From Unsaturated Hydrocarbon Monomer Solely Patents (Class 524/855)
  • Patent number: 11753509
    Abstract: A method for producing a polyethylene nanocomposite by polymerizing ethylene in a polymerization mixture that contains a graphene-layered double hydroxide nanocomposite, a metallocene catalyst, an alkylaluminoxane co-catalyst, and an organic solvent to form a polyethylene nanocomposite in which the graphene-layered double hydroxide nanocomposite is dispersed in a matrix of polyethylene and wherein the graphene-layered double hydroxide nanocomposite contains 1 to 7 wt. % graphene relative to a total weight of the graphene-layered double hydroxide nanocomposite.
    Type: Grant
    Filed: November 14, 2018
    Date of Patent: September 12, 2023
    Assignee: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
    Inventors: Mamdouh A. Al-Harthi, Muhammad Daud
  • Patent number: 10329364
    Abstract: Polymerization catalyst compositions are provided as are methods of their preparation. The compositions comprise fatty amines and find advantageous use in olefin polymerization processes. The catalyst composition comprises at least one supported polymerization catalyst wherein the catalyst composition is modified with at least one fatty amine wherein the fatty amine is substantially free of particulate inorganic material.
    Type: Grant
    Filed: February 5, 2015
    Date of Patent: June 25, 2019
    Assignee: Univation Technologies, LLC
    Inventors: Richard B. Pannell, David M. Glowczwski, Chi-I Kuo, Timothy R. Lynn, Fathi David Hussein, Phuong A. Cao, Wesley R. Mariott, Michael D. Awe
  • Patent number: 9193858
    Abstract: The present invention discloses a thermoset resin composition including epoxy resin other than brominated epoxy resin, styrene maleic anhydride copolymer and additive-type flame retardant. The thermoset resin composition also includes an active ester. The thermoset resin composition is used to prepare resin sheet, resin coated copper, prepreg, laminate, copper clad laminate and printed wiring board, and so on. Said thermoset resin composition remarkably reduces the probability of delamination for the PCB laminate, and overcomes drawback of the tetrabromobisphenol A to introduce dielectric properties which will deteriorate the system. The obtained resin composition has good thermal stability and moisture-heat resistance, low dielectric constant and dielectric loss angle tangent, and good flame resistance.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: November 24, 2015
    Assignee: GUANGDONG SHENGYI SCI. TECH CO., LTD.
    Inventors: Minshe Su, Yong Chen, Guofang Tang, Zhongqiang Yang
  • Patent number: 8981004
    Abstract: Disclosed is a method of making a polystyrene based nanocomposite by combining a monomer with a nanoparticle to form a mixture and subjecting the mixture to polymerization conditions to produce a polymeric composite. In an embodiment the nanoparticle has been treated with an additive prior to combining with the monomer and the additive contains a silane moiety.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: March 17, 2015
    Assignee: Fina Technology, Inc.
    Inventors: James R. Butler, David W. Knoeppel
  • Publication number: 20140343219
    Abstract: There is provided a method of fabricating a composite material, the method comprising providing borehole solids originating from a borehole in the earth and embedding the borehole solids in a base material thereby forming the composite material, wherein the base material comprises a polymer. According to an embodiment, the borehole solids contain oil, e.g. on a surface thereof. The oil containing borehole solids may be preprocessed before embedding or may be directly embedded in the base material without preprocessing. Such embodiments allow for a recycling of oil contaminated borehole solids while providing a resource for a filler for polymers.
    Type: Application
    Filed: September 14, 2012
    Publication date: November 20, 2014
    Applicant: MONTANUNIVERSITÄT LEOBEN
    Inventors: Herbert Hofstätter, Clemens Holzer
  • Patent number: 8779058
    Abstract: The present disclosure provides a polymerization process for the production of a high melt flow propylene impact copolymer. The process includes contacting an active propylene-based polymer having a melt flow rate greater than about 100 g/10 min with one or more olefins in a polymerization reactor to form the propylene impact copolymer with a melt flow rate greater than about 60 g/10 min. The production of the high melt flow propylene impact copolymer may occur in one or more polymerization reactors, utilizing standard hydrogen concentration, and no visbreaking.
    Type: Grant
    Filed: February 23, 2009
    Date of Patent: July 15, 2014
    Inventors: William G. Sheard, Jeffrey D. Goad, Linfeng Chen
  • Publication number: 20140114004
    Abstract: Disclosed is a method of making a polystyrene based nanocomposite by combining a monomer with a nanoparticle to form a mixture and subjecting the mixture to polymerization conditions to produce a polymeric composite. In an embodiment the nanoparticle has been treated with an additive prior to combining with the monomer and the additive contains a silane moiety.
    Type: Application
    Filed: December 20, 2013
    Publication date: April 24, 2014
    Applicant: FINA TECHNOLOGY, INC.
    Inventors: James R. Butler, David W. Knoeppel
  • Patent number: 8653187
    Abstract: Disclosed is a method of making a polystyrene based nanocomposite by combining a monomer with a nanoparticle to form a mixture and subjecting the mixture to polymerization conditions to produce a polymeric composite. In an embodiment the nanoparticle has been treated with an additive prior to combining with the monomer and the additive contains a silane moiety.
    Type: Grant
    Filed: November 29, 2011
    Date of Patent: February 18, 2014
    Assignee: Fina Technology, Inc.
    Inventors: James R. Butler, David W. Knoeppel
  • Publication number: 20140024763
    Abstract: The invention provides a process for producing a pigment-encapsulating polymer dispersion, comprising the steps of dispersing a liquid containing a monomer, a hydrophobe and a polymerization initiator into a water medium with a dispersant to obtain a monomer emulsion, and mixing the monomer emulsion with a pigment dispersion containing a self-dispersible pigment to which a hydrophilic group is bonded directly or through another atomic group and which is dispersed by the hydrophilic group, subjecting the resultant mixture to a shearing treatment and then polymerizing the monomer.
    Type: Application
    Filed: June 27, 2013
    Publication date: January 23, 2014
    Inventors: Masanori Jinnou, Takahiro Mori, Satoru Kobayashi, Shinichi Sakurada, Yutaka Kurabayashi
  • Publication number: 20130310518
    Abstract: A method for manufacturing polyethylene or an ethylene copolymer, including a step of free radical polymerisation or copolymerisation of the ethylene at an initiation temperature varying from 150° C. to 200° C., at a pressure varying from 500 to 3000 bar, in the presence of a peroxidic polymerisation initiator selected from among the peroxide compounds of formula (I) in which R1 and R8 are, separately, a C2-C6 alkyl group; R2, R3, R6 and R7 are, separately, a C1-C5 alkyl group; and R4 and R5 are, separately, a C1-C6 alkyl group.
    Type: Application
    Filed: February 8, 2012
    Publication date: November 21, 2013
    Applicant: ARKEMA FRANCE
    Inventors: Pascal Nicol, Serge Hub
  • Patent number: 8541501
    Abstract: Provided is a water-dispersed pressure-sensitive adhesive composition capable of forming a pressure-sensitive adhesive that exhibits good adhesiveness to a non-polar adherend and maintains its properties at a low temperature. The water-dispersed pressure-sensitive adhesive composition according to the present invention comprises a (meth)acrylic polymer obtained by polymerizing a monomer composition containing as a primary component an alkyl (meth)acrylate having an alkyl group with 1 to 18 carbon atoms, a latex containing a rubber component that is immiscible with the (meth)acrylic polymer and has a loss tangent peak temperature of ?5° C. or below when determined by a dynamic viscoelastic measurement in which shear strain is applied at a frequency of 1 Hz, and a tackifier that is miscible with the rubber component, but immiscible with the (meth)acrylic polymer.
    Type: Grant
    Filed: April 24, 2012
    Date of Patent: September 24, 2013
    Assignee: Nitto Denko Corporation
    Inventors: Mika Okada, Chie Kitano
  • Publication number: 20130137808
    Abstract: Disclosed is a method of making a polystyrene based nanocomposite by combining a monomer with a nanoparticle to form a mixture and subjecting the mixture to polymerization conditions to produce a polymeric composite. In an embodiment the nanoparticle has been treated with an additive prior to combining with the monomer and the additive contains a silane moiety.
    Type: Application
    Filed: November 29, 2011
    Publication date: May 30, 2013
    Applicant: FINA TECHNOLOGY, INC.
    Inventors: James R. Butler, David W. Knoeppel
  • Patent number: 8410211
    Abstract: The invention is a method of producing an essentially electrically neutral polymer dispersion, comprising a polymerizing one or more monomers in the presence of a nonionic surfactant, wherein the polymerization preferably occurs in the absence of ionic surfactants. The invention also includes methods of producing positively or negatively charged polymer dispersions comprising producing the essentially nonionic polymer dispersion and further adding a cationically-charged or anionically-charged surfactant or electrolyte. The invention further includes dispersions produced by the methods of the invention and polymer films and powders produced from these dispersions.
    Type: Grant
    Filed: December 9, 2011
    Date of Patent: April 2, 2013
    Assignee: BASF SE
    Inventors: Koichi Takamura, Armin Burghart
  • Patent number: 8349947
    Abstract: Process for polymerising, in a loop reactor, at least one olefin monomer in a liquid diluent to produce a slurry comprising solid particulate olefin polymer and said diluent, wherein the ratio between the actual volumetric solids concentration of the slurry and the maximum possible geometric volume solids concentration of the slurry as measured by the bulk density of an unpacked settled bed of particles, SVCR, is V*0.065 or greater, and the ratio of the cumulative settling distance of an average size particle at any point in the reactor in any direction perpendicular to the direction of the flow, to the internal diameter of the loop reactor, is maintained below [0.084*(V?6.62)+(0.69?SVCR)* 1.666], where V is the circulation velocity of the slurry in m/s and “cumulative settling distance” is defined as the cumulative distance, expressed as a fraction of the diameter, travelled by a particle in any direction perpendicular to the direction of the flow since the previous upstream pump.
    Type: Grant
    Filed: October 28, 2010
    Date of Patent: January 8, 2013
    Assignee: Ineos Manufacturing Belgium NV
    Inventor: Daniel Marissal
  • Patent number: 8329811
    Abstract: A process for polymerization in the presence of nanoparticles of a mineral filler for obtaining polymer nanocomposites which includes the steps of (a) mixing a mineral filler with a swelling agent in a liquid state or near a critical state or supercritical state; (b) subjecting the swelling agent of the mixture obtained in step (a) to an endoenthalpic or isoenthalpic phase change, by altering the conditions of temperature and/or pressure; and (c) polymerizing a monomer, in a continuous or a batch process, in the presence of the mixture of step (b); wherein the swelling agent is a saturated or unsaturated hydrocarbon, a polar or vinylic organic compound, the same monomer used in the polymerization reaction or an inert compound present as a component of the reaction medium.
    Type: Grant
    Filed: April 15, 2008
    Date of Patent: December 11, 2012
    Assignee: Braskem S.A.
    Inventors: Susana Alcira Liberman, Dihogenes Adriano Pozzer, Fábio Fernandes Mota, Olavo Martins Junior, Manoel Lisboa Da Silva Neto
  • Publication number: 20120277374
    Abstract: The invention is a method of producing an essentially electrically neutral polymer dispersion, comprising a polymerizing one or more monomers in the presence of a nonionic surfactant, wherein the polymerization preferably occurs in the absence of ionic surfactants. The invention also includes methods of producing positively or negatively charged polymer dispersions comprising producing the essentially nonionic polymer dispersion and further adding a cationically-charged or anionically-charged surfactant or electrolyte. The invention further includes dispersions produced by the methods of the invention and polymer films and powders produced from these dispersions.
    Type: Application
    Filed: July 10, 2012
    Publication date: November 1, 2012
    Applicant: BASF SE
    Inventors: Koichi Takamura, Amin Burghart
  • Publication number: 20120245285
    Abstract: A method of preparing a reaction mixture comprising a styrene monomer, an antioxidant, and a reaction rate improving additive, contacting the reaction mixture with an antioxidant reactive compound, and placing the reaction mixture under conditions suitable for polymerization of the styrene monomer to a styrenic polymer wherein the polymerization occurs at an overall reaction rate that is increased by equal to or less than 20% when compared to an otherwise similar polymerization process carried out in the absence of the reaction rate improving additive. The reaction rate improving additive can be a sodium or calcium salt of an organic acid.
    Type: Application
    Filed: October 6, 2011
    Publication date: September 27, 2012
    Applicant: FINA TECHNOLOGY, INC.
    Inventor: David Knoeppel
  • Publication number: 20120208960
    Abstract: Process for polymerising, in a loop reactor, at least one olefin monomer in a liquid diluent to produce a slurry comprising solid particulate olefin polymer and said diluent, wherein the ratio between the actual volumetric solids concentration of the slurry and the maximum possible geometric volume solids concentration of the slurry as measured by the bulk density of an unpacked settled bed of particles, SVCR, is V*0.065 or greater, and the ratio of the cumulative settling distance of an average size particle at any point in the reactor in any direction perpendicular to the direction of the flow, to the internal diameter of the loop reactor, is maintained below [0.084*(V?6.62)+(0.69?SVCR)* 1.666], where V is the circulation velocity of the slurry in m/s and “cumulative settling distance” is defined as the cumulative distance, expressed as a fraction of the diameter, travelled by a particle in any direction perpendicular to the direction of the flow since the previous upstream pump.
    Type: Application
    Filed: October 28, 2010
    Publication date: August 16, 2012
    Inventor: Daniel Marissal
  • Patent number: 8217111
    Abstract: The invention is a method of producing an essentially electrically neutral polymer dispersion, comprising a polymerizing one or more monomers in the presence of a nonionic surfactant, wherein the polymerization preferably occurs in the absence of ionic surfactants. The invention also includes methods of producing positively or negatively charged polymer dispersions comprising producing the essentially nonionic polymer dispersion and further adding a cationically-charged or anionically-charged surfactant or electrolyte. The invention further includes dispersions produced by the methods of the invention and polymer films and powders produced from these dispersions.
    Type: Grant
    Filed: April 4, 2007
    Date of Patent: July 10, 2012
    Assignee: BASF SE
    Inventors: Koichi Takamura, Armin Burghart
  • Patent number: 8163842
    Abstract: This invention relates to a method for producing a transparent composite material comprising a first step of subjecting a synthetic smectite having a number average particle diameter of from 10 to 300 nm and an aspect ratio of from 10 to 300 to organizing treatment with an organic quaternary ammonium salt and/or an organic quaternary phosphonium salt; a second step of mixing the synthetic smectite subjected to organizing treatment and a curable resin to prepare a resin composition containing the synthetic smectite in an amount of 10 to 40 mass %; a third step of curing the resin composition to obtain a cured product; and a forth step of removing the organic volatile components remaining in the cured product. According to the method, a transparent composite material which is flexible and has a low coefficient of thermal expansion can be obtained which is reduced in outgassing at high temperature under vacuum as in vapor deposition of a conductive thin film.
    Type: Grant
    Filed: April 13, 2009
    Date of Patent: April 24, 2012
    Assignee: Showa Denko K.K.
    Inventors: Yasushi Kadowaki, Kenji Shimamura, Ryoji Toita
  • Publication number: 20120065299
    Abstract: Composites comprising at least one graphite-carbon nanofiber (GCNF) and a polymer phase covalently linked to a surface thereof.
    Type: Application
    Filed: August 24, 2011
    Publication date: March 15, 2012
    Inventors: Charles M. Lukehart, Wei Hong Zhong, Jiang Li, Eric D. Mowles
  • Publication number: 20110251343
    Abstract: The present invention refers to a process for the preparation of high performance polymer nanocomposites by means of an in situ continuous or batch polymerization process. More specifically, in this process, the sheet-like (layered) or spherical-like mineral filler is previously swollen with a swelling agent consisting in a saturated or unsaturated hydrocarbon or a polar or vinylic organic compound, in liquid state or near the critical point or in supercritical state, in a stirred continuous flow or batch type reactor, prior to being introduced into a polymerization reactor. The swelling agent is subjected to an endoenthalpic or isoenthalpic phase change upon being mixed with the mineral filler, in order to exfoliate and disperse the same at the nanometric level prior to the polymerization.
    Type: Application
    Filed: April 15, 2008
    Publication date: October 13, 2011
    Applicant: Braskem S.A.
    Inventors: Susana Alcira Liberman, Dihogenes Adriano Pozzer, Fábio Fernandes Mota, Olavo Martins Junior, Manoel Lisboa Da Silva Neto
  • Publication number: 20110206858
    Abstract: The invention is directed to putty compositions curable by means of high energy radiation, comprising A) at least one compound capable of free-radical polymerization having at least one olefinic unsaturated group and B) at least one filler, the at least one filler or a mixture of fillers having a particle size distribution such that at most 8% by volume of the filler particles in relation to the total volume of fillers have a particle size of less than or equal to 1.9 ?m and can be used particularly in repair coating vehicle bodies and parts thereof.
    Type: Application
    Filed: August 8, 2007
    Publication date: August 25, 2011
    Inventors: Helmut Loeffler, Carmen Flosbach
  • Publication number: 20110156310
    Abstract: A shape memory polymer composition is described comprising greater that 90 wt. % cyclooctene, less than 10 wt. % of a multicyclic diene, comprising at least two cyclo olefinic rings with at least two reactive double bonds, and less than 2 wt. % of a metathesis catalyst.
    Type: Application
    Filed: February 28, 2011
    Publication date: June 30, 2011
    Inventors: Joseph D. Rule, Kevin M. Lewandowski
  • Patent number: 7968660
    Abstract: This invention relates to a method for producing carbon nanotubes in a dispersed state. The method comprises a stage whereby polymerization is carried out from at least one so-called monomer of interest, in the presence of a catalytic system. The catalytic system comprises a co-catalyst/catalyst catalytic couple that is supported by a catalyst carrier, which corresponds to said carbon nanotubes. The invention also relates to composite materials obtained by said method, and to a catalytic system for implementing said method. The invention further relates to the use of the inventive method and products in a field of polymers, especially that of nanotechnologies.
    Type: Grant
    Filed: June 10, 2009
    Date of Patent: June 28, 2011
    Assignee: Nanocyl S.A.
    Inventors: Philippe Dubois, Michael Alexandre, Daniel Bonduel, Michael Mainil
  • Patent number: 7803870
    Abstract: Disclosed are a cycloolefin resin molded product having excellent flame retardance and a polymerizable composition used for producing such a molded product. A polymerizable composition comprising the cycloolefin monomer, a flame retardant and a metathesis polymerization catalyst is characterized in that a monomer having a condensed ring formed of an aliphatic ring having one or more carbon-carbon double bonds and a ring with aromatic characteristics is used as the cycloolefin monomer. A molded product can be produced through bulk polymerization of this polymerizable composition.
    Type: Grant
    Filed: July 8, 2009
    Date of Patent: September 28, 2010
    Assignee: Zeon Corporation
    Inventor: Tomoo Sugawara
  • Publication number: 20100222507
    Abstract: A method for producing a fine-particle-dispersed polyol (I) is provided, the method including the steps (1) and (n?1): the step (1) of polymerizing an ethylenically unsaturated monomer (b) in a polyol (a), in the presence of fine particles (P1) and a radical polymerization initiator (c), so as to obtain a fine-particle-dispersed polyol intermediate (B2); and the step (n?1) of polymerizing (b) in a fine-particle-dispersed polyol intermediate (B(n?1)), in the presence of (c), so as to obtain a fine-particle-dispersed polyol intermediate (Bn) or the fine-particle-dispersed polyol (I), where n represents an integer of 3 to 7, wherein (P1) have a volume-average particle diameter (R1) of 0.01 ?m to 1.0 ?m, and a concentration of (b) in the step (1) is 7 wt % to 40 wt %.
    Type: Application
    Filed: October 1, 2008
    Publication date: September 2, 2010
    Applicant: SANYO CHEMICAL INDUSTRIES, LTD.
    Inventors: Shigekuni Nakada, Takayuki Tsuji, Yukiya Kobayashi
  • Patent number: 7700698
    Abstract: A process of producing a ring-opening metathesis polymer characterized in that a treatment to decrease the amount of oxygen and/or peroxide in at least one kind of polymerization starting material is performed prior to the ring-opening metathesis polymerization reaction of a cyclic olefin performed in the presence of a ruthenium carbene complex (catalyst). Treatments to decrease the amount of oxygen and/or peroxide include applying an adsorbent to a polymerization starting material to remove oxygen and/or peroxide by adsorption, applying an antioxidant to a polymerization starting material to decompose oxygen or peroxide, and the like.
    Type: Grant
    Filed: February 7, 2006
    Date of Patent: April 20, 2010
    Assignee: Kuraray Co., Ltd.
    Inventors: Hideharu Iwasaki, Yasutaka Inubushi
  • Publication number: 20100092713
    Abstract: A screen protector for use on a mesh screen in a screen printing process can include a layer of protective material such as a polyester film, and a pressure sensitive adhesive on a surface of the polymeric film for adhering the layer to the mesh screen. The screen protector supports the mesh screen and helps prevent premature fraying of the screen. The adhesive can be an acrylic based pressure sensitive adhesive that substantially retains its adhesion properties when in contact with ink. The protector remains substantially attached to the mesh screen when in contact with ink, and therefore no filler material is needed.
    Type: Application
    Filed: October 14, 2008
    Publication date: April 15, 2010
    Applicant: ITCO International, Inc.
    Inventors: Robert B. Bullard, Robert H. Bullard
  • Publication number: 20100021754
    Abstract: Aqueous polymer dispersion obtainable by emulsion polymerization of monomers in the presence of inorganic polymer particles (inorganic particles for short) which are dispersible in the aqueous phase without surface-active assistants.
    Type: Application
    Filed: December 11, 2007
    Publication date: January 28, 2010
    Applicant: BASF SE
    Inventors: Peter Schlichting, Marc Schroeder, Hermann Seyffer
  • Publication number: 20100022697
    Abstract: The invention relates to a process for microencapsulation of phase change materials based on free radicals polymerization comprising: a) the preparation of i) a solution with, at least, a hydrophilic liquid and a stabilizer (continuous phase) and ii) a solution with, at least, a phase change material, a free radical initiator and a polymerizable material (discontinuous phase); b) the preparation of an emulsion by dispersing the discontinuous phase in the continuous phase under vigorous stirring; and c) the polymerization of monomers until the phase change material becomes microencapsulated. This process is simple and effective and avoids the use of hazardous compounds. The invention also relates to microcapsules obtainable by said process and to the use thereof in the thermal protection and storage of heat.
    Type: Application
    Filed: March 23, 2006
    Publication date: January 28, 2010
    Applicant: UNVERSIDAD DE CASTILLA-LA MANCHA
    Inventors: Juan Francisco Rodriguez Romero, Maria Luz Sanchez Silva, Paula Sanchez Paredes, Antonio De Lucas Martinez, Martha Liliana Torres Barreto
  • Publication number: 20090318617
    Abstract: Aqueous polymer dispersions, the dispersed particles of which comprise at least one effect substance from the group consisting of UV absorbers, antistatics, antioxidants and antifogging agents and have a mean particle size of at most 500 nm and a glass transition temperature of at least 85° C. and which can be obtained by emulsion polymerization of ethylenically unsaturated monomers in the presence of at least one effect substance, and to the use of the polymer dispersions comprising effect substances or of the polymer powders obtained therefrom for the finishing and for the stabilizing of polymers, in particular for the stabilizing of thermoplastic polymers, against the effect of UV radiation.
    Type: Application
    Filed: March 9, 2007
    Publication date: December 24, 2009
    Applicant: BASF SE
    Inventors: Rainer Dyllick-Brenzinger, Alban Glaser
  • Publication number: 20090298998
    Abstract: The invention is a method of producing an essentially electrically neutral polymer dispersion, comprising a polymerizing one or more monomers in the presence of a nonionic surfactant, wherein the polymerization preferably occurs in the absence of ionic surfactants. The invention also includes methods of producing positively or negatively charged polymer dispersions comprising producing the essentially nonionic polymer dispersion and further adding a cationically-charged or anionically-charged surfactant or electrolyte. The invention further includes dispersions produced by the methods of the invention and polymer films and powders produced from these dispersions.
    Type: Application
    Filed: April 4, 2007
    Publication date: December 3, 2009
    Applicant: BASF SE
    Inventors: Koichi Takamura, Armin Burghart
  • Patent number: 7612119
    Abstract: Expandable vinylaromatic polymers which comprise: a) a matrix obtained by polymerizing 50-100% by weight of one or more vinylaromatic monomers and 0-50% by weight of a copolymerizable monomer; b) 1-10% by weight, calculated with respect to the polymer (a) of an expanding agent englobed in the polymeric matrix; c) 0.01-20% by weight, calculated with respect to the polymer (a) of carbon black distributed in the polymeric matrix having an average diameter ranging from 30 to 2000 nm, a surface area ranging from 5 to 40 m2/g, a sulfur content ranging from 0.1 to 2000 ppm and an ash content ranging from 0.001 to 1%.
    Type: Grant
    Filed: March 11, 2004
    Date of Patent: November 3, 2009
    Assignee: Polimeri Europa S.p.A.
    Inventors: Antonio Ponticiello, Alessandra Simonelli, Loris Zamperlin
  • Publication number: 20090215956
    Abstract: A process for preventing or reducing polymer agglomeration and/or accumulation on or around the gas distribution grid in an olefin polymerization, fluidized-bed reactor. The process involves introducing one or more scouring balls into the reactor above the gas distribution grid, and carrying out olefin polymerization in the presence of the scouring balls. Also disclosed is a process for polymerizing olefins in a fluidized-bed reactor with reduced polymer agglomeration and/or accumulation on the gas distribution grid.
    Type: Application
    Filed: February 27, 2008
    Publication date: August 27, 2009
    Applicant: WESTLAKE LONGVIEW CORPORATION
    Inventor: Larry Allen NOBLE
  • Patent number: 7579404
    Abstract: Disclosed are a cycloolefin resin molded product having excellent flame retardance and a polymerizable composition used for producing such a molded-product. A polymerizable composition comprising the cycloolefin monomer, a flame retardant and a metathesis polymerization catalyst is characterized in that a monomer having a condensed ring formed of an aliphatic ring having one or more carbon-carbon double bonds and a ring with aromatic characteristics is used as the cycloolefin monomer. A molded product can be produced through bulk polymerization of this polymerizable composition.
    Type: Grant
    Filed: August 9, 2004
    Date of Patent: August 25, 2009
    Assignee: Zeon Corporation
    Inventor: Tomoo Sugawara
  • Publication number: 20090042045
    Abstract: A norbornene-based resin molded article obtained by bulk polymerizing a norbornene-based monomer in a mold; wherein said norbornene-based resin molded article is characterized by comprising a hybrid filler obtained by high-speed mixing the two or more kinds of fillers in dry method. Preferably, said hybrid filler is obtained by high-speed mixing, at least a fibrous filler having 5 to 100 aspect ratio and a particulate filler having 1 to 2 aspect ratio, in dry method. The present invention provides the norbornene-based resin molded article superior in rigidity and dimensional stability; and the method of production thereof.
    Type: Application
    Filed: November 16, 2006
    Publication date: February 12, 2009
    Inventors: Tomohiko Takimoto, Takahiro Miura
  • Publication number: 20080293853
    Abstract: The present invention relates to a novel method for producing polymer/carbon nanotube mixtures by gas-phase polymerization, optionally subsequent dispersion in a carbon nanotube/polymer composite, and in particular homogeneous carbon nanotube/polymer mixtures and carbon nanotube/polymer composites by in situ gas-phase polymerization of olefins or diolefins on carbon nanotubes, wherein the catalysts and, optionally, co-catalysts are supported on the carbon nanotubes.
    Type: Application
    Filed: July 30, 2007
    Publication date: November 27, 2008
    Applicant: BAYER MATERIALSCIENCE AG
    Inventors: AUREL WOLF, SIGURD BUCHHOLZ, VOLKER MICHELE, LESLAW MLECZKO, REINER RUDOLF
  • Publication number: 20070298007
    Abstract: In one aspect, the invention is directed to a biocidal composition, comprising a mixture of (a) a substantially oxidation-resistant thermoplastic polymer having a melting point of about 60° C. to about 100° C.; and (b) a composition for releasing chlorine dioxide gas upon exposure to moisture. In another aspect, the invention provides a polymeric matrix comprising the biocidal composition and having a moisture vapor transmission capability of about 100 to about 1000 grams per 24 hours per square meter per mil of thickness. The invention further provides a manufactured article comprising the biocidal composition, for example manufactured by extrusion, injection molding or blow molding.
    Type: Application
    Filed: June 20, 2007
    Publication date: December 27, 2007
    Inventors: H. HARALD LUTZMANN, JOHN T. INGLIS
  • Patent number: 6946516
    Abstract: A rubber-modified flame resistant styrene resin composition, which has superior heat stability and weather resistance to prevent discoloration and deterioration due to heat or light and is processed under various molding condition, is provided. The rubber-modified flame resistant styrene resin composition includes a rubber-modified styrene resin, flame retardant comprising compounds selected from a group consisting of tetrabromobisphenol-A-bis(2,3-dibromopropylether), hexabromocyclododecane and a mixture thereof, and brominated epoxy oligomer, and calcium stearate as a lubricant.
    Type: Grant
    Filed: July 7, 2003
    Date of Patent: September 20, 2005
    Assignee: LG Chem, Ltd.
    Inventors: Dae-San Jung, Yong-Yeon Hwang, Su-Yeon Na, Jong-Kuk Choi, Chan-Hong Lee
  • Patent number: 6716914
    Abstract: An expanded cellular ethylenic polymer product is provided from an irradiated, noncross-linked linear ethylenic polymer. Linear ethylenic polymers can be irradiated at ambient conditions sufficient to introduce branching in the polymer in the absence of detectable cross-linking as indicated by the absence of gels. The irradiated linear ethylenic polymer is compatible with highly branched low density polyethylene and, when mixed therewith, produces a resin having a single broad based melting temperature range as determined by direct scanning calorimetry, which indicates that the polymers in the mixture have similar crystallization behavior suitable for producing low density foams by extrusion foaming. The linear polymers can be obtained from recycled shrink wrap film. Low densities of from 0.7 to less than 4 pcf can be achieved. The foams typically have improved tear resistance as compared to previous products prepared from low density polyethylene, at comparable low densities.
    Type: Grant
    Filed: June 4, 2003
    Date of Patent: April 6, 2004
    Assignee: Sealed Air Corporation (U.S.)
    Inventors: Nelson E. Malwitz, Natarajan S. Ramesh, Shau-Tarng Lee
  • Patent number: 6441108
    Abstract: The present invention relates to a process for the continuous discharge of pre-classified polymer particles, particularly rubber particles, from a gas phase polymerization reactor, comprising the steps of classifying the polymer in a classifier, discharging the particles with a sufficient size and conveying the undersized particles back into the gas phase polymerization reactor.
    Type: Grant
    Filed: April 6, 2000
    Date of Patent: August 27, 2002
    Assignee: Bayer Aktiengesellschaft
    Inventors: Friedrich Haendeler, Heiko Herold, Leslaw Mleczko, Claus Riehle, Franz-Josef Mersmann, Jürgen Schneider, Michael Dauben
  • Patent number: 6319611
    Abstract: A thermosetting resin is formed from cyclopentadiene and a propargyl halide The resin can be used with carbon fibers to form a carbon—carbon composite.
    Type: Grant
    Filed: October 25, 1999
    Date of Patent: November 20, 2001
    Assignee: The University of Southern Mississippi
    Inventors: Lon J. Mathias, Gregory J. Tregre
  • Patent number: 6281288
    Abstract: A reinforced molding material having high tensile strength comprising: (a) from 0 to 98 parts by weight of one or more thermoplastics, (b) from 2 to 100 parts by weight of a substantially amorphous polyolefin which has been subjected to free radical grafting with a silane which has at least one olefinic double bond and one to three alkoxy groups bonded directly to the silicon, this grafted polyolefin having a melt viscosity at 190° C. In the range from 100 to 50,000 maps and the parts by weight of (a) and (b) sunning to 100, and (c) from 0.5 to 400 parts by weight of a reinforcing material. The molding material can be used, inter alia, for shaped articles, as hotmelt adhesives or for heavy-duty carpet backing materials.
    Type: Grant
    Filed: March 3, 1999
    Date of Patent: August 28, 2001
    Assignee: Degussa-Huels Aktiengesellschaft
    Inventors: Peter Bickert, Ralf Laven, Hans Guenther Wey
  • Patent number: 6245868
    Abstract: The present invention relates to an improved catalyst delivery method for introducing a supported bulky ligand metallocene-type catalyst system to a reactor for polymerizing one or more olefin(s). In particular, the invention provides for a method of introducing a supported metallocene-type catalyst system into a polymerization reactor by and in the presence of a carrier solution of an antistatic agent and a liquid diluent. Also, the invention is directed toward a catalyst feeder for use in a polymerization process.
    Type: Grant
    Filed: May 29, 1998
    Date of Patent: June 12, 2001
    Assignee: Univation Technologies
    Inventors: Agapios K. Agapiou, Kathryn A. Russell
  • Patent number: 6214946
    Abstract: There is provided a process for the gas phase production of an ethylene-propylene or ethylene-propylene-diene rubber in the presence of a single site or single-site like catalyst (e.g., metallocene) catalyst system and an inert particulate material comprising pretreating the inert particulate material with trialkylaluminum (e.g., tri-isobutylaluminum) before commencing polymerization.
    Type: Grant
    Filed: May 19, 1999
    Date of Patent: April 10, 2001
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventor: Xinlai Bai
  • Patent number: 6004677
    Abstract: There is provided a process for producing polydienes, such as polybutadiene and polyisoprene, in a gas phase fluidized bed reactor using a pre-activated nickel catalyst which is highly active for cost effective production of these dienes in gas phase.
    Type: Grant
    Filed: August 8, 1997
    Date of Patent: December 21, 1999
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Kevin Joseph Cann, Maria Angelica Apecetche, Minghui Zhang
  • Patent number: 5952412
    Abstract: The present invention relates to rubber pellets made of an amount of vulcanized rubber and an amount of binder, with the vulcanized rubber preferably being discarded rubber. Additionally, the rubber pellets will preferably contain an amount of filler materials which are plastic or rubber or combinations thereof so that the preferred rubber pellet contains an amount of rubber equal to between about 50% and about 95% by weight of the rubber pellet, an amount of filler material equal to between about 0 and about 45% by weight of the rubber pellet, and an amount of binder equal to between about 5% and about 10% by weight of the rubber pellet. The rubber pellets are used in the formation of asphalt and are desirable because they provide necessary constituents to the asphalt and allow for elimination of equipment and separate ingredient addition steps from the asphalt formation process. The present invention is also desirable because it provides for a way to desirably dispose of waste rubber materials.
    Type: Grant
    Filed: March 19, 1998
    Date of Patent: September 14, 1999
    Assignee: Green Edge Enterprises, L.L.C.
    Inventors: Lee M. Greenberg, Judy A. Smith
  • Patent number: 5869570
    Abstract: A composition including polyalphaolefins that function as drag reducing agents and a process for the preparation of polyalphaolefins that function as drag reducing agents are disclosed. The process includes contacting alphaolefin monomers with catalyst particles in a polymerization mixture that includes a hydrocarbon solvent. The polymerization of the alphaolefin monomers produces polyalphaolefin drag reducing agents having an inherent viscosity of at least 10 dL/g. During polymerization of the polyalphaolcfin monomers, localized micelles compromising high molecular weight polyalphaolefin polymer are formed in micellar zones around the catalyst particles. The polymerization is conducted in the presence of a viscosity reducing agent that includes a substantially hydrophobic dispersant. The viscosity reducing agent is present in an amount sufficient to reduce the viscosity of the reaction mixture and disperse the localized micelles.
    Type: Grant
    Filed: March 19, 1996
    Date of Patent: February 9, 1999
    Assignee: Energy & Environmental International, L.C.
    Inventors: Gerald B. Eaton, Michael J. Monahan
  • Patent number: 5728782
    Abstract: There is provided a process comprising polymerizing a compound selected from the group consisting of a conjugated diene, a vinyl-substituted aromatic compound, and mixtures thereof in a gas phase fluidized polymerization vessel under polymerization conditions in the presence of at least one anionic initiator, optionally in the presence of an inert particulate material. A novel resin particle produced by the process is also provided.
    Type: Grant
    Filed: December 6, 1996
    Date of Patent: March 17, 1998
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Monika Brady, Kevin Joseph Cann, David Joseph Dovedytis