Including Step Of Surface Coating A Particle Or Process Of Expanding A Surface Coated Particle Patents (Class 521/57)
  • Patent number: 10442114
    Abstract: Disclosed herein is a resin pellet and a process to make said resin pellet. The resin pellet comprises a major polyester comprising a catalytic titanium compound, and a minor polyester comprising a phosphorus compound. The major polyester is present in a first compartmentalized zone of the resin pellet and the minor polyester is present in a second compartmentalized zone of the resin pellet.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: October 15, 2019
    Assignee: APG Polytech, LLC
    Inventor: Gianluca Ferrari
  • Patent number: 10370547
    Abstract: A powdery opacifying additive, comprising a polymer of one or more monomers from the group comprising vinyl esters, (meth)acrylic esters, vinylaromatics, olefins, 1,3 dienes and vinyl halides and, if appropriate, further monomers which are copolymerizable therewith, in the form of agglomerated polymer particles with included air-voids, having a volume mean particle size dv of 20 to 80 ?m.
    Type: Grant
    Filed: March 30, 2015
    Date of Patent: August 6, 2019
    Assignee: Wacker Chemical Corporation
    Inventor: Richard Henry Bott
  • Patent number: 10184036
    Abstract: Carbon black-containing composite resin pre-expanded particles comprising 100 to 400 parts by mass of a polystyrene-based resin with respect to 100 parts by mass of a carbon black-containing polyolefin-based resin; having a carbon black content of 0.5 to 5.0% by mass and a bulk density of 0.015 to 0.25 g/cm3; and having an outermost layer of 30 to 80 pm after undergoing the following tests: (a) one of the carbon black-containing composite resin pre-expanded particles is sliced into a 1-mm slice in such a way that cross-section surfaces of cells are exposed on both surfaces of the slice; (b) the obtained slice is immersed in toluene at 25° C. for 24 hours to extract a polystyrene-based resin component as described above; (c) the cross-section surface of the slice is then subjected to magnified photographing by a microscope; (d) the obtained microscope image is observed.
    Type: Grant
    Filed: September 11, 2014
    Date of Patent: January 22, 2019
    Assignee: SEKISUI PLASTICS CO., LTD.
    Inventors: Akira Isayama, Masahiko Ozawa
  • Patent number: 10030080
    Abstract: There is provided a method for preparing a fine particle having an enclosed void using a core polymer containing carboxylic acid, primary middle shell monomers, and secondary hard shell monomers. The method may be a multi-staged emulsion polymerization method. The primary middle shell monomers may include a multi-functionality monomer that is a cross-linking monomer having two or more double bonds.
    Type: Grant
    Filed: April 4, 2016
    Date of Patent: July 24, 2018
    Inventors: Moonsoo Kim, Namwoo Kim, Sihyung Kim
  • Patent number: 9777144
    Abstract: A method of production of an aqueous dispersion of hollow polymer particles including forming, on the outer layers of core polymer particle (A) on which inside shell layer (B) and intermediate shell layer (C) are formed, outside shell layer (D) obtained by using a monomer mixture (d) with a ratio of content of an acidic group-containing monomer controlled to 0.15 wt % or less and adding a base to an aqueous dispersion of the obtained polymer particle to make the pH of the aqueous dispersion 7 or more is provided.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: October 3, 2017
    Assignee: ZEON CORPORATION
    Inventor: Atsushi Yamaguchi
  • Patent number: 9493625
    Abstract: The present invention provides a thermally expandable microcapsule that has a high expansion ratio and durability at high temperatures, and is not likely to cause discoloration and odor when used for foam molding. The thermally expandable microcapsule of the present invention includes: a shell formed from a polymer; and a volatile expansion agent as a core agent encapsulated by the shell, the shell obtained by polymerizing a monomer composition that contains a nitrile monomer and a compound having a glycidyl group in a molecule, the shell exhibiting a value y of 50% or higher and a ratio y/x of 1.1 or higher, in which x represents a gel fraction at ordinary temperature, and y represents a gel fraction upon heating at 180° C. for 30 minutes.
    Type: Grant
    Filed: September 22, 2014
    Date of Patent: November 15, 2016
    Assignees: SEKISUI CHEMICAL CO., LTD., TOKUYAMA SEKISUI CO., LTD.
    Inventors: Hiroshi Yamauchi, Hiroyuki Morita, Satoshi Haneda, Yasuko Wada
  • Patent number: 9212270
    Abstract: The invention relates to a process for producing expandable pelletized material which comprises polylactic acid which comprises the following steps: a) melting and incorporation by mixing of the following components: i) from 50 to 99.9% by weight, based on the total weight of components i to iii), of polylactic acid, ii) from 0 to 49.9% by weight, based on the total weight of components i to iii), of one or more further polymers, iii) from 0.1 to 2% by weight, based on the total weight of components i to iii), of a diepoxide or polyepoxide, and iv) from 0 to 10% by weight of one or more additives, b) incorporation by mixing of v) from 3 to 7% by weight, based on the total weight of components i to iv), of an organic blowing agent into the polymer melt by means of a static or dynamic mixer at a temperature of at least 140° C., c) discharging through a die plate with holes, the diameter of which at the exit from the die is at most 1.
    Type: Grant
    Filed: January 6, 2011
    Date of Patent: December 15, 2015
    Assignee: BASF SE
    Inventors: Andreas Füβl, Bangaru Sampath, Maximilian Hofmann, Ingo Bellin, Sameer Nalawade, Klaus Hahn, Andreas Künkel, Robert Loos
  • Patent number: 8889749
    Abstract: Provided is a method for preparing hydrophobic monolithic silica aerogel, comprising dipping monolithic wet silica gel obtained by using an alkoxide precursor into an alkylsilane solution as a dipping solution to perform hydrophobitization of the surface and inner part of the monolithic wet silica gel by a dipping process. The method is economical by virtue of the use of a small amount of alkylsilane compound and imparts hydrophobic property to monolithic silica aerogel simply in a cost efficient and time efficient manner. In addition, the method reduces shrinkage of hydrophobic monolithic silica aerogel, enables production of hydrophobic monolithic silica aerogel in a translucent form, and allows the hydrophobic monolithic silica aerogel to maintain low heat conductivity similar to the heat conductivity of hydrophilic silica aerogel. The hydrophobic monolithic silica aerogel may be used directly as a heat insulating panel by virtue of excellent hydrophobic property and heat insulating property.
    Type: Grant
    Filed: November 23, 2012
    Date of Patent: November 18, 2014
    Assignee: Korea Institute of Science and Technology
    Inventors: Dong Jin Suh, Gi Seok Yang, Jae Wook Choi, Young Hyun Yoon, Yun Su Lee, Jeong Myeong Ha
  • Publication number: 20140288199
    Abstract: A thermally expandable microcapsule, which shows excellent heat resistance and a high expansion ratio and thereby can be suitably used for molding processes involving high shearing force, such as kneading molding, calender molding, extrusion molding, and injection molding. The thermally expandable microcapsule also provides a foamed product using the thermally expandable microcapsule. The thermally expandable microcapsule contains a shell made of a polymer; and a volatile expansion agent as a core agent encapsulated in the shell, the storage elastic modulus (E?) of the shell at a temperature of 200° C. and a frequency of 10 Hz being 1×105 N/m2 or more, the storage elastic modulus (E?) of the shell at a temperature of 250° C. and a frequency of 10 Hz being 1×105 N/m2 or more, and a maximum displacement amount measured by thermomechanical analysis being 300 ?m or more.
    Type: Application
    Filed: June 4, 2014
    Publication date: September 25, 2014
    Applicant: Sekisui Chemical Co., Ltd.
    Inventors: Yasuhiro KAWAGUCHI, Yoshiyuki KOSAKA
  • Patent number: 8796344
    Abstract: A process for producing pre-expanded particles, comprising the steps of: impregnating 100 parts by weight of polystyrene type resin particles with a volatile blowing agent in the presence of 0.1 to 2.0 parts by weight of a first antistatic agent to obtain expandable resin particles; and bringing 100 parts by weight of the expandable resin particles into contact with 0.1 to 2.0 parts by weight of a second antistatic agent in the presence of an antifoaming agent, and then pre-expanding the particles, thereby obtaining pre-expanded particles, wherein the second antistatic agent and the antifoaming agent are used in a ratio by weight of 1:0.04 to 1.50.
    Type: Grant
    Filed: December 25, 2009
    Date of Patent: August 5, 2014
    Assignee: Sekisui Plastics Co., Ltd.
    Inventors: Yuichi Gondo, Hideyasu Matsumura
  • Patent number: 8486531
    Abstract: The present invention provides heat-expanded microspheres having high packing efficiency, and a production method thereof. The heat-expanded microspheres are produced by expanding heat-expandable microspheres, which comprise shell of thermoplastic resin and a blowing agent encapsulated therein having a boiling point not higher than the softening point of the thermoplastic resin and have an average particle size from 1 to 100 micrometer, at a temperature not lower than their expansion initiating temperature, and the heat-expanded microspheres result in a void fraction not higher than 0.70.
    Type: Grant
    Filed: January 23, 2012
    Date of Patent: July 16, 2013
    Assignee: Matsumoto Yushi-Seiyaku Co., Ltd.
    Inventors: Toshiaki Masuda, Ichiro Takahara, Kenichi Kitano, Katsushi Miki, Takeshi Inohara, Takayuki Aoki
  • Publication number: 20130146241
    Abstract: Expandable microspheres formed by suspension polymerization using a shot growth method are provided. The microspheres are formed of a continuous, gas impermeable shell surrounding a blowing agent. The shell includes a first polymer layer formed from primary monomers and a second layer that includes a chemically reactive monomer or a high Tg monomer. To form the microspheres, the primary monomers are polymerized in a reaction vessel to an approximate 90% polymerization, at which time a secondary monomer that is either a monomer having a Tg of at least 85° C. or a chemically reactive monomer, is added to the reaction vessel to drive the polymerization reaction to completion. The outer layer thus contains either a larger amount of the high Tg monomer or a chemically reactive monomer that possesses the ability to covalently bond a cationic species. The microspheres may be used in papermaking processes to increase the paper bulk.
    Type: Application
    Filed: February 7, 2013
    Publication date: June 13, 2013
    Applicant: INTERNATIONAL PAPER COMPANY
    Inventor: INTERNATIONAL PAPER COMPANY
  • Publication number: 20130065975
    Abstract: The present invention provides a thermally expandable microcapsule that maintains a high expansion ratio and hardly bursts and shrinks even at a high temperature, a foamable thermoplastic resin masterbatch and a foam molded product that are produced using the thermally expandable microcapsule, and a method for producing the thermally expandable microcapsule. The thermally expandable microcapsule comprises a volatile expansion agent included in a shell as a core agent and the shell formed of a polymer, the shell containing a thermosetting resin and a polymer obtainable by polymerization of a monomer composition containing a nitrile-type monomer and a monomer having a carboxyl group, and the thermosetting resin having no radical-polymerizable double bond and at least two functional groups reactive with a carboxyl group per molecule.
    Type: Application
    Filed: March 14, 2011
    Publication date: March 14, 2013
    Inventors: Hiroshi Natsui, Hiroshi Yamauchi, Hiroyuki Morita
  • Publication number: 20120301648
    Abstract: There is disclosed unexpanded or pre-expanded polystyrene beads electrostatically coated with a media capable of supporting the growth of bacteria which assist in the decomposition of the polystyrene. There is also disclosed methods of making the beads, a method of making an expanded polystyrene foam and an expanded polystyrene foam prepared by the method.
    Type: Application
    Filed: November 18, 2010
    Publication date: November 29, 2012
    Applicant: SAFEPS PTY LTD.
    Inventor: Michel Serge Maxime Lefebvre
  • Patent number: 8298447
    Abstract: A conductive paste, a printed circuit board using the conductive paste, and a method of manufacturing the printed circuit board are disclosed. A conductive paste that includes conductive particles, a polymer, and a polymer foam, can reduce the number of printing repetitions, to simplify the manufacturing process, decrease process times, and improve reliability.
    Type: Grant
    Filed: March 13, 2008
    Date of Patent: October 30, 2012
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Ki-Hwan Kim, Jee-Soo Mok, Myung-Sam Kang
  • Publication number: 20120245240
    Abstract: The disclosure relates to processes for preparing an emulsion containing core-sheath-shell polymer particles which, when dried, contain a microvoid which causes opacity in compositions in which they are contained. The particles can serve as binding or opacifying agents in paints, coating, impregnating, and molding compositions primarily, also extended to paper coatings and to some extent in leather, textiles and water based construction materials.
    Type: Application
    Filed: January 20, 2012
    Publication date: September 27, 2012
    Applicant: ORGANIK KIMYA SANAYI VE TIC. A.S.
    Inventors: Guillermo PEREZ, Sibel ALTINOK
  • Patent number: 8268901
    Abstract: The present invention relates to a particulate expandable polylactic acid which functions as a starting material for producing foamed moulded products. The present particulate expandable polylactic acid is provided with a coating so as to improve the fusion properties. The present invention also relates to a method for producing a particulate expandable polylactic acid as well as to a method for producing a foamed moulded product and to the moulded product obtained thereby.
    Type: Grant
    Filed: April 21, 2008
    Date of Patent: September 18, 2012
    Assignee: Synbra Technology B.V.
    Inventors: Robin Nicholas Britton, Franciscus Adrianus Hendrikus Cornelis Van Doormalen, Jan Noordegraaf, Karin Molenveld, Geraldus Gerardus Johannes Schennink
  • Patent number: 8247465
    Abstract: Heat-expandable microspheres include a shell of thermoplastic resin and core material encapsulated in the shell. The core material include a blowing agent having a boiling point not higher than the softening point of the thermoplastic resin and a gas migration inhibitor having a boiling point higher than the softening point of the thermoplastic resin. The ratio of the gas migration inhibitor to the core material is at least 1 weight percent and below 30 weight percent. The average particle size of the heat-expandable microspheres ranges from 1 to 100 micrometers.
    Type: Grant
    Filed: October 9, 2008
    Date of Patent: August 21, 2012
    Assignee: Matsumoto Yushi-Seiyaku Co., Ltd.
    Inventors: Takeshi Inohara, Yoshiaki Shirakabe, Ikuo Yosejima, Kenichi Kitano, Toshiaki Masuda
  • Patent number: 8247640
    Abstract: The present invention concerns highly swellable absorption mediums with a reduced caking tendency at high humidity and/or high temperatures, wherein a swellable polymer is coated with a non-ionic, nitrogen-containing surfactant and optionally a Lewis acid and then reacted by heating.
    Type: Grant
    Filed: March 5, 2010
    Date of Patent: August 21, 2012
    Assignee: Evonik Stockhausen GmbH
    Inventors: Gerd Jonas, Richard Mertens, Markus Frank
  • Publication number: 20120136078
    Abstract: Embodiments of the present disclosure include organic polymeric particles, paper coating compositions, coated paper, and methods of forming coated paper with the paper coating compositions. The embodiments of the organic polymeric particle include an organic hydrophilic polymer with a unit for hydrogen bonding, and a hollow porous structure that comprises an organic polymer that at least partially surrounds the organic hydrophilic polymer, where the hollow porous structure has a pore surface area greater than 1 percent of a total theoretical exterior surface area of the hollow porous structure and the organic hydrophilic polymer and the hollow porous structure give the organic polymeric particle a void volume fraction of 40 percent to 85 percent.
    Type: Application
    Filed: April 1, 2010
    Publication date: May 31, 2012
    Inventors: David J. Brennan, John P. Kelly, Brian J. Ninness, James G. Galloway, Alan B. Chaput, JR., John A. Roper, III, John D. Oates
  • Patent number: 8129438
    Abstract: Foamed polyolefin resin beads having antistatic properties obtained by a process, which includes dispersing polyolefin resin beads into an aqueous medium, injecting a blowing agent, stirring and allowing the polyolefin resin beads to foam and expand. The polyolefin resin beads are composite resin beads comprising a core layer of a core layer polyolefin resin and a covering layer of a covering layer polyolefin resin.
    Type: Grant
    Filed: March 2, 2011
    Date of Patent: March 6, 2012
    Assignee: JSP Corporation
    Inventors: Tokunobu Nohara, Mitsuru Shinohara, Masaharu Oikawa
  • Patent number: 8114476
    Abstract: Process for improving the insulating capacity of expanded vinyl aromatic which includes: 1) preparing beads of expandable vinyl aromatic polymers containing 1-10% by weight, calculated with respect to the polymer, of an expanding agent englobed in the polymeric matrix, and 0.01-25% by weight, calculated with respect to the polymer, of an athermanous additive comprising carbon black homogeneously distributed in the polymeric matrix; 2) treating the surface of the beads, before deposition of the coating, with a liquid lubricating agent; and 3) thermally treating the beads with hot air at a temperature ranging from 30 to 60° C.
    Type: Grant
    Filed: October 1, 2010
    Date of Patent: February 14, 2012
    Assignee: Polimeri Europa S.p.A.
    Inventors: Dario Ghidoni, Antonio Ponticiello, Alessandra Simonelli, Loris Zamperlin
  • Publication number: 20120003478
    Abstract: A method of reducing a volatile organic compound of composite resin particles comprising the step of: blowing a gas from a bottom part of a container in order to fluidize composite resin particles containing a polyolefin-based resin and a polystyrene-based resin in the container until an amount of volatile organic compounds contained in the whole composite resin particles becomes 50 ppm or less, wherein the gas has a temperature of (T?40) to (T?10)° C. when a softening temperature of the composite resin particles is defined as T° C.
    Type: Application
    Filed: March 24, 2010
    Publication date: January 5, 2012
    Applicant: SEKISUI PLASTICS CO., LTD.
    Inventors: Hideyasu Matsumura, Shinji Ishida
  • Patent number: 8088835
    Abstract: It is an object of the present invention to provide a method for easily and economically producing an expansion-molded polypropylene-based resin article stably with a high porosity, that has continuous voids and that can be used as materials such as a sound absorbing material and a draining material. More specifically, the present invention relates to a method for producing an expansion-molded polypropylene-based resin article, in which a mold is filled with expanded polypropylene-based resin particles, and the expanded particles are heated and fused using water vapor, and then cooled, wherein expanded polypropylene-based resin particles are used in which a polypropylene-based resin having a melt index (MI) of not less than 0.1 g/10 minutes and not more than 9 g/10 minutes is used as a base resin, a cell size is not more than 150 ?m, two melting peaks are present on a DSC curve obtained by differential scanning calorimetry, and ?/(?+?) is not less than 0.35 and not more than 0.
    Type: Grant
    Filed: July 27, 2005
    Date of Patent: January 3, 2012
    Assignee: Kaneka Corporation
    Inventors: Tomonori Iwamoto, Takayuki Gouda
  • Patent number: 8084509
    Abstract: The present invention provides a pre-expanded particulate polyolefin-based resin capable of easily attaining satisfactory secondary expandability, satisfactory surface appearance, and satisfactory dimensional stability even when it is intended to obtain an in-mold expansion molded article having a thin-wall shape. The present invention provides a pre-expanded particulate polypropylene-based resin including a polypropylene-based resin X as a base resin, where the resin X includes a resin mixture of at least a polypropylene-based resin A having a melting point of 140° C. or lower and a polypropylene-based resin B having a melting point of 145° C. or higher, and the resin mixture is modified by an organic peroxide so as to have a melt index of 5 g/10 min or more and less than 20 g/10 min.
    Type: Grant
    Filed: November 18, 2005
    Date of Patent: December 27, 2011
    Assignee: Kaneka Corporation
    Inventors: Tetsuya Shibata, Tomonori Iwamoto
  • Patent number: 8058320
    Abstract: A thermally foamable microsphere having a structure that a foaming agent is encapsulated in an outer shell formed from a polymer, wherein the foaming agent contains isododecane, and a production process of the thermally foamable microsphere by a suspension polymerization process using a polymerizable monomer and a foaming agent containing dodecane.
    Type: Grant
    Filed: September 13, 2005
    Date of Patent: November 15, 2011
    Assignee: Kureha Corporation
    Inventors: Tetsuo Ejiri, Mitsuhiro Matsuzaki, Shunzo Endo
  • Publication number: 20110269858
    Abstract: Expandable, thermoplastic polymer bead material, comprising A) from 45 to 97.8 percent by weight of a styrene polymer, B1) from 1 to 45 percent by weight of a polyolefin with a melting point in the range from 105 to 140° C., B2) from 0 to 25 percent by weight of a polyolefin with a melting point below 105° C., C1) from 0.1 to 25 percent by weight of a block or graft copolymer with weight-average molar mass Mw of at least 100,000 g/mol, comprising a) at least one block S composed of from 95 to 100% by weight of vinylaromatic monomers and from 0 to 5% by weight of dienes, and b) at least one copolymer block (S/B)A composed of from 63 to 80% by weight of vinylaromatic monomers and from 20 to 37% by weight of dienes, with glass transition temperature TgA in the range from 5 to 30° C.
    Type: Application
    Filed: December 16, 2009
    Publication date: November 3, 2011
    Applicant: BASF SE
    Inventors: Carsten Schips, Klaus Hahn, Konrad Knoll, Holger Ruckdäschel, Jens Assmann, Georg Grässel, Maximilian Hofmann
  • Patent number: 7994229
    Abstract: The present invention provides a process for producing thermo-expansive microspheres comprising a thermoplastic resinous shell and a blowing agent being encapsulated in the shell, the blowing agent which is a fluorine-containing C2-10 compound having ether linkage, being free of chlorine and bromine atoms and gasifying at a temperature not higher than the softening point of the thermoplastic resin. The thermo-expansive microspheres have preferably an average particle size ranging from 1 to 100 ?m and a CV, or coefficient of variation, of particle size distribution being 30% or less, and a retaining ratio of blowing agent encapsulated being 90% or more.
    Type: Grant
    Filed: February 6, 2008
    Date of Patent: August 9, 2011
    Assignee: Matsumoto Yushi-Seiyaku Co., Ltd.
    Inventors: Katsushi Miki, Toshiaki Masuda, Ichiro Takahara, Takashi Fujie, Ikuo Yosejima
  • Publication number: 20110178192
    Abstract: A coating formulation intended for expandable particulate styrene polymer and comprising (A) from 10 to 90% by weight of a tristearyl ester whose melting point is in the range from 60 to 65° C., (B) from 10 to 90% by weight of a triglyceride of a hydroxy-C16-C18 oleic acid whose melting point is in the range from 70 to 95° C., and also expandable particulate styrene polymer which has at least one coating composed of said coating-composition formulation.
    Type: Application
    Filed: August 8, 2008
    Publication date: July 21, 2011
    Applicant: BASF SE
    Inventors: Andreas Keller, Olaf Kriha, Wolfram Husemann, Klaus Hahn, Bernhard Schmied, Michael Riethues
  • Publication number: 20110172319
    Abstract: The composition and the preparation of multifunctional high-concentrate masterbatches for production of expanded materials of aromatic polyesters are disclosed in this invention. The masterbatch includes a thermoplastic wax having a vicat softening temperature not higher than 100° C. and a high-percentage of a multifunctional compound, wherein the preparation involves a) a low temperature process with a masterbatch temperature lower than 100° C. before cooling and b) cooling without contact of the mixture with water during the whole process. The high-concentrate masterbatch can be applied in production of expanded materials of polyester.
    Type: Application
    Filed: January 11, 2011
    Publication date: July 14, 2011
    Applicant: ARMACELL ENTERPRISE GMBH
    Inventor: Jie LI
  • Patent number: 7972695
    Abstract: Expandable or pre-expanded thermoplastic particles, e.g. polystyrene particles, used to form foam containers e.g. cups, bowls, are coated with a coating composition comprising a liquid part consisting of a) liquid polyethylene glycol with an average molecular weight of 200 to 800; and a solid part comprising components selected from the group consisting of b) polyolefin wax, e.g. polyethylene wax, c) a metal salt of higher fatty acids, e.g. zinc stearate or calcium stearate; d) polyethylene glycol with an average molecular weight of 900 to 10,000; and e) a fatty bisamide or fatty amide, e.g. ethylene bis-stearamide; and combinations of b) through e). The coating composition prevents or resists leakage of liquids and foods with oil and/or fatty components and improves the rim strength and ATF properties of foam containers.
    Type: Grant
    Filed: January 11, 2011
    Date of Patent: July 5, 2011
    Assignee: NOVA Chemicals Inc.
    Inventors: Jiansheng Tang, David Allen Cowan, Dennis H. Piispanan, Michael T. Williams
  • Patent number: 7947751
    Abstract: Resin beads having an average particle size of from 0.001 mm to 10 mm and containing a continuous phase and a particulate dispersed phase are described. The continuous phase includes elastomeric polymers; the dispersed phase includes homopolymers and/or copolymers containing repeat units resulting from the polymerization of one or more aryl polymerizable monomers. The unexpanded polymer resin beads can be prepared by dispersing an organic phase containing elastomeric polymers and one or more monomers, into droplets and polymerizing the monomers in the organic droplets in a low shear flow pattern. The beads can be impregnated with blowing agents, expanded and can be used to make molded articles. Resin beads having a continuous phase comprising a nitrile rubber, and a dispersed phase comprising one or more homopolymers and/or copolymers containing repeat units resulting form the polymerization of one or more aryl polymerizable show prolonged retention of blowing agents in unexpanded form.
    Type: Grant
    Filed: November 13, 2009
    Date of Patent: May 24, 2011
    Assignee: NOVA Chemicals Inc.
    Inventors: Grazyna Petela, Michel F. J. Berghmans, Karel Cornelis Bleijenberg, Paul E. Arch
  • Patent number: 7892645
    Abstract: Expandable or pre-expanded thermoplastic particles, e.g. polystyrene particles, used to form foam containers e.g. cups, bowls, are coated with a coating composition comprising a liquid part consisting of a) liquid polyethylene glycol with an average molecular weight of 200 to 800; and a solid part comprising components selected from the group consisting of b) polyolefin wax, e.g. polyethylene wax, c) a metal salt of higher fatty acids, e.g. zinc stearate or calcium stearate; d) polyethylene glycol with an average molecular weight of 900 to 10,000; and e) a fatty bisamide or fatty amide, e.g. ethylene bis-stearamide; and combinations of b) through e). The coating composition prevents or resists leakage of liquids and foods with oil and/or fatty components and improves the rim strength and ATF properties of foam containers.
    Type: Grant
    Filed: August 19, 2010
    Date of Patent: February 22, 2011
    Assignee: NOVA Chemicals Inc.
    Inventors: Jiansheng Tang, David Allen Cowan, Dennis H Piispanen, Michael T Williams
  • Patent number: 7863342
    Abstract: A method for forming a fire resistant material is disclosed. The method comprises providing a plurality of expandable beads of a polymeric material. The beads are coated with an exfoliable graphite. The exfoliable graphite is adhered to the beads with a resin having a solubility parameter of the polymeric material. The beads are thereafter caused or allowed expand and fuse.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: January 4, 2011
    Assignee: Synbra Technology B.V.
    Inventor: David Charles Aslin
  • Publication number: 20100317753
    Abstract: A process comprising heating an aqueous dispersion of first structured polymer particles at a temperature of at least about 155° C., optionally in the presence of a base and/or a swelling agent, to produce an aqueous dispersion of heat treated structured polymer particles.
    Type: Application
    Filed: November 29, 2007
    Publication date: December 16, 2010
    Inventors: Melinda H. Keefe, James G. Galloway, Ray E. Drumright, Michael J. Devon, Dwayne J. Nicholson
  • Patent number: 7825165
    Abstract: Process for improving the insulating capacity of expanded vinyl aromatic which comprises: 1) preparing beads of expandable vinyl aromatic polymers containing 1-10% by weight, calculated with respect to the polymer, of an expanding agent englobed in the polymeric matrix and 0.001-25% by weight, calculated with respect to the polymer (a), of an athermanous additive comprising carbon black homogeneously distributed in the polymeric matrix; 2) treating the surface of the beads, before deposition of the coating, with a liquid lubricating agent; and 3) thermally treating the beads with hot air at a temperature ranging from 30 to 60° C.
    Type: Grant
    Filed: April 13, 2006
    Date of Patent: November 2, 2010
    Assignee: Polimeri Europa S.p.A.
    Inventors: Dario Ghidoni, Antonio Ponticiello, Alessandra Simonelli, Loris Zamperlin
  • Publication number: 20100267851
    Abstract: A method for forming a fire resistant material is disclosed. The method comprises providing a plurality of expandable beads of a polymeric material. The beads are coated with an exfoliable graphite. The exfoliable graphite is adhe red to the beads with a resin having a solubility parameter of the polymeric material. The beads are thereafter caused or allowed expand and fuse.
    Type: Application
    Filed: June 30, 2010
    Publication date: October 21, 2010
    Applicant: SYNBRA TECHNOLOGY B.V.
    Inventor: David Charles Aslin
  • Patent number: 7807729
    Abstract: A production process for heat-expanded microspheres includes the step of providing a gaseous fluid containing heat-expandable microspheres, which includes a shell of thermoplastic resin and a blowing agent encapsulated therein having a boiling point not higher than the softening point of the thermoplastic resin and have an average particle size from 1 to 100 ?m. The gaseous fluid is fed through a gas-introducing tube having a dispersion nozzle on its outlet that is fixed inside a conduit having a hot gas flow flowing therethrough. A jet of the gaseous fluid is emitted through the dispersion nozzle. Further, the gaseous fluid is collided on a collision plate fixed under the dispersion nozzle so as to disperse the heat-expandable microspheres in the hot gas flow. The dispersed heat-expandable microspheres are heated in the hot gas flow at a temperature not lower than their expansion initiating temperature and thus expanded.
    Type: Grant
    Filed: November 15, 2004
    Date of Patent: October 5, 2010
    Assignee: Matsumoto Yushi-Seiyaku Co., Ltd.
    Inventors: Toshiaki Masuda, Takashi Fujie, Ichiro Takahara, Ikuo Yosejima, Katsushi Miki
  • Patent number: 7785711
    Abstract: Expandable or pre-expanded thermoplastic particles, e.g. polystyrene particles, used to form foam containers e.g. cups, bowls, are coated with a coating composition comprising a liquid part consisting of a) liquid polyethylene glycol with an average molecular weight of 200 to 800; and a solid part comprising components selected from the group consisting of b) polyolefin wax, e.g. polyethylene wax, c) a metal salt of higher fatty acids, e.g. zinc stearate or calcium stearate; d) polyethylene glycol with an average molecular weight of 900 to 10,000; and e) a fatty bisamide or fatty amide, e.g. ethylene bis-stearamide; and combinations of b) through e). The coating composition prevents or resists leakage of liquids and foods with oil and/or fatty components and improves the rim strength and ATF properties of foam containers.
    Type: Grant
    Filed: April 29, 2010
    Date of Patent: August 31, 2010
    Assignee: NOVA Chemicals Inc.
    Inventors: Jiansheng Tang, David A. Cowan, Dennis H. Piispanen, Michael T. Williams
  • Publication number: 20100204350
    Abstract: Disclosed herein is an expandable polystyrene bead having improved adiabaticity and flame-retardance and a method of producing the expandable polystyrene bead. The expandable polystyrene bead comprises 10 to 60 wt % of a flame retardant which is made of one or more selected from among metal or nonmetal oxides, metal or nonmetal hydroxides, silicates, borates and carbonates, having a particle size of 150 ?m. Expanded polystyrene foam having improved adiabaticity and flame-retardance can be obtained using the expandable polystyrene bead. A thin flame-retardant thermal insulator including the expanded polystyrene foam can be widely used in various fire-related fields.
    Type: Application
    Filed: May 8, 2008
    Publication date: August 12, 2010
    Inventors: Jae-Cheon Kim, Hee-Seop Park
  • Patent number: 7772294
    Abstract: A method for forming a fire resistant material is disclosed. The method comprises providing a plurality of expandable beads of a polymeric material. The beads are coated with an exfoliable graphite. The exfoliable graphite is adhered to the beads with a resin having a solubility parameter of the polymeric material. The beads are thereafter caused or allowed to expand and fuse.
    Type: Grant
    Filed: November 27, 2003
    Date of Patent: August 10, 2010
    Assignee: Synbra Technology B.V.
    Inventor: David Charles Aslin
  • Patent number: 7736740
    Abstract: Expandable or pre-expanded thermoplastic particles, e.g. polystyrene particles, used to form foam containers e.g. cups, bowls, are coated with a coating composition comprising a liquid part consisting of a) liquid polyethylene glycol with an average molecular weight of 200 to 800; and a solid part comprising components selected from the group consisting of b) polyolefin wax, e.g. polyethylene wax, c) a metal salt of higher fatty acids, e.g. zinc stearate or calcium stearate; d) polyethylene glycol with an average molecular weight of 900 to 10,000; and e) a fatty bisamide or fatty amide, e.g. ethylene bis-stearamide; and combinations of b) through e). The coating composition prevents or resists leakage of liquids and foods with oil and/or fatty components and improves the rim strength and ATF properties of foam containers.
    Type: Grant
    Filed: July 3, 2006
    Date of Patent: June 15, 2010
    Assignee: NOVA Chemicals Inc.
    Inventors: Jainsheng Tang, David Allen Cowan, Dennis H. Piispanen, Michael T. Williams
  • Publication number: 20100143697
    Abstract: Thermoplastic particle foams which have cells having a mean cell size in the range from 20 to 500 ?m and in which the cell membranes have a nanocellular or fibrous structure having pore or fiber diameters below 1500 nm, and also processes for producing them.
    Type: Application
    Filed: April 8, 2008
    Publication date: June 10, 2010
    Applicant: BASF SE Patents, Trademarks and Licenses
    Inventors: Carsten Schips, Klaus Hahn, Georg Gräßel, Daniela Longo, Jens Aßmann, Andreas Gietl
  • Publication number: 20100120929
    Abstract: A production method for heat-expandable microspheres, which have high expanding ratio and are thermally expanded into hollow particulates having excellent repeated-compression durability, and application thereof are provided. The method produces heat-expandable microspheres a shell of thermoplastic resin and a blowing agent being encapsulated therein and having a boiling point not higher than the softening point of the thermoplastic resin.
    Type: Application
    Filed: May 14, 2008
    Publication date: May 13, 2010
    Applicant: MATSUMOTO YUSHI-SEIYAKU CO., LTD.
    Inventors: Hiroki Naito, Satoshi Kawanami, Katsushi Miki, Ikuo Yosejima, Kenichi Kitano
  • Patent number: 7714029
    Abstract: An expandable polystyrene bead production method, which is a two-step process, is disclosed. The method includes obtaining suspendable, homogenous micropellets from a mixed composition prepared by mixing graphite particles with a styrene-based resin and extruding the composition, and carrying out seed polymerization by suspending graphite-containing micropellets in water and adding a styrene-based monomer and an aromatic hydrocarbon having 6 to 10 carbon atoms, and impregnation by adding a blowing agent. The produced expandable polystyrene beads, which contain graphite particles, are considerably low in thermal conductivity. In addition, the expandable polystyrene beads exhibit a little change in the thermal conductivity over time due to the use of the graphite particles, so that the heat insulation property can be sustained for an extended period of time.
    Type: Grant
    Filed: June 3, 2008
    Date of Patent: May 11, 2010
    Assignee: Korea Kumho Petrochemical Co., Ltd.
    Inventors: Jin-Hee Lee, Han-Bae Bang, Hae-Ri Lee
  • Publication number: 20100087556
    Abstract: The present invention relates to a particulate expandable polylactic acid which functions as a starting material for producing foamed moulded products. The present particulate expandable polylactic acid is provided with a coating so as to improve the fusion properties. The present invention also relates to a method for producing a particulate expandable polylactic acid as well as to a method for producing a foamed moulded product and to the moulded product obtained thereby.
    Type: Application
    Filed: April 21, 2008
    Publication date: April 8, 2010
    Inventors: Robin Nicholas Britton, Franciscus Adrianus Hendrikus Cornelis Van Doormalen, Jan Noordegraaf, Karin Molenveld, Geraldus Gerardus Johannes Schennink
  • Publication number: 20100051220
    Abstract: Expandable microspheres formed by suspension polymerization using a shot growth method are provided. The microspheres are formed of a continuous, gas impermeable shell surrounding a blowing agent. The shell includes a first polymer layer formed from primary monomers and a second layer that includes a chemically reactive monomer or a high Tg monomer. To form the microspheres, the primary monomers are polymerized in a reaction vessel to an approximate 90% polymerization, at which time a secondary monomer that is either a monomer having a Tg of at least 85° C. or a chemically reactive monomer, is added to the reaction vessel to drive the polymerization reaction to completion. The outer layer thus contains either a larger amount of the high Tg monomer or a chemically reactive monomer that possesses the ability to covalently bond a cationic species. The microspheres may be used in papermaking processes to increase the paper bulk.
    Type: Application
    Filed: August 28, 2009
    Publication date: March 4, 2010
    Applicant: INTERNATIONAL PAPER COMPANY
    Inventors: Yaoliang Hong, Kosaraju Krishna Mohan, Peter M. Froass, Mark Fagan, Christopher D. Anderson, Brian Boyars, Eric Scott Daniels, Victoria Laurentia Dimonie, Edward David Sudol, Andrew Klein
  • Publication number: 20100018142
    Abstract: A method of manufacturing a fire retardant composite, a composite and its use. A method of manufacturing a fire retardant composite by applying an aqueous gel-forming composition, e.g. a fire retardant coating composition, on a substrate comprises an aluminosilicate, the aluminosilicate comprising alkali metal aluminate and an alkali metal silicate, and an organic liquid having a boiling point greater than 110° C., e.g. silicone oil. The molar ratio of SiO2:X2O for the alkali metal silicate is from 3.6:1 to 10:1, where X represents the alkali metal of the alkali metal silicate, when the alkali metal aluminate has a molar ratio of Y2O:AI2O3 of 1.35:1, where Y represents the alkali metal of the alkali metal aluminate, this providing improved water resistance for films or coatings prepared from the compositions by drying and curing.
    Type: Application
    Filed: January 23, 2008
    Publication date: January 28, 2010
    Inventors: Peter Willem Marie Schouren, Eric Peter Wilhelmus Elisabeth Smeets, Moses Rathbun, Abraham Araya, Henricus Johanna De Swart, Wilhelmus Petrus Theodorus Kemperman, Jan Noordegraaf, Petrus Erederikus Maria Rensen, Christianus Marcus Gijsbertus Maria Buijk
  • Publication number: 20100004348
    Abstract: The present invention relates to an expandable styrene polymer which comprises athermanous particles and has been coated with a hydrophobicizing agent, which comprises from 10 to 90% by weight of at least one triester of at least one fatty acid with a polyhydric alcohol, as component A, from 5 to 70% by weight of at least one monoester of a fatty acid with a polyhydric alcohol, as component B, from 5 to 80% by weight of at least one metal salt of a fatty acid, as component C, from 5 to 50% by weight of at least one silicate, as component D, and from 0 to 30% by weight of at least one antistatic agent, as component E, and the entirety of components A to E of the hydrophobicizing agent amounts to 100% by weight, to a process for preparation of expandable styrene polymer, via coating of an expandable styrene polymer, which comprises athermanous particles, with a hydrophobicizing agent, to a foam produced from this expandable styrene polymer, and also to the use of a hydrophobicizing agent for coating of expandab
    Type: Application
    Filed: December 17, 2007
    Publication date: January 7, 2010
    Inventors: Frank Braun, Angelika Keller, Gerhard Dembeck, Jürgen von Auenmüller
  • Patent number: 7638559
    Abstract: Resin beads having an average particle size of from 0.001 mm to 10 mm and containing a continuous phase and a particulate dispersed phase are described. The continuous phase includes elastomeric polymers; the dispersed phase includes homopolymers and/or copolymers containing repeat units resulting from the polymerization of one or more aryl polymerizable monomers. The unexpanded polymer resin beads can be prepared by dispersing an organic phase containing elastomeric polymers and one or more monomers, into droplets and polymerizing the monomers in the organic droplets in a low shear flow pattern. The beads can be impregnated with blowing agents, expanded and can be used to make molded articles. Resin beads having a continuous phase comprising a nitrile rubber, and a dispersed phase comprising one or more homopolymers and/or copolymers containing repeat units resulting form the polymerization of one or more aryl polymerizable show prolonged retention of blowing agents in unexpanded form.
    Type: Grant
    Filed: May 9, 2006
    Date of Patent: December 29, 2009
    Assignee: NOVA Chemicals Inc.
    Inventors: Grazyna Petela, Michel Florentine Jozef Berghmans, Karel Cornelis Bleijenberg