Interpolymer Patents (Class 521/144)
  • Patent number: 10550258
    Abstract: To improve the thermal stability of a brominated polymer type flame retardant in a flame-retardant resin composition containing a styrene-based resin and the brominated polymer type flame retardant to provide a flame-retardant resin molded article in which occurrences of black foreign substances and discoloration decrease. The flame-retardant resin composition contains 0.8 to 15 parts by mass of a halogen capture agent, 0.8 to 7 parts by mass of an antioxidant, and 0.8 to 6 parts by mass of liquid paraffin based on a total of 100 parts by mass of a styrene-based resin and brominated polymer type flame retardant, and a content of bromine is 18 to 42% by mass.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: February 4, 2020
    Assignee: TOYO STYRENE CO., LTD
    Inventors: Takaaki Okada, Katsunori Konno, Toshiharu Kurata, Hiromi Daigo
  • Patent number: 9909002
    Abstract: There are provided a resin composition capable of affording a cross-linked foam excellent in heat storage performance, a cross-linked product of the resin composition, and a method for producing the cross-linked product. Specifically, there is provided a resin composition containing an olefin polymer comprising a main chain containing monomer units derived from ethylene and branch chains having 5 or more carbon atoms, the number of the branch chains being within the range of 20 chains to 40 chains per 1000 carbon atoms constituting the olefin polymer, and having a melting peak temperature measured with DSC of within the range of 10° C. to 50° C., a crystallization peak temperature measured with DSC of within the range of 0° C. to 40° C., and a melt enthalpy measured with DSC of 50 J/g or more, and an olefin polymer having a melting peak temperature measured with DSC of within the range of 50° C. to 180° C.
    Type: Grant
    Filed: April 8, 2015
    Date of Patent: March 6, 2018
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Yasutoyo Kawashima, Yoshinobu Nozue
  • Patent number: 9381723
    Abstract: Cellular thin films include a first side separated from a second side, the separation of which defines the thickness of the thin film; at least one layer of a polymeric material arranged along the thickness of the thin film, wherein the polymeric material includes cells and the first and second sides of the thin film have exterior surfaces that have substantially the same thickness as the interior walls forming the cells. The surfaces of the thin films have bumps caused by the cells. The thin exterior surfaces of the thin films is advantageous to allow the films to be flexible.
    Type: Grant
    Filed: September 12, 2008
    Date of Patent: July 5, 2016
    Assignee: University of Washington
    Inventors: Vipin Kumar, John Chunpo Lu, Henry G. Schirmer, Dustin Miller
  • Publication number: 20150133575
    Abstract: The invention relates to a process for the production of polyethylene. The polymerisation takes place in the presence of a catalyst system comprising a hydrocarbon solution containing 1) a dialkoxy magnesium compound and 2) an organic oxygen containing titanium compound further comprising an inorganic oxide support and an activator.
    Type: Application
    Filed: April 22, 2013
    Publication date: May 14, 2015
    Inventors: Nicolaas Hendrika Friederichs, Remy Peter Theresia Smeets, Matthijs van Kessel
  • Publication number: 20150017365
    Abstract: Multimodal polyolefin resin having excellent characteristics such as moldability, mechanical strength, external appearance and a polyolefin resin molded product are disclosed. The polyolefin resin satisfies all requirements of following (1) to (5), (1) density (d): 0.934 to 0.963 g/cm3, (2) melt flow index (MIE, 190° C., 2.16 kg load condition): 0.01 to 1.0 g/10 minutes, (3) ratio of weight-average molecular weight (Mw) and number-average molecular weight (Mn) measured by Gel Permeation Chromatography (GPC) (Mw/Mn, Molecular weight distribution (MWD)): 12 to 60, (4) at least two peaks appear when the molecular weight of the polyolefin resin is measured with GPC, and (5) amount of polyolefin having Mw of 10,000 or less exceeds 15 weight % and amount of polyolefin having Mw of 1,000,000 or more exceeds 1.5 weight %, when the molecular weight of the polyolefin resin is measured with GPC.
    Type: Application
    Filed: September 30, 2014
    Publication date: January 15, 2015
    Inventors: Byung-Keel Sohn, Seung-Tack Yu, Sang-Won Yoo, Young-Jae Jun, Sah-Mun Hong
  • Publication number: 20140357743
    Abstract: A method is presented for forming a collapsed foam film-like structure, the method including positioning a composition applicator adjacent to a hot non-permeable dryer surface, producing a first frothed dispersion or frothed solution from a first dispersion or solution, applying the first frothed dispersion or frothed solution to the dryer surface, allowing the first frothed dispersion or frothed solution to convert to a collapsed foam film-like structure, and scraping the collapsed foam film-like structure from the dryer surface. The method can further include producing a second dispersion or solution, blending the first dispersion or solution and the second dispersion or solution, frothing the blended dispersion or solution, applying the blended frothed dispersion or frothed solution to the dryer surface, and allowing the frothed dispersion or frothed solution to convert to a collapsed foam film-like structure.
    Type: Application
    Filed: May 30, 2013
    Publication date: December 4, 2014
    Applicant: Kimberly-Clark Worldwide, Inc.
    Inventors: Keyur Desai, Jian Qin, Jeffrey Frank Jurena, Frank Paul Abuto, Susan Elaine Shawver, Donald Eugene Waldroup, Deborah Joy Calewarts
  • Patent number: 8901183
    Abstract: Expandable composite resin particles for long-term storage, comprising 500 to 5000 ppm of water and 7.5 to 11.0% by weight of pentane in composite resin of polyolefin-based resin and polystyrene-based resin.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: December 2, 2014
    Assignee: Sekisui Plastics Co., Ltd.
    Inventors: Yasutaka Tsutsui, Masahiko Ozawa
  • Patent number: 8901182
    Abstract: Process for producing expanded polyolefin resin particles with use as a foaming agent in water contained in an aqueous dispersion medium. The process includes dispersing polyolefin resin particles with use as a foaming agent of water contained in an aqueous dispersion medium. The process includes dispersing polyolefin resin particles together with the aqueous dispersion medium into a closed vessel, heating the polyolefin resin particles up to or above a softening temperature of the polyolefin resin particles and pressurizing the polyolefin resin particles, and releasing the polyolefin resin particles into a zone whose pressure is lower than an internal pressure of the closed vessel. The polyolefin resin particles are composed of a polyolefin resin composition including a polyolefin resin, polyethylene glycol homopolymer and a foam nucleating agent.
    Type: Grant
    Filed: February 27, 2013
    Date of Patent: December 2, 2014
    Assignee: Kaneka Corporation
    Inventors: Jun Fukuzawa, Hiroshi Tsuneishi
  • Patent number: 8871825
    Abstract: There is provided a polypropylene resin composition comprising a propylene polymer (A) containing 0 to 70% by mass of a propylene homopolymer (A-1) and 30 to 100% by mass of a propylene-ethylene block copolymer (A-2) defined below, an ethylene-?-olefin copolymer (B) defined below, and an inorganic filler (C), wherein the proportion of the amount of the (A), the proportion of the amount of (B), and the proportion of the amount of (C) relative to the total amount of the (A), the (B) and the (C) are 40 to 94% by mass, 5 to 30% by mass, and 1 to 30% by mass, respectively, the propylene-ethylene block copolymer (A-2) is a mixture of a propylene homopolymer component and a propylene-ethylene random copolymer component, wherein the intrinsic viscosity, as measured in Tetralin of 135° C., of the propylene-ethylene random copolymer component is within the range of 2.0 to 8.
    Type: Grant
    Filed: October 30, 2008
    Date of Patent: October 28, 2014
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Hiroyoshi Nakajima, Yoshitaka Kobayashi, Takashi Fujimoto
  • Publication number: 20140208619
    Abstract: Disclosed are footwear soles comprising a propylene-based elastomer. The presence of the propylene-based elastomer provides the footwear sole with a well-balanced combination of desired properties, including low density, low compression set, and weldability.
    Type: Application
    Filed: January 29, 2013
    Publication date: July 31, 2014
    Applicant: ExxonMobil Chemical Patents Inc.
    Inventors: Leander Kenens, Randal H. Kerstetter, III
  • Patent number: 8785531
    Abstract: A dispersion and methods for forming a dispersion that includes a catalytic linear multi-block olefin interpolymer, and at least one dispersing agent, wherein the catalytic linear multi-block olefin interpolymer includes at least one hard segment and at least one soft segment is disclosed. Various applications of the dispersion are also disclosed.
    Type: Grant
    Filed: July 2, 2007
    Date of Patent: July 22, 2014
    Assignee: Dow Global Technologies LLC
    Inventors: Mark W. VanSumeren, Ronald Wevers, Charles F. Diehl, Gary M. Strandburg, Brad Maurice Moncla, Kevin D. Maak
  • Patent number: 8779019
    Abstract: A noncrosslinked polyethylene resin expanded particle is provided having a bulk density BD in a range of 10 g/L to 100 g/L, the particle being obtained by expanding a polyethylene resin particle whose density is in a range of 0.920 g/cm3 to 0.940 g/cm3, the noncrosslinked polyethylene resin expanded particle having a shrinkage factor in a range of 2% to 30%, the shrinkage factor being obtained by the following formula (1): Shrinkage Factor =(BD?VBD)×100/VBD??(1), wherein: the BD of the noncrosslinked polyethylene expanded particle is a bulk density at 23° C. and at 0.1 MPa (at a normal atmospheric pressure); and the VBD of the noncrosslinked polyethylene expanded particle is a bulk density at 23° C. and at a reduced pressure of 0.002 MPa or less.
    Type: Grant
    Filed: January 14, 2011
    Date of Patent: July 15, 2014
    Assignee: Kaneka Corporation
    Inventor: Kiyotaka Nakayama
  • Patent number: 8765826
    Abstract: Expandable composite resin particles for long-term storage, comprising 500 to 5000 ppm of water and 7.5 to 11.0% by weight of pentane in composite resin of polyolefin-based resin and polystyrene-based resin.
    Type: Grant
    Filed: March 2, 2010
    Date of Patent: July 1, 2014
    Assignee: Sekisui Plastics Co., Ltd.
    Inventors: Yasutaka Tsutsui, Masahiko Ozawa
  • Patent number: 8735471
    Abstract: Polyolefin dispersions, froths, and foams and articles manufactured therefrom are disclosed. Also disclosed is a method for generating a thermoplastic foam from an aqueous dispersion. The aqueous dispersion may include a thermoplastic resin, water, and a stabilizing agent. The method may include adding at least one frothing surfactant to the aqueous dispersion to form a mixture, adding a flame retardant and/or a phase change material, frothing the mixture to create a froth, and removing at least a portion of the water to produce the foam.
    Type: Grant
    Filed: July 2, 2013
    Date of Patent: May 27, 2014
    Assignee: Dow Global Technologies LLC
    Inventor: Bruce Menning
  • Publication number: 20140128490
    Abstract: The present invention relates to a foam rubber material for a weather strip comprising a crosslinked rubber sponge material having a load value ratio satisfying the following relationship: load value ratio (%)=B/A×100?50, wherein A is a load value at 50% compression in the course of compression deformation, and B is a load value at 50% compression in the course of returning from the deformation.
    Type: Application
    Filed: November 4, 2013
    Publication date: May 8, 2014
    Applicant: NISHIKAWA RUBBER CO., LTD.
    Inventor: Michio KIJIMA
  • Patent number: 8658732
    Abstract: Solid state draw a polymer billet, wherein at least 50 percent of all polymers in the billet is a continuous phase of polyethylene polymer having a density of 0.941-0.959 grams per cubic centimeter and a weight-average molecular weight that is 110,000 grams per mole or greater, at a drawing rate of 1.2 meters per minute or faster using a tensile force to create an oriented and cavitated polymer composition whose cross section dimensions all exceed two millimeters.
    Type: Grant
    Filed: March 2, 2010
    Date of Patent: February 25, 2014
    Assignee: Eovations, LLC
    Inventors: Kevin L. Nichols, William J. Michie, Jr., Mridula Kapur
  • Patent number: 8652621
    Abstract: The present invention provides an article with at least one switching segment. The switching segment comprises a shape-memory compound and an isolating region surrounding the shape memory compound. The present invention also provides a method of producing such an article.
    Type: Grant
    Filed: October 30, 2009
    Date of Patent: February 18, 2014
    Assignee: Helmholtz-Zentrum Geesthacht Zentrum fur Material und Kustenforschung GmbH
    Inventors: Thomas Weigel, Andreas Lendlein, Karola Lützow, Frank Klein, Samy Madbouly
  • Publication number: 20130310476
    Abstract: Polypropylene resin expanded particles comprising: a polypropylene resin as a base material resin, the propylene resin having at least two melting peaks on a DSC curve for a second temperature rise measured at a heating rate of 10 g/min with use of a heat flux differential scanning calorimeter (DSC), the at least two melting peaks including (i) a lowest temperature melting peak of not lower than 100° C. and not higher than 130° C. and (ii) a highest temperature melting peak of not lower than 140° C. and not higher than 160° C., the propylene resin having a resin DSC ratio change rate of 0.5%/° C. to 3.0%/° C., the expanded particles having two melting peaks in a DSC measurement made at a first temperature rise at the heating rate of 10 g/min, the two melting peaks including, (i) on a lower temperature side, a melting peak temperature of not lower than 100° C. and not higher than 130° C. and, (ii) on a higher temperature side, a melting peak temperature of not lower than 140° C. and not higher than 160° C.
    Type: Application
    Filed: February 1, 2012
    Publication date: November 21, 2013
    Applicant: KANEKA CORPORATION
    Inventor: Kenichi Senda
  • Publication number: 20130302583
    Abstract: Polyolefin dispersions, froths, and foams and articles manufactured therefrom are disclosed. Also disclosed is a method for generating a thermoplastic foam from an aqueous dispersion. The aqueous dispersion may include a thermoplastic resin, water, and a stabilizing agent. The method may include adding at least one frothing surfactant to the aqueous dispersion to form a mixture, adding a flame retardant and/or a phase change material, frothing the mixture to create a froth, and removing at least a portion of the water to produce the foam.
    Type: Application
    Filed: July 2, 2013
    Publication date: November 14, 2013
    Inventor: Bruce A. Menning
  • Patent number: 8513317
    Abstract: Provided is a process for producing expanded polyolefin resin particles whose cells are not made nonuniform or extremely smaller as seen in conventional expanded particles, whose cell diameter and expansion ratio can be easily controlled independently, and which, when subjected to in-mold expansion molding, give in-mold expanded molded products satisfactory in fusibility and excellent in surface properties.
    Type: Grant
    Filed: December 3, 2008
    Date of Patent: August 20, 2013
    Assignee: Kaneka Corporation
    Inventors: Jun Fukuzawa, Hiroshi Tsuneishi
  • Patent number: 8492447
    Abstract: A closed cell foam material contains a propylene based polymer comprising from about 5% to about 32% by weight ?-olefin units. The propylene based polymer has a heat of fusion, as determined by DSC, of less than 80 J/g. The material also contains 0.5 to 5 phr peroxide, 1.0 to 5.0 phr blowing agent, and 0.1 to 10 phr co-agent. The cells of closed cell foam material have a diameter in the range of 0.1 to 1.5 mm.
    Type: Grant
    Filed: April 1, 2008
    Date of Patent: July 23, 2013
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Sunny Jacob, Abdelhadi Sahnoune, Jun Tong, Randal Howard Kerstetter
  • Patent number: 8461222
    Abstract: There is provided a shoe sole component that has properties such as strength and cushioning property that are suppressed from being changed even under a wide temperature range from severe cold at ?10° C. or lower to high temperature conditions exceeding 30° C. A shoe sole component includes a cross-linked foam of a resin composition, the resin composition containing a thermoplastic polyolefin resin, in which tan ? (?20° C. to 40° C.) at a frequency of 10 Hz measured according to JIS K 7244-4 is 0.01 to 0.5, and tan ? (?20° C.)/tan ? (40° C.) at a frequency of 10 Hz is 0.7 to 1.3.
    Type: Grant
    Filed: July 19, 2011
    Date of Patent: June 11, 2013
    Assignee: ASICS Corporation
    Inventors: Sadaki Mori, Katsuhiro Imazato, Kenichi Harano, Akiyuki Morikawa
  • Publication number: 20130116356
    Abstract: Olefin polymer-based, durable, open-cell foam compositions, structures and articles derived from same; methods for preparation of such foams; and use of the dry durable foams in various applications are disclosed. Further described is use of the foams and structures and articles made of same in absorption, filtration, insulation, cushioning and backing applications, and in particular for odor removal, hygiene and medical applications due to, among other properties, good absorption capabilities, softness and/or flexibility of the foams and their recyclable nature.
    Type: Application
    Filed: December 14, 2012
    Publication date: May 9, 2013
    Applicant: Dow Global Technologies LLC
    Inventor: Dow Global Technologies LLC
  • Publication number: 20130101847
    Abstract: Dispersions and methods for forming dispersions that include a higher crystallinity polyolefin and at least one dispersing agent are disclosed. Various applications for use of the dispersions are also disclosed.
    Type: Application
    Filed: October 23, 2012
    Publication date: April 25, 2013
    Applicant: Dow Global Technologies LLC
    Inventor: Dow Global Technologies LLC
  • Patent number: 8420707
    Abstract: Disclosed herein are a biomass composite composition and a foaming method thereof. The biomass composite composition includes (a) polyester alloy containing biodegradable polyester and petrochemical plastic, (b) reinforcing agent, (c) foaming agent, (d) compatibilizer, (e) lubricant, and (f) impact modifier. The biomass composite composition of the present invention is biodegradable and of heat resistance and melt strength suitable for manufacture of foam products.
    Type: Grant
    Filed: October 19, 2010
    Date of Patent: April 16, 2013
    Inventors: Jong-Wu Chen, Hsiang-Jen Hsiao, Chia-Hung Li, Chin-Fu Chen
  • Publication number: 20130053465
    Abstract: The ethylene-?-olefin copolymer contains monomer units derived from ethylene and monomer units derived from an ?-olefin having 3 to 20 carbon atoms for producing a foam. The ethylene-?-olefin copolymer has a melt flow rate of 0.1 to 100 g/10 minutes, a density of 850 to 940 kg/m3, a molecular weight distribution of 2 to 12, a swell ratio of 1.61 or more, and a value of g* as defined by a formula (I) of 0.50 to 0.78.
    Type: Application
    Filed: April 19, 2011
    Publication date: February 28, 2013
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Toshihiko Manami, Yoshinobu Nozue
  • Patent number: 8344037
    Abstract: A resin composition for cross-linking foam molding having a polymer composition which comprises 100 parts by weight of the following component (A) and 0.5 to 20 parts by weight of the following component (B); a foaming agent; and a cross-linking agent, wherein the component (A) is an ethylene-based polymer satisfying the following conditions (a1) to (a2): (a1) the density is 860 to 935 kg/m3, and (a2) the melt flow rate (MFR) is 0.1 to 10 g/10 minutes, and the component (B) is an ethylene-?-olefin copolymer satisfying the following conditions (b1) to (b3): (b1) the density is 890 to 925 kg/m3, (b2) the intrinsic viscosity [?] determined in a tetralin solution is 4 to 15 dL/g, and (b3) the activation energy of flow (Ea) is less than 50 kJ/mol.
    Type: Grant
    Filed: August 27, 2009
    Date of Patent: January 1, 2013
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Katsuhiro Yamada, Yoshinobu Nozue
  • Patent number: 8338543
    Abstract: Thermoplastic vulcanizate elastomer obtained by dynamic vulcanization of a heterophasic polyolefin composition in presence of at least (i) an alkenyl-substituted alkoxysilane grafting agent and (ii) water; wherein said heterophasic polyolefin composition has flexural modulus equal to or lower than 150 MPa, and comprises: (a) a crystalline propylene homopolymer or copolymer of propylene with up to 15% of ethylene or other alpha-olefin comonomer(s), or their combinations, and (b) a copolymer or a composition of copolymers of ethylene with other alpha-olefins, containing from 15% to 40% of ethylene, said thermoplastic vulcanizate elastomer having compression set values in the range from 45-65%, the ratio of elongation at break to compression set values over 10 and hardness shore A values below 90.
    Type: Grant
    Filed: May 15, 2007
    Date of Patent: December 25, 2012
    Assignee: Basell Poliolefine Italia s.r.l.
    Inventors: Gilberto Moscardi, Enrico Costantini
  • Publication number: 20120283347
    Abstract: A noncrosslinked polyethylene resin expanded particle is provided having a bulk density in a range of 10 g/L to 100 g/L, the particle being obtained by expanding a polyethylene resin particle whose density is in a range of 0.920 g/cm3 to 0.940 g/cm3, the noncrosslinked polyethylene resin expanded particle having a shrinkage factor in a range of 2% to 30%, the shrinkage factor being obtained by the following formula (1): Shrinkage Factor=(BD?VBD)×100/VBD??(1), wherein: the BD of the noncrosslinked polyethylene expanded particle is a bulk density at 23° C. and at 0.1 MPa (at a normal atmospheric pressure); and the VBD of the noncrosslinked polyethylene expanded particle is a bulk density at 23° C. and at a reduced pressure of 0.002 MPa or less.
    Type: Application
    Filed: January 14, 2011
    Publication date: November 8, 2012
    Inventor: Kiyotaka Nakayama
  • Publication number: 20120123006
    Abstract: Disclosed is a resin composition for crosslinking/foam molding which comprises a resin ingredient, a blowing agent, and a crosslinking agent, wherein the resin ingredient is an ethylene/?-olefin copolymer that comprises monomer units based on ethylene and monomer units based on an ?-olefin having 3 to 20 carbon atoms and satisfies all of the following: (1) to have a density of 860-950 kg/m3, (2) to have a melt flow rate (MFR) of 0.01-10 g/10 min, (3) to have a ratio of weight-average molecular weight (Mw) to number-average molecular weight (Mn), Mw/Mn, of 5.5-30, (4) to have a ratio of Z-average molecular weight (Mz) to weight-average molecular weight (Mw), Mz/Mw, of 2-4, and (5) to have a melt tension (MT) of 8 cN or higher.
    Type: Application
    Filed: May 25, 2010
    Publication date: May 17, 2012
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Katsuhiro Yamada, Yoshinobu Nozue
  • Publication number: 20120046373
    Abstract: Methods of making a foam article comprise the steps of compressing a foam at an elevated temperature in a mold for shaping the foam; and cooling the mold to a temperature greater than room temperature, wherein the foam comprises at least one ethylene/?-olefin block interpolymer. The foam may further comprise an ethylene vinyl acetate copolymer and an additive such as a filler or a crosslinking agent. The ethylene/?-olefin block interpolymers are a multi-block copolymer comprising at least one soft block and at least one hard block.
    Type: Application
    Filed: January 28, 2010
    Publication date: February 23, 2012
    Inventors: Bee T. Low, Stephen Yausang Cheng
  • Publication number: 20120040232
    Abstract: This invention relates to microporous membranes comprising polyolefin, the use of such membranes as battery separators, and methods for producing such microporous membranes. In particular, the invention relates to microporous membranes having a shutdown temperature in the range of 120.0° C. to 130.0° C. and a maximum solid state heat shrinkage ?30.0%.
    Type: Application
    Filed: March 5, 2010
    Publication date: February 16, 2012
    Applicant: Toray Tonen Specialty Separator Godo Kaisha
    Inventors: Takeshi Ishihara, Satoshi Miyaoka, Koichi Kono, Donna J. Crowther, Patrick Brant
  • 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: 8008363
    Abstract: There is provided a shoe sole component that has properties such as strength and cushioning property that are suppressed from being changed even under a wide temperature range from severe cold at ?10° C. or lower to high temperature conditions exceeding 30° C. A shoe sole component includes a cross-linked foam of a resin composition, the resin composition containing a thermoplastic polyolefin resin, in which tan ? [?20° C. to 40° C.] at a frequency of 10 Hz measured according to JIS K 7244-4 is 0.01 to 0.5, and tan ? [?20° C.]/tan ? [40° C.] at a frequency of 10 Hz is 0.7 to 1.3.
    Type: Grant
    Filed: May 10, 2006
    Date of Patent: August 30, 2011
    Assignee: ASICS Corporation
    Inventors: Sadaki Mori, Katsuhiro Imazato, Kenichi Harano, Akiyuki Morikawa
  • Publication number: 20110172322
    Abstract: The invention relates to a long chain branched medium and low density polyethylene having a combination of the following properties: a) a density of from 0.910 to 0.945 g/cm3; b) an HLMI of from 2 to 150 dg/min and an MI2 of from 0.01 to 2 dg/min; c) a polydispersity index (PDI) Mw/Mn of at least 7, wherein Mw is the weight average molecular weight and Mn is the number average molecular weight of the polyethylene; and d) and a minimum amount of long chain branching measured by a value selected from one of grheo and LCBI. The invention also relates to a process for obtaining said polyethylene comprising the following steps: a) injecting ethylene, one or more alpha-olefinic comonomers comprising 3 to 10 carbon atoms and an activated chromium-based catalyst into a gas phase polymerisation reactor; b) copolymerising said ethylene and comonomer in said reactor in the gas phase; and c) retrieving an ethylene copolymer having a density of from 0.910 to 0.
    Type: Application
    Filed: April 13, 2007
    Publication date: July 14, 2011
    Applicant: Total Petrochemicals Research Feluy
    Inventors: Jacques Michel, Guy Debras, Philippe Bodart, Mieke Dams, Pascal Charlier
  • Patent number: 7977397
    Abstract: The present invention relates to compositions comprising blends of alkenyl aromatic polymers such as styrenic polymers (i.e. PS and HIPS) and bio-based or biodegradable polymers (i.e. PLA, PGA, PHA, PBS, PCL) compatibilized with styrene-based copolymers (i.e. styrene-ethylene-butylene-styrene (SEBS) block copolymers, maleated SEBS, styrene-maleic anhydride (SMA) copolymer, styrene-methyl methacrylate (SMMA) copolymer) or a mixture of two or more styrene-based copolymers such as SEBS and SMA. These novel compositions can be extruded and thermoformed to produce very low density food service and consumer foam articles such as plates, hinged lid containers, trays, bowls, and egg cartons with good mechanical properties.
    Type: Grant
    Filed: March 14, 2008
    Date of Patent: July 12, 2011
    Assignee: Pactiv Corporation
    Inventors: Yunwa Wilson Cheung, David V. Dobreski, Richard Turner, Mark Wheeler, Y. Paul Handa
  • Publication number: 20110165407
    Abstract: The present invention relates to a multilayer insulation based on expandable and crosslinkable elastomeric material with improved low temperature resistance and flexibility, the process for manufacturing of such material and system, and the use of such material and system.
    Type: Application
    Filed: January 7, 2011
    Publication date: July 7, 2011
    Inventors: Jürgen Weidinger, Steve Weiss
  • Patent number: 7956096
    Abstract: The invention relates to thermally expandable thermoplastic microspheres comprising a polymer shell made from ethylenically unsaturated monomers encapsulating a propellant, said ethylenically unsaturated monomers comprising from 40 to 70 wt % of acrylonitrile, from 5 to 40 wt % of methacrylonitrile, from 10 to 50 wt % of monomers selected from the group consisting of esters of acrylic acid, esters of methacrylic acid and mixtures thereof, and said propellant comprising at least one of methane, ethane, propane, isobutane, n-butane and neo-pentane. The invention further relates to the production and use of the microspheres.
    Type: Grant
    Filed: February 9, 2007
    Date of Patent: June 7, 2011
    Assignee: Akzo Nobel N.V.
    Inventors: Ove Nordin, Heléne Ström, Christina Nyholm, Claes Hammer
  • Patent number: 7947752
    Abstract: Disclosed is a microporous high density polyethylene film for a battery separator and a method of producing the same. The microporous high density polyethylene film includes high density polyethylene with a weight average molecular weight of 2×105-5×105, containing 5 wt % or less molecule with a molecular weight of 1×104 or less. The microporous high density polyethylene film has tensile strengths of 1,100 kg/cm2 or more in transverse and machine directions respectively, a puncture strength of 0.22 N/?m or more, a gas permeability (Darcy's permeability constant) of 1.3×10?5 Darcy or more, and shrinkages of 5% or less in machine and transverse directions, respectively. Particularly, the microporous high density polyethylene film has an excellent extrusion-compoundabiliy and stretchability and a high productivity, and can improve the performances and stability of a battery produced using the same.
    Type: Grant
    Filed: February 12, 2008
    Date of Patent: May 24, 2011
    Assignee: SK Energy Co., Ltd.
    Inventors: Young Keun Lee, Jang Weon Rhee, Won Young Cho, Jung Moon Sung, Byoung Cheon Jo, Chol Ho Lee, In Hwa Jung, Byung Rae Jung
  • Patent number: 7947754
    Abstract: The present invention provides a foam comprising (a) a polylactic acid resin, (b) at least one thermoplastic resin selected from a polyolefin resin and a polystyrene resin, and (c) a block copolymer of a vinyl aromatic compound and a conjugated diene, wherein a ratio of (a) to (b) by weight (a/b) is 80/20 to 20/80, and the foam comprises 0.5 to 20 parts by weight of (c) with respect to 100 parts by weight of (a) and (b) in total.
    Type: Grant
    Filed: January 18, 2007
    Date of Patent: May 24, 2011
    Assignee: Asahi Kasei Chemicals Corporation
    Inventors: Tohru Okuda, Shoichiro Harada, Yoshihito Fukasawa
  • Publication number: 20110098373
    Abstract: A foam form sheet material having a first large surface comprising substantially only closed cells and an opposite large surface and an interior comprising substantially only open cells. This material comprises a cross linked olefin thermoplastic polymer or copolymer. The foam is made by mixing the polymer with a blowing agent and a cross linking agent. The mixture is maintained in a two roll mill means for a time sufficient to initiate cross linking and to initiate foaming to form closed cells. The sheet material is then disposed in a second two roll mill means having a nip that is larger than the thickness of the foamed sheet material and maintained under elevated temperature and pressure sufficient to initiate further cross linking and foaming. The fully cross linked cell foam is then compressed to rupture the closed cells that are disposed in the interior to form open cells.
    Type: Application
    Filed: July 9, 2008
    Publication date: April 28, 2011
    Applicant: SENSTAT PRODUCTS & TECHNOLOGIES, INC.
    Inventor: Edward Benjaminsen
  • Patent number: 7923478
    Abstract: A nanoporous material is provided. The pores of the nanoporous material are formed between nanoparticles that have a polymeric surface layer. The nanoporous material is produced by (a) suspending the nanoparticles in a medium material, wherein the nanoparticles are phase separated from the medium material, (b) heating the suspension to a temperature above the melting point of the nanoparticle surface layer, and (c) cooling the suspension. Alternatively, the nanoporous material may be produced by dissolving nanoparticles having a polymeric surface layer in a solvent, and then adding a medium material that causes the nanoparticles to phase separate from the solution.
    Type: Grant
    Filed: December 12, 2007
    Date of Patent: April 12, 2011
    Assignee: Bridgestone Corporation
    Inventors: Xiaorong Wang, Mindaugas Rackaitis
  • Patent number: 7872056
    Abstract: The present invention relates to compositions comprising blends of alkenyl aromatic polymers such as styrenic polymers (i.e. PS and HIPS) and bio-based or biodegradable polymers (i.e. PLA, PGA, PHA, PBS, PCL) compatibilized with styrene-based copolymers (i.e. styrene-ethylene-butylene-styrene (SEBS) block copolymers, maleated SEBS, styrene-maleic anhydride (SMA) copolymer, styrene-methyl methacrylate (SMMA) copolymer) or a mixture of two or more styrene-based copolymers such as SEBS and SMA. These novel compositions can be extruded and thermoformed to produce very low density food service and consumer foam articles such as plates, hinged lid containers, trays, bowls, and egg cartons with good mechanical properties.
    Type: Grant
    Filed: February 2, 2009
    Date of Patent: January 18, 2011
    Assignee: Pactiv Corporation
    Inventors: Yunwa Wilson Cheung, David V. Dobreski, Richard Turner, Mark Wheeler, Y. Paul Handa
  • Publication number: 20100240784
    Abstract: Thermoplastic vulcanizate elastomer obtained by dynamic vulcanization of a heterophasic polyolefin composition in presence of at least (i) an alkenyl-substituted alkoxysilane grafting agent and (ii) water; wherein said heterophasic polyolefin composition has flexural modulus equal to or lower than 150 MPa, and comprises: (a) a crystalline propylene homopolymer or copolymer of propylene with up to 15% of ethylene or other alpha-olefin comonomer(s), or their combinations, and (b) a copolymer or a composition of copolymers of ethylene with other alpha-olefins, containing from 15% to 40% of ethylene, said thermoplastic vulcanizate elastomer having compression set values in the range from 45-65%, the ratio of elongation at break to compression set values over 10 and hardness shore A values below 90.
    Type: Application
    Filed: May 15, 2007
    Publication date: September 23, 2010
    Applicant: Bassell Poliolefine Italia s.r.l.
    Inventors: Gilberto Moscardi, Enrico Costantini
  • Patent number: 7795321
    Abstract: Rheology modification of an ethylene/?-olefin interpolymer is achieved by blending the interpolymer with at least one branched polyolefin. The polyolefins can be homopolymers or interpolymers and have a branching index of less than 1. The ethylene/?-olefin interpolymer is a block copolymer having at least a hard block and at least a soft block. The soft block comprises a higher amount of comonomers than the hard block. The block interpolymer has a number of unique characteristics disclosed here. Rheology-modified ethylene/?-olefin interpolymer, i.e., the resulting polymer blends, can be extruded or molded into many useful articles, such as films, sheets, profiles, gaskets, foams, etc.
    Type: Grant
    Filed: March 15, 2006
    Date of Patent: September 14, 2010
    Assignee: Dow Global Technologies Inc.
    Inventors: Yunwa W. Cheung, Felipe Martinez, Pankaj Gupta
  • Publication number: 20100113637
    Abstract: The present subject matter relates generally to polymer compositions, and more particularly to irradiated polymer compositions comprising at least one non-phenolic stabilizer. The present polymer compositions comprise an unexpected balance of properties after being subjected to irradiation treatments, including an unexpected combination of a lower melt flow rate ratio (MFRr) and high melt tension after being irradiated, while minimizing negative yellowing effects.
    Type: Application
    Filed: June 27, 2008
    Publication date: May 6, 2010
    Applicant: Basell Poliolefine Italia s.r.l,
    Inventors: Jeffrey D. Abata, Ronald F. Becker, Vu A. Dang, Anthony J. De Nicola, JR., Theodore Dziemianowicz
  • Publication number: 20100076102
    Abstract: The invention relates to a composite comprising a thermosetting resin with a hardness of at least 55 Shore D, wherein the resin essentially consists of an ethylene ?-olefin copolymer with a density of less than 880 kg/m3, which resin is crosslinked to a degree such that the volume swelling measured in decaline after 64 hours at 23° C. is less than 50% by volume on the composite and the composite contains at least 40% by volume of a reinforcing filler, wherein the vol % of the filler is related to the volume of the resin. The composite according to the invention is an excellent isolator when at least 100 phr cork are present in the composite. A composite according to the invention can be made by crosslinking of the copolymer in the presence of a high amount of peroxide in the presence of at least 40% by volume on the resin of a filler.
    Type: Application
    Filed: September 10, 2007
    Publication date: March 25, 2010
    Applicant: DSM IP ASSETS B.V.
    Inventors: Herman Gerard Dikland, Jagdish Ramanlal Patel, Christopher Michael Twigg
  • Patent number: 7671106
    Abstract: A polymer composition comprises at least an ethylene/?-olefin interpolymer and at least one other polymer. The other polymer can be selected from a second ethylene/?-olefin interpolymer, an elastomer, a polyolefin, a polar polymer, and an ethylene/carboxylic acid interpolymer or ionomer thereof. The ethylene/?-olefin interpolymer is a block copolymer having at least a hard block and at least a soft block. The soft block comprises a higher amount of comonomers than the hard block. The block interpolymer has a number of unique characteristics disclosed here. Also provided are gaskets, bottle cap liners, and closures that comprise or obtained from a compositon comprising at least one ethylene/?-olefin interpolymer and at least one polyolefin. The gaskets are capable of compression sealing various containers, without contaminating the contents. Liquid containers particularly benefit from the use of the novel gasket materials disclosed herein.
    Type: Grant
    Filed: March 15, 2006
    Date of Patent: March 2, 2010
    Assignee: Dow Global Technologies Inc.
    Inventors: Ronald P. Markovich, Dale M. Elley-Bristow, Miguel A. Prieto, Russell P. Barry, Felipe Martinez, Daniel J. Falla, Julien H. J. M. Damen
  • Patent number: 7666918
    Abstract: Foamable compositions and foams comprise at least an ethylene/?-olefin interpolymer. The foam has a density from greater than 150 to about 500 kg/m3. The foamable compositions further comprise a blowing agent and a crosslinking agent. The ethylene/?-olefin interpolymers are a multi-block copolymer comprising at least one soft block and at least one hard block. Methods of making the foamable compositions and foams; and foamed articles made from the foams are also described.
    Type: Grant
    Filed: March 15, 2006
    Date of Patent: February 23, 2010
    Assignee: Dow Global Technologies, Inc.
    Inventors: Miguel A. Prieto, Roger Daniel Kocher, Julien H. J. M. Damen, Yunwa Wilson Cheung
  • Publication number: 20100040953
    Abstract: Provided is a porous film formed from a polyolefin-based resin containing an ethylene-?-olefin copolymer including a structural unit derived from ethylene and a structural unit derived from one or more kinds of monomers selected from ?-olefins having 4 to 10 carbon atoms, wherein a shutdown temperature is 125° C. or lower.
    Type: Application
    Filed: September 25, 2007
    Publication date: February 18, 2010
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Atsuhiro Takata, Ryuma Kuroda, Shin-ichi Kumamoto