Solid Polymer Derived From Ethylene Or Propylene Patents (Class 525/240)
-
Publication number: 20150118469Abstract: Novel polymer blends comprise (a) 90-97% by weight of a copolymer of ethylene and an alpha olefin having from 3 to 10 carbon atoms, said copolymer having (i) a density in the range of 0.910 to 0.940 g cm?3, (ii) a melt index (190° C./2.16 kg), MI2<5, and (iii) molecular weight distribution Mw-cc/Mn-cc, by classical GPC) in the range 2.0-5.0, and (b) from 3-10% by weight of a low density polyethylene polymer having (i) a density from 0.910 to 0.920 g cm?3, (ii) a melt index (190° C./2.16 kg), MI2>2, and (iii) a melt elastic modulus G? (G?=500 Pa)>140 Pa at 190° C., wherein the sum of (a) and (b) is 100%. The copolymer component (a) may be prepared by use of metallocene catalyst systems and the novel blends exhibit an improved balance of processability and mechanical properties and are particularly useful for film applications.Type: ApplicationFiled: November 30, 2012Publication date: April 30, 2015Inventors: Choon Kooi Chai, Dominique Jan
-
Publication number: 20150119515Abstract: A composition including, as polymer basis: about 40 to 75% by weight of at least one polypropylene-based elastomer; and about 25 to 60% by weight of at least one random polypropylene copolymer.Type: ApplicationFiled: December 29, 2014Publication date: April 30, 2015Applicant: SIKA TECHNOLOGY AGInventors: Fabian FREI, Jean-Luc SCHLÄPFER
-
Patent number: 9018310Abstract: A polymer blend composition, in an exemplary embodiment, includes an impact modified polypropylene copolymer, and a low density polyethylene polymer. The ratio of an amount, by weight, of the impact modified polypropylene copolymer to an amount, by weight, of the low density polyethylene polymer is between about 6:4 to about 9:1.Type: GrantFiled: April 6, 2009Date of Patent: April 28, 2015Assignee: Polyone Designed Structures and Solutions LLCInventor: Michael J. Palama
-
Publication number: 20150111053Abstract: The present invention relates to a low density polyethylene having a molecular weight distribution Mw/Mn which is 15 or less, a storage modulus G?, measured at a loss modulus G? of 5 kPa, which is above 3000 Pa, a weight average molecular weight (Mw) which is between 192000 and 250000 g/mol and has a melt flow rate (MFR) according to ISO 1133 (190° C., 2.16 kg) which is higher than 3.0 g/10 min, compositions, a process for production of the low density polyethylene, a low density polyethylene which is obtainable by the process, a continuous ethylene polymerization method for introducing vinylidene in a low density polyethylene, a method for an extrusion coating process or a method for an extrusion lamination process, an article, e.g. an extrusion article, an extrusion lamination article, film blowing article, film casting article, wire and cable extrusion article, injection moulding article, blow moulding article or pipe extrusion article, and uses of the low density polyethylene.Type: ApplicationFiled: December 7, 2012Publication date: April 23, 2015Inventors: Auli Nummila-Pakarinen, Bernt-Ake Sultan, Bjorn Voigt, Gabriel Ruess, Martin Anker, Mattias Bergqvist, Thomas Gkourmpis, Thomas Hjertberg
-
Publication number: 20150112026Abstract: The invention relates to certain mixtures made of PE and COC, in particular for use in medical materials, so as to reduce the frictional forces.Type: ApplicationFiled: May 16, 2013Publication date: April 23, 2015Inventor: Alwin Schwitzer
-
Publication number: 20150108127Abstract: The instant invention provides a polyethylene blend-composition suitable for blown films, and films made therefrom. The polyethylene blend-composition suitable for blown films comprises the melt blending product of: (a) from 0.5 to 5 percent by weight of a high density polyethylene having a density in the range of from 0.950 to 0.970 g/cm3, and a melt flow rate (I2) in the range of from less than 0.5 g/10 minutes, and a molecular weight distribution (Mw/Mn) in the range of from 10 to 40, and Mz in the range of from 800,000 to 5,000,000 g/mol; (b) 90 percent or greater by weight of a linear low density polyethylene having a density in the range of from 0.910 to 0.950 g/cm3, and a melt index (I2) in the range of from 0.1 to less than or equal to 5 g/10 minutes; (c) optionally a hydrotalcite based neutralizing agent; (d) optionally one or more nucleating agents; (e) and optionally one or more anti-oxidants.Type: ApplicationFiled: May 22, 2013Publication date: April 23, 2015Inventors: Jian Wang, Nilesh R. Savargaonkar, Mehmet Demirors
-
Patent number: 9012564Abstract: A film containing an interpolymer of ethylene and a 3-substituted C4-10 alkene is prepared using a catalyst system comprising a Ziegler Natta or chromium oxide catalyst.Type: GrantFiled: January 12, 2010Date of Patent: April 21, 2015Assignee: Evonik Degussa GmbHInventors: Ted M Pettijohn, Michael Grass, Stefan Buchholz, Gerhard Ellermann, Anne Britt Bjaland, Arild Follestad, Jarmo Lindroos
-
Patent number: 9006342Abstract: The invention relates to a polyethylene composition with a bimodal molecular weight distribution and articles made therefrom, such as high topload blow moldings and transmission and distribution pipes. The composition comprises a low-molecular-weight (LMW) ethylene homopolymer component and a homogeneous, high-molecular-weight (HMW) ethylene interpolymer component, wherein the LMW component is characterized as having a molecular weight distribution, MWDL, of less than about 8. The composition is characterized as having a bimodal molecular weight distribution, and a ductile-brittle transition temperature, Tdb, of less than ?20° C. In some embodiments, the HMW component is characterized by a reverse comonomer distribution.Type: GrantFiled: December 5, 2012Date of Patent: April 14, 2015Assignee: Dow Global Technologies LLCInventors: Jozef J. Van Dun, Patrick J. C. Schouterden, Kalyan Sehanobish, Peter F. van den Berghen, Noorallah Jivraj, Johan Vanvoorden, Ruddy A. J. Nicasy, Ravindra S. Dixit, Frederik E. Gemoets
-
Patent number: 9006341Abstract: A polyolefin composition comprising: A) 20-95 wt % of a propylene homo-polymer or a crystalline co-polymer of propylene with ethylene and/or an alpha-olefin having 4-10 carbon atoms, containing 85 wt % or more of propylene, having an isotactic index equal to or higher than 80; B) 5-80 wt % of a copolymer of butene-1 with ethylene and/or an alpha-olefin having 3-10 carbon atoms having: a content of butene-1 derived units of 80 wt % wt or more, molecular weight distribution Mw/Mn of less than 3 flexural modulus of 60 MPa or less. Fibres and spun bond (woven non woven), disposable sanitary items (e.g. diapers) thereof.Type: GrantFiled: December 3, 2009Date of Patent: April 14, 2015Assignee: Basell Poliolefine Italia S.r.l.Inventors: Fabio Di Pietro, Roberto De Palo
-
Publication number: 20150099842Abstract: Polymer composition of a propylene copolymer and a high density polyethylene, wherein said composition has a MFR2 of at least 25.0 g/10 min and said propylene copolymer has a xylene cold soluble content in the range of 7.0 to below 20.0 wt.-%; a comonomer content in the range of 3.0 to 12.0 wt.-%; a shear thinning index (SHI 0/50) of at least 7.5; wherein further the xylene cold soluble fraction of the propylene copolymer has a comonomer content in the range of 25.0 to 45.0 wt.-%.Type: ApplicationFiled: May 17, 2013Publication date: April 9, 2015Inventors: Markus Gahleitner, Dietrich Gloger, Petar Doshev, Cornelia Tranninger
-
Patent number: 9000097Abstract: A polyolefin composition comprising (percent by weight): A) from 65% to 75% of a propylene homopolymer or a propylene copolymer containing from 0.1% to 5.0% of ethylene derived units having a fraction soluble in Xylene at 25° C. lower than 3 wt %; B) from 25% to 35% of an ethylene copolymer containing from 3% to 12% of propylene derived units; said composition having a melt flow rate (MFR) determined according to ISO method 1133 (230° C. and 2.16 kg) comprised between 11 g/10 min and 50 g/10 min; the xylene soluble fraction ranging from 3% to 15% and the intrinsic viscosity (IV) of the xylene soluble fraction ranging from 0.8 dl/g to 2 dl/g.Type: GrantFiled: July 6, 2012Date of Patent: April 7, 2015Assignee: Basell Poliolefine Italia S.r.l.Inventors: Paola Massari, Marco Ciarafoni, Tiziana Caputo
-
Patent number: 9000093Abstract: There is provided a method for producing a resin composition which is good in dispersability of a biodegradable resin. This method has a first kneading step of kneading (A) a biodegradable resin and (B) a compound that is reactive with the biodegradable resin (A) to produce a resin composition precursor, and a second kneading step of kneading the resin composition precursor and a polyolefin resin (C).Type: GrantFiled: December 8, 2008Date of Patent: April 7, 2015Assignee: Sumitomo Chemical Company, LimitedInventors: Mitsuyoshi Shimano, Satoru Moritomi
-
Patent number: 9000096Abstract: The instant invention provides a polyethylene blend composition having reduced chill roll buildup during extrusion process, and films and coating layers made therefrom. The polyethylene blend composition according to the present invention provide reduced chill roll buildups during extrusion process, and comprises: (a) from 60 to 95 percent by weight of a linear polyethylene composition comprising less than or equal to 100 percent by weight of the units derived from ethylene, and less than 15 percent by weight of units derived from one or more ?-olefin comonomers; wherein said linear polyethylene composition has a density in the range of from 0.917 to 0.975 g/cm3, a molecular weight distribution (Mw/Mn) in the range of from 1.70 to 3.62, a melt index (I2) in the range of from 2 to 50 g/10 minutes, and a vinyl unsaturation in the range of from less than 0.Type: GrantFiled: May 27, 2011Date of Patent: April 7, 2015Assignee: Dow Global Technologies LLCInventors: Jason C. Brodil, James L. Cooper, Nathan J. Wiker
-
Patent number: 9000112Abstract: The present invention relates to a resin mixture for melt processing, comprising a first resin; and a second resin comprising an acrylate-based copolymer including silica particles and having a polydispersity index (PDI) of 1 to 2.5, a method for preparing a resin-molded article using the same, and a resin-molded article. Surface characteristics of the molded article can be improved and excellent scratch resistance can be obtained by using the resin composition. In addition, processing time can be reduced, productivity is increased, and manufacturing costs are lowered by omitting the additional surface coating step.Type: GrantFiled: October 14, 2011Date of Patent: April 7, 2015Assignee: LG Chem, Ltd.Inventors: Jin Young Ryu, Houng Sik Yoo, Hak Shin Kim, Eun Joo Choi, Young Jun Hong
-
Patent number: 9000095Abstract: The invention relates to a polyethylene molding composition which has a multimodal molecular mass distribution and comprises a low molecular weight ethylene homopolymer A, a high molecular weight ethylene copolymer B and an ultrahigh molecular weight ethylene copolymer C. The molding composition has a density at a temperature of 23° C. in the range from 0.940 to 0.957 g/cm3, an MFR (190° C./2.16 kg) in the range from 0.5 to 4 dg/min and a viscosity number VN3 of the mixture of ethylene homopolymer A, copolymer B and ethylene copolymer C, measured in accordance with ISO/R 1191 in decalin at a temperature of 135° C., in the range from 150 to 300 cm3/g. The invention further relates to the use of such a molding composition for producing injection-molded finished parts, and to finished parts produced by injection molding.Type: GrantFiled: June 27, 2006Date of Patent: April 7, 2015Assignee: Basell Polyolefine GmbHInventors: Joachim Berthold, Heinz Vogt, James Stern, Albert Weber
-
Publication number: 20150094418Abstract: A dual reactor solution process gives high density polyethylene compositions containing a first ethylene copolymer and a second ethylene copolymer and which have good 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: ApplicationFiled: December 2, 2014Publication date: April 2, 2015Applicant: NOVA Chemicals (International) S.A.Inventors: XiaoChuan Wang, Yves Lacombe, Mark Edmund Weber
-
Patent number: 8993678Abstract: A heterophasic polypropylene composition comprising (percent by weight referred to the sum of components A) and B)): A) from 80% to 97% of a random copolymer of propylene containing from 0.1 to 4% of 1-hexene derived units; B) from 3-20% of a copolymer of propylene and ethylene having a content of ethylene derived units ranging from 50% to 55% extremes excluded; wherein the heterophasic polypropylene composition is endowed with a Melt Flow Rate: measured according to ISO 1133 (230° C., 5 Kg) ranging from 0.5 to 5 g/10 min; and an intrinsic viscosity (IV) of the fraction soluble in xylene at room temperature ranging from 2.5 to 5.5.Type: GrantFiled: June 8, 2011Date of Patent: March 31, 2015Assignee: Basell Polioefine Italia S.r.l.Inventors: Monica Galvan, Claudio Cavalieri, Francesca Tisi, Tiziana Caputo
-
Patent number: 8993681Abstract: Provided is a dendritic ethylene polymer. The polymer is a dendritic polymer of an ethylene/alpha-olefin-diene copolymer and a vinyl-terminated polyethylene. There is also provided a process for making a dendritic ethylene polymer. The process includes the steps of preparing a dendritic ethylene polymer by reacting ethylene/alpha-olefin-diene copolymer with vinyl-terminated polyethylene in the presence of a radical source. There is also provided a blend and a blown film that include the dendritic ethylene polymer.Type: GrantFiled: July 14, 2011Date of Patent: March 31, 2015Assignee: ExxonMobil Research and Engineering CompanyInventors: Andy H. Tsou, Shuji Luo, Donna J. Crowther, Gabor Kiss, Johannes M. Soulages, Pradeep P. Shirodkar
-
Patent number: 8993647Abstract: [Objects] It is an object to provide a foam having a low specific gravity and a small compression set, more preferably a foam having a low specific gravity, a small compression set and uniform quality, a foaming composition, and applications of the foam. [Means for Solution] The foam is obtained by foaming an olefin polymer, wherein the foam has a specific gravity (d) in the range of 0.03 to 0.30, and a compression set (CS, %) and the specific gravity (d) satisfy the formula of CS??279×(d)+95. The foam is preferably obtained from a foaming composition that includes an ethylene polymer (A) including a specific ethylene/?-olefin copolymer (A1) and an ethylene/polar monomer copolymer (A2) in a specific mass ratio, and a specific ethylene/C3-20 ?-olefin/non-conjugated polyene copolymer (B).Type: GrantFiled: May 10, 2007Date of Patent: March 31, 2015Assignee: Mitsui Chemicals, Inc.Inventors: Takayuki Kajihara, Kiminori Noda, Masayoshi Yamaguchi, Takashi Hakuta
-
Patent number: 8991573Abstract: A damper having an elastic body formed from a cross-linking product of an EPDM composition, which comprises (a) 100 parts by weight of at least one kind of EPDM, whose propylene content in sum total of ethylene and propylene in the copolymerization rubber is 35-50 wt. %, the EPDM having a Mooney viscosity (ML100) of not less than 40, (b) 5-50 parts by weight of ?-olefin oligomer, which is a polymer of ?-olefin represented by the general formula, CH2CHR, where R is an alkyl group having 3-12 carbon atoms, with a number average molecular weight Mn of 300-1,400 and (c) 1-10 parts by weight of an organic peroxide cross-linking agent.Type: GrantFiled: November 10, 2004Date of Patent: March 31, 2015Assignees: NOK Corporation, Honda Motor Co., Ltd.Inventors: Makoto Sanpei, Motoyuki Sunaoka, Shinji Yamada, Nobuyoshi Takamatsu
-
Publication number: 20150087787Abstract: Polymer blends of polypropylene homopolymer and propylene-?-olefin interpolymer. Processes for producing polymeric compositions comprising control-cooling heated blends of polypropylene and propylene-?-olefin interpolymer. Such polymeric compositions can be employed in forming coated wires and cables.Type: ApplicationFiled: February 22, 2013Publication date: March 26, 2015Applicants: Dow Global Technologies LLC, GnoSys Global Ltd., University of SouthamptonInventor: Simon Sutton
-
Publication number: 20150086739Abstract: Unoriented film comprising at least one layer of a polymer composition comprising a styrenic based elastomer and a propylene copolymer.Type: ApplicationFiled: March 25, 2013Publication date: March 26, 2015Inventors: Klaus Bernreitner, Markus Gahleitner, Manfred Gruenberger, Martina Sandholzer
-
Publication number: 20150087786Abstract: A polypropylene resin composition affords a molded article good in rigidity, impact resistance, and tensile elongation at break. This composition contains 75-98 wt % of a propylene-based material (A) and 2-25 wt % of a propylene-ethylene random copolymer (B). Material (A) contains 50-100 wt % of a polymeric material (A-1) produced by multistage polymerization and composed of a propylene homopolymer component (i) and a propylene-ethylene random copolymer component (ii), and 0-50 wt % of a propylene homopolymer (A-2). The content of (i) in material (A-1) is 55-90 wt %, and the content of (ii) is 10-45 wt %, (ii) in material (A-1) contains >40 wt % but ?80 wt % of ethylene units and ?20 wt % but <60 wt % of propylene units, and the content of (ii) in material (A) is 5-35 wt %. Copolymer (B) contains 88-95 wt % of propylene units and 5-12 wt % of ethylene units and has an MFR of 0.5-10 g/10 minutes measured at 230° C. and a load of 2.16 kgf.Type: ApplicationFiled: March 18, 2013Publication date: March 26, 2015Applicant: Sumitomo Chemical Company, LimitedInventor: Toshiya Maruyama
-
Patent number: 8987382Abstract: The present invention is a method for increasing the melt strength of a polyethylene resin comprising reacting the polyethylene resin with a free radical generator with a decomposition energy in between ?50 kJoule/mole and ?250 kJoules/mole and a peak decomposition temperature of less than 280 degree C. The resulting resin has increased melt strength with higher ratio of elongational viscosities at 0.1 to 100 rad/s when compared to substantially similar polyethylene resins which have not been reacted with a free radical generator such as an alkoxy amine derivative.Type: GrantFiled: January 11, 2011Date of Patent: March 24, 2015Assignee: Dow Global Technologies LLCInventors: Mehmet Demirors, Teresa Karjala, Nicolas Mazzola
-
Publication number: 20150080533Abstract: A polyolefin manufacturing system and method including polymerizing olefin in a first reactor to form a polyolefin, transferring the polyolefin to a second reactor, polymerizing olefin in the second reactor, and discharging a product polyolefin from the second reactor. The system and method including operating the first reactor with a first reactor pressure relief system and the second reactor with a second reactor pressure relief system, both pressure relief systems to discharge to a flare system, and wherein a relief instrumented system (RIS) is configured to direct at least one process interlock that mitigates an excess reaction scenario as an overpressure relief scenario.Type: ApplicationFiled: September 19, 2013Publication date: March 19, 2015Applicant: CHEVRON PHILLIPS CHEMICAL COMPANY, LPInventors: Thanh T. Nguyen, Ralph Romig, Carolyn Lehman, Joel Mutchler
-
Patent number: 8981007Abstract: Provided is a non-crosslinked polyethylene composition for a power cable in which crosslinked polyethylene widely used in the world as an existing insulator for a power cable is replaced with a non-crosslinked polyethylene resin, and more particularly, a non-crosslinked polyethylene composition for a power cable having excellent processability, AC dielectric breakdown strength, space charge distribution, and water tree resistance.Type: GrantFiled: March 25, 2013Date of Patent: March 17, 2015Assignees: SK Innovation Co., Ltd., SK Global Chemical Co., Ltd.Inventors: Jae Soon Lee, Kyu Cheol Cho, Kwang Hoi Ku
-
Patent number: 8981028Abstract: Copolymers, especially multi-block copolymer containing therein two or more segments or blocks differing in tacticity, are prepared by polymerizing propylene, 4-methyl-1-pentene, or another C4-8 ?-olefin in the presence of a composition comprising the admixture or reaction product resulting from combining: (A) a first metal complex olefin polymerization catalyst, (B) a second metal complex olefin polymerization catalyst capable of preparing polymers differing in tacticity from the polymer prepared by catalyst (A) under equivalent polymerization conditions, and (C) a chain shuttling agent.Type: GrantFiled: January 30, 2006Date of Patent: March 17, 2015Assignee: Dow Global Technologies LLCInventor: Phillip D. Hustad
-
Patent number: 8979330Abstract: An anisotropic light-diffusing film, an anisotropic light-diffusing laminate, and an anisotropic light-reflecting laminate are provided which are excellent in both light transmittance and diffusivity. Also provided are a lighting equipment and a display device which employ any of the film and laminates and are excellent in light-diffusivity and brightness and in economy, etc. The anisotropic light-diffusing film is a film formed by melt-extruding a mixture of at least two thermoplastic resins incompatible with each other. The film has parallel light ray transmittance of 20-85%, haze of 10-80%, glossiness of 10-70%, and ratio of the vertical-direction diffusivity to the horizontal-direction diffusivity of transmitted light of 1.3-6.0. The anisotropic light-reflecting laminate comprises a light reflector and the anisotropic light-diffusing film laminated over at least one surface of the reflector.Type: GrantFiled: August 6, 2009Date of Patent: March 17, 2015Assignee: Toyo Boseki Kabushiki KaishaInventors: Katsuaki Kuze, Kenji Kawai
-
Publication number: 20150072095Abstract: Molded article comprising a propylene copolymer having a xylene cold soluble content (XCS) in the range of 35 to 60 wt.-% and a comonomer content in the range of 7.0 to 17.0 wt-%, wherein further the propylene copolymer fulfills inequation (I), wherein Co (total) is the comonomer content [wt.-%] of the propylene copolymer Co (XCS) is the comonomer content [wt.-%] of the xylene cold soluble fraction (XCS) of the propylene copolymer. Co ? ? ( total ) Co ? ? ( XCS ) ? 0.Type: ApplicationFiled: April 19, 2013Publication date: March 12, 2015Inventors: Markus Gahleitner, Klaus Bernreitner, Katja Klimke, Martina Sandholzer
-
Patent number: 8975354Abstract: A polypropylene-based resin composition including 100 parts by weight of the following component (A), 18 parts by weight or more and 65 parts by weight or less of the following component (B), 6 parts by weight or more and 45 parts by weight or less of the following component (C), 25 parts by weight or more and 60 parts by weight or less of the following component (D), 0.1 part by weight or more and 6.5 parts by weight or less of the following component (E) and 0.15 part by weight or more and 5.0 parts or less by weight of the following component (F): (A) a specific propylene-ethylene block copolymer A: (B) a specific propylene-ethylene block copolymer B: (C) an ethylene-?-olefin copolymer having a melt flow rate (230° C., under the load of 2.16 kg) of 0.5 g/10 min or more and 20 g/10 min or less; (D) an inorganic filler having an average particle diameter of 1 ?m or more and 14 ?m or less; (E) an acid-modified polypropylene; and (F) a lubricant.Type: GrantFiled: January 27, 2012Date of Patent: March 10, 2015Assignee: Prime Polymer Co., Ltd.Inventors: Tatsuya Kusumoto, Yoshio Sugimoto, Mitsuru Fujisawa
-
Patent number: 8975338Abstract: A propylene composition comprising (percent by weight): A) 60%-90%, of a crystalline propylene copolymer containing from 3.5% to 10% of ethylene derived units; B) 10%-40%, of a copolymer of propylene containing from 18.5% to 23.5%, of ethylene derived units.Type: GrantFiled: April 29, 2010Date of Patent: March 10, 2015Assignee: Basell Poliolefine Italia S.r.l.Inventors: Marco Ciarafoni, Paola Massari, Gisella Biondini, Tiziana Caputo, Monica Galvan
-
Publication number: 20150065656Abstract: Polymer compositions that include an ethylene-based polymer and a broad molecular weight distribution propylene-based polymer having a melt strength of 20.0 cN to 200.0 cN; and optionally, a propylene-based elastomer are described. The invention also includes articles, such as films, produced from such compositions and methods of making such compositions and methods of improving melt strength.Type: ApplicationFiled: July 11, 2014Publication date: March 5, 2015Inventors: Mallarie D. McCune, Jianya Cheng, Steven A. Best
-
Publication number: 20150065657Abstract: Resins suitable for rotomolded articles comprise a bimodal polyethylene copolymer comprising from 0.1 to 5 weight % of one or more C6-8 alpha olefins and the balance ethylene, comprising from 20 to 50 weight % of a higher molecular weight polymer component having an Mw greater than 120,000 and correspondingly from 80 to 50 weight % of a lower molecular weight polymer component having an Mw less than 100,000 having a density greater than 0.942 g/cc [but less than 0.965 g/cc] and a bent strip ESCR as determined by ASTM D 1693 in 100% Igepal® CO-630 (ethoxylated nonylphenols) for conditions A and B of greater than 1000 hours. The resulting articles have a very good balance of properties and significant ESCR.Type: ApplicationFiled: November 7, 2014Publication date: March 5, 2015Applicant: NOVA CHEMICALS (INTERNATIONAL) S.A.Inventors: Celine Bellehumeur, Yves Lacombe, Mark Hoidas
-
Publication number: 20150065616Abstract: A method for improving the throughput of solid-state shear pulverization and solid-state melt-extrusion devices may include the addition of a heat absorbing material with a mixture of polymeric materials in an extruder. The extruder may include one or more extrusion screws. One or more portions of the one or more extrusion screws, one or more barrel sections, and/or one or more extruder work zones may be temperature controlled to maintain a temperature of the polymeric mixture in contact therewith at or below the liquefication temperature of the polymeric materials. The liquefication temperature may be a melting point of a semi-crystalline polymer or a glass transition temperature of an amorphous polymer.Type: ApplicationFiled: September 3, 2014Publication date: March 5, 2015Inventors: Philip BRUNNER, Mark TAPSAK, Michael JANSE
-
Publication number: 20150065595Abstract: The present disclosure relates to a polyethylene resin composition contains an ethylene homopolymer.Type: ApplicationFiled: September 4, 2014Publication date: March 5, 2015Applicant: Asahi Kasei Chemicals CorporationInventors: Hideki NASU, Akio FUJIWARA, Ryoji TANAKA
-
Patent number: 8969494Abstract: This invention discloses caps and closures produced by injection molding with a bimodal high density polyethylene (HDPE) resin comprising a low molecular weight, high density polyethylene fraction substantially free of comonomer and a high molecular weight, low density polyethylene fraction, having a molecular weight distribution of at least 3.5, preferably greater than 4.0, prepared in two reactors connected in series in the presence of a metallocene-containing catalyst system, wherein the metallocene comprises a bisindenyl or a bis-tetrahydrogenated-indenyl component.Type: GrantFiled: September 9, 2013Date of Patent: March 3, 2015Assignee: Total Research & Technology FeluyInventors: Alain Standaert, Romain Luijkx, Martine Slawinski, Aurelien Vantomme
-
Patent number: 8969481Abstract: Thermoplastic elastomer compositions and methods for making same. The elastomer composition can include at least one partially cured rubber component that is an ethylene-alpha-olefin-vinyl norbornene elastomeric polymer, and at least one thermoplastic component. The rubber component is at least partially cured using a peroxide curative in an amount effective to yield a cure level of the rubber component of at least 85%. The rubber component has a molecular weight distribution (MWD) less than 6, and a branching index greater than 0.60.Type: GrantFiled: November 5, 2009Date of Patent: March 3, 2015Assignee: ExxonMobil Chemical Patent Inc.Inventors: Maria D. Ellul, Periagaram S. Ravishankar
-
Publication number: 20150057408Abstract: This invention relates to a thermoplastic polyolefin composition having a melt flow rate MFR2 (230° C.) between 20 and 100 g/10 min, to the use of such thermoplastic polyolefin composition for the production of injection moulded articles, e.g. automotive parts and to injection moulded articles prepared by using such thermoplastic polyolefin composition.Type: ApplicationFiled: April 3, 2013Publication date: February 26, 2015Inventors: Renate Eckmayr, Georg Grestenberger, Gregory Potter
-
Patent number: 8962762Abstract: Provided are thermoplastic polymer compositions having a single melting point, articles made therefrom, and methods for elevating the melting point of low melting point polymers. Thermoplastic polymer compositions are composed of one or more high melting point polyolefins and a thermoplastic component that includes a low melting point polypropylene. High melting point polyolefins are composed of a stereoregular polypropylene having a tacticity similar to the low melting point polypropylene. The low melting point polypropylene includes, for example, propylene homopolymers and copolymers composed of propylene and one or more comonomers. Thermoplastic polymer compositions may also optionally contain any of the various additives commonly used in such polymer compositions, such as for example oils, etc. In one embodiment, thermoplastic polymer compositions are thermoplastic elastomer compositions that include an elastomeric component composed of an elastomer or rubber.Type: GrantFiled: April 14, 2008Date of Patent: February 24, 2015Assignee: ExxonMobil Chemical Patents Inc.Inventors: Periagaram S. Ravishankar, Maria D. Ellul
-
Patent number: 8962758Abstract: The present invention aims to provide a dynamically-crosslinked thermoplastic elastomer composition that can provide a molded product exhibiting low compression set especially in the case of being cooled under stress. The present invention relates to a thermoplastic elastomer composition, including a dynamically-crosslinked butyl rubber and a thermoplastic resin; and having a thermoplastic resin content of not more than 8% by mass. The dynamically-crosslinked butyl rubber is preferably a halogen-containing butyl rubber.Type: GrantFiled: September 14, 2012Date of Patent: February 24, 2015Assignee: Sumitomo Rubber Industries, Ltd.Inventors: Kazuo Hochi, Yasuhisa Minagawa
-
Patent number: 8962763Abstract: A polypropylene composition for injection-molded drainage systems comprising 78-84 wt % of a crystalline propylene polymer, 8 to less than 13 wt % of an elastomeric copolymer and 8 to less than 13 wt % of polyethylene. The said composition exhibits a flexural modulus value higher than 1400 MPa, a melt flow rate (MFR), determined according to ISO method 1133 (230° C. and 2.16 kg), of from 1.5 to 5.0 g/10 min, and a value of Izod impact resistance at 0° C. of more than 6 kJ/m2 according to ISO method 180/1A.Type: GrantFiled: December 14, 2010Date of Patent: February 24, 2015Assignee: Basell Poliolefine Italia S.r.l.Inventors: Claudio Cavalieri, Monica Galvan, Roberto Pantaleoni, Enrico Beccarini, Francesca Tisi, Werner Rothhöft
-
Patent number: 8962974Abstract: Means for solving the problems The thermoplastic resin composition (X1) of the present invention comprises (A1), (B1), (C1), and optionally (D1) below: 1 to 90 wt % of an isotactic polypropylene (A1); 9 to 98 wt % of a propylene/ethylene/?-olefin copolymer (B1) containing 45 to 89 mol % of propylene-derived structural units, 10 to 25 mol % of ethylene-derived structural units, and optionally, 0 to 30 mol % of C4-C20 ?-olefin-derived structural units (a1); 1 to 80 wt % of a styrene-based elastomer (C1); and 0 to 70 wt % of an ethylene/?-olefin copolymer (D1) whose density is in the range of 0.850 to 0.910 g/cm3, wherein (A1)+(B1)+(C1)+(D1)=100 wt %.Type: GrantFiled: September 14, 2012Date of Patent: February 24, 2015Assignee: Mitsui Chemicals, Inc.Inventors: Hiroshi Hoya, Kiminori Noda, Norihide Inoue, Hiroshi Uehara, Eiji Shiba, Masayoshi Yamaguchi, Manabu Kawamoto, Akira Yamashita
-
Patent number: 8962755Abstract: A dual reactor solution process gives high density polyethylene compositions containing a first ethylene copolymer and a second ethylene copolymer and which have good 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: GrantFiled: August 31, 2012Date of Patent: February 24, 2015Assignee: Nova Chemicals (International) S.A.Inventors: XiaoChuan Wang, Yves Lacombe, Mark Edmund Weber
-
Publication number: 20150051308Abstract: Provided are a polymethylpentene conjugate fiber, which is capable of imparting to a lightweight polymethylpentene fiber an ability to develop a vivid and deep color, and a porous polymethylpentene fiber, which has a lightweight, a high pore diameter uniformity and a high porosity retention ratio against an external force, said polymethylpentene conjugate fiber and said porous polymethylpentene fiber being appropriately usable as a fiber structure for woven knitted goods, non-woven fabrics, yarns, cotton waddings, etc. The polymethylpentene conjugate fiber is characterized by having an island-in-sea structure wherein the sea component comprises a polymethylpentene-based resin and the island component comprises a thermoplastic resin. The porous polymethylpentene fiber, which comprises a polymethylpentene-based resin, is characterized in that the coefficient of variation (CV) of pore diameter at the fiber cross section is 1-50%.Type: ApplicationFiled: March 7, 2013Publication date: February 19, 2015Applicant: TORAY INDUSTRIES, INC.Inventors: Hidekazu Kano, Shogo Hamanaka, Yoshitaka Aranishi
-
Publication number: 20150051350Abstract: Extruded or molded profiles comprising a polyolefin composition consisting of 85% by weight or more of a copolymer of 1-butene with ethylene (A) having an ethylene copolymerized content up to 18% by mol, and having Mw/Mn lower than 3, hardness shore A (measured according to ISO 868) lower than 90, no melting point (TmII) detectable at the DSC after cancelling the thermal history, melting enthalpy (?Hf), measured by DSC after 10 days of aging at room temperature, comprised between 4 and 15 J/g; and up to 15% by weight of a propylene copolymer or a composition of copolymers of propylene (B) having a melting point from about 126° C. to 200° C., isotactic index greater than 90%.Type: ApplicationFiled: February 12, 2013Publication date: February 19, 2015Applicant: Basell Poliolefine Italia S.r.I.Inventors: Paolo Ferrari, Luca Lunghi, Roberta Marchini, Stefano Spataro, Giampaolo Pellegatti, Caroline Cathelin, Stefano Pasquali
-
Publication number: 20150051351Abstract: Propylene polymer compositions comprising: A) from 70 wt % to 95 wt %, of a random copolymer of propylene with ethylene, containing from 3.5 wt % to 6.5 wt % of ethylene derived units, having a content of fraction insoluble in xylene at 25° C. of not less than 93 wt %; B) from 5 wt % to 35 wt %, of a copolymer of propylene with ethylene, containing from 8.5 Wt % to 17.0 wt % of ethylene derived units; the sum A+B being 100; the melt flow rate ,MFR (ISO 1133 (230° C., 2.16 kg) ranges from 0.6 g/10 min to 20.2 g/10 min.Type: ApplicationFiled: March 12, 2013Publication date: February 19, 2015Applicant: Basell Poliolefine Italia S.r.l.Inventors: Mara Destro, Marco Ciarafoni, Paola Massari, Stefano Squarzoni
-
Patent number: 8957158Abstract: A novel PE material is devised showing excellent mechanical/optical properties and process ability, e.g. for film extrusion. The polyethylene of the invention is produced in one single e.g. gas phase reactor.Type: GrantFiled: September 22, 2009Date of Patent: February 17, 2015Assignee: Basell Polyolefine GmbHInventors: Fabiana Fantinel, Gerd Mannebach, Shahram Mihan, Gerhardus Meier, Iakovos Vittorias
-
Patent number: 8957159Abstract: This invention relates to an adhesive comprising an olefin polymer composition comprising a first amorphous polymer having a crystallinity of 5% or less, prepared with a first catalyst; and a second crystalline polymer, differing in chemical and physical properties from the first polymer, having a crystallinity of 20% or more, prepared with a second catalyst; and where the olefin polymer composition has a Dot T-Peel of 1 Newton or more on Kraft paper; an Mw of at least 7,000 to 80,000; a branching index (g?) of from 0.4 to 0.90 measured at the Mz of the polymer composition; and a crystallinity of between 5 and 40%.Type: GrantFiled: September 10, 2013Date of Patent: February 17, 2015Assignee: ExxonMobil Chemical Patents Inc.Inventors: Peijun Jiang, Armenag Hagop Dekmezian, Jo Ann Marie Canich, Charles Lewis Sims, Ramin Abhari, Cesar Alberto Garcia-Franco, David Raymond Johnsrud
-
Patent number: 8957157Abstract: Disclosed is an injection molded article made of a resin composition comprising 15 to 40% by mass of ultrahigh molecular weight polyethylene fibers, and 60 to 85% by mass of a thermoplastic resin having a melt flow rate of 70 to 500 g/10 min. measured at a temperature of 230° C. and a load of 21.2 N, and a fusion peak temperature lower than 160° C. measured with a differential scanning calorimeter, where the combined mass of the ultrahigh molecular weight polyethylene fibers and the thermoplastic resin is taken as 100% by mass, wherein the injection molded article satisfies the following requirements: the intrinsic volume resistivity is 1.0×1015 ?·cm or more, the thermal conductivity is 1 W/m·K or more, and the specific gravity is 1.2 or less. The article is high in rigidity, impact resistance, electrically insulating property, and thermal conductivity.Type: GrantFiled: September 6, 2013Date of Patent: February 17, 2015Assignee: Sumitomo Chemical Company, LimitedInventors: Kenji Atarashi, Tetsuro Dobashi
-
Publication number: 20150044405Abstract: A polypropylene-based resin composition is provided that can provide a foam molding that exhibits an excellent closed cell characteristic and excellent extrusion characteristics, that is light weight and has a rigid feel, and that has an excellent recyclability.Type: ApplicationFiled: October 17, 2012Publication date: February 12, 2015Applicant: JAPAN POLYPROPYLENE CORPORATIONInventors: Motoki Kaneno, Koji Yamashita, Hiroshi Tsuji, Akihiro Suzuki, Shinichi Kitade, Masaru Aoki, Isamu Terayama