At Least One Hydrogen Atom Patents (Class 524/421)
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Patent number: 11732120Abstract: A fiber-reinforced polymer composition that contains a polymer matrix, stabilizer system, and a plurality of long reinforcing fibers that are distributed within the polymer matrix is provided. The stabilizer system comprises an antioxidant, an ultraviolet light stabilizer, and a carbon material that includes carbon particles. The polymer composition defines a surface that exhibits a ?E value of from about 0.6 to about 3 after being exposed to UV light at a total exposure level of 2,500 kJ/m2 according to SAE J2527_2017092.Type: GrantFiled: December 3, 2021Date of Patent: August 22, 2023Assignee: Ticona LLCInventor: Aaron H. Johnson
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Patent number: 9260546Abstract: Described is a process for producing aqueous solutions of vinyllactam polymers and solids obtainable therefrom by drying, especially polyvinylpyrrolidone, said process comprising using one or more sulfur components selected from the group consisting of sulfur dioxide, sulfurous acid and one or more salts of sulfurous acid, to reduce residual monomer. Also described are vinyllactam polymers obtainable by the process which have good stability in storage, the use of these vinyllactam polymers, and articles of manufacture and preparations comprising these vinyllactam polymers or obtained by use thereof.Type: GrantFiled: August 7, 2013Date of Patent: February 16, 2016Assignee: BASF SEInventors: Ulrich Filges, Bernd de Potzolli, Andy Wolff
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Patent number: 9169363Abstract: In the present process, reversibly crosslinking composites or storage-stable prepregs are produced by means of a hetero Diels-Alder reactions (HDA,) for example of PMMA polymers. At slightly elevated temperature, these prepregs can be reversibly decrosslinked again by a retro hetero Diels-Alder reaction so that they become moldable. The back-reaction to products which are again crosslinked or high molecular weight then takes place at room temperature.Type: GrantFiled: November 6, 2012Date of Patent: October 27, 2015Assignee: EVONIK DEGUSSA GmbHInventors: Friedrich Georg Schmidt, Stefan Hilf
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Patent number: 8916635Abstract: The present invention relates to an innovative method for the reversible crosslinking of, for example, adhesives or coating materials. The reversible crosslinking method allows very rapid crosslinking even at room temperature and undoing of the crosslinks at higher temperatures, thereby regaining the capacity for thermoplastic processing and allowing the originally bonded substrates to be separated from one another again with ease. A particular aspect in this context is that a plurality of cycles of crosslinking and undoing of the crosslinks are possible with the present system.Type: GrantFiled: January 4, 2011Date of Patent: December 23, 2014Assignee: Evonik Roehm GmbHInventors: Friedrich Georg Schmidt, Simon Krause, Andre Hennig, Stefan Hilf, Christopher Barner-Kowollik, Andrew John Inglis, Leena Nebhani, Ozcan Altintas
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Publication number: 20140275352Abstract: Resin compositions having a reduced solubility and methods for making and using same are provided. In at least one specific embodiment, the resin composition can include a phenolic resin, a latent acid, a catalyst, and a liquid medium. The catalyst can be a base compound and can be present in an amount of about 2 wt % to about 7 wt %, based on the combined weight of the phenolic resin, the latent acid, the catalyst, and the liquid medium.Type: ApplicationFiled: March 11, 2014Publication date: September 18, 2014Applicant: Georgia-Pacific Chemicals LLCInventors: Robert A. Breyer, Melissa J. Cannon, Jessica D. Jennings, Daniel C. Yeager, Lawrence Gollob
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Patent number: 8802761Abstract: A ?-conjugated polymer composition including: (a) a solvent; (b) a ?-conjugated polymer which is dissolved in the solvent and doped with a dopant; (c) at least one of an acidic substance and a salt of an acidic substance; and (d) a phenolic compound; wherein when only the acidic substance is contained as the component (c), the acidic substance is different from the phenolic compound, when only the salt of an acidic substance is contained, the salt of an acidic substance is different from the phenolic compound, and when both the acidic substance and the salt of an acidic substance are contained, at least one of the acidic substance and the salt of an acidic substance is different from the phenolic compound.Type: GrantFiled: June 14, 2010Date of Patent: August 12, 2014Assignee: Idemitsu Kosan Co., Ltd.Inventors: Shingo Onodera, Norihiro Kuroda
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Publication number: 20130183491Abstract: A method for forming a film, containing the following steps (1) to (4), and a film obtained by the method for forming a film: step (1): preparing an aqueous dispersion liquid containing (A) a hydrophilic functional group-containing resin, (B) an ammonium salt, and (C) a nonionic thickener, a mixed amount of the component (B) being from 0.25 to 10 parts by mass per 100 parts by mass of a solid content of the component (A); step (2): coating the aqueous dispersion liquid on at least one surface of a substrate to form a coated film; step (3): subjecting the coated film to a thermal gelation treatment to form a gelled film; and step (4): drying and solidifying the gelled film to form a film.Type: ApplicationFiled: July 5, 2011Publication date: July 18, 2013Applicant: KURARAY CO., LTD.Inventors: Michinori Fujisawa, Tomoaki Kimura
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Patent number: 8299145Abstract: A method of producing a nonfoamed formed article of a vinyl chloride resin by mixing a hydrated water-containing gypsum powder and a vinyl chloride resin powder together, and heating the obtained mixture at a temperature lower than a temperature at which the vinyl chloride resin starts decomposing thereby to remove the hydrated water of the gypsum and to form the mixture. The method makes it possible to obtain a nonfoamed formed article free of defective appearance by directly adding the hydrated gypsum (specifically dihydrate gypsum) to the vinyl chloride resin without converting it to the anhydrous gypsum, without requiring wasteful energy cost, without causing foaming or defective forming stemming from the hydrated water and maintaining stability.Type: GrantFiled: December 23, 2011Date of Patent: October 30, 2012Assignee: Tokuyama CorporationInventors: Makoto Kataoka, Yasuto Yasuzawa, Yuusuke Shimahara
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Patent number: 8268914Abstract: A film-forming composition made from a mixture of PVOH, chitosan, an alkali metal or ammonium bisulfite or metabi sulfite, and optional ingredients such as plasticizers, antioxidants, UV stabilizers, surfactants, crosslinking agents, lubricants, and extenders, is disclosed. Also disclosed are a method of making a film from the composition, a resulting film, and a packet made from the film and containing a cleaning composition such as a rinse additive. The composition can be formulated to yield an article such as a film which is soluble only below a predetermined pH threshold.Type: GrantFiled: November 13, 2007Date of Patent: September 18, 2012Assignee: Monosol, LLCInventors: Andrew P. Verrall, Solomon E. Brown, Dennis A. Beckholt
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Publication number: 20120184657Abstract: An additive composition comprises a plurality of first particles and a metal hydroxide compound. A polymer composition comprises a polymer, a plurality of first particles, and a metal hydroxide compound. The first particles comprise a magnesium oxysulfate compound.Type: ApplicationFiled: November 26, 2011Publication date: July 19, 2012Inventors: K. David Lake, JR., Normand P. Miron
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Publication number: 20120107527Abstract: The present invention relates to the use of polymer blends for producing slit film tapes comprising: A) 30% to 50% by weight of a biodegradable, aliphatic-aromatic polyester; B) 50% to 70% by weight of polylactic acid and C) 0% to 2% by weight of a compatibilizer.Type: ApplicationFiled: October 26, 2011Publication date: May 3, 2012Applicant: BASF SEInventor: Jörg Auffermann
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Patent number: 8063118Abstract: The invention relates to absorptive, crosslinked polymeric compositions that are based on partly neutralized, monoethylenically unsaturated monomer carrying acid groups wherein the absorptive, crosslinked polymeric composition further includes an antioxidant and is color stable.Type: GrantFiled: September 17, 2010Date of Patent: November 22, 2011Assignee: Evonik Stockhausen, LLCInventors: Iqbal Ahmed, Mirko Walden, Brian King, Scott J. Smith, Harald Schmidt
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Publication number: 20110056157Abstract: A composite material containing substantially homogeneous matrix of a gypsum material and a urea-formaldehyde material where wet-used chopped strand fibers are filamentized within the substantially homogeneous matrix.Type: ApplicationFiled: September 8, 2010Publication date: March 10, 2011Applicant: OCV INTELLECTUAL CAPITAL, LLCInventors: Leonard J. Adzima, Richard P. Krumlauf, Annabeth Law, Ralph McGrath, Scott W. Schweiger
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Patent number: 7816426Abstract: The invention relates to absorptive, crosslinked polymeric compositions that are based on partly neutralized, monoethylenically unsaturated monomer carrying acid groups wherein the absorptive, crosslinked polymeric composition further includes an antioxidant and is color stable.Type: GrantFiled: July 16, 2007Date of Patent: October 19, 2010Assignee: Evonik Stockhausen, LLCInventors: Iqbal Ahmed, Mirko Walden, Brian King, Scott J. Smith, Harald Schmidt
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Publication number: 20100261807Abstract: An aqueous dispersion comprising a non-settling colloidal hemicellulose ester polymer in water and a method of producing the same. In the method an esterified hemicellulose is provided wherein at least a part of the esterifying groups are derived from a lower alkanoic acid; the esterified hemicellulose is dissolved in an alkanoic acid to produce a solution; and the solution is dispersed into water to produce an aqueous dispersion of the hemicellulose ester. The present compositions, containing hemicellulose derivatives of low solubility, can be used in paper, paperboard and other fibre-based materials, for paints, surface treatments for polymer films, and polymer films as such, and can be applied as binders.Type: ApplicationFiled: June 2, 2008Publication date: October 14, 2010Inventors: Christiane Laine, Soili Peltonen, Sari Hyvarinen, Bjorn Krogerus, Hannu Mikkonen, Heikki Pajari, Mika Vaha-Nissi
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Patent number: 7728055Abstract: An object of the present invention is to provide a new granulating process which can recover desired coagulated latex particles with a significantly excellent yield, and can suppress secondary coagulation under the condition having a higher temperature than a softening point of a polymer, without deteriorating the original quality of the polymer itself. A process for producing coagulated latex particles which can suppress the secondary coagulation under the condition having the broad temperature range, without deteriorating the original quality of the polymer itself by spraying or dropping a polymer latex into a gas-phase containing an inorganic salt and/or an acid, and a dispersant in an aerosol form, and dropping or feeding the droplets of the polymer latex into an aqueous phase containing a dispersant.Type: GrantFiled: July 12, 2006Date of Patent: June 1, 2010Assignee: Kaneka CorporationInventor: Takashi Ueda
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Publication number: 20100105821Abstract: A film-forming composition made from a mixture of PVOH, chitosan, an alkali metal or ammonium bisulfite or metabi sulfite, and optional ingredients such as plasticizers, antioxidants, UV stabilizers, surfactants, crosslinking agents, lubricants, and extenders, is disclosed. Also disclosed are a method of making a film from the composition, a resulting film, and a packet made from the film and containing a cleaning composition such as a rinse additive. The composition can be formulated to yield an article such as a film which is soluble only below a predetermined pH threshold.Type: ApplicationFiled: November 13, 2007Publication date: April 29, 2010Applicant: MONOSOL, LLCInventors: Andrew P. Verrall, Solomon E. Brown, Dennis Allen Beckholt
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Publication number: 20100012902Abstract: A multi part hydrosilylation curable silicone elastomer composition comprising (i) an organopolysiloxane comprising at least two unsaturated groups and having a viscosity of at least 1,000 mPas at 25° C.; (ii) inorganic filler having a hydrophilic surface; (iii) a filler treating agent comprising an organopolysiloxane comprising at least 2 hydroxy or otherwise hydrolysable groups, or a mixture thereof and having an average degree of polymerisation of from 2 to 50; (iv) an organohydrogensiloxane having an average of greater than two silicon bonded hydrogen atoms per molecule having a viscosity of up to about 10 PaS at 25° C.; (v) a hydrosilylation catalyst; and/or a treated filler obtained by the reaction of (ii) and (iii) above characterised in that the filler treating agent (iii) and/or treated filler is packaged separately from organohydrogensiloxane (iv) prior to curing.Type: ApplicationFiled: June 26, 2007Publication date: January 21, 2010Inventor: Lawrence Joseph Rapson
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Publication number: 20090306250Abstract: A construction material that includes gypsum and a heat fusion catalyst which includes polyvinyl acetate and a polymer, plus a chemical agent for maintaining a stable emulsion of the polyvinyl acetate and polymer. Cement and/or aggregate materials may be added to the gypsum. The material may be prepared by mixing the catalyst with the powder portion, and then either molding it into a building panel or applying it as a coating on a building member.Type: ApplicationFiled: June 4, 2008Publication date: December 10, 2009Inventor: Patricia J. BILLINGS
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Publication number: 20090209692Abstract: The invention relates to the use of at least one polymer containing at least one monomer selected from acrylic acid or methacrylic acid or mixtures thereof and at least one monomer which is the maleic anhydride as a dispersing and/or grinding aid agent in a fabrication process of an aqueous dispersion and/or suspension of mineral materials, wherein the molar ratio r (acrylic acid and/or methacrylic acid:(maleic anhydride) is strictly confined to the range between 2:1 and 0.1:1. Another object of the invention consists in the aqueous dispersions and suspensions of mineral materials thus produced and the use thereof in the fabrication of plastics, paper and paintworks.Type: ApplicationFiled: July 4, 2007Publication date: August 20, 2009Applicant: COATEX S.A.S.Inventors: Jean-Marc Suau, Olivier Guerret, Jean-Bernard Egraz, Jacques Mongoin, Christian Jacquemet
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Patent number: 7550524Abstract: A filled elastomer composition comprises: a) at least one rubber component; b) at least one particulate filler; and, c) at least one mercaptofunctional silane of a particular structure.Type: GrantFiled: October 6, 2006Date of Patent: June 23, 2009Assignee: Momentive Performance Materials Inc.Inventors: Antonio Chaves, Eric Raymond Pohl, Richard W. Cruse, Daniel Gurovich
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Publication number: 20090062413Abstract: The use of high aspect fillers in the production of simulated stone, masonry and brick textured products such as cladding, siding, panels, or other building and construction materials. High aspect fillers increase the dimensional stability, rigidity, thermal and sound insulation. The high aspect fillers may be included into a matrix polymer with or without chemical bonding. The disclosed invention is not limited to products in the building or construction industries and may be applied in the manufacture of a wide variety of products in other industries.Type: ApplicationFiled: March 27, 2008Publication date: March 5, 2009Applicant: Crane Building Products LLCInventors: Ashok M. Adur, Kurt Kuriger, Larry R. Fairbanks, Paul Anthony Crist, Paul J. Mollinger, John P. Frechette
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Publication number: 20090054558Abstract: Pulverulent polycondensation products are described, consisting of a) 5 to 95% by weight of a polycondensation product based on an aromatic or heteroaromatic compound (A) having 5 to 10 C atoms or heteroatoms having at least one oxyethylene or oxypropylene radical and one aldehyde (C) selected from the group consisting of formaldehyde, glyoxylic acid and benzaldehyde or mixtures thereof, and b) 5 to 95% by weight of a finely divided mineral carrier material having a specific surface area of 0.5 to 500 m2/g (according to BET as specified in DIN 66 131). The pulverulent polycondensation products according to the invention are outstandingly suitable in construction material mixtures in an amount of from 0.1 to 5% by weight, based on the weight of the construction material. The pulverulent polycondensation products have a number of advantages here, such as, for example, excellent storage stability, good liquefying action at low dosage and industrially simple production.Type: ApplicationFiled: December 18, 2006Publication date: February 26, 2009Applicant: CONSTRUCTION RESEARCH & TECHNOLOGY GMBHInventors: Philipp Wieland, Alexander Kraus, Gerhard Albrecht, Harald Grassl, Kerstin Becher
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Publication number: 20090030113Abstract: The invention relates to new universal pigment preparations having very good thermal stability and weathering stability as virtually foam-free aqueous, solventborne, and solvent-free pigment preparations and to their use in aqueous, solventborne or solvent-free coating materials, such as paints, adhesives, inks, including printing inks, and for coloring plastics.Type: ApplicationFiled: November 3, 2006Publication date: January 29, 2009Applicant: Evonil Degussa GmbHInventors: Patrick Glockner, Evelny Albrecht, Andreas Stuttgen, Andreas Wenning
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Publication number: 20090017221Abstract: The invention relates to a photosensitive dispersion with adjustable viscosity for metal deposition on an insulating substrate, which combines the following: a pigment providing oxidation-reduction properties under light irradiation, a metallic salt, a complex-forming agent for the metallic salt, a liquid film-forming polymer formulation, a basic compound, an organic solvent and water. The invention also relates to the use of said dispersion.Type: ApplicationFiled: August 20, 2008Publication date: January 15, 2009Inventors: Olivier Dupuis, Mary-Helene Delvaux
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Publication number: 20080319115Abstract: The invention relates to a process for the preparation of surface-modified inorganic fillers or pigments of a defined grain size, characterized in that filler or pigment slurries of inorganic fillers or pigments having a defined grain size are milled with the action of pressure and/or shear forces using polymer dispersions.Type: ApplicationFiled: October 27, 2006Publication date: December 25, 2008Applicant: ALPHA CALCIT FUELLSTOFF GESELLSCHAFT MBHInventor: Dieter Munchow
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Publication number: 20080305252Abstract: The invention provides a composition useful as a joint compound comprising water, a filler comprising one or more of calcium carbonate, calcium sulfate dihydrate or calcium sulfate hemihydrate, a binder and/or a biocide, wherein the composition after curing is formaldehyde-free.Type: ApplicationFiled: June 6, 2008Publication date: December 11, 2008Applicant: UNITED STATES GYPSUM COMPANYInventors: Scott D. CIMAGLIO, Charles D. BYERS, Charles J. MILLER
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Publication number: 20080286474Abstract: A method of preparing a hydrophobic mineral and/or filler material, for example a gypsum material, comprises (i) preparing a hydrolyzate containing polysiloxanes by hydrolyzing a hydrolysable silane or hydrolysable silane mixture in the presence of an acid hydrolysis catalyst; and (ii) combining the polysiloxane hydrolyzate with the mineral and/or filler, and optionally water and/or a catalyst for condensation of the hydrolysate.Type: ApplicationFiled: July 13, 2006Publication date: November 20, 2008Inventor: Pierre Maurice Chevalier
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Publication number: 20080269392Abstract: To provide a hardly colored curable composition having an excellent storage stability while maintaining fast curing properties. A curable composition which comprises a polymer (P) having a polyoxyalkylene chain and a group of the following formula (1) and a compound (S) having a mercapto group and a group of the following formula (2), and which contains from 0.01 to 0.50 part by mass of the compound (S) per 100 parts by mass of the polymer (P): —Si(—X1)3 ??(1) —Si(—X2)m(—Y2)3-m ??(2) wherein symbols have the following meanings: X1 and X2: each independently a C1-6 alkoxy group, Y2: a C1-6 alkyl group, and m: 1, 2 or 3.Type: ApplicationFiled: June 26, 2008Publication date: October 30, 2008Applicant: Asahi Glass Company, LimitedInventors: Yuuji KIMURA, Tatsuhiro Futami, Hideaki Tanaka, Genichirou Enna
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Publication number: 20080176985Abstract: A film-forming composition made from a mixture of PVOH, chitosan, an alkali metal or ammonium bisulfite or metabisulfite, and optional ingredients such as plasticizers, antioxidants, UV stabilizers, surfactants, crosslinking agents, lubricants, and extenders, is disclosed. Also disclosed are a method of making a film from the composition, a resulting film, and a packet made from the film and containing a cleaning composition such as a rinse additive. The composition can be formulated to yield an article such as a film which is soluble only below a predetermined pH threshold.Type: ApplicationFiled: April 10, 2007Publication date: July 24, 2008Inventors: Andrew P. Verrall, Solomon E. Brown, Dennis A. Beckholt
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Publication number: 20080139724Abstract: Method for stabilizing polyvinylpyrrolidones, which comprises treating the polyvinylpyrrolidones with sulfur dioxide, sulfurous acid or alkali metal sulfites and then with free-radical scavenger, and converting the solutions treated in this way into the powdered polyvinylpyrrolidones by drying.Type: ApplicationFiled: February 8, 2006Publication date: June 12, 2008Applicant: BASF AKTIENGESELLSCHAFTInventors: Karl Kolter, Ivette Garcia Castro, Olga Pinneker, Ralf Widmaier, Karl-Hermann Strube, Bernhard Fussnegger, Manfred Kroll, Frank Hofer, Hermann Ascherl, Peter Schmidt
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Publication number: 20080021139Abstract: A series of mixtures of N-butyl cyanoacrylate and 2-octyl-cyanoacrylate monomers having specific and differing concentrations of free radical inhibitor/antioxidant stabilizers for each mixture of the two monomers. This results in cyanoacrylate compositions that can withstand radiation such as E-beam and gamma radiation at any desired level and not be adversely affected.Type: ApplicationFiled: July 18, 2006Publication date: January 24, 2008Inventors: Donald S. Blacklock, Thomas J. Berger
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Patent number: 7157503Abstract: An antibacterial, antifouling paint for construction materials contains a coating resin composition and powdery metal-modified apatite. Part of metal atoms in the apatite crystal structure is provided by an optically catalytic metal. Preferably, the metal-modified apatite is a calcium hydroxyapatite which has part of its Ca atoms substituted by Ti.Type: GrantFiled: December 2, 2004Date of Patent: January 2, 2007Assignee: Fujitsu LimitedInventor: Masato Wakamura
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Patent number: 6899822Abstract: An oxygen-absorbing composition for use as a component of a plastic packaging material which includes in relatively sufficient proportions iron, acidifier and electrolyte.Type: GrantFiled: November 18, 2002Date of Patent: May 31, 2005Assignee: Multisorb Technologies, Inc.Inventor: George E. McKedy
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Patent number: 6767949Abstract: The invention relates to a composition comprising, a) at least one oligomer, cooligomer, polymer or copolymer or blends thereof, containing a stable free nitroxyl radical (1); and b) a reducing agent; with the proviso that the composition is essentially free of a polymerizable monomer.Type: GrantFiled: May 22, 2002Date of Patent: July 27, 2004Assignee: Ciba Specialty Chemicals CorporationInventors: Rudolf Pfaendner, Michael Roth, Wiebke Wunderlich
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Patent number: 6753371Abstract: A fluorine rubber composition used for the surface layer material of a fixing member to fix a toner transferred onto a recording material comprises fluorine rubber having a polymerization degree based on vinylidene fluoride. The fixing member includes a base material, and a surface layer material disposed on the surface of the base material, and the surface layer material contains fluorine rubber having a polymerization degree base on vinylidene fluoride. Preferably, the fluorine rubber composition contains a reinforcing agent, antacid, vulcanizing agent, vulcanization accelerator, spherical filler, and solvent. Preferably, the fixing member has numerous fine convex portions on its surface. Accordingly, the amount of the toner adhering to the surface of the fixing member is reduced. Thus, generation of offset trouble can be reliably prevented for a long period of time. As a result, the durability of the fixing member will be improved.Type: GrantFiled: May 24, 2001Date of Patent: June 22, 2004Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Yoshihiro Kiyomura, Hirofumi Kama, Hiroyuki Noda
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Patent number: 6703437Abstract: A resin composition for electrostatic coating, comprising a rubber-reinforced aromatic vinyl resin (A), a polyamide elastomer (B), a modified vinyl polymer (C) containing at least one functional group selected from among carboxyl, epoxy, amino and amido, and an alkali metal salt (D); a formed resin article excellent in electrostatic coatability which is formed from the resin composition; and a formed resin article having electrostatic coating film which is produced by coating the articles electrostatically.Type: GrantFiled: December 12, 2000Date of Patent: March 9, 2004Assignees: Nippon A & L Inc., Honda Giken Kogyo Kabushiki KaishaInventors: Shiro Kamiyama, Katsumi Kohama, Hiromichi Aoki, Hajime Sakano, Yasunobu Takagawa
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Patent number: 6617379Abstract: N,N′-piperazinebis(neopentylglycol)phosphoramidate is used in combination with at least one co-additive which is (i) melamine, (ii) one or more melamine compounds or derivatives, or (iii) both of (i) and (ii) to provide effective flame retardancy in thermoplastic polymers. With polymers that tend to release trace amounts of acid under thermal processing conditions, a hydrotalcite is preferably included in the composition. In acid-sensitive polymers such as polyesters, the N,N′-piperazinebis(neopentylglycol)phosphoramidate should be free or essentially free of acid species as determinable by use of nmr, mass spec, and/or HPLC.Type: GrantFiled: December 4, 2001Date of Patent: September 9, 2003Assignee: Albemarle CorporationInventors: Anteneh Z. Worku, Daniel A. De Schryver, Susan D. Landry, Arthur G. Mack
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Publication number: 20020161084Abstract: The present invention provides a deproteinized natural rubber latex wherein coagulation of a rubber component does not occur when the concentration of calcium ions (Ca2+) is 0.01 mol/L or less and coagulation of the rubber component occurs when the concentration of Ca2+ is 0.1 mol/L or more; a method of preparing the deproteinized natural rubber latex, which comprises adding a protease and two or more surfactants having different coagulation properties to calcium ions (Ca2+) to a natural rubber latex and maturing the natural rubber latex; a rubber product using the deproteinized natural rubber latex; and a proteolytic agent comprising a protease and two or more surfactants.Type: ApplicationFiled: February 26, 2002Publication date: October 31, 2002Inventors: Naoya Ichikawa, Yoshiaki Miyamoto
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Patent number: 6451905Abstract: Shear stable aqueous emulsion of amino modified siloxanes may be made by the addition of a mono acid to the emulsion. These compositions may include acids such as (a) hydroxy carboxylic acids; (b) amino dicarboxylic acids; (c) amic acids; (d) monoesters of dicarboxylic acids; (e) monoesters of di-inorganic acids; and (f) diesters of tri-inorganic acids.Type: GrantFiled: February 16, 1999Date of Patent: September 17, 2002Assignee: Crompton CorporationInventors: Kostantinos Spyropoulos, Sue L. Yang, Angelo J. Sabia, Joseph Pavlenyi
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Patent number: 6077809Abstract: A novel high-porosity adsorbent material for selective adsorption of fluoride ions, arsenic ions and phosphate ions as well as a method for the preparation thereof are disclosed. The adsorbent material consists of a porous carrier material such as crosslinked polyacrylate resin beads and a crystalline hydrous zirconium oxide impregnating the pores of the carrier in the monoclinic or cubic crystal form.Type: GrantFiled: June 30, 1998Date of Patent: June 20, 2000Assignee: Japan as represented by Director General of Agency of Industrial Science and TechnologyInventors: Toshishige Suzuki, Hideyuki Matsunaga, Toshiro Yokoyama
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Patent number: 5979529Abstract: An adherent rubber composition suitable for use in the adhesion to steel cords comprises given amounts of an inorganic salt hydrate and sulfur based on 100 parts by weight of rubber ingredient comprising not less than 10% by weight of at least one synthetic rubber and the remainder being natural rubber.Type: GrantFiled: October 30, 1998Date of Patent: November 9, 1999Assignee: Bridgestone CorporationInventors: Shinsuke Nakane, Kanji Fujiki
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Patent number: 5952440Abstract: A curable, alkaline, melamine modified phenol-formaldehyde resin is prepared from an initial phenol-formaldehyde resole resin containing from 0.5 to 2.5 percent of free formaldehyde by scavenging formaldehyde with 1 to 12 parts of melamine for each 100 parts of the initial resin wherein the molar ratio of formaldehyde to melamine is 0.2 to 1.5 moles of formaldehyde for each mole of melamine to reduce the free formaldehyde to less than 70% of that in the initial resin and prepare a storage stable resin which contains less than 0.7% of free formaldehyde and which maintains its stability under application conditions. An ammonium salt of strong acid and additional water is incorporated in the melamine modified resin to prepare an alkaline binder. The binder is sprayed on to fiberglass with low formaldehyde emissions, good stability and rapid cure in the acid range.Type: GrantFiled: November 3, 1997Date of Patent: September 14, 1999Assignee: Borden Chemical, Inc.Inventors: Wayne R. Walisser, Calvin K. Johnson
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Patent number: 5942567Abstract: A resin-molded product includes a phenol-based oxidation inhibitor, and a thiol-based compound. The thiol-based compound reacts chemically with a coloring substance (or a compound having a quinone-type structure) resulting from the phenol-based oxidation inhibitor to interrupt a long conjugated system arising in the coloring substance. As a result, the absorption due to the coloring substance is canceled in the visible light region. Thus, the resin-molded product is inhibited from yellowing.Type: GrantFiled: June 27, 1996Date of Patent: August 24, 1999Assignees: Toyota Jidosha Kabushiki Kaisha, Kabushiki Kaisha Toyota Chuo KenkyushoInventors: Kaoru Inoue, Takeyoshi Nishio, Arimitsu Usuki, Hisato Takeuchi
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Patent number: 5941037Abstract: An oxygen scavenging agent and compositions capable of providing good oxygen absorption capabilities which contain said agent, wherein the agent is a modified anionic hydrotalcite particulate material.Type: GrantFiled: November 21, 1997Date of Patent: August 24, 1999Assignee: W. R. Grace & Co.-ConnInventors: John Scott Hallock, Drew Ve Speer
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Patent number: 5763738Abstract: A composition and methods for converting a chrysotile asbestos-containing material to a non-regulated environmentally benign solid which comprises a fluoro acid decomposing agent capable of dissociating the chrysotile asbestos to non-regulated components, wherein non-regulated components are non-reactive with the environment, and a binding agent which binds the non-regulated components to form an environmentally benign solid.Type: GrantFiled: September 27, 1996Date of Patent: June 9, 1998Assignee: Associated Universities, Inc.Inventors: Toshifumi Sugama, Leon Petrakis
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Patent number: 5744539Abstract: A polytetrafluoroethylene dispersion consisting essentially of a stable dispersion of finely divided polytetrafluoroethylene particles and a polymeric dispersing agent in a lubricating oil, the dispersions being substantially free of polytetrafluoroethylene sedimentation, together with lubricating oils containing such dispersions and processes for producing the dispersions.Type: GrantFiled: January 13, 1997Date of Patent: April 28, 1998Inventors: Frederic C. McCoy, John P. Fay
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Patent number: 5539055Abstract: An antistatic nonflammable resin composition comprising: (A) 30 to about 80 weight percent a styrene resin; (B) 70 to about 20 weight percent of a vinyl chloride resin; (C) 0.5 to about 5 weight parts based on (A)+(B) of at least one antistatic agent selected from the group consisting of alkyl sulfonates and alkyl benzene sulfonates; and (D) 0.1 to about 5 weight parts based on (A)+(B) of at least one organic tin stabilizer containing sulfur. Molded articles from said composition possess a good appearance, excellent antistatic property and dust-repellency on the surface thereof.Type: GrantFiled: February 15, 1995Date of Patent: July 23, 1996Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Kenji Nishimoto, Yoshihiko Hashimoto
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Patent number: 5496923Abstract: A purification process of an aliphatic polyester prepared in the presence of a catalyst from a hydroxycarboxylic acid or a cyclic ester of a hydroxycarboxylic acid, or a combination of an aliphatic polyhydric alcohol with an aliphatic polybasic acid, or a mixture of these compounds, comprising deactivating the catalyst while maintaining the aliphatic polyester in a molten or dissolved state, or insolubilizing and separating the catalyst and successively removing low molecular compounds. The process can provide aliphatic polyester which has a low content of unreacted monomers and low molecular weight compounds and is excellent in heat resistance and weatherability.Type: GrantFiled: September 14, 1994Date of Patent: March 5, 1996Assignee: Mitsui Toatsu Chemicals, Inc.Inventors: Hiroshi Suizu, Masatoshi Takagi, Masanobu Ajioka, Akihiro Yamaguchi
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Patent number: 5470899Abstract: A process for reducing the pH of anionic polyurethane dispersions which are stabilized by carboxylate or sulfonate groups, which comprises adding a compound which has from one to four ester groups but no acid group or acid halide or anhydride group to the dispersions.Type: GrantFiled: December 28, 1993Date of Patent: November 28, 1995Assignee: BASF AktiengesellschaftInventors: Erich Gulbins, Karl Haeberle, Ulrike Licht, Alexander Wallon