A Single C=o Group Patents (Class 524/336)
  • Patent number: 11236247
    Abstract: Disclosed herein are embodiments of (i) a novel stabilizer including a stable nitroxide free radical which can function as a light-stabilizer and/or a heat-stabilizer, and (ii) compositions including the stable nitroxide free radical.
    Type: Grant
    Filed: January 30, 2019
    Date of Patent: February 1, 2022
    Assignee: Chromatic Technologies, Inc.
    Inventors: Ruizheng Wang, Timothy J. Owen, Qi Wang
  • Patent number: 10647792
    Abstract: Particulate ultra high molecular weight polyethylene (pUHMWPE) are disclosed having an intrinsic viscosity (IV) of at least 4 dl/g, a molecular weight distribution Mw/Mn of less than 4.0, a median particle size D50 of between 50 and 200 ?m, a residual Ti-content of less than 10 ppm, a residual Si-content of less than 50 ppm, and a total ash content of less than 1000 ppm.
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: May 12, 2020
    Assignee: DSM IP ASSETS B.V.
    Inventors: John Richard Severn, Romain Berthoud, Timothy James Kidd
  • Patent number: 10322207
    Abstract: An antiseptic composition for use as bone cement, in particular an antiseptic polymethylmethacrylate bone cement. The composition can be cured and comprises a pharmacologically tolerable salt of a monoperoxy dicarboxylic acid, whereby the salt of the monoperoxy dicarboxylic acid can be dissolved from the composition in the presence of water. Preferably, the salt of the monoperoxy dicarboxylic acid in the composition is used in the form of a powder, whereby the powder has a mean particle size of not more than 250 ?m. Preferably, the salt of the monoperoxy dicarboxylic acid, in solution at room temperature, is not degraded within 5 min by the catalase enzyme.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: June 18, 2019
    Assignee: HERAEUS MEDICAL GMBH
    Inventors: Sebastian Vogt, Lorena Calderón Ortiz
  • Patent number: 10161222
    Abstract: Fluids containing surfactants and hydrophobic particles are effective media for cleaning non-aqueous fluids (NAFs) out of a subterranean wellbore. The fibers and surfactants are preferably added to a drilling fluid, a spacer fluid, a chemical wash, a cement slurry or combinations thereof. NAFs, such as an oil-base mud or a water-in-oil emulsion mud, are attracted to the fibers as the treatment fluid circulates in the wellbore.
    Type: Grant
    Filed: November 5, 2014
    Date of Patent: December 25, 2018
    Assignee: Schlumberger Technology Corporation
    Inventors: Diankui Fu, Soo Hui Goh
  • Publication number: 20150140266
    Abstract: A biaxially stretched polypropylene film for a capacitor containing an isotactic polypropylene. The weight average molecular weight (Mw) of the isotactic polypropylene as measured by gel permeation chromatography (GPC) is 250,000 to 450,000, the molecular weight distribution Mw/Mn is 7 to 12 and Mz/Mn is 20 to 40, and the value of a difference obtained by subtracting a differential distribution value when the logarithmic molecular weight Log(M)=6 from a differential distribution value when Log(M)=4.5 on a molecular weight distribution curve thereof is 8% to 20%. The ultrathin biaxially stretched polypropylene film for a capacitor has superior heat resistance performance and withstands voltage performance.
    Type: Application
    Filed: January 8, 2013
    Publication date: May 21, 2015
    Applicant: OJI Holdings Corporation
    Inventors: Tadakazu Ishiwata, Yuichi Shishido
  • Publication number: 20140220273
    Abstract: The present invention relates to a polymer composition containing polycarbonate with a weight-average molecular weight Mw of from 24,000 to 33,000 and 5.0 wt. % to 20.0 wt. % (based on the total amount of the composition) of glass hollow spheres with an alkalinity of less than 1.0 meq/g. The present invention furthermore provides coextruded sheets in which the coextruded layer contains this polymer composition, and shaped articles produced therefrom, in particular containers and pieces of luggage, very particularly suitcases. Sheets which are obtainable with the polymer composition according to the invention have a high mechanical stability, a high scratch resistance, pleasant haptic properties and an excellent homogeneous external visual impression. The present invention furthermore relates to a process for the preparation of these polymer compositions and a process for production of the sheets according to the invention.
    Type: Application
    Filed: August 7, 2012
    Publication date: August 7, 2014
    Applicant: Bayer Intellectual Property GmbH
    Inventors: Ulrich Blaschke, Heinrich Hähnsen, Peter Schwarz, Klaus Kraner, Hans-jürgen Thiem, Michael Wagner
  • Publication number: 20140107257
    Abstract: A flame retardant composition is produced by mixing a flammable organic material with an inorganic phosphorus-inorganic phosphoric oxyacid compound or its salts. The inorganic phosphorus-inorganic phosphoric oxyacid compounds are produced by reacting an inorganic phosphorus compound having a valence of 3-4 with an inorganic phosphorus oxyacid with a valence of 5. Carbonization auxiliaries, metal-containing compound having a carbonization acceleration effect, a comb-like polymer and a filler may be added with the flame retardant composition.
    Type: Application
    Filed: October 12, 2012
    Publication date: April 17, 2014
    Inventor: David H. Blount
  • Patent number: 8669306
    Abstract: It is an object of the present invention to provide a curable composition which provides a cured product excellent in low warpage properties and long-term electrical insulation reliability and causes little bleeding during screen printing. The present invention is a curable composition comprising the following components (a) to (e): a component (a): polyurethane having a functional group capable of curing reaction and a carbonate bond, a component (b): ?-butyrolactone, a component (c): diethylene glycol diethyl ether, a component (d): inorganic fine particles and/or organic fine particles, and a component (e): a compound having two or more epoxy groups in one molecule.
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: March 11, 2014
    Assignee: Showa Denko K.K.
    Inventors: Kazuhiko Ooga, Kazuya Kimura, Atsushi Umino, Ritsuko Azuma
  • Patent number: 8586648
    Abstract: An aqueous colorant dispersion including a colorant (A), a polymer (B), and an aqueous liquid medium (I), wherein the polymer (B) is a copolymer including a hydrophilic structural unit and a hydrophobic structural unit, the content of the hydrophobic structural unit in the polymer (B) being more than 80% by mass but less than 100% by mass, the hydrophobic structural unit includes a hydrophobic structural unit (a) having an aromatic ring linked via a linking group to an atom included in the main chain of the polymer (B), the content of aromatic rings in the polymer (B) is 10% by mass or more but less than 20% by mass with respect to the mass of the polymer (B), the hydrophilic structural unit includes a hydrophilic structural unit (b) including an ionic group, and the polymer (B) includes a structural unit (c) different from the hydrophobic structural unit (a) and from the hydrophilic structural unit (b), the content of the structural unit (c) in the polymer (B) being more than 15% by mass but less than 90% by
    Type: Grant
    Filed: February 24, 2009
    Date of Patent: November 19, 2013
    Assignee: FUJIFILM Corporation
    Inventors: Takafumi Hosokawa, Misato Sasada, Naoya Shibata
  • Publication number: 20120328893
    Abstract: The instant invention relates to a method for the color stabilization of cork and specific colored woods by the combined use of a small amount of inorganic UV-absorbers and an excess of organic UV-absorbers in a protective coating. A further aspect of the invention is the use of such a UV-absorber combination for the color stabilization of cork and specific colored woods.
    Type: Application
    Filed: September 7, 2012
    Publication date: December 27, 2012
    Inventors: CHRISTIAN MARCUS SCHALLER, RAPHAEL MEYER
  • Patent number: 8299146
    Abstract: Golf ball 2 has core 4, cover 6 and paint layer 12. The base polymer of the cover 6 includes a thermoplastic polyurethane elastomer. The cover 6 includes one or more kinds of ultraviolet ray absorbing agents. The paint layer 12 includes one or more kinds of ultraviolet ray absorbing agents. There are one or more kinds of ultraviolet ray absorbing agents (common ultraviolet ray absorbing agent) included in the cover 6 and the paint layer 12. The cover 6 includes the common ultraviolet ray absorbing agent in an amount of A parts by weight per 100 parts by weight of the base polymer, and the paint layer 12 includes the common ultraviolet ray absorbing agent in an amount of B parts by weight per 100 parts by weight of the resin component, with the ratio (A/B) being preferably 0.1 or greater and 10 or less. Preferably, the thermoplastic polyurethane elastomer is an MDI based polyurethane elastomer.
    Type: Grant
    Filed: August 12, 2008
    Date of Patent: October 30, 2012
    Assignee: SRI Sports Limited
    Inventors: Keiji Ohama, Hirotaka Nakamura
  • Publication number: 20120115995
    Abstract: Automotive interior article comprising a polypropylene composition having a melt flow rate MFR2 (230° C.) of 2.0 to 80.0 g/10 min, said polypropylene composition comprises (a) at least 25 wt.-% of a heterophasic polypropylene (H-PP1), (b) 10,000 to 550,000 ppm inosilicate, (c) 1000 to 5,000 ppm of phenolic antioxidants, and further wherein said heterophasic polypropylene (i) comprises a polypropylene matrix and an elastomeric copolymer, said elastomeric copolymer comprises units from .propylene and .ethylene and/or C4 to C20 ?-olefin (ii) has comonomer content of 8 to 30 wt.-% based on said heterophasic polypropylene, said comonomer is ethylene and/or at least one C4 to C20 ?-olefin, and (iii) has a xylene cold soluble (XCS) content measured according to ISO 6427 of 15.0 to 40.0 wt.-% based on the heterophasic polypropylene.
    Type: Application
    Filed: June 16, 2010
    Publication date: May 10, 2012
    Inventors: Klaus Lederer, Michael Lotte, Erwin Kastner, Juliane Braun, Wolfgang Stockreiter
  • Publication number: 20120082785
    Abstract: A back sheet for a solar cell, consisting of a polyester comprising at least one repeating unit of trimethylene naphthalate and trimethylene terephthalate in an amount of 85% by weight or more, has improved hydrolysis-resistance and is useful in the field requiring weatherability.
    Type: Application
    Filed: June 9, 2010
    Publication date: April 5, 2012
    Applicant: SKC CO., LTD.
    Inventors: Nam Ill Kim, Soo Hee Kim, Sung Jun Yoon
  • Patent number: 8143324
    Abstract: The use of hindered phenol containing anti-oxidants enable arylcyclobutene-based formulations to be cured in oxygen containing environments such as air without unacceptable degradation in key properties of dielectric constant, water uptake, or transmittance.
    Type: Grant
    Filed: October 12, 2005
    Date of Patent: March 27, 2012
    Assignee: Dow Global Technologies LLC
    Inventors: Ying Hung So, Edmund J. Stark, Jack E. Hetzner, Shellene K. Thurston
  • Patent number: 8138248
    Abstract: A method for preparing a polymeric composition, the method comprising providing a polymer cement including a polymer and a solvent, introducing an acetal or ketal of an alditol with the polymer cement, and isolating at least a portion of the polymer and the acetal or ketal of an alditol from the solvent to provide a polymeric composition including the polymer and the acetal or ketal of an alditol.
    Type: Grant
    Filed: December 31, 2008
    Date of Patent: March 20, 2012
    Assignee: Bridgestone Corporation
    Inventors: Kevin McCauley, Terrence E. Hogan, Christopher G. Robertson, Amy M. Randall
  • Patent number: 8106117
    Abstract: A method for reducing the cold flow of a polymeric composition of matter by introducing polymer with the combination or reaction product of (i) an acetal or ketal of an alditol and (ii) (a) a hydrocarbylated boric acid, (b) an organoaluminum compound, or (c) both a hydrocarbylated boric acid and an organoaluminum compound.
    Type: Grant
    Filed: August 5, 2009
    Date of Patent: January 31, 2012
    Assignee: Bridgestone Corporation
    Inventors: Kevin M. McCauley, Terrence E. Hogan, Zbyslaw R. Owczarczyk, Amy M. Randall
  • Patent number: 7799433
    Abstract: A silicone-based pressure-sensitive adhesive comprising: (A) a mixture or a product of partial condensation of (a) a raw rubberlike organopolysiloxane having an average of at least one alkenyl group per molecule and (b) an organopolysiloxane resin consisting essentially of R13SiO1/2 units and SiO4/2 units; (B) an organopolysiloxane having an average of at least two silicon-bonded hydrogen atoms per molecule; (C) a phenol-type oxidation inhibitor and/or a phenol-modified organosiloxane; (D) an aromatic amino-type oxidation inhibitor and/or aromatic amino-modified organosiloxane; and (E) a platinum-based catalyst, can form a pressure-sensitive adhesive layer that maintains good removability after being exposed to high temperatures.
    Type: Grant
    Filed: June 20, 2005
    Date of Patent: September 21, 2010
    Assignee: Dow Corning Toray Company, Ltd.
    Inventors: Akihiro Nakamura, Teruhito Maruyama
  • Publication number: 20090275673
    Abstract: The use of hindered phenol containing anti-oxidants enable arylcyclobutene-based formulations to be cured in oxygen containing environments such as air without unacceptable degradation in key properties of dielectric constant, water uptake, or transmittance.
    Type: Application
    Filed: October 12, 2005
    Publication date: November 5, 2009
    Inventors: Ying Hung So, Edmund J. Stark, Jack E. Hetzner, Shellene K. Thurston
  • Publication number: 20090258240
    Abstract: The instant invention relates to a method for the color stabilization of cork and specific colored woods by the combined use of a small amount of inorganic UV-absorbers and an excess of organic UV-absorbers in a protective coating. A further aspect of the invention is the use of such a UV-absorber combination for the color stabilization of cork and specific colored woods.
    Type: Application
    Filed: October 25, 2006
    Publication date: October 15, 2009
    Inventors: Christian Marcus Schaller, Raphael Meyer
  • Patent number: 7585906
    Abstract: A thermoplastic composition includes particular amounts of a poly(arylene ether), a hydrogenated block copolymer, a plasticizer, a white pigment, and an ultraviolet radiation stabilizer. The composition exhibits excellent light stability, and it is particularly useful for forming white or off-white cable insulation.
    Type: Grant
    Filed: February 28, 2007
    Date of Patent: September 8, 2009
    Assignee: Sabic Innovative Plastics IP B.V.
    Inventors: Steven Raymond Klei, James Edward Pickett, James Jun Xu
  • Patent number: 7576150
    Abstract: A thermoplastic composition includes particular amounts of a poly(arylene ether), a hydrogenated block copolymer, a copolymer of ethylene and an alpha-olefin, a plasticizer, a white pigment, and an ultraviolet radiation stabilizer. The composition exhibits excellent light stability, and it is particularly useful for forming white or off-white cable insulation.
    Type: Grant
    Filed: February 28, 2007
    Date of Patent: August 18, 2009
    Assignee: Sabic Innovative Plastics IP B.V.
    Inventors: Steven Raymond Klei, James Edward Pickett, James Jun Xu
  • Patent number: 7329704
    Abstract: The present invention relates to a cross-linkable or cross-linked rubber composition which is usable to constitute a tire tread having improved wear resistance, to such a tread and to a tire incorporating this tread. A rubber composition according to the invention comprises a diene elastomer of a number-average molecular weight Mn of less than 2000 g/mol which has a glass transition temperature Tg of greater than ?25° C., and it is such that said elastomer comprises one or more units resulting from the polymerisation of a vinylaromatic monomer, such as styrene. The invention applies in particular to tires of passenger-vehicle type.
    Type: Grant
    Filed: March 10, 2005
    Date of Patent: February 12, 2008
    Assignee: Michelin Recherche et Technique S.A.
    Inventor: Gerard Labauze
  • Patent number: 7261845
    Abstract: A plastic lens which absorbs ultraviolet light having wavelength of about 400 nm and suppresses coloring and a process for producing the lens. A plastic lens may be made from a composition which comprises (A) a lens material monomer comprising diethylene glycol bisallylcarbonate, (B) an organic peroxide-based polymerization initiator, (C) a cobalt compound represented by at least one of CoO.Al2O3 and Co.Al2O4, and (D) at least one ultraviolet light absorbent selected from 2-hydroxy-4-octyloxy-benzophenone, 2,2?,4,4?-tetrahydroxy-4-octyloxybenzophenone and 2,2?,4?-trihydroxy-4-octyloxybenzophenone. A process for producing a plastic lens comprises mixing component (A), component (B), a cobalt fluid comprising component (C) in a dispersant and component (D) and a step of casting the mixed fluid into a mold and polymerizing the fluid to obtain a plastic lens.
    Type: Grant
    Filed: September 30, 2004
    Date of Patent: August 28, 2007
    Assignee: Hoya Corporation
    Inventors: Shinsuke Itoh, Masahisa Kosaka
  • Patent number: 6846866
    Abstract: The invention provides polyurethane containing a) a first additive comprising at least one mono-hindered hydroxyphenyl group and having a molecular weight of at least about 300 Daltons; b) a second additive selected from the group consisting of i) condensation polymers of p-cresol and divinyl benzene and ii) compounds comprising at least one unsymmetrically di-hindered hydroxyphenyl group and having a molecular weight of at least about 300 Daltons; and c) an inorganic chlorine-resist additive. The polyurethane of the invention exhibits improved resistance to degradation by chlorine and by atmospheric fumes.
    Type: Grant
    Filed: June 3, 2002
    Date of Patent: January 25, 2005
    Assignee: Invista North America S.a.r.L.
    Inventors: Nathan E. Houser, Gordon W. Selling
  • Patent number: 6846567
    Abstract: A surface-protected plastic composite material comprising a transparent plastic, a coating layer (I) as a first layer stacked on the transparent plastic and a thermally cured coating layer (II) as a second layer stacked on the first layer, the coating layer (I) being formed of a resin composition containing at least 50% by weight, based on the resin content thereof, of an acrylic resin which is an acrylic resin containing at least 50 mol % of recurring unit based on an alkyl methacrylate, the thermally cured coating layer (II) being made of an organosiloxane resin formed from the following components a, b and c, (A) colloidal silica (component a), (B) a hydrolysis condensate (component b) of a trialkoxysilane, (C) a hydrolysis condensate (component c) of a tetraalkoxysilane, the organosiloxane resin containing 5 to 45% by weight of the component a, 50 to 80% by weight of the component b and 2 to 30% by weight of the component c, and use of the composite material as a window glass.
    Type: Grant
    Filed: January 31, 2000
    Date of Patent: January 25, 2005
    Assignee: Teijin Chemicals, Ltd.
    Inventors: Tatsuya Ekinaka, Yoshihiko Imanaka
  • Patent number: 6777473
    Abstract: Compositions comprising one or more olefin polymers functionalized by at least one functionalization agent chosen from carboxylic acids, their esters, their anhydrides and their metal salts and one or more stabilizing agents comprising one or more sterically hindered phenol groups and at most one ester functional group. Process for their preparation and use of these compositions for compatibilizing olefin polymers with polymers, fillers and metal substrates which are incompatible with olefin polymers.
    Type: Grant
    Filed: October 29, 2001
    Date of Patent: August 17, 2004
    Assignee: Solvay Polyolefins Europe-Belgium (Societe Anonyme)
    Inventors: Marie-Paule Collard, Henri Wautier, Eric Fassiau, Eric Vandevijver
  • Publication number: 20040138360
    Abstract: The invention relates to hydrophilic additives for synthetic fibres containing polyolefin; said additives are represented by general formula (I): A-B-C-B-A wherein A is a radical R—COO, wherein R represents a saturated, cross-linked or non-cross-linked alkyl radical having 7-21 C atoms, B represents a group (CnH2nO)k, wherein n is a whole number from 2-4 and k can have a value of 1-15, C represents a linear or cross-linked alkylene radical having at least 2 and at the most 6 C atoms and the radical C can be, optionally, interrupted by oxygen atoms.
    Type: Application
    Filed: November 14, 2003
    Publication date: July 15, 2004
    Inventors: Christine Wild, Raymond Mathis, Paul Birnbrich, Petra Padurschel
  • Patent number: 6599969
    Abstract: A process for preparing stabilized olefin polymers which have a low cold heptane extractables content by polymerization of olefins with Ziegler or Phillips catalysts, wherein the polymer is, immediately after leaving the polymerization reactor, brought into contact with an involatile phenol derivative.
    Type: Grant
    Filed: February 25, 1997
    Date of Patent: July 29, 2003
    Assignee: Basell Polyolefine GmbH
    Inventors: Wolfgang Rohde, Guido Funk, Hans-Helmut Görtz, Rolf Osterloh
  • Patent number: 6538056
    Abstract: What is disclosed are polyolefin compounds, e.g., polyethylene and polypropylene, and articles therefrom made in by conventional solid, melt-phase compounding with oxidized, non-cationized, non-silylated sulfur black pigment, a phenolic antioxidant and a sulfur-containing secondary stabilizer, each in stabilizing amount, specified below, which provide a synergistic improvement in the long term heat aging of polyolefins. Preferably the sulfur black compound is treated by washing, and reduction in the soluble sodium salts. Also disclosed is melt-phase compounded polyolefin and molded articles made therefrom comprising incorporating of carbon black, oxidized, non-cationized, non-silylated sulfur black pigment, a phenolic antioxidant and sulfur-containing secondary stabilizer.
    Type: Grant
    Filed: October 10, 2000
    Date of Patent: March 25, 2003
    Assignee: Clariant International Ltd.
    Inventor: Joseph R. Webster
  • Patent number: 6486247
    Abstract: The invention involves a means of increasing the scorch delay period (scorch time) for standard bisphnol-cured fluoroelastomers (abbreviated as “FKM;” these are copolymers of vinylidene fluoride and hexafluoropropene, optionally also containing additional monomers such as tetrafluoroethylene). The invention entails particular subtituted monophenols (butylparaben or propylparaben) and/or mixtures of these with methylparaben and/or inorganic solids, and the inclusion of these particular substituted monophenols and/or blends in an FKM compound. These particular substituted monophenols are effective as scorch inhibitors of bisphenol-cured FKM, and are also effective as processing aid.
    Type: Grant
    Filed: August 4, 2000
    Date of Patent: November 26, 2002
    Assignee: Immix Technologies, Inc.
    Inventor: Roger W. Faulkner
  • Patent number: 6339119
    Abstract: The present invention is directed to a golf ball containing a cover layer and a core layer, where the core layer is molded from a scorch retarding composition comprising a scorch retarding peroxide, an elastomeric polymer and a cross-linking agent. Preferably, the scorch retarding peroxide is present in an amount sufficient to delay cross-linking of the elastomeric polymer during core layer formation for a time sufficient to substantially prevent backrinding on the molded core layer. The golf balls of the invention may further comprise at least one intermediate layer interposed between the cover layer and the core layer, at least one of the layers being molded from a scorch retarding composition comprising a scorch retarding peroxide, an elastomeric polymer and a cross-linking agent. A method of making such golf balls is also disclosed.
    Type: Grant
    Filed: October 22, 1999
    Date of Patent: January 15, 2002
    Assignee: Acushnet Company
    Inventors: Derek A. Ladd, Steven M. Gosetti
  • Patent number: 6337365
    Abstract: An electronic/electric part used in a clean room in which the atmosphere is controlled to process a substrate in a semiconductor device industry, which contains a resin base material and additives added to the resin base material. The additives contain one or more materials selected from the group consisting of an anti-electrostatic agent made of a nonionic compound of a molecular weight of 350 or higher, an anti-oxidizing agent made of a phenolic compound of a molecular weight of 300 or higher, a lubricant, a plasticizer, a fire retardant, and a water repellent. The additives hardly releases gaseous organic substances from the resin base material under a condition where the part is used.
    Type: Grant
    Filed: September 24, 1999
    Date of Patent: January 8, 2002
    Assignees: Tokyo Electron Limited, Taisei Corporation
    Inventors: Takenobu Matsuo, Tsuyoshi Wakabayashi, Misako Saito, Sadao Kobayashi, Yoshihide Wakayama, Masayuki Imafuku
  • Patent number: 5990208
    Abstract: Blends of polycarbonate with ABS resins are effectively stabilized by a combination of selected non-basic hindered amines containing the 3,3,5,5-tetramethyl-2-oxo-1-piperazinyl moiety and UV absorbers such as benzotriazoles, s-triazines and benzophenones, particularly the benzotriazoles and s-triazines.
    Type: Grant
    Filed: December 15, 1997
    Date of Patent: November 23, 1999
    Assignee: Ciba Specialty Chemicals Corporation
    Inventor: Stephen M. Andrews
  • Patent number: 5981073
    Abstract: Novel dibenzoylresorcinol-based compounds are disclosed wherein the dibenzoylresorcinol is bonded to the residue of either an alcohol or a carboxylic acid group, via a methylene carboxylate linking group; and wherein the dibenzoylresorcinol is bonded directly to a substituted or unsubstituted aryl group which does not include a pendent hydroxyl group. The groups attached to the dibenzoylresorcinol may contain a wide variety of functional sites which permit further reaction, e.g., copolymerization. The described compounds are very useful as UV light absorbers and may be used to form improved coating compositions which usually include a transparent, polymeric matrix material. The coating compositions may be applied to various substrates, e.g., thermoplastics, to afford a selection of enhanced properties, such as UV light resistance and abrasion resistance.
    Type: Grant
    Filed: January 16, 1997
    Date of Patent: November 9, 1999
    Assignee: General Electric Company
    Inventors: James Edward Pickett, Wen P Liao, Amy Kathleen Simonian, Gregory Ronald Gillette
  • Patent number: 5843339
    Abstract: Phosphites represented by the general formula (I): ##STR1## wherein R.sup.1, R.sup.2, R.sup.4 and R.sup.5 independently represent a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, a cycloalkyl group having 5 to 8 carbon atoms, an alkylcycloalkyl group having 6 to 12 carbon atoms, an aralkyl group having 7 to 12 carbon atoms or a phenyl group; R.sup.3 and R.sup.6 independently represent a hydrogen atom or an alkyl group having 1 to 8 carbon atoms; X.sub.1 is a dihydric alcohol residue, wherein HO--X.sub.1 --OH defines the corresponding dihydric alcohol from which residue X.sub.1, is obtained; and X.sub.2 is a direct bond or an alkylene group having 1 to 8 carbon atoms; and the phosphites are useful as stabilizers for organic materials.
    Type: Grant
    Filed: October 1, 1996
    Date of Patent: December 1, 1998
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Kanako Fukuda, Naoki Inui
  • Patent number: 5760119
    Abstract: A method of stabilization of a melt viscosity of aliphatic- and/or aromatic homo- and/or co-polyesters containing catalysts and/or initiators, involves adding a masking agent which is tropon, .alpha.-tropolon, thujaplicin, pupurogallin or mixtures thereof to a melt resulting during synthesis of polyesters or during regeneration of polyesters.
    Type: Grant
    Filed: October 2, 1996
    Date of Patent: June 2, 1998
    Assignee: Fraunhofer-Gesellschaft zur Forderung der Angewandten Forschung e.V.
    Inventors: Gerald Rafler, Olaf Wachsen, Karl-Heinz Reichert
  • Patent number: 5716667
    Abstract: A releasable aqueous coating composition used for temporarily protecting a finished coating film coated on an automobile body. It contains (A) an aqueous acrylic resin obtained by copolymerizing a monomer mixture of a (meth)acrylic ester monomer as an essential component and other polymerizable unsaturated monomer, except for (meth)acrylonitrile, as an optional component, and having a glass transition temperature of 5.degree. to 30.degree. C. and a weight average molecular weight of 20,000 or more, (B) an ultraviolet light absorber, and (C) a water repellent material. A method of temporarily protecting the finished coating film on the automobile body by coating the releasable aqueous coating composition onto a surface of a finished cured coating film coated onto the automobile body.
    Type: Grant
    Filed: April 22, 1996
    Date of Patent: February 10, 1998
    Assignee: Kansai Paint Co., Ltd.
    Inventors: Seiji Kashiwada, Shouji Takahashi, Hiroshi Inoue, Kenya Suzuki
  • Patent number: 5665806
    Abstract: Polyphthalamide formulations containing from 0.1 to about 2 wt % alkali metal halide have a significantly reduced melt viscosity and both filled and untitled resin formulations containing the requisite amount of alkali metal halide are more readily processed by thermal means. When stabilized with a copper-containing stabilizer and, optionally, a polyolefin synergist the formulations exhibit substantially improved dry heat stability and are particularly useful in the production of thermally-stabilized melt spun polyphthalamide fiber for applications where extended exposure to elevated temperatures in air is contemplated.
    Type: Grant
    Filed: February 8, 1996
    Date of Patent: September 9, 1997
    Assignee: Amoco Corporation
    Inventor: Mark G. Reichmann
  • Patent number: 5604281
    Abstract: The ultraviolet- and infrared-ray absorbing polymer composition contains 0.01-1 part by weight of an organic ultraviolet-ray absorbent and 0.001-2 parts by weight of an organic infrared-ray absorbent onto 100 parts by weight of a polycarbonate resin which implies 10-100% by weight of copolyestercarbonate, manufactured by heat-molding process at 210.degree.-245.degree. C. from a mixture of those components. This polymer composition is manufactured easily by an ordinary screw extruder or injection molding machine without strict control of heat-molding temperature, at a high non-defective ratio, said product having a stable effect in absorbing ultraviolet rays and infrared rays, while allowing transmittance of visible radiation rays, thus making it suitable for a wide variety of uses.
    Type: Grant
    Filed: May 2, 1995
    Date of Patent: February 18, 1997
    Assignee: The Japan Carlit Co., Ltd.
    Inventors: Teruaki Kamei, Takao Koya, Masaaki Tamura, Emiko Iwata, Syuko Shindo
  • Patent number: 5602196
    Abstract: Stabilisers of formula I ##STR1## wherein R.sub.1 and R.sub.2 may be C.sub.1 -C.sub.5 alkyl, the substituents R.sub.3 to R.sub.8 may be hydrogen, the variable n may be 1 or 2, and, when n is 1, A may be an alkoxy radical, and, when n is 2, A may be a diamine radical.
    Type: Grant
    Filed: November 27, 1995
    Date of Patent: February 11, 1997
    Assignee: Ciba-Geigy Corporation
    Inventors: Bernard Gilg, Rita Pitteloud
  • Patent number: 5582916
    Abstract: A polyvinyl alcohol film containing at least one of complexes of hydroxybenzophenone compounds having specific structure, and at least one basic compound selected from the group consisting of (i) a hydroxide, carbonate or bicarbonate of an alkali metal, (ii) carbonate or bicarbonate of ammonium, and (iii) an amine compound. The above film is excellent in the effect of blocking ultraviolet radiation in the wavelength range from 360 to 400 nm, and therefore can be used in the optical fields of polarizing sunglasses, the display fields of a liquid crystal display and fields of wrapping materials for clothes or foods as it is or as a laminate of it with other transparent film.
    Type: Grant
    Filed: March 14, 1995
    Date of Patent: December 10, 1996
    Assignee: Mitsubishi Gas Chemical Company, Inc.
    Inventors: Kazuhiro Ohtsu, Osamu Aoki, Masaki Nagata, Junko Baba
  • Patent number: 5281645
    Abstract: The present invention relates to new hydroxybenzophenones containing an ester functional group and to the use of these compounds as UV absorbers in organic polymers. More precisely, the new hydroxybenzophenones are 1,3-di(4-benzoyl-3-hydroxyphenoxy)-2-propanol carboxylates which preferably have a molecular mass of at least 500.These benzophenones can be employed as anti-UV agents in organic polymers, either by themselves or jointly with known benzophenones of lower molecular mass, such as 2-hydroxy-4-alkoxybenzophenones.
    Type: Grant
    Filed: July 24, 1992
    Date of Patent: January 25, 1994
    Assignee: Rhone-Poulenc Chimie
    Inventors: Philippe Chicart, Michel Gay
  • Patent number: 5262459
    Abstract: A weather resistant resin composition comprising a resin, a UV light absorber and a hypophosphite, which has improved weather resistance.
    Type: Grant
    Filed: May 29, 1992
    Date of Patent: November 16, 1993
    Assignee: Sumitomo Chemical Company Limited
    Inventors: Kozo Kotani, Taiichi Sakaya
  • Patent number: 5260361
    Abstract: Disclosed is a coating composition comprising (A) 10 to 70 parts by weight of a poly(meth)acrylate of mono- or polypentaerythritol, (B) 5 to 50 parts by weight of a urethane poly(meth)acrylate having at least two unsaturated double bonds in the molecule, (C) 5 to 50 parts by weight of a poly[(meth)acryloyloxyalkyl] (iso)cyanurate, (D) 2 to 30 parts by weight of an ultraviolet absorber, (E) 0.1 to 10 parts by weight of a photopolymerization initiator, and (F) 0.1 to 5 parts by weight of a hindered amine type light stabilizer, provided that the combined amount of components (A) to (F) is 100 parts by weight. This coating composition can form a crosslinked and cured film having excellent abrasion resistance, surface smoothness, thermal resistance, chemical resistance, durability, weather resistance and adhesion to the substrate.
    Type: Grant
    Filed: November 18, 1992
    Date of Patent: November 9, 1993
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Hiroshi Fukushima, Misao Tamura, Osamu Takemoto, Takaji Kawaguchi
  • Patent number: 5258431
    Abstract: Moldable weather-resistant polyacetal resin compositions exhibiting low surface gloss characteristics are a melt-blend of (A) 100 parts by weight of a polyacetal base resin, (B) between 0.01 to 5 parts by weight of a weather stabilizer, and (C) a surface gloss reducing effective amount of between 1 to 50 parts by weight of a core-shell polymer having a rubbery polymer as the core and a glassy vinyl copolymer having at least one oxygenic polar group as the shell. Molded articles formed of such polyacetal compositions exhibit weather-resistance properties and a reduced surface gloss of at least 35%. Moreover, the ability to imprint a grain-like appearance on the surfaces of the molded articles is enhanced.
    Type: Grant
    Filed: June 19, 1992
    Date of Patent: November 2, 1993
    Assignee: Polyplastics Co., Ltd.
    Inventors: Toru Katsumata, Nobuyuki Matsunaga
  • Patent number: 5212224
    Abstract: Polyamide moulding materials which have been impact-modified with diene and/or acrylic rubbers and can be processed by thermoplastic means and contain special diphenols.
    Type: Grant
    Filed: February 27, 1990
    Date of Patent: May 18, 1993
    Assignee: Bayer Aktiengesellschaft
    Inventors: Rolf-Volker Meyer, Friedrich Fahnler, Rolf Dhein, Martin Wandel
  • Patent number: 5208279
    Abstract: A weather-resistant polyacetal resin composition which comprises(A) 100 part by weight of a polyacetal resin,(B) 0.01 to 5 parts by weight of a weathering (light) stabilizer and(C) 0.5 to 60 parts by weight of a graft copolymer comprising (a) an olefin (co)polymer and (b) one or more vinyl (co)polymers which are chemically bonded to each other to form a branched or crosslinked structure.The surface of a molded article made from the composition is excellent in weathering resistance, so that it undergoes less crack and reduced discoloration.
    Type: Grant
    Filed: June 25, 1991
    Date of Patent: May 4, 1993
    Assignee: Polyplastics Co., Ltd.
    Inventor: Toru Katsumata
  • Patent number: 5191007
    Abstract: Polyvinyl chloride compositions as well as flexible sheets and swimming pool liners of such compositions which contain significant quantities of an ultra high molecular weight polyvinyl chloride resin together with a heat stabilizer, plasticizer and optional additives are disclosed. In preferred compositions: the PVC resin is a mixture of high molecular weight and ultra high molecular weight PVC: the heat stabilizer is a mixed zinc-barium-alkyl phosphite stabilizer; and the composition contains 2-hydroxy-4-(2-hydroxyethoxy) benzophenone as an ultraviolet light absorber.
    Type: Grant
    Filed: September 5, 1991
    Date of Patent: March 2, 1993
    Assignee: Borden, Inc.
    Inventors: Julian Zelazny, David R. Morse
  • Patent number: 5143729
    Abstract: Ultra-violet screening compounds have been combined with hydrophobic fluid and solid-repellent compounds to provide a spray, and ultimately a thin solid adherent layering, deposit or coating for fabrics and the like that simultaneously imparts both fade or photodegradiation-resisting properties, and fluid and soil repellent properties.
    Type: Grant
    Filed: February 25, 1991
    Date of Patent: September 1, 1992
    Assignee: Fadeguard, Inc.
    Inventor: Peter B. Thompson
  • Patent number: 5122555
    Abstract: Polyolefins are stabilized against UV-deterioration by mixing therewith a hindered C-nitro compound having a molecular weight above 500. In a preferred embodiment the hindered C-nitro compound is a nitrated polyolefin. A conventional UV-stabilizer, such as a substituted benzophenone or a hindered piperidine, may be used in combination with the hindered C-nitro compound.
    Type: Grant
    Filed: August 2, 1990
    Date of Patent: June 16, 1992
    Assignee: Akzo NV
    Inventors: Gerald Scott, Sahar Al-Malaika, Liyanaarachchige M. Keerthi-Tillekratne