Polymer Mixture Of Two Or More Solid Polymers Derived From Ethylenically Unsaturated Reactants Only; Or Mixtures Of Said Polymer Mixture With A Chemical Treating Agent; Or Products Or Processes Of Preparing Any Of The Above Mixtures Patents (Class 525/191)
  • Patent number: 8076418
    Abstract: An ethylene based polymer composition comprising the following component (A), the following component (B) and the following component (C) wherein the content of the component (A) is 120 to 1700 parts by weight per 100 parts by weight of the component (B) and the content of the component (C) is 3 to 20 parts by weight per 100 parts by weight of the component (B): Component (A): an ethylene-?-olefin copolymer satisfying all of the following requirements (a1) to (a3): (a1) the density is 890 to 925 kg/m3, (a2) the melt flow rate (MFR) is 0.1 to 30 g/10 minutes, (a3) the flow activation energy (Ea) is less than 50 kJ/mol, Component (B): an ethylene based polymer satisfying all of the following requirements (b1) to (b3): (b1) the density is 890 to 925 kg/m3, (b2) the melt flow rate (MFR) is 0.
    Type: Grant
    Filed: May 15, 2008
    Date of Patent: December 13, 2011
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Yoshinobu Nozue, Yasutoyo Kawashima
  • Patent number: 8071222
    Abstract: Polymeric particles capable of absorbing blood and/or body fluids, the polymeric particles being coated with at least one surfactant and with at least one solvent, are produced and used for absorbing blood and/or body fluids, especially in hygiene articles.
    Type: Grant
    Filed: September 15, 2010
    Date of Patent: December 6, 2011
    Assignee: BASF SE
    Inventors: Antje Ziemer, Bernhard Steinmetz, Michael de Marco, Monika Medelnick
  • Patent number: 8071681
    Abstract: Polymeric compositions and methods of making and using such compositions are provided. The compositions incorporate at least one component that is a polymer including propylene-derived units and at least one component that is a styrenic block copolymer. The polymeric compositions are found to have desirable elastomeric properties while at the same time exhibiting beneficial processability characteristics. The unique combination of processability and performance attributes result in the polymeric compositions useful in a variety of applications such as films, fibers, woven and non-woven fabrics, sheets, molded objects, extruded forms, thermoformed objects, and all products made from such application materials.
    Type: Grant
    Filed: July 20, 2005
    Date of Patent: December 6, 2011
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Srivatsan Srinivas Iyer, Sudhin Datta, Trazollah Ouhadi
  • Patent number: 8067503
    Abstract: Blends of syndiotactic 1,2-polybutadiene and rubbery elastomers are prepared by a process that comprises polymerizing 1,3-butadiene monomer into syndiotactic 1,2-polybutadiene within a rubber cement of an elastomeric terpolymer by using a chromium-based, molybdenum-based, or iron-based catalyst composition. Polymer composition comprising the blend with improved properties is also provided.
    Type: Grant
    Filed: January 23, 2007
    Date of Patent: November 29, 2011
    Assignee: Bridgestone Corporation
    Inventors: Christine Rademacher, Steven Luo, Zhong-Ren Chen, Walter Tomaszewski, Edward Kelley
  • Patent number: 8067501
    Abstract: A thermoplastic composition for cast and blown films and the resulting films thereof are provided. The film can include about 10 wt % to 80 wt % propylene-based copolymer having at least 50 wt % propylene-derived units and 5 wt % to 30 wt % alpha-olefin comonomer, based on the total weight of the polymer that exhibits a melting point of about 100° C. to 170° C., and a MFR of about 200 dg/min or less. The film can include about 20 wt % to 90 wt % polypropylene homopolymer having a melting point of about 140° C. to 190° C. The film can have a thickness of about 10 ?m to 100 ?m, a haze of 13% or less, a 1% MD Secant tensile modulus of 55,000 to 150,000 psi, a machine direction Elmendorf tear of at least 5 g/mil and a transverse direction Elemdorf tear of at least 300 g/mil, and a 45 degree gloss of at least 70.
    Type: Grant
    Filed: December 22, 2009
    Date of Patent: November 29, 2011
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: David Michael Fiscus, Narayanaswami Raja Dharmarajan, Michael Charles Bulawa, Michael Glenn Williams
  • Patent number: 8067499
    Abstract: The present invention provides a thermoplastic resin composition that gives a solar cell sealing sheet having, even without being crosslinked, good mechanical strength, solar cell sealability, transparency, and weatherability. The thermoplastic resin composition of the present invention comprises 1 to 95% by weight of a propylene-based polymer (A) and 5 to 99% by weight of a copolymer (B) with at least one •-olefin having 2 to 20 carbon atoms other than propylene, wherein (A) satisfies the following (i) and (ii), and (B) has a melting point below 80° C. or does not show a melting point as measured by a differential scanning calorimeter (DSC). (i) Melting point measured by a differential scanning calorimeter (DSC) method is in the range of 80 to 135° C. (ii) Endotherm attributable to crystal melting is not observed at 140° C. or more in the endothermic curve measured by a differential scanning calorimeter (DSC) method.
    Type: Grant
    Filed: April 12, 2007
    Date of Patent: November 29, 2011
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Hiroshi Hoya, Kiminori Noda
  • Patent number: 8067502
    Abstract: The present invention provides a thermoplastic resin composition that gives a solar cell sealing sheet having, even without being crosslinked, good mechanical strength, solar cell sealability, transparency, and weatherability. The thermoplastic resin composition of the present invention comprises 1 to 95% by weight of a propylene-based polymer (A) and 5 to 99% by weight of a copolymer (B) with at least one ?-olefin having 2 to 20 carbon atoms other than propylene, wherein (A) satisfies the following (i) and (ii), and (B) has a melting point below 80° C. or does not show a melting point as measured by a differential scanning calorimeter (DSC). (i) Melting point measured by a differential scanning calorimeter (DSC) method is in the range of 80 to 135° C. (ii) Endotherm attributable to crystal melting is not observed at 140° C. or more in the endothermic curve measured by a differential scanning calorimeter (DSC) method.
    Type: Grant
    Filed: December 21, 2010
    Date of Patent: November 29, 2011
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Hiroshi Hoya, Kiminori Noda
  • Patent number: 8067500
    Abstract: A curable composition and an adhesive which exhibit a temporarily fixing effect very quickly and which are completely cured quickly at room temperature, and a bonding method using such a composition. The curable composition including a component (A)], which is a polymerizable acrylic liquid composition, a component (B), which is cumene hydroperoxide, a component (C), which is a reducing agent containing vanadium or copper, or a reducing agent comprising ethylene thiourea, and a component (D), which is a basic compound having a primary, secondary, or tertiary amine structure.
    Type: Grant
    Filed: February 28, 2008
    Date of Patent: November 29, 2011
    Assignee: Denki Kagaku Kogyo Kabushiki Kaisha
    Inventors: Yuki Hisha, Kimihiko Yoda
  • Patent number: 8063149
    Abstract: A polymer blend including: (i) a fluoroolefin polymer prepared by a process, including contacting in a first reaction zone an initiator, 2,3,3,3-tetrafluoro-1-propene, and optionally, at least one first ethylenically unsaturated comonomer capable of copolymerizing therewith, wherein contacting is carried out at a first temperature, pressure and length of time sufficient to produce the fluoroolefin polymer; and (ii) an acrylic polymer prepared by a process, including contacting in a second reaction zone an initiator, at least one acrylic monomer selected from the group consisting of: acrylic acid, methacrylic acid, acrylate ester, methacrylate ester, and a mixture thereof, and optionally, at least one second ethylenically unsaturated comonomer capable of copolymerizing therewith, wherein contacting is carried out at a second temperature, pressure and length of time sufficient to produce the acrylic polymer. Processes for preparing the polymer blends are also provided.
    Type: Grant
    Filed: December 19, 2007
    Date of Patent: November 22, 2011
    Assignee: Honeywell International Inc.
    Inventors: George J Samuels, Gregory J Shafer
  • Patent number: 8063148
    Abstract: The present invention relates to a polyolefin composition comprising an olefin homo- or copolymer (A) in an amount of 90 wt. % or more, and an olefin homo- or copolymer (B) comprising hydrolysable silicon-containing groups, wherein olefin homo- or copolymer (B) is present in the composition in an amount of from 0.01 to 2 wt. %.
    Type: Grant
    Filed: November 7, 2007
    Date of Patent: November 22, 2011
    Assignee: Borealis Technology Oy
    Inventors: Markus Gahleitner, Tung Pham, Johannes Wolfschwenger, Doris Machl
  • Patent number: 8063147
    Abstract: An object is to provide a transmission belt which is restrained from being deteriorated in a high-temperature atmosphere, is excellent in softness in a low-temperature atmosphere, and is hardly worn away. To attain the object, the invention provides a transmission belt made of a rubber composition wherein the ratio by weight of a Ziegler-Natta catalyst type ethylene/?-olefin copolymer rubber, which is an ethylene/?-olefin copolymer rubber obtained by polymerization in the presence of a Ziegler-Natta catalyst, to a metallocene type ethylene/?-olefin copolymer rubber, which is an ethylene/?-olefin copolymer rubber obtained by polymerization in the presence of a metallocene catalyst, is from 50/50 to 90/10.
    Type: Grant
    Filed: August 31, 2007
    Date of Patent: November 22, 2011
    Assignee: Bando Chemical Industries, Ltd.
    Inventor: Yasuhiko Yoshida
  • Patent number: 8063146
    Abstract: Disclosed is a thermoplastic elastomer composition containing 10-60 parts by weight of a non-crosslinkable crystalline polyolefin resin (A), 1-30 parts by weight of a specific propylene 1-butene random copolymer (B) and 89-10 parts by weight of an ethylene ?-olefin non-conjugated polyene copolymer rubber (C) which is composed of ethylene, an ?-olefin having 3-20 carbon atoms and a non-conjugated polyene, in such amounts that the total of the components (A), (B) and (C) is 100 parts by weight. The thermoplastic elastomer composition is dynamically crosslinked by an extruder. This thermoplastic elastomer is excellent in moldability and economic efficiency, and enables to obtain a molded body exhibiting sufficient adhesion strength to a vulcanized rubber or thermoplastic elastomer without the intermediation of an adhesive layer, as well as a lightweight molded body having sufficient hardness and rubber elasticity.
    Type: Grant
    Filed: June 2, 2008
    Date of Patent: November 22, 2011
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Tadashi Imai, Takuo Asami, Masakazu Jitsukata, Keiji Okada
  • Patent number: 8057875
    Abstract: The present invention has its object to provide a resin composition for tubes excellent in balance among wear resistance, flexibility, gas permeation resistance and low resilience (pliability). The object is accomplished by a resin composition for tubes which comprises an isobutylene block copolymer (A) constituted of a polymer block (a) derived from isobutylene as a main constituent and a polymer block (b) derived from a monomer component other than isobutylene as a main constituent, and a thermoplastic polyurethane resin (B).
    Type: Grant
    Filed: December 1, 2005
    Date of Patent: November 15, 2011
    Assignee: Kaneka Corporation
    Inventors: Kenji Noda, Tsuyoshi Mihayashi, Kazumasa Ohara
  • Patent number: 8058348
    Abstract: A polyolefin microporous film comprising polyethylene and polypropylene having a viscosity average molecular weight of 100,000 or higher, the polypropylene being contained in an amount of 4 wt % or more and the terminal vinyl group concentration per 10,000 carbon atoms in the polyolefin constituting the microporous film being 2 or more as measured by infrared spectroscopy. The microporous film has both of a good film breaking resistance and a low thermal shrinkage, is excellent in fuse property, and has a uniform film thickness. Particularly, the microporous film can retain safety in the oven safety test at 150° C. for a battery which is required for use as a lithium ion battery separator.
    Type: Grant
    Filed: July 27, 2006
    Date of Patent: November 15, 2011
    Assignee: Asahi Kasei Chemicals Corporation
    Inventors: Hisashi Takeda, Daisuke Inagaki
  • Patent number: 8058349
    Abstract: A method for melt-processing a polymer of a monovinyl aromatic compound, such as styrene, is disclosed. The method may include heating a polymer of a monovinyl aromatic compound volumetrically with microwave energy, wherein the polymer of a monovinyl aromatic compound includes: a discontinuous rubber phase; and a continuous poly(monovinyl aromatic) phase comprising up to 49 weight percent of at least one of an acrylate comonomer and a vinyl cyanide comonomer.
    Type: Grant
    Filed: November 14, 2008
    Date of Patent: November 15, 2011
    Assignee: Styron Europe GmbH
    Inventors: Amaia Montoya-Goni, Ronald G. Van Daele, Roel Vossen, Michael Cook
  • Patent number: 8058350
    Abstract: A composition comprising: a) 50% to 90% of a propylene (co)polymer having: (i) a polydispersity index >3, (ii) melt flow rate >1 dg/min, and (iii) fraction soluble in xylene at 25° C. >1%, b) 5% to 25% of an ethylene/?-olefin copolymer having: (i) ethylene content over 50% but under 92% by mol, (ii) intrinsic viscosityover 1.2 but under 6 dL/g, (iii) density ranging from 0.850 to 0.890 g/cm3, and (iv) enthalpy of fusion under 62 J/g; c) 5% to 25% of a propylene/ethylene copolymer having: (i) propylene content over 50% but under 92% by mol, (ii) intrinsic viscosity over 2 but under 6 dL/g, (iii) density ranging from 0.850 to 0.890 g/cm3, (iv) product of reactivity ratios r1×r2 u nder 2, and (v) enthalpy of fusion under 45 J/g; wherein the weight ratio between component b and the sum of components b) and c) is 0.5 to 0.9.
    Type: Grant
    Filed: November 3, 2004
    Date of Patent: November 15, 2011
    Assignee: Basell Poliolefine Italia, s.r.l.
    Inventors: Dominic A. Berta, Giampaolo Pellegatti
  • Patent number: 8053527
    Abstract: A melt-mixed composition of non-melt flowable polytetrafluoroethylene (PTFE) and melt-fabricable perfluoropolymer is provided that exhibits thixotropy at increasing shear rate in the molten state and high elongation at break even at PTFE concentrations well above 4 wt %, based on the combined weight of the PTFE and the perfluoropolymer, e.g. at least 200% up to at least 30 wt % PTFE, the composition also exhibiting the structure of a dispersion of submicrometer-size particles of the PTFE in a continuous phase of the melt-fabricable perfluoropolymer.
    Type: Grant
    Filed: January 12, 2010
    Date of Patent: November 8, 2011
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Heidi Elizabeth Burch, Sundar Kilnagar Venkataraman, Ralph Munson Aten
  • Patent number: 8053528
    Abstract: Aqueous binder compositions for fiber mats include a urea-formaldehyde resin and an aqueous emulsion of a copolymer prepared by polymerization of a monomer mixture including styrene, an alkyl(meth)acrylate, acrylonitrile, and an unsubstituted or substituted acrylamide. Even when used in relatively low concentration, the copolymer provides improved physical properties to the fiber mat. The fiber mats can be used in composite flooring, asphalt roofing shingles, siding, and dry wall.
    Type: Grant
    Filed: May 12, 2008
    Date of Patent: November 8, 2011
    Assignee: Georgia-Pacific Chemicals LLC
    Inventor: Kelly A. Shoemake
  • Patent number: 8053525
    Abstract: A method of modifying the rheology of a thermoplastic resin that includes the steps of providing a thermoplastic resin and blending interpolymer resin particles with the thermoplastic resin. The interpolymer resin contains a styrenic polymer intercalated within a polyolefin, such that the thermoplastic resin is present as a continuous phase and the interpolymer resin is present as a dispersed phase. The method provides a rheology modified thermoplastic resin with improved physical characteristics.
    Type: Grant
    Filed: March 17, 2010
    Date of Patent: November 8, 2011
    Assignee: NOVA Chemicals Inc.
    Inventor: Eric Vignola
  • Patent number: 8048960
    Abstract: The present invention is a rubber modified monovinylidene aromatic polymer composition where the rubber is a sulfanylsilane chain end modified elastomeric polymer. In the present invention the functionalized rubber provides sufficient grafting levels in standard graft polymerization process technologies to prepare desired rubber particle size distributions and morphologies. Across a range of rubber modified monovinylidene aromatic polymers, it has been found that the use of the modified elastomeric polymers according to the present invention can improve the combinations of resin properties, particularly clarity, surface and physical properties, including both rubber modified monovinylidene aromatic homopolymers (e.g., high impact polystyrene and copolymers (e.g., ABS). The functionalized rubbers have sulfanyl functional groups that provide an optimized reactive grafting site.
    Type: Grant
    Filed: March 27, 2008
    Date of Patent: November 1, 2011
    Assignee: Styron Europe GmbH
    Inventors: Amaia Montoya-Goni, Jose M. Rego, Evemarie Hamann, Sven K. H. Thiele
  • Patent number: 8048959
    Abstract: Disclosed are poly(hydroxyalkanoic acid) compositions comprising a poly(hydroxyalkanoic acid) polymer, such as poly(lactic acid), and an impact modifier comprising a copolymer of ethylene and one or more alkyl acrylates of the formula CH2?C(R1)CO2R2, where R1 is hydrogen or an alkyl group with 1-8 carbon atoms and R2 is an alkyl group with 1-8 carbon atoms, such as methyl, ethyl, or butyl.
    Type: Grant
    Filed: April 14, 2009
    Date of Patent: November 1, 2011
    Assignee: E.I. du Pont de Nemours and Company
    Inventor: Julius Uradnisheck
  • Patent number: 8039533
    Abstract: Disclosed are a synthetic resin composition for use as building materials such as window frames, as well as a product manufactured using the same. More particularly, the synthetic resin composition comprises a tetrapolymer of acrylic rubber-styrene monomer-butadiene rubber-vinyl cyanide monomer and a styrene-vinyl cyanide copolymer having a high molecular weight and a high degree of dispersion. Unlike products manufactured using prior polyvinyl chloride (PVC), building material such as window frames manufactured using the synthetic resin composition are recyclable, and thus can contribute to a reduction in the generation of hormone-disrupting chemical dioxin, which is released in the burning thereof. Also, the resin composition can be manufactured into products having excellent properties of weather resistance and colorability without using environmental pollutants such as cadmium stearate or lead stearate, which are used as thermal stabilizers.
    Type: Grant
    Filed: October 13, 2010
    Date of Patent: October 18, 2011
    Assignee: Korea Kumho Petrochemical Co., Ltd.
    Inventors: Jang Hyun Choi, Joo Yub Ho, Seung Kyu Lee, Yun Hwan Kim
  • Patent number: 8039556
    Abstract: The present invention provides bimodal polyethylene resins in which the high molecular weight ethylene copolymer component typically has a relatively narrow molecular weight distribution, with short chain branching content being substantially constant across its molecular weight distribution. The resins of this invention are typically characterized by improved toughness and resistance to slow crack propagation properties making them useful for pressure pipe applications.
    Type: Grant
    Filed: March 17, 2010
    Date of Patent: October 18, 2011
    Assignee: Chevron Phillips Chemical Company, L.P.
    Inventors: Rajendra K. Krishnaswamy, Qing Yang
  • Patent number: 8039554
    Abstract: An ethylene-?-olefin copolymer having monomer units derived from ethylene and monomer units derived from an ?-olefin of 3 to 20 carbon atoms, a melt flow rate (MFR) of 0.01 to 4 g/10 minutes, a density of 890 to 970 kg/m3, an activation energy of flow of 50 kJ/mol or more and a molecular weight distribution measured by gel permeation chromatography of 3 or more, wherein a characteristic relaxation time (?) determined by a melt viscoelasticity measurement or an external haze ratio (EHR) satisfies a relationship of the following formula (1) or (2), respectively: 3×MFR?0.75+1.1>?>1.3×MFR?0.5+1.4??(1) EHR??15×log MFR+0.
    Type: Grant
    Filed: September 28, 2006
    Date of Patent: October 18, 2011
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Yuki Iseki, Katsuhiro Yamada, Yasutoyo Kawashima, Yoshinobu Nozue
  • Patent number: 8034878
    Abstract: The invention provides a comprising one or more ethylene interpolymers, and wherein the interpolymers, or the composition, has a melt viscosity from 1 to 30,000 cP at 177° C., and wherein at least one ethylene interpolymer has an Rv from 0.3 to 0.99. The invention further provides a composition comprising at least one low molecular weight (LMW) ethylene interpolymer, and at least one high molecular weight (HMW) ethylene interpolymer, and wherein the composition has a melt viscosity from 1 to 30,000 cP at 177° C., and wherein the sum of the Rv from the low molecular weight interpolymer and the high molecular weight interpolymer is from 0.3 to 2. The invention further provides for processes of making such compositions, processes for functionalizing the interpolymer(s) of such compositions, and articles comprising at least one component prepared from an inventive composition.
    Type: Grant
    Filed: December 12, 2006
    Date of Patent: October 11, 2011
    Assignee: Dow Global Technologies LLC
    Inventors: Teresa P. Karjala, Selim Yalvac, Cynthia L. Rickey, Sylvie Desjardins, Marc A. Springs
  • Patent number: 8030403
    Abstract: The present invention relates to a composition, in particular to a polypropylene composition, and articles thereof, having an optimal balance between mechanical properties and transparency and thus the composition is particular suitable for packaging applications.
    Type: Grant
    Filed: June 12, 2007
    Date of Patent: October 4, 2011
    Assignee: Borealis Technology Oy
    Inventors: Markus Gahleitner, Nina Ackermans, Tung Pham, Espen Ommundsen, Christelle Grein, Doris Machl
  • Patent number: 8030404
    Abstract: The present invention is directed to the incorporation of functionalized polyethylenes, in amount of about 1% to 95% by weight based upon the weight of the total crosslinkable material, into ethylene alpha olefin elastomers, such as EPDM elastomer compositions, which are crosslinked by peroxides, which results in improved properties, such as hardness and modulus of elongation, and can result in improved higher abrasion resistance, wear resistance, coefficient of friction, tensile strength, and other properties through a broad temperature range, which are beneficial to power transmission products, such as power transmission belts.
    Type: Grant
    Filed: January 20, 2010
    Date of Patent: October 4, 2011
    Assignee: Veyance Technologies, Inc.
    Inventors: Thomas George Burrowes, Michael John William Gregg
  • Patent number: 8026326
    Abstract: A composition comprising a polymer backbone and at least one side group, wherein the side group comprises a benzene ring-based chromophore comprising a ketone at the 1-position, a substituted or unsubstituted amino group at the 2-position, and an oxygen atom at the 3-position of the benzene ring. The chromophore is a kynurenine-based compound. Methods of making and using the composition are also provided. The composition can be used in an ophthalmic lens or device for protecting the retina by blocking UV rays and filtering violet rays.
    Type: Grant
    Filed: March 4, 2008
    Date of Patent: September 27, 2011
    Assignee: Benz Research and Development Corp.
    Inventors: Patrick H. Benz, Jose A. Ors
  • Patent number: 8026312
    Abstract: A polyolefin composition comprising, in percent by weight: A) 20-35% of a propylene homopolymer or copolymer with up to 8% of comonomer(s); B) 65-80% of a copolymer of ethylene and (i) propylene or (ii) CH2?CHR alpha-olefins, where R is a 2-8 carbon alkyl radical, or (iii) a combination thereof, optionally with minor amounts of a diene, containing from 40 to less than 54% of ethylene; wherein the weight ratio B/XS of the content B of copolymer component (B) to the fraction XS soluble in xylene at room temperature, both referred to the total weight of (A)+(B), is of 1.25 or less.
    Type: Grant
    Filed: October 24, 2007
    Date of Patent: September 27, 2011
    Assignee: Basell Poliolefine Italia, s.r.l.
    Inventors: Paolo Goberti, Giampaolo Pellegatti, Letizia Baraldi
  • Patent number: 8026311
    Abstract: The properties and the amounts of polymers produced in the second stage of a polymerization process in the presence of propylene and ethylene or other alpha olefin are controlled by the addition of an external electron donor to the second stage polymerization. The dosage of external donor to the second stage polymerization is based on a percentage of the dosage of external donor to a first stage polymerization of propylene in the process. The external donor added to the second stage is either the same as or different from the external donor added to the first stage.
    Type: Grant
    Filed: March 25, 2005
    Date of Patent: September 27, 2011
    Assignee: Braskem America, Inc.
    Inventors: Rubén A. Migone, Sehyun Kim
  • Patent number: 8022143
    Abstract: A dual reactor solution process gives high density polyethylene compositions containing a first ethylene polymer and a second ethylene polymer which have a good balance of processability, toughness, and environmental stress crack resistance combined with good organoleptic properties. The polyethylene compositions are suitable for compression molding or injection molding applications and are particularly useful in the manufacture of caps and closures for bottles.
    Type: Grant
    Filed: April 10, 2009
    Date of Patent: September 20, 2011
    Assignee: Nova Chemicals (International) S.A
    Inventor: XiaoChuan Wang
  • Patent number: 8022144
    Abstract: The present invention includes a polyolefin elastomeric composition comprising a propylene-based elastomer having at least seventy five weight percent units derived from propylene, the propylene-based elastomer exhibiting a heat of fusion of from 1 to 35 Joules/gram, a weight average molecular weight of from 5400 to 875000 g/mol, and a permanent set of less than 40%; and a homogeneous ethylene-alpha olefin interpolymer having a molecular weight distribution of less than 3.5, a density from 0.885 to 0.915 g/ml, and a heat of fusion of from 65 to 125 Joules/gram, wherein the ratio of the propylene-based elastomer to the homogeneous ethylene-alpha olefin interpolymer is from 97:3 to 80:20, and wherein the composition exhibits a heat of fusion from 2 to 55 Joules/gram, and a 2% secant flexural modulus of less than 69 MPa.
    Type: Grant
    Filed: January 20, 2011
    Date of Patent: September 20, 2011
    Assignee: Dow Global Technologies LLC
    Inventors: Andy C. Chang, Thomas G. Pressly
  • Patent number: 8022142
    Abstract: An in-reactor polymer blend including (a) a propylene-containing first polymer; and (b) propylene-containing second polymer having a different crystallinity from the first polymer. The polymer blend has a melting temperature, Tm, of at least 135° C., a melt flow rate of at least 70 dg/min, a tensile strength of at least 8 MPa, an elongation at break of at least 300%.
    Type: Grant
    Filed: December 15, 2008
    Date of Patent: September 20, 2011
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Peijun Jiang, Armenag H. Dekmezian, Kevin R. Squire, Carlos U. de Gracia, Keith Edward Jolibois, Cesar A. Garcia-Franco, Ronald Raymond Thackston
  • Patent number: 8017204
    Abstract: Compositions suitable for manufacturing injection molded articles having a minimum wall thickness of from 500 ?m to 2.0 mm comprise from: (A) 2 to 15% by weight of a propylene-ethylene copolymer having substantially isotactic propylene sequences; (B) 85 to 98% by weight of a random polypropylene copolymer having from 2.5 to 5.0% by weight units derived from ethylene and a melt flow rate of from 25 to 130 grams/10 minutes (g/10 min); and (C) 500 to 2500 ppm by weight of a nucleator/clarifier additive (based on the weight of the random polypropylene copolymer). Typically, the melt flow rate of the compositions is from 20 to 125 g/10 min, and the propylene-ethylene copolymer comprises at least 75% by weight propylene and has a melt flow rate from 4 to 30 g/10 min.
    Type: Grant
    Filed: January 9, 2008
    Date of Patent: September 13, 2011
    Assignee: Dow Global Technologies LLC
    Inventors: Olaf Henschke, Enrique Torres
  • Patent number: 8017206
    Abstract: Pipe systems having at least one layer comprising a semi-crystalline random polymer of propylene and 0.2 to 5 wt % 1-hexen and optionally a recurring unit selected from ethylene and a C4-C10 ?-olefin in an amount from more than 0 to 9% by moles. The polymer exhibits broad molecular weight distribution, in terms of the ratio of weight average molecular weight to numeric average molecular weight formula (I), ranging from 5 to 11, molecular weight distribution of monomodal type and hexen-1 content in the fraction with an intrinsic viscosity of equal to or higher than 3.3 dl/g lower than the hexen-1 content in the fraction with an intrinsic viscosity of less than 3.3 dl/g.
    Type: Grant
    Filed: June 16, 2005
    Date of Patent: September 13, 2011
    Assignee: Basell Poliolefine Italia s.r.l.
    Inventors: Roberto De Palo, Enrico Beccarini, Roberta Marzolla
  • Patent number: 8017692
    Abstract: A resin composition for metal plating provides a molded article exhibiting excellent metal plating adhesion strength and chemical resistance, while having excellent productivity. A metal-plated molded article can also be made from such a resin composition. The resin composition for metal plating includes 50-90% by mass of Component (A) and 10-50% by mass of Component (B), the total of Component (A) and Component (B) being 100% by mass, wherein Component (A) is a polypropylene resin, and Component (B) is a rubber-reinforced vinyl resin obtained by polymerizing a vinyl monomer in the presence of a rubber-like polymer, or a mixture of the rubber-reinforced vinyl resin and a (co)polymer of the vinyl monomer. The composition may further include 0.5-30 parts by mass of a compatibilizer (C) per 100 parts by mass of the total of Component (A) and Component (B). Component (B) is preferably a non-diene rubber-reinforced resin.
    Type: Grant
    Filed: November 20, 2007
    Date of Patent: September 13, 2011
    Assignee: Techno Polymer Co., Ltd.
    Inventors: Hiroyoshi Kaito, Takashi Kurata, Toshiyuki Higashijima
  • Patent number: 8013063
    Abstract: The present invention relates to acryl-silicone hybrid impact modifiers, the method of their manufacture, and vinyl chloride resin compositions containing the above. The acryl-silicone hybrid impact modifier of the present invention contains a seed obtained through emulsion copolymerization of vinyl monomers and hydrophilic monomers; an acryl-silicone hybrid rubber core covering the seed in which a polyorganosiloxane rubber phase is dispersed locally onto the inner part and surface of the acrylic rubber core containing alkyl acrylate polymers and a shell covering the above rubber core and containing alkyl methacrylate polymers. Thermoplastic resins containing the above, particularly by being added to vinyl chloride resins, they have effects of granting superior impact resistance, weatherability, and high gloss.
    Type: Grant
    Filed: May 13, 2004
    Date of Patent: September 6, 2011
    Assignee: LG Chem, Ltd.
    Inventors: Kwang-jin Lee, Jeong-heon Ahn, Hye-kyong Lee
  • Patent number: 8013069
    Abstract: Blends of at least two polymers incorporating propylene-derived units and processes for producing such blends are provided. The first polymer of the blend is a low crystallinity polymer including propylene-derived units. The second polymer is a high crystallinity polymer including propylene-derived units. The polymer blends exhibit the beneficial performance characteristics of low crystallinity propylene polymers while minimizing certain processing and handling problems associated with low crystallinity propylene polymers. Low crystallinity propylene polymer pellets often exhibit a tendency to agglomerate because of the softness of such particles. Agglomeration of the pellets creates problems in handling and processing the particles. The polymer blends disclosed reduce the tendency of polymer pellets to agglomerate while maintaining the desirable physical properties, such as elastomeric properties, exhibited by low crystallinity propylene polymers.
    Type: Grant
    Filed: January 13, 2006
    Date of Patent: September 6, 2011
    Assignee: Exxonmobil Chemical Patents Inc.
    Inventors: Bruce Allan Harrington, Michael Glenn Williams, Sudhin Datta, Srivatsan Srinivas Iyer
  • Patent number: 8008401
    Abstract: A polyolefin composition comprising an olefin-based thermoplastic elastomer which is superior to conventional olefin-based thermoplastic elastomers in scratch resistance and abrasion resistance and has excellent heat aging resistance is proposed. [Means for Solving the Problem] A polyolefin composition comprising a syndiotactic ?-olefin-based copolymer (A), a polyolefin resin (B) (other than polybutene (C)), polybutene (C), and if necessary, an ethylene-based copolymer rubber (D).
    Type: Grant
    Filed: September 10, 2007
    Date of Patent: August 30, 2011
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Yuichi Ito, Kazuki Mita, Ryoji Mori, Masahiko Okamoto, Toru Takehara, Masakazu Jitsukata, Hayato Kurita
  • Patent number: 8008397
    Abstract: Provided are a rubber latex having a multi-layer structure, wherein an inner-layer rubber latex has a refractive index greater than that of an outer-layer rubber latex, a graft copolymer prepared from the rubber latex, a polyvinyl chloride (PVC) resin blend containing the graft copolymer, and a method of preparing the rubber latex. The PVC resin blend containing the graft copolymer including the rubber latex according to the present invention has improved color property and low-temperature impact strength than conventional PVC resins.
    Type: Grant
    Filed: August 8, 2006
    Date of Patent: August 30, 2011
    Assignee: LG Chem, Ltd.
    Inventors: Yoon Ho Kim, Wonsuk Jang, Geon Soo Kim
  • 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
  • Patent number: 8008402
    Abstract: Modular plastic structural composites formed from a mixture of (A) high density polyolefin and one or both of: (B) a thermoplastic-coated fiber material, or (C) polystyrene, poly(methyl methacrylate), or a combination thereof. Composites molded in the form of I-Beams and bridges constructed therefrom are also disclosed.
    Type: Grant
    Filed: May 19, 2006
    Date of Patent: August 30, 2011
    Assignee: Rutgers, The State University of New Jersey
    Inventors: Jennifer K. Lynch, Thomas J. Nosker, Richard Lehman, James D. Idol, Kenneth Van Ness, Richard W. Renfree, Maryann Renfree, legal representative
  • Patent number: 8008400
    Abstract: A masterbatch composition comprising (percent by weight): A) 50%-90% of a crystalline polypropylene component comprising: AI) from 25% to 75% of a fraction having a melt flow rate MFRI of from 0.1 to 10 g/10 min.; and AII) from 75% to 25% of a fraction having a melt flow rate value MFRII equal to or lower than 100 g/10 min.; wherein the ratio MFRI/MFRII is from 5 to 60; and B) 10%-50% of a copolymer component of ethylene and at least one C3-C10 ?-olefin, containing from 15% to 50% of ethylene; said masterbatch composition having a value of the intrinsic viscosity [?] of the fraction soluble in xylene at room temperature equal to or higher than 3.5 dl/g, is added to polyolefin materials to obtain final compositions suitable for injection molding.
    Type: Grant
    Filed: March 29, 2004
    Date of Patent: August 30, 2011
    Assignee: Basell Poliolenfine Italia s.r.l.
    Inventors: Anteo Pelliconi, Enea Garagnani, Gerald J. Ennis
  • Patent number: 8003730
    Abstract: An epoxy resin mixture with at least one epoxy resin of between approximately 60 wt % and 90 wt %, a maleic anhydride of between approximately 1 wt % and approximately 30 wt %, and an imidazole catalyst of less than approximately 2 wt % where the resin mixture is formed from at least one epoxy resin with a 1-30 wt % maleic anhydride compound and an imidazole catalyst at a temperature sufficient to keep the maleic anhydride compound molten, the resin mixture reacting to form a foaming resin which can then be cured at a temperature greater than 50° C. to form an epoxy foam.
    Type: Grant
    Filed: December 16, 2008
    Date of Patent: August 23, 2011
    Assignee: Sandia Corporation
    Inventor: Mathias C. Celina
  • Patent number: 7999038
    Abstract: A weatherstrip composition includes the following polymer A group and polymer B group, Polymer A group. A polymer group is made up of a domain 1 consisting of crosslinked product of a polymer selected from a group consisting of ethylene polymer, ethylene/?-olefin copolymer (where the ?-olefin has from 3 to 20 carbons), ethylene/?-olefin/diene copolymer (where the .alpha.-olefin has from 3 to 20 carbons), homopolymer rubber of a conjugated diene monomer, copolymer polymerized with a conjugated diene monomer and an aromatic vinyl monomer, and hydrogenated copolymer polymerized with a conjugated diene monomer and an aromatic vinyl monomer (where the hydrogenation of all double bonds except for the aromatic groups is at least 50%), and a domain 2 is made up of crosslinked product of ethylene polymer or ethylene/?-olefin copolymer (where the ?-olefin has from 3 to 20 carbons).
    Type: Grant
    Filed: January 29, 2007
    Date of Patent: August 16, 2011
    Assignee: Shin-Etsu Polymer Co., Ltd.
    Inventors: Masayuki Honda, Hajime Tsujihana, Minoru Yoshida, Nobuyasu Noda
  • Patent number: 7989549
    Abstract: A polymer composition comprises a low-molecular-weight (LMW) ethylene polymer component and a high-molecular-weight (HMW) ethylene polymer component. Preferably, the LMW polyethylene component and the HMW polyethylene component co-crystallize in the composition such that it exhibits a single or substantially single peak in a lamella thickness distribution (“LTD”) curve. The ethylene polymer for the LMW and the HMW polyethylene components can be either homopolyethylene or ethylene copolymer. Preferably, both components are an ethylene copolymer of the same or different composition (i.e., with the same or different comonomers). A method of making a pipe that includes selecting a polymer composition having a substantially single peak in the LTD curve is described.
    Type: Grant
    Filed: August 12, 2005
    Date of Patent: August 2, 2011
    Assignee: Union Carbide Chemicals & Plastics Technology LLC
    Inventors: Zhiqiang Jimmy Zhou, William J. Michie, Jr.
  • Patent number: 7989083
    Abstract: To provide an acid-modified polypropylene resin which can be used for an adhesive capable of bonding a polyolefin type resin and a polar resin with sufficient force, its production process and a resin composition using it. An acid-modified polypropylene resin, which is obtained by grafting an organic acid component to a polypropylene resin, wherein the polypropylene resin is an isotactic polypropylene resin, the grafted amount X (wt %) of the organic acid component in the acid-modified polypropylene resin is within a range of from 1.0 wt % to 20.0 wt %, and the melt flow rate Y (g/10 min) of the acid-modified polypropylene resin satisfies the expression: Y?18.5 exp(0.82X), a process for producing such an acid-modified polypropylene resin, a resin composition using it and a laminate.
    Type: Grant
    Filed: April 28, 2006
    Date of Patent: August 2, 2011
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Kenichi Morikawa, Katsutoshi Ohno
  • Patent number: 7985804
    Abstract: This invention relates to a composition comprising (a) from about 5 to about 50 weight % mEPDM; and (b) from about 95 weight % to about 50 weight % of a first mPE, wherein the weight % is based on the total weight of the mEPDM and the mPE. This invention further relates to films and articles made from the compositions and methods of making the compositions, films and articles.
    Type: Grant
    Filed: June 15, 2007
    Date of Patent: July 26, 2011
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: David Michael Fiscus, Narayanaswami Raja Dharmarajan
  • Patent number: 7985361
    Abstract: A process for dispersion spinning non-melt-processible fluoropolymer fiber in which a mixture of an aqueous dispersion of non-melt-processible polytetrafluoroethylene or modified polytetrafluoroethylene fluoropolymer particles and an aqueous solution of matrix polymer is formed. The non melt-processible particles have an SSG of less than about 2.40. The aqueous dispersion contains an aliphatic alcohol ethoxylate nonionic surfactant having a 20% residuals temperature determined by thermogravimetric analysis (TGA) of less than about 290° C. and is essentially free of surfactants containing aromatic groups. The dispersion has a fluorinated surfactant content of less than about 300 ppm. The mixture is extruded into a coagulation bath containing a concentration of ions which coagulate the matrix polymer to form an intermediate fiber structure. The intermediate fiber structure is sintered to decompose the matrix polymer and coalesce.
    Type: Grant
    Filed: May 21, 2008
    Date of Patent: July 26, 2011
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Devin Flowers, Clay Woodward Jones, Robert John Cavanaugh
  • Patent number: 7985809
    Abstract: There is provided a method of making a polymer solution comprising polymerizing one or more monomer in a solvent, wherein said monomer comprises one or more ethylenically unsaturated monomer that is a multi-functional Michael donor, and wherein said solvent comprises 40% or more by weight, based on the weight of said solvent, one or more multi-functional Michael donor.
    Type: Grant
    Filed: June 13, 2008
    Date of Patent: July 26, 2011
    Assignee: Rohm and Haas Company
    Inventors: Gerhard Erich Krawczyk, Kevin Michael Miller