From Unsaturated Hydrocarbon Monomer Solely Patents (Class 524/855)
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Patent number: 11753509Abstract: 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: GrantFiled: November 14, 2018Date of Patent: September 12, 2023Assignee: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALSInventors: Mamdouh A. Al-Harthi, Muhammad Daud
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Patent number: 10329364Abstract: 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: GrantFiled: February 5, 2015Date of Patent: June 25, 2019Assignee: Univation Technologies, LLCInventors: Richard B. Pannell, David M. Glowczwski, Chi-I Kuo, Timothy R. Lynn, Fathi David Hussein, Phuong A. Cao, Wesley R. Mariott, Michael D. Awe
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Patent number: 9193858Abstract: 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: GrantFiled: March 14, 2013Date of Patent: November 24, 2015Assignee: GUANGDONG SHENGYI SCI. TECH CO., LTD.Inventors: Minshe Su, Yong Chen, Guofang Tang, Zhongqiang Yang
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Patent number: 8981004Abstract: 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: GrantFiled: December 20, 2013Date of Patent: March 17, 2015Assignee: Fina Technology, Inc.Inventors: James R. Butler, David W. Knoeppel
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Publication number: 20140343219Abstract: 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: ApplicationFiled: September 14, 2012Publication date: November 20, 2014Applicant: MONTANUNIVERSITÄT LEOBENInventors: Herbert Hofstätter, Clemens Holzer
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Patent number: 8779058Abstract: 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: GrantFiled: February 23, 2009Date of Patent: July 15, 2014Inventors: William G. Sheard, Jeffrey D. Goad, Linfeng Chen
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Publication number: 20140114004Abstract: 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: ApplicationFiled: December 20, 2013Publication date: April 24, 2014Applicant: FINA TECHNOLOGY, INC.Inventors: James R. Butler, David W. Knoeppel
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Patent number: 8653187Abstract: 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: GrantFiled: November 29, 2011Date of Patent: February 18, 2014Assignee: Fina Technology, Inc.Inventors: James R. Butler, David W. Knoeppel
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Publication number: 20140024763Abstract: 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: ApplicationFiled: June 27, 2013Publication date: January 23, 2014Inventors: Masanori Jinnou, Takahiro Mori, Satoru Kobayashi, Shinichi Sakurada, Yutaka Kurabayashi
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Publication number: 20130310518Abstract: 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: ApplicationFiled: February 8, 2012Publication date: November 21, 2013Applicant: ARKEMA FRANCEInventors: Pascal Nicol, Serge Hub
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Patent number: 8541501Abstract: 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: GrantFiled: April 24, 2012Date of Patent: September 24, 2013Assignee: Nitto Denko CorporationInventors: Mika Okada, Chie Kitano
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Publication number: 20130137808Abstract: 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: ApplicationFiled: November 29, 2011Publication date: May 30, 2013Applicant: FINA TECHNOLOGY, INC.Inventors: James R. Butler, David W. Knoeppel
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Patent number: 8410211Abstract: 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: GrantFiled: December 9, 2011Date of Patent: April 2, 2013Assignee: BASF SEInventors: Koichi Takamura, Armin Burghart
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Patent number: 8349947Abstract: 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: GrantFiled: October 28, 2010Date of Patent: January 8, 2013Assignee: Ineos Manufacturing Belgium NVInventor: Daniel Marissal
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Patent number: 8329811Abstract: 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: GrantFiled: April 15, 2008Date of Patent: December 11, 2012Assignee: Braskem S.A.Inventors: Susana Alcira Liberman, Dihogenes Adriano Pozzer, Fábio Fernandes Mota, Olavo Martins Junior, Manoel Lisboa Da Silva Neto
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Publication number: 20120277374Abstract: 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: ApplicationFiled: July 10, 2012Publication date: November 1, 2012Applicant: BASF SEInventors: Koichi Takamura, Amin Burghart
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Publication number: 20120245285Abstract: 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: ApplicationFiled: October 6, 2011Publication date: September 27, 2012Applicant: FINA TECHNOLOGY, INC.Inventor: David Knoeppel
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Publication number: 20120208960Abstract: 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: ApplicationFiled: October 28, 2010Publication date: August 16, 2012Inventor: Daniel Marissal
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Patent number: 8217111Abstract: 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: GrantFiled: April 4, 2007Date of Patent: July 10, 2012Assignee: BASF SEInventors: Koichi Takamura, Armin Burghart
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Patent number: 8163842Abstract: 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: GrantFiled: April 13, 2009Date of Patent: April 24, 2012Assignee: Showa Denko K.K.Inventors: Yasushi Kadowaki, Kenji Shimamura, Ryoji Toita
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Publication number: 20120065299Abstract: Composites comprising at least one graphite-carbon nanofiber (GCNF) and a polymer phase covalently linked to a surface thereof.Type: ApplicationFiled: August 24, 2011Publication date: March 15, 2012Inventors: Charles M. Lukehart, Wei Hong Zhong, Jiang Li, Eric D. Mowles
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Publication number: 20110251343Abstract: 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: ApplicationFiled: April 15, 2008Publication date: October 13, 2011Applicant: Braskem S.A.Inventors: Susana Alcira Liberman, Dihogenes Adriano Pozzer, Fábio Fernandes Mota, Olavo Martins Junior, Manoel Lisboa Da Silva Neto
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Publication number: 20110206858Abstract: 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: ApplicationFiled: August 8, 2007Publication date: August 25, 2011Inventors: Helmut Loeffler, Carmen Flosbach
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Publication number: 20110156310Abstract: 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: ApplicationFiled: February 28, 2011Publication date: June 30, 2011Inventors: Joseph D. Rule, Kevin M. Lewandowski
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Patent number: 7968660Abstract: 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: GrantFiled: June 10, 2009Date of Patent: June 28, 2011Assignee: Nanocyl S.A.Inventors: Philippe Dubois, Michael Alexandre, Daniel Bonduel, Michael Mainil
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Patent number: 7803870Abstract: 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: GrantFiled: July 8, 2009Date of Patent: September 28, 2010Assignee: Zeon CorporationInventor: Tomoo Sugawara
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Publication number: 20100222507Abstract: 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: ApplicationFiled: October 1, 2008Publication date: September 2, 2010Applicant: SANYO CHEMICAL INDUSTRIES, LTD.Inventors: Shigekuni Nakada, Takayuki Tsuji, Yukiya Kobayashi
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Patent number: 7700698Abstract: 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: GrantFiled: February 7, 2006Date of Patent: April 20, 2010Assignee: Kuraray Co., Ltd.Inventors: Hideharu Iwasaki, Yasutaka Inubushi
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Publication number: 20100092713Abstract: 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: ApplicationFiled: October 14, 2008Publication date: April 15, 2010Applicant: ITCO International, Inc.Inventors: Robert B. Bullard, Robert H. Bullard
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Publication number: 20100021754Abstract: 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: ApplicationFiled: December 11, 2007Publication date: January 28, 2010Applicant: BASF SEInventors: Peter Schlichting, Marc Schroeder, Hermann Seyffer
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Publication number: 20100022697Abstract: 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: ApplicationFiled: March 23, 2006Publication date: January 28, 2010Applicant: UNVERSIDAD DE CASTILLA-LA MANCHAInventors: Juan Francisco Rodriguez Romero, Maria Luz Sanchez Silva, Paula Sanchez Paredes, Antonio De Lucas Martinez, Martha Liliana Torres Barreto
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Publication number: 20090318617Abstract: 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: ApplicationFiled: March 9, 2007Publication date: December 24, 2009Applicant: BASF SEInventors: Rainer Dyllick-Brenzinger, Alban Glaser
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Publication number: 20090298998Abstract: 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: ApplicationFiled: April 4, 2007Publication date: December 3, 2009Applicant: BASF SEInventors: Koichi Takamura, Armin Burghart
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Patent number: 7612119Abstract: 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: GrantFiled: March 11, 2004Date of Patent: November 3, 2009Assignee: Polimeri Europa S.p.A.Inventors: Antonio Ponticiello, Alessandra Simonelli, Loris Zamperlin
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Publication number: 20090215956Abstract: 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: ApplicationFiled: February 27, 2008Publication date: August 27, 2009Applicant: WESTLAKE LONGVIEW CORPORATIONInventor: Larry Allen NOBLE
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Patent number: 7579404Abstract: 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: GrantFiled: August 9, 2004Date of Patent: August 25, 2009Assignee: Zeon CorporationInventor: Tomoo Sugawara
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Publication number: 20090042045Abstract: 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: ApplicationFiled: November 16, 2006Publication date: February 12, 2009Inventors: Tomohiko Takimoto, Takahiro Miura
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Publication number: 20080293853Abstract: 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: ApplicationFiled: July 30, 2007Publication date: November 27, 2008Applicant: BAYER MATERIALSCIENCE AGInventors: AUREL WOLF, SIGURD BUCHHOLZ, VOLKER MICHELE, LESLAW MLECZKO, REINER RUDOLF
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Publication number: 20070298007Abstract: 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: ApplicationFiled: June 20, 2007Publication date: December 27, 2007Inventors: H. HARALD LUTZMANN, JOHN T. INGLIS
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Patent number: 6946516Abstract: 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: GrantFiled: July 7, 2003Date of Patent: September 20, 2005Assignee: LG Chem, Ltd.Inventors: Dae-San Jung, Yong-Yeon Hwang, Su-Yeon Na, Jong-Kuk Choi, Chan-Hong Lee
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Patent number: 6716914Abstract: 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: GrantFiled: June 4, 2003Date of Patent: April 6, 2004Assignee: Sealed Air Corporation (U.S.)Inventors: Nelson E. Malwitz, Natarajan S. Ramesh, Shau-Tarng Lee
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Patent number: 6441108Abstract: 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: GrantFiled: April 6, 2000Date of Patent: August 27, 2002Assignee: Bayer AktiengesellschaftInventors: Friedrich Haendeler, Heiko Herold, Leslaw Mleczko, Claus Riehle, Franz-Josef Mersmann, Jürgen Schneider, Michael Dauben
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Patent number: 6319611Abstract: 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: GrantFiled: October 25, 1999Date of Patent: November 20, 2001Assignee: The University of Southern MississippiInventors: Lon J. Mathias, Gregory J. Tregre
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Patent number: 6281288Abstract: 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: GrantFiled: March 3, 1999Date of Patent: August 28, 2001Assignee: Degussa-Huels AktiengesellschaftInventors: Peter Bickert, Ralf Laven, Hans Guenther Wey
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Patent number: 6245868Abstract: 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: GrantFiled: May 29, 1998Date of Patent: June 12, 2001Assignee: Univation TechnologiesInventors: Agapios K. Agapiou, Kathryn A. Russell
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Patent number: 6214946Abstract: 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: GrantFiled: May 19, 1999Date of Patent: April 10, 2001Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventor: Xinlai Bai
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Patent number: 6004677Abstract: 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: GrantFiled: August 8, 1997Date of Patent: December 21, 1999Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventors: Kevin Joseph Cann, Maria Angelica Apecetche, Minghui Zhang
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Patent number: 5952412Abstract: 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: GrantFiled: March 19, 1998Date of Patent: September 14, 1999Assignee: Green Edge Enterprises, L.L.C.Inventors: Lee M. Greenberg, Judy A. Smith
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Patent number: 5869570Abstract: 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: GrantFiled: March 19, 1996Date of Patent: February 9, 1999Assignee: Energy & Environmental International, L.C.Inventors: Gerald B. Eaton, Michael J. Monahan
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Patent number: 5728782Abstract: 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: GrantFiled: December 6, 1996Date of Patent: March 17, 1998Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventors: Monika Brady, Kevin Joseph Cann, David Joseph Dovedytis