Solid Polymer Derived From Ethylene Patents (Class 524/581)
  • Publication number: 20150018478
    Abstract: A dielectrically-heatable inventive method employing a polyolefin-based formulation including at least 5 weight percent of a zeolite, ion exchanged with a Group I or II metal, wherein the zeolite includes 21 or less wt % of water, based on zeolite weight, measured as LOI at 575° C. for 1 hour; and a base polymer selected from certain homogeneously branched linear or substantially linear ethylene/?-olefin or homogeneously branched propylene/?-olefin copolymers copolymers, provided that the base polymer has a melt temperature less than 100° C. This formulation may be used to prepare a high frequency (HF) welded article having improved failure and welding strength properties, particularly a weld strength in excess of 7 lb/in (1.23 N/mm).
    Type: Application
    Filed: December 21, 2012
    Publication date: January 15, 2015
    Applicant: DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Laura B. Weaver, Yushan Hu, Jose M. Rego
  • Patent number: 8871834
    Abstract: Use of an talc being coated with an organo-metallic compound in a polymer composition to accomplish a headspace emission of all volatiles together of said polymer composition of equal or below 120 ?g/g.
    Type: Grant
    Filed: June 16, 2010
    Date of Patent: October 28, 2014
    Assignee: Borealis AG
    Inventors: Juliane Braun, Johannes Wolfschwenger
  • Patent number: 8609780
    Abstract: The present invention relates to toughened cyanoacrylate compositions.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: December 17, 2013
    Assignee: Henkel Ireland Limited
    Inventors: Hanns R. Misiak, William Hally, Daniel D. Morrogh
  • Patent number: 8575272
    Abstract: A polymer composition comprising (percent by weight): a) 57%-74%, of a crystalline propylene polymer having an amount of isotactic pentads (mmmm), measured by 13C-MNR on the fraction insoluble in xylene at 25° C., higher than 97.5 molar % and a polydispersity index ranging from 5 to 10; b) 8 to 15%, of an elastomeric copolymer of ethylene and propylene, the copolymer having an amount of recurring units deriving from ethylene ranging from 30 to 50%, and being partially soluble in xylene at ambient temperature; the polymer fraction soluble in xylene at ambient temperature having an intrinsic viscosity value ranging from 2.5 to 3.5 dl/g; and c) 18-28%, of ethylene homopolymer having an intrinsic viscosity value ranging from 1.5 to 4 dl/g; said composition having a value of melt flow rate ranging from 35 to 60 g/10 min, and the amount of hexane extractables lower than 4.0 wt %.
    Type: Grant
    Filed: July 20, 2010
    Date of Patent: November 5, 2013
    Assignee: Basell Poliolefine Italia S.r.l.
    Inventors: Marco Ciarafoni, Paola Massari, Gisella Biondini, Roberto Pantaleoni
  • Patent number: 8501866
    Abstract: Color concentrates for thermoplastic biofiber composites are disclosed. The concentrates employ three factors to achieve concentrated delivery of color to the processing machine and excellent and substantially uniform dispersion of color in the processing machine: melt flow of the concentrate exceeding at least 4 g/10 min. using ASTM D-1238; pellet size of the concentrate such that at least 50 pellets weigh less than one gram; and weight percent of the colorant ingredients in the concentrate exceeding at least 30 weight percent.
    Type: Grant
    Filed: September 24, 2010
    Date of Patent: August 6, 2013
    Assignee: PolyOne Corporation
    Inventors: Peter Prusak, Thomas M. Majewski
  • Publication number: 20130147094
    Abstract: A laser-engravable composition comprises one or more EPDM elastomeric rubbers, at least one of which comprises at least 8 weight % polyene recurring units. This laser-engravable composition of elastomeric rubbers can be quickly crosslinked using sulfur-containing vulcanizing compositions to provide laser-engravable compositions and layers in flexographic printing plate precursors. These precursors can be laser-engraved to provide relief images for flexographic printing.
    Type: Application
    Filed: December 12, 2011
    Publication date: June 13, 2013
    Inventors: Ophira Melamed, Mazi Amiel-Levy
  • Publication number: 20130079448
    Abstract: Silane-grafted polyolefin composition comprising a brominated, flame retardant additive is prepared by a process comprising the step of contacting within a reaction—extrusion zone operated at grafting conditions: A. A polyolefin, B. A hydrolysable unsaturated silane, C. A free radical generator, and D. Halogenated polyaryl alkane, e.g., decabromodiphenyl ethane, such that at least a portion of the hydrolysable unsaturated silane is grafted to the polyolefin. The silane-grafted polyolefin is crosslinked after extrusion from the zone, typically as a wire and cable coating, upon exposure to moisture.
    Type: Application
    Filed: May 11, 2011
    Publication date: March 28, 2013
    Inventor: Michael B. Biscoglio
  • Patent number: 8383732
    Abstract: A static resistant synthetic inter-connectable structural formulation which can support vehicles, heavy equipment, drilling rigs while providing static charge dissipation, resistance to corrosive materials consisting of polyethylene; polyethylene terephthalate, styrene-butadiene rubber; an antistatic material that partially protrudes through a formed outer surface of the formulation; and an ultraviolet stabilizer material.
    Type: Grant
    Filed: June 17, 2011
    Date of Patent: February 26, 2013
    Assignee: HB Green Resources, LLC
    Inventor: Mark L. Phillips
  • Patent number: 8329808
    Abstract: A method for compounding a plastic material is provided, wherein the following steps are carried out: a) providing at least one ethylenic polymer; b) addition of at least one cross-linking agent to the ethylenic polymer; c) at least partial cross-linking of the ethylenic polymer by the cross-linking agent; d) addition of at least one propylenic polymer to the product obtained in step c); and e) at least partial cross-linking of the propylenic polymer with the product obtained in step c). Further, a plastic material producible by this method, and a plastic product made out of it are provided.
    Type: Grant
    Filed: July 30, 2010
    Date of Patent: December 11, 2012
    Assignee: Takata AG
    Inventor: Norbert Väth
  • Patent number: 8324294
    Abstract: High performing nanoparticle compositions suitable for printing, such as by inkjet printing, are provided herein. In particular, there is provided a conductive ink formulation comprising silver nanoparticles which has optimal performance, such as, reduced coffee ring effect, improved adhesion to substrates, and extended printhead de-cap time or latency time. The ink formulation comprises two or more solvents and a resin.
    Type: Grant
    Filed: March 7, 2011
    Date of Patent: December 4, 2012
    Assignee: Xerox Corporation
    Inventors: Yiliang Wu, Jenny Eliyahu, Ping Liu, Nan-Xing Hu
  • Patent number: 7867588
    Abstract: A polyethylene composition is provided that has a density of about 0.945 to about 0.960 g/cm3 and a melt flow index of about 0.1 to about 0.4. The composition is a melt blend of a linear low density polyethylene resin and/or a linear medium low density polyethylene resin, and a high density polyethylene resin. A feature of the composition is that the resins can independently be virgin, recycled, scrap and/or wide specification resins, and mixtures of these. Methods of producing the compositions and extruded, molded and formed plastic articles manufactured from the compositions are presented.
    Type: Grant
    Filed: May 22, 2007
    Date of Patent: January 11, 2011
    Assignee: Media Plus, Inc.
    Inventors: Michael G. Harris, Joseph M. Starita
  • Publication number: 20100305265
    Abstract: A method for compounding a plastic material is provided, wherein the following steps are carried out: a) providing at least one ethylenic polymer; b) addition of at least one cross-linking agent to the ethylenic polymer; c) at least partial cross-linking of the ethylenic polymer by the cross-linking agent; d) addition of at least one propylenic polymer to the product obtained in step c); and e) at least partial cross-linking of the propylenic polymer with the product obtained in step c). Further, a plastic material producible by this method, and a plastic product made out of it are provided.
    Type: Application
    Filed: July 30, 2010
    Publication date: December 2, 2010
    Inventor: Norbert Väth
  • Patent number: 7838591
    Abstract: A process for producing a vulcanized molded article of a rubber composition, which comprises the steps of (1) kneading, at least, 100 parts by weight of a defined ethylene-?-olefin-non-conjugated polyene copolymer rubber (A), 1 to 150 parts by weight of a reinforcement (B), and 1 to 150 parts by weight of a softener (C), (2) mixing the resultant kneaded product with 0.1 to 10 parts by weight of a vulcanizing agent (D), and (3) hot forming the resultant rubber composition; and a vibration-proof material comprising a vulcanized molded article of a rubber composition produced by the above process.
    Type: Grant
    Filed: November 22, 2005
    Date of Patent: November 23, 2010
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Sadayuki Nakano, Tatsuo Sassa
  • Patent number: 7829628
    Abstract: Color concentrates for thermoplastic biofiber composites are disclosed. The concentrates employ three factors to achieve concentrated delivery of color to the processing machine and excellent and substantially uniform dispersion of color in the processing machine: melt flow of the concentrate exceeding at least 4 g/10 min. using ASTM D-1238; pellet size of the concentrate such that at least 50 pellets weigh less than one gram; and weight percent of the colorant ingredients in the concentrate exceeding at least 30 weight percent.
    Type: Grant
    Filed: November 2, 2007
    Date of Patent: November 9, 2010
    Assignee: PolyOne Corporation
    Inventors: Peter Prusak, Thomas M. Majewski
  • Patent number: 7687561
    Abstract: The present invention relates to toughened cyanoacrylate compositions.
    Type: Grant
    Filed: October 5, 2006
    Date of Patent: March 30, 2010
    Assignee: Loctite (R&D) Limited
    Inventor: Hanns R. Misiak
  • Publication number: 20100010155
    Abstract: A method for producing an olefinic thermoplastic elastomer comprising the steps of kneading an olefin copolymer rubber (A) obtained by polymerizing ethylene, an ?-olefin having 3 to 20 carbon atoms and a non-conjugated polyene, a volatile organic solvent (B) and, an olefin resin (C) in an extruder, removing the volatile organic solvent (B) while kneading, then adding a crosslinking agent (E) and further removing the volatile organic solvent (B) while kneading in the extruder to obtain the olefinic thermoplastic elastomer.
    Type: Application
    Filed: December 19, 2007
    Publication date: January 14, 2010
    Applicant: SUMITOMO CHEMICAL COMPANY , LIMITED
    Inventors: Kazuyoshi Fuse, Hironobu Shigematsu, Takeshi Tominaga
  • Patent number: 7390866
    Abstract: The present invention provides curable and cured propylene-based elastomers, optionally including a diene, and having isotactic polypropylene crystallinity, a melting point by DSC equal to or less than 110° C., and a heat of fusion of from 5 J/g to 50 J/g. The present invention also provides blend compositions comprising any of the propylene-based elastomers described herein. The present invention also provides compositions comprising any of the propylene-based elastomers described herein and 1 to 100 parts by weight of inorganic filler per 100 parts of polymer. The present invention also provides films, fibers, fabrics, molded objects, and extruded forms which include any of the inventive compositions described herein.
    Type: Grant
    Filed: November 12, 2004
    Date of Patent: June 24, 2008
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Sudhin Datta, Rul Zhao, Srivatsan Srinivas, Majia Y Amin, Periagaram S Ravishankar
  • Patent number: 7312270
    Abstract: A hose material for a fuel cell which is superior in both of low extraction property and electrical isolation, and which also has excellent mechanical properties, and also a hose manufactured using the hose material. The hose material comprises: (A) an ethylene-propylene copolymer; (B) hydrophobic silica; (C) a peroxide crosslinking agent; and (D) carbon black.
    Type: Grant
    Filed: July 27, 2004
    Date of Patent: December 25, 2007
    Assignee: Tokai Rubber Industries, Ltd.
    Inventors: Ryo Hirai, Ayumu Ikemoto
  • Patent number: 6855756
    Abstract: The present invention relates to a soft polypropylene resin having a melt index falling in a specific range, prepared by melting and kneading a substantial propylene homopolymer or a propylene copolymer composition each having specific properties in the presence of a radical-generating agent. According to the present invention, capable of being provided at a good productivity is a soft polypropylene resin which is useful as an alternative for a polyvinyl chloride resin in the fields of films, sheets, construction materials and the like and which is excellent in fluidity.
    Type: Grant
    Filed: October 19, 2001
    Date of Patent: February 15, 2005
    Assignee: Idemitsu Petrochemical Co., Ltd.
    Inventors: Shinichi Yukimasa, Masato Kijima
  • Patent number: 6841592
    Abstract: Cationic mordants are described that will not significantly interact with anionic dyes in aqueous jet inks, but will form strong complexes with the dyes on the substrate as the water is absorbed and dissipated. The mordants are cationic amide salts of maleated hydrocarbons, and when in aqueous dispersions have an average particle size of less than one micron. These materials result in less feathering of the ink during printing and improved waterfastness of the ink on a paper substrate.
    Type: Grant
    Filed: July 18, 2002
    Date of Patent: January 11, 2005
    Assignee: Baker Hughes Incorporated
    Inventor: Richard J. Nadolsky
  • Patent number: 6803398
    Abstract: An olefin-based thermoplastic elastomer composition comprising a thermoplastic elastomer blended with other resins and rubbers is provided. The thermoplastic elastomer contains polypropylene resin and an olefin-based copolymer rubber, and optionally, a linear polyethylene resin, and the thermoplastic elastomer has been crosslinked to a gel content of 95% or higher. A polyolefin resin, an olefin-based copolymer rubber and a softening agent are further blended with optional inorganic filler to provide the olefin-based thermoplastic elastomer composition. This composition is excellent in oil resistance and extrudability, and well-adapted for use as an energy-saving, resources-saving elastomer in applications including surface or skin material in autoparts, industrial mechanical parts, electric and electronic parts, and construction materials.
    Type: Grant
    Filed: February 28, 2000
    Date of Patent: October 12, 2004
    Assignees: Mitsui Chemicals, Inc., Toyota Motor Corporation
    Inventors: Yuichi Ito, Hiroyasu Yamaoka, Akira Uchiyama, Chika Kako, Hideo Nishimura, Junzo Ukai
  • Patent number: 6756450
    Abstract: A chlorine-free polyolefin-based plastisol or organosol and method for producing the same, where the plastisol or organosol includes: (a) a finely-dispersed polyolefin in (b) 60 to 800 parts by weight (based on 100 parts by weight polyolefin) of a dispersion medium containing monomers which are capable of polyaddition or are polymerizable and copolymerizable, and/or oligomers and/or prepolymers and optionally, liquid softeners; (c) an initiator system suitable for the desired polyaddition and/or polymerization; and optionally (d) up to 700 parts by weight inert fillers and other additives and auxiliary substances. The chlorine-free plastisol or organosol is storage-resistant at room temperature and gelates at high temperatures. The inventive plastisols or organosols are suitable for many applications and represent an advantageous alternative to the plastisols currently in use, e.g. PVC-based plastisols, since they guarantee a number of different combinations of properties.
    Type: Grant
    Filed: May 5, 2003
    Date of Patent: June 29, 2004
    Inventor: Slaweyko Marinow
  • Patent number: 6727317
    Abstract: Unique transparent plastic (preferably though not necessarily polypropylene) articles that can be tailored to become opaque when exposed to a sufficiently high temperature and which returns to substantially the same transparency level upon cooling are provided. Such formulations include polymeric constituents that exhibit melting temperatures well below that for the majority clarified polypropylene, and thus which appear to become amorphous upon exposure to temperatures above such a lower melting temperature, thereby affecting the crystalline formation of the clarified polypropylene to the extent that opacity dominates the appearance thereof. Such lower melting temperature polymeric constituents include species such as low melt flow (up to 10) metallocene polyethylene and/or low density polyethylene, both of which exhibit melting temperatures of from about 60 to about 100° C., well below the typical polypropylene melting temperatures of roughly about 150° C.
    Type: Grant
    Filed: January 25, 2002
    Date of Patent: April 27, 2004
    Assignee: Milliken & Company
    Inventors: Jenci Kurja, Stephane Berghmans
  • Patent number: 6720383
    Abstract: Chlorinated olefin elastomers prepared from olefin polymer base resins having I10 values of 0.05-0.8 dg/minute are blended with curative and at least 300 phr of an additive package to form a curable composition having excellent properties. Cured compositions provide superior insulating layers for wire and cable applications.
    Type: Grant
    Filed: July 11, 2001
    Date of Patent: April 13, 2004
    Assignee: DuPont Dow Elastomers Inc.
    Inventors: James Reynolds Barclay, Raymond Lynn Laakso, Jr., Jeff Michael Savoie, Larry Benton White
  • Publication number: 20040048958
    Abstract: A high temperature ultra high molecular weight polyethylene material that has a molecular weight between about 4,000,000 and about 8,000,000. The high temperature UHMW-PE material contains between about 99.0 weight percent and about 99.8 weight percent of ultra high molecular weight polyethylene, and between about 0.2 weight percent and about 1.0 weight percent stabilizer. The stabilizer includes between about 48 weight percent and about 52 weight percent tris (2,4-di-tert-butylphenyl) phosphite, and between about 48.0 weight percent and about 52 weight percent tetrakis [methylene 3-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] methane.
    Type: Application
    Filed: September 6, 2002
    Publication date: March 11, 2004
    Inventor: David A. Didier
  • Patent number: 6683126
    Abstract: The present invention provides a coating composition for producing difficult-to-wet surfaces, comprising i) at least one finely divided powder whose particles have a hydrophobic surface and a porous structure characterized by a BET surface area (determined in accordance with DIN 66131) of at least 1 m2/g, and ii) at least one film-forming binder characterized by a surface tension <50 mN/m, the weight ratio of powder to binder being at least 1:4. It also provides a process for producing difficult-to-wet surfaces, and provides for the use of the coating compositions for producing surfaces having a self-cleaning effect and for reducing the flow resistance for liquids in pipes.
    Type: Grant
    Filed: April 25, 2001
    Date of Patent: January 27, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Harald Keller, Ingolf Kühn, Ekkehard Jahns, Christian Lach, Stephan Hüffer, Thilo Krebs, Yi Thomann, Thomas Frechen
  • Publication number: 20030193110
    Abstract: An article of manufacture comprises an ultrahigh molecular weight polyethylene (UHMWPE) mixed with a processing oil and a lubricant selected from the group consisting of fatty acid esters, ethoxylated fatty acid esters, glycol esters, PEG esters, glycerol esters, ethoxylated esters, sorbitol esters, ethoxylated sorbitol esters, aromatic ethoxylates, alcohol ethoxylates, mercaptan ethoxylates, modified ethoxylates, amide surfactants, phosphate esters, phosphonate esters, phosphite esters, alkyl sulfates, fatty acid ethers, alkyl ether sulfates, alkylaryl ether sulfates, sulfonates, naphthalene sulfonates, sulfosuccinates, sulfonated esters, sulfonated amides, alkyl ether carboxylates, alkylaryl ether carboxylates, quaternary amines, amino quaternary amines, ethoxylated amines, imidazoline derivatives, betaines, sultaines, aminopropionate, catechol derivatives, saturated fatty acids, unsaturated fatty acids, and combinations thereof. The method for making those articles is also disclosed.
    Type: Application
    Filed: April 12, 2002
    Publication date: October 16, 2003
    Inventors: Joseph G. Yaritz, J. Kevin Whear
  • Publication number: 20030114569
    Abstract: A polyolefin-based resin composition comprising (A) 100 parts by weight of a polyolefin-based resin, (B) 10 to 200 parts by weight of a metal hydroxide powder, (C) 0.01 to 50 parts by weight of a powdery material consisting of (i) a liquid organopolysiloxane having at least one silicon-bonded hydrogen atom per molecule and (ii) an inorganic powder other than a metal hydroxide, and (D) a platinum-based catalyst in an amount sufficient to provide 0.1 to 10,000 ppm of platinum metal based on the total weight of component (A) and component (B); and a process for the production thereof.
    Type: Application
    Filed: October 31, 2001
    Publication date: June 19, 2003
    Inventors: Yoshitsugu Morita, Haruhiko Furukawa, Koji Shiromoto, Hiroshi Ueki, Hidekatsu Hatanaka, Koji Nakanishi
  • Patent number: 6515057
    Abstract: A method and product which provides a solid, non-powdered homogeneous form to liquid and low melting point solid compounds which facilitates stability, storage, dispersability and handling and which may be added directly to formulations requiring the liquid compound or low melting point solid compound. The liquid or low melting point solid ingredient is combined with a binder which is comprised of at least a wax and thermoplastic polymer. During the method of forming the product, both the binder and the liquid compound (or low melting point solid compound) pass through a liquid phase during which they are mixed. The product is then formed and cooled.
    Type: Grant
    Filed: November 21, 2000
    Date of Patent: February 4, 2003
    Assignee: Rhein Chemie Corporation
    Inventors: Richard D. Cortelezzi, Clifford C. Martin
  • Patent number: 6500508
    Abstract: A flame-retardant resin composition for insulated wires, shielded wires and insulating tubes which are used in the field requiring high-frequency current transmission, for example, in the field of high-density wiring of internal circuits in electronic appliances. The composition comprises (a) a thermoplastic polyolefinic resin having a density of smaller than 0.89 g/cm3, which is prepared by copolymerizing ethylene and a non-polar &agr;-olefin in the presence of a single-site metallocene catalyst, (b) a halogen-containing flame retardant, and (c) zinc oxide. After crosslinking, the composition is used in forming an insulating coating for insulated wires and shielded wires, and in forming insulating tubes.
    Type: Grant
    Filed: February 12, 2001
    Date of Patent: December 31, 2002
    Assignee: Sumitomo Electric Fine Polymer, Inc.
    Inventors: Hiroshi Hayami, Yumi Kawabata, Satoshi Ebina
  • Patent number: 6472042
    Abstract: Filled thermoplastic compositions useful e.g., as sound-deadening sheeting for automotive carpet are obtained by blending at least one ethylene/&agr;-olefin interpolymer; about 40-95 percent by weight of filler; and optionally elastomeric polymers.
    Type: Grant
    Filed: August 20, 1996
    Date of Patent: October 29, 2002
    Assignee: Dow Global Technologies Inc.
    Inventors: Joseph A. Dibbern, Stephen R. Betso, David G. Bertelsman, Martin J. Guest
  • Patent number: 6380297
    Abstract: A method for the preparation of polymer particles comprising the steps of: a) forming an organic phase by dissolving a polymer material in a solvent; b) dispersing the organic phase in an aqueous phase comprising a particulate stabilizer and homogenizing the resultant dispersion, thereby forming spherical particles having a selected particle and uniform particle size distribution; c) following the homogenizing, adding a particle shape-modifying surface active material to the spherical particles; and d) removing the solvent, thereby producing irregularly shaped polymer particles having substantially the same selected particle size and particle size distribution as that of the spherical particles.
    Type: Grant
    Filed: August 12, 1999
    Date of Patent: April 30, 2002
    Assignee: NexPress Solutions LLC
    Inventors: Todd C. Zion, Dennis E. Smith, Hichang Yoon, Matthew C. Ezenyilimba
  • Patent number: 6214913
    Abstract: A method and product which provides a solid, non-powdered homogeneous form to liquid and low melting point solid compounds which facilitates stability, storage, dispersability and handling and which may be added directly to formulations requiring the liquid compound or low melting point solid compound. The liquid or low melting point solid ingredient is combined with a binder which is comprised of at least a wax and thermoplastic polymer. During the method of forming the product, both the binder and the liquid compound (or low melting point solid compound) pass through a liquid phase during which they are mixed. The product is then formed and cooled.
    Type: Grant
    Filed: February 24, 1997
    Date of Patent: April 10, 2001
    Assignee: Rhein Chemie Corporation
    Inventors: Richard D. Cortelezzi, Clifford C. Martin
  • Patent number: 6187847
    Abstract: A composition comprising: (a) polyethylene; (b) as a scorch inhibitor, [1,3,5-tris(4-tert-butyl-3-hydroxy-2,6-dimethylbenzyl)-1,3,5-triazine-2,4,6-(1H,3H,5H)-trione]; and (c) an organic peroxide.
    Type: Grant
    Filed: July 22, 1999
    Date of Patent: February 13, 2001
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Jeffrey Morris Cogen, Laurence Herbert Gross, Michael John Keogh, Joseph Anthony Obal
  • Patent number: 6187858
    Abstract: A composition comprising: (a) polyethylene; (b) as a first antioxidant, a thiobisphenol; (c) as a second antioxidant, a compound containing 3-(3,5-di-t-butyl-4-hydroxyphenyl)propionate in the molecule; (d) as a third antioxidant, distearyl thiodipropionate; and (e) an organic peroxide, with the proviso that each antioxidant is present in an amount of about 0.01 to the about 0.2 part by weight and the organic peroxide is present in an amount of about 0.5 to about 3 parts by weight, all per 100 parts by weight of polyethylene.
    Type: Grant
    Filed: April 16, 1999
    Date of Patent: February 13, 2001
    Assignee: Nippon Unicar Company Limited
    Inventors: Takeshi Tachikawa, Koji Ishihara, Ariyoshi Ohki
  • Patent number: 6084010
    Abstract: The present invention is a hot melt adhesive composition comprising at least one ingredient present in an encapsulated form. The encapsulated ingredient may be any known hot melt adhesive formulation ingredient as well as any hot melt adhesive additive such as antioxidants and fragrances for which there is a desirable change in adhesive properties by isolating such ingredient for a duration of time. The encapsulated ingredient is released from the shell by means of pressure, temperature, diffusion, pH, light, radiation, ultrasound, and combinations thereof. Hot melt adhesive compositions comprising at least one encapsulated ingredient are useful for a variety of novel products including self-supported friction glue sticks, non-tacky pelletized pressure sensitive adhesives, cohesive adhesive systems, hot melt adhesive compositions exhibiting improved thermal stability and odor, as well as for a variety of other adhesive applications.
    Type: Grant
    Filed: August 3, 1998
    Date of Patent: July 4, 2000
    Assignee: H.B. Fuller Licensing & Financing, Inc.
    Inventors: John P. Baetzold, Thomas F. Kauffman, Steven L. Scholl, Eugene R. Simmons
  • Patent number: 6013217
    Abstract: The present invention relates to a method for processing a thermoplastic resin composition by extruding the composition through a nickel die to provide an extrudate having a low degree of surface roughness, said composition comprising(A) 100 parts by weight of a thermoplastic resin;(B) 0.01 to 1 part by weight of a hydroxy-functional diorganopolysiloxane having a number average molecular weight of at least 10,000; and(C) 0.001 to 1 part by weight of an organophosphorous compound.
    Type: Grant
    Filed: December 22, 1997
    Date of Patent: January 11, 2000
    Assignee: Dow Corning Corporation
    Inventors: Dale Earl Hauenstein, Arnold Wade Lomas, Kevin Edward Lupton, David Joseph Romenesko
  • Patent number: 6013202
    Abstract: A composition of matter useful for strippable shields for electric power cables comprises:a base polymer which is a copolymer of ethylene with a mono-unsaturated ester;conductive carbon black in an amount to give the composition an electrical resistivity below 500 .OMEGA.m; andas adhesion-controlling additive, a copolymer of ethylene with a mono-unsaturated ester containing from 0.5 to 2% by weight of side-chains each of which comprises an inflexible ring structure bonded to a backbone carbon atom of the copolymer with at most five atoms interposed between them.The compositions have the advantage of being less rubbery than current strippable-screen compositions and can be made successfully with copolymers of lower ester content.
    Type: Grant
    Filed: July 29, 1998
    Date of Patent: January 11, 2000
    Assignee: BICC General UK Cables Limited
    Inventors: Mark Richard Easter, Fiona Eleanor Keen
  • Patent number: 5922257
    Abstract: A process to produce an article having a granite-like appearance is disclosed which consists essentially of (a) extruding a first mixture to form a second mixture; and (b) using the second mixture to form an article having a granite-like appearance. The first and second mixtures are in the form of particles where the first mixture consists essentially of about 99 to about 90 wt. % of a first particle composition and about 1 to about 10 wt. % of a second particle composition. The first particle composition consists essentially of a first polymer which consists essentially of a thermoplastic (co)polymer of ethylene and the second particle composition consists essentially of a colorant and a second polymer which consists essentially of a crosslinked thermoset (co)polymer of ethylene.
    Type: Grant
    Filed: September 9, 1997
    Date of Patent: July 13, 1999
    Assignee: Phillips Petroleum Company
    Inventor: James E. Keesling
  • Patent number: 5905106
    Abstract: The composition is constituted by a mixture comprising a thermoplastic material, a hydrolysable silane compound, an elastomer, and a peroxide, said thermoplastic material and said silane compound carrying respective groups that react with each other. The composition including a filler containing superficial hydroxyl groups. The composition is suitable for sheathing electric cables and wires.
    Type: Grant
    Filed: April 15, 1997
    Date of Patent: May 18, 1999
    Assignee: Alcatel Alsthom Compagnie Generale D'Electricite
    Inventors: Madeleine Prigent, Alain Chaillie
  • Patent number: 5827916
    Abstract: Formulated compositions having good uncured ("green") and cured physical properties are disclosed. The compositions comprise at least one substantially linear ethylene/C.sub.3 -C.sub.20 .alpha.-olefin copolymer, or alternately, at least one linear ethylene/C.sub.5 -C.sub.20 .alpha.-olefin copolymer. The compositions are easily molded and have particular utility in making wire and cable coatings.
    Type: Grant
    Filed: February 28, 1997
    Date of Patent: October 27, 1998
    Assignee: The Dow Chemical Company
    Inventors: Kevin W. McKay, Robert R. Blanchard, Edwin R. Feig
  • Patent number: 5814714
    Abstract: Interpolymer of a) a mono-olefin selected from the group consisting of .alpha.-olefins and cyclic olefins, and b) a non-conjugated polyene having at least 7 carbon atoms and having two readily polymerizable double bonds, having an improved melt tension, improved processability, or a combination of both, a process of preparing such interpolymers, composition comprising such interpolymers and one or more further natural or synthetic polymers or one or more additives or adjuvants, as well as articles obtained by subjecting such interpolymers to melt processing conditions.
    Type: Grant
    Filed: November 30, 1995
    Date of Patent: September 29, 1998
    Assignee: The Dow Chemical Company
    Inventors: Jesus Nieto Palomo, Patrick J. C. Schouterden, Debra Jean Mangold, Lambertus P. P. M. van der Heijden, Miguel Garcia Marti
  • Patent number: 5747580
    Abstract: Formulated compositions having good uncured ("green") and cured physical properties are disclosed. The compositions comprise at least one substantially linear ethylene/C.sub.3 -C.sub.20 .alpha.-olefin copolymer, or alternately, at least one linear ethylene/C.sub.5 -C.sub.20 .alpha.-olefin copolymer. The compositions are easily molded and have particular utility in making wire and cable coatings.
    Type: Grant
    Filed: July 23, 1997
    Date of Patent: May 5, 1998
    Assignee: The Dow Chemical Company
    Inventors: Kevin W. McKay, Robert R. Blanchard, Edwin R. Feig, Kyle G. Kummer
  • Patent number: 5686515
    Abstract: A process for manufacture of articles comprised of polyethylene terephthalate wherein the PET is colored with a composition comprised of a wax dispersant, ethylene copolymer, and a colorant. In a preferred embodiment, the wax dispersant is a maleated polyethylene wax. In an alternative embodiment, the wax dispersant is a low molecular weight polyethylene wax and the composition further includes linear low density polyethylene. A preferred ethylene copolymer is ethylene-(meth)acrylic acid.
    Type: Grant
    Filed: November 13, 1995
    Date of Patent: November 11, 1997
    Assignee: The M.A. Hanna Company
    Inventors: Tracy L. Phillips, Ronald M. Harris, Alan R. Burgess, Judy A. Johnston
  • Patent number: 5637634
    Abstract: Composition including a silicone and an olefin polymer, the olefin polymer exhibiting a molecular mass distribution defined by an M.sub.w /M.sub.n ratio not exceeding 12.Object manufactured from such a composition.
    Type: Grant
    Filed: December 1, 1995
    Date of Patent: June 10, 1997
    Assignee: Solvay (Societe Anonyme)
    Inventor: Michel Gorgerin
  • Patent number: 5617707
    Abstract: A monolayer or multilayer (i.e., a composite or laminate) stretch wrap film is fabricated from a linear low density polyethylene (LLDPE) possessing a significant level of cling force not attributable to added cling component. The inherent cling force is due to the presence of a relatively high level of n-hexane extractibles in the LLDPE resin.
    Type: Grant
    Filed: April 16, 1996
    Date of Patent: April 8, 1997
    Assignee: Mobil Oil Corporation
    Inventor: Kathryn Simmons
  • Patent number: 5580920
    Abstract: Formulated compositions having good uncured ("green") and cured physical properties are disclosed. The compositions comprise at least one substantially linear ethylene/C.sub.3 -C.sub.20 .alpha.-olefin copolymer, or alternately, at least one linear ethylene/C.sub.5 -C.sub.20 .alpha.-olefin copolymer. The compositions are easily molded and have particular utility in making wire and cable coatings.
    Type: Grant
    Filed: May 8, 1995
    Date of Patent: December 3, 1996
    Assignee: The Dow Chemical Company
    Inventors: Kevin W. McKay, Robert R. Blanchard, Edwin R. Feig
  • Patent number: 5536777
    Abstract: A polyethylene composition which is useful in insulations and joints of extra-high voltage power cables, and in which a cross-linking agent, comprising an organic peroxide subjected to purification processing, and an antioxidant, are blended, wherein the cross-linked composition has a dielectric loss tangent (tan.delta.) of less than or equal to 0.07% at a temperature of 90.degree. C. and under an electric field stress of 20 kV/mm. This polyethylene composition exhibits little dielectric loss, even at high temperatures or high electric field stresses, and is optimally employed in insulations and joints for extra-high voltage power cables of 275 kV or more.
    Type: Grant
    Filed: February 25, 1994
    Date of Patent: July 16, 1996
    Assignees: Fujikura Ltd., NOF Corporation
    Inventors: Izumi Ishikawa, Hiroyuki Miyata, Thoru Nakatsuka, Kazuhiko Goto, Kenji Matsui, Shiro Nakayama, Tohru Takahashi, Mitutaka Tanida, Toshio Niwa
  • Patent number: 5420185
    Abstract: A bow-tie tree resistant electrical insulating composition comprises 100 parts by weight of at least one polymer selected from polyolefins and ethylene copolymers, 0.005-1.0 part by weight of a metal salt of a fatty acid containing a hydroxyl group in the molecule, and 0.005-1.0 part by weight of a fatty acid or a derivative thereof.
    Type: Grant
    Filed: September 14, 1994
    Date of Patent: May 30, 1995
    Assignee: Hitachi Cable Ltd.
    Inventors: Kiyoshi Watanabe, Takanori Yamazaki, Hideki Yagyu, Mamoru Kanaoka, Katsutoshi Hanawa, Chuki Ikeda
  • Patent number: 5414040
    Abstract: Formulated compositions having good uncured ("green") and cured physical properties are disclosed. The compositions comprise at least one substantially linear ethylene/C.sub.3 -C.sub.20 .alpha.-olefin copolymer, or alternately, at least one linear ethylene/C.sub.5 -C.sub.20 .alpha.-olefin copolymer. The compositions are easily molded and have particular utility in making wire and cable coatings.
    Type: Grant
    Filed: September 15, 1992
    Date of Patent: May 9, 1995
    Assignee: The Dow Chemical Company
    Inventors: Kevin W. McKay, Robert R. Blanchard, Edwin R. Feig, Kyle G. Kummer