts by weight of (B) a polymerizable compound having a modifying group such as an epoxy group, a carboxyl group or an acid anhydride group relative to 100 parts by weight of (A) a base polyacetal and introducing the modifying group of the polymerizable compound to the base polyacetal. The base polyacetal (A) includes (A1) a polyacetal selected from polyoxymethylene homopolymers and copolymers, and (A2) a polymerizable polyacetal having a functional group comprising a polymerizablly unsaturated bond. The introduction efficiency of the modifying group can be enhanced by adding 0.01 to 2.5 parts by weight of (C) a free-radical initiator relative to 100 parts by weight of the total amount of the components (A) and (B), and mixing the resultant mixture under a molten state of the polyacetal. According to such method, the affinity of the polyacetal is improved by introducing the modifying group to the base polyacetal with ease and high efficiency.Type: GrantFiled: June 7, 1996Date of Patent: October 26, 1999Assignee: Polyplastics Co., Ltd.Inventors: Hiroyuki Kanai, Hajime Serizawa, Katsuhei Ohnishi, Eiji Masuda, Kaoru Yamamoto
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Patent number: 5563235Abstract: Fluorinated aldehydes are made by reacting a fluorinated acyl chloride with a silicon hydride in the presence of palladium. Also disclosed are fluorinated ether aldehydes and their polymers, a process for making fluorinated aldehydes polymers using titanium or aluminum alkoxide catalysts, and a process for endcapping fluorinated polymers using perfluoroallyl fluorosulfate or fluorine.Type: GrantFiled: January 16, 1996Date of Patent: October 8, 1996Assignee: E. I. Du Pont de Nemours and CompanyInventor: William B. Farnham
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Patent number: 5310828Abstract: Novel polymeric compositions are provided for polyamide fibers or fibers having terminal amino groups that impart stain resistance and are resistant to discoloration.Type: GrantFiled: October 28, 1991Date of Patent: May 10, 1994Assignee: Peach State Labs, Inc.Inventors: Michael S. Williams, Thomas H. Moss, III
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Patent number: 5218038Abstract: The invention relates to the modification of a curable phenolic resin system by the incorporation of alkylphenol, alkoxyphenol, arylphenol or aryloxyphenol. The resulting resin has reduced water soluble leachates which, in turn, improves the break time when the resin is used to coat proppants for treating subterranean formations.Type: GrantFiled: November 14, 1991Date of Patent: June 8, 1993Assignee: Borden, Inc.Inventors: Calvin R. Johnson, Kwok-tuen Tse, Charles J. Korpics
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Patent number: 5061763Abstract: A stain resistant composition for fibers having polyamide linkages prepared by polymerizing an .alpha.-substituted acrylic acid or ester in the presence of a sulfonated aromatic formaldehyde condensation plymer, or by polymerization of a sulfonated hydroxyaromatic ester of an .alpha.-substituted acrylic acid or acrylic acid, and methods for making and applying the composition.Type: GrantFiled: December 27, 1989Date of Patent: October 29, 1991Assignee: Peach State Labs, Inc.Inventors: Thomas H. Moss, III, Ralph R. Sargent, Michael S. Williams
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Patent number: 5030726Abstract: The present invention relates to polymerizable cyclic urea derivatives which can be thermally split to give rise to an isocyanate group; and to a polymer having cyclic urea pendant groups, which can be cured by heating without any additional curing agent such as an isocyanate blocked with a volatile lower molecular weight material, so that volatile material is not released in a thermal curing process.Type: GrantFiled: December 29, 1989Date of Patent: July 9, 1991Assignee: Nippon Paint Co., Ltd.Inventors: Tsuboniwa Noriyuki, Urano Satoshi, Umemoto Hirotoshi, Sakamoto Hiroyuki, Tobinaga Kenshiro, Tsuchiya Yasuyuki
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Patent number: 5015259Abstract: A stain resistant composition for fibers having polyamide linkages prepared by polymerizing an .alpha.-substituted acrylic acid or ester in the presence of a sulfonated aromatic formaldehyde condensation polymer, and methods for making and applying the composition.Type: GrantFiled: May 10, 1990Date of Patent: May 14, 1991Assignee: Peach State Labs, Inc.Inventors: Thomas H. Moss, III, Ralph R. Sargent, Michael S. Williams
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Patent number: 5011907Abstract: Highly conjugated organic polymers typically have large non-resonant electronic susceptibilities, which give the molecules unusual optical properties. To enhance these properties, "defects" are introduced into the polymer chain. Examples include light doping of the conjugated polymer and synthesis, conjugated polymers which incorporate either electron donating or accepting groups, and conjugated polymers which contains a photoexcitable species capable of reversibly transferring its electron to an acceptor. Such defects in the chain permit enhancement of the second hyperpolarizability by at least an order of magnitude.Type: GrantFiled: October 10, 1989Date of Patent: April 30, 1991Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space AdministrationInventor: David N. Beratan
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Patent number: 4940757Abstract: A stain resistant composition for fibers having polyamide linkages prepared by polymerizing an .alpha.-substituted acrylic acid or ester in the presence of a sulfonated aromatic formaldehyde condensation polymer, and methods for making and applying the composition.Type: GrantFiled: April 20, 1989Date of Patent: July 10, 1990Assignee: Peach State Labs, Inc.Inventors: Thomas H. Moss, III, Ralph R. Sargent, Michael S. Williams
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Patent number: 4855365Abstract: There is disclosed a novel poly-.beta.-alanine compound comprising monomeric units of the formula (CH.sub.2 CH.sub.2 CONH) and monomeric units of the formula ##STR1## in a specific proportion, having a high degree of polymerization and which is essentially free from metal contamination. The novel poly-.beta.-alanine is produced by polymerizing acrylamide using an alkaline earth metal alcoholate catalyst in an extremely limited amount. The novel compound has a wide variety of uses, and is especially useful as a thermal stabilizer for a polyacetal resin.Type: GrantFiled: May 8, 1987Date of Patent: August 8, 1989Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Fumihiko Yamamoto, Teruyuki Misumi
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Patent number: 4758634Abstract: Electroactive polymers of the structure and formula ##STR1## in their neutral and ionized forms, where the backbone group R.sub.b is selected from or is a combination of five- and six-membered rings capable of aromatic and quinonoid bonding structures, R.sub.s is selected from aliphatic, aromatic and heterocyclic groups and x, y are positive integers from 1 to 5 and m is a positive integer from 2 to about 10,000, together with a method of making them are disclosed.Type: GrantFiled: September 8, 1986Date of Patent: July 19, 1988Assignee: Honeywell Inc.Inventor: Samson A. Jenekhe
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Patent number: 4600767Abstract: Thermostable hydroxystyrylaza compounds are prepared by reacting methylated pyridines and/or pyrazines with one or more monohydroxy aromatic aldehydes having the ortho and para positions to the hydroxy group block with groups inert to condensation reactions. These compounds are useful to make unsaturated derivatives which can cure into high temperature resistant polymers and/or laminates without giving off condensation products.Type: GrantFiled: August 16, 1985Date of Patent: July 15, 1986Assignee: The Dow Chemical CompanyInventors: Tim R. Diephouse, Randy J. LaTulip, John W. Robinson, Gary R. Gantt
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Patent number: 4181685Abstract: Thermoplastic molding compositions having improved properties are composed of a mixture of from 99.999 to 90% by weight of a linear polyoxymethylene and from 0.001 to 10% by weight of a branched or cross-linked polyoxymethylene. The linear polyoxymethylenes are homopolymers of formaldehyde or of trioxane or copolymers of trioxane and at least one compound of monofunctional reaction which can be copolymerized with trioxane. The branched or cross-linked polyoxymethylenes are copolymers of trioxane and a multifunctionally reacting compound, or copolymers of trioxane, a monofunctionally reacting compound and a branched or cross-linked polyether. The molding compositions yield shaped articles having improved mechanical properties.Type: GrantFiled: April 14, 1976Date of Patent: January 1, 1980Assignee: Hoechst AktiengesellschaftInventors: Rudolf Kern, Heinz Schmidt, Karlheinz Burg, Ernst Wolters, Gunter Sextro