Solid Polymer Derived From Ethylene Or Propylene Patents (Class 525/240)
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Patent number: 8802780Abstract: The present invention relates to a process for the preparation of an article, comprising the following steps: (a) providing a component (i) which comprises a blend of (a1) an unsaturated first polyolefin having a certain total amount m1 of carbon-carbon double bonds/1000 carbon atoms, (a2) a crosslinking agent, (a3) optionally an unsaturated low molecular weight compound having a certain total amount m2 carbon-carbon double bonds/1000 carbon atoms, (b) providing a component (ii) which comprises a second polymer having a certain total amount m3 of carbon-carbon double bonds/1000 carbon atoms, wherein m1, m2 and m3 satisfy a certain relationship, (c) forming a blend of component (i) and component (ii) wherein the weight ratio of the component (i) to the component (ii) is within the range of 10:90 to 99:1, (d) applying one or more layers of the blend onto a substrate.Type: GrantFiled: December 17, 2008Date of Patent: August 12, 2014Assignee: Borealis Technology OyInventors: Nigel Hampton, Annika Smedberg
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Publication number: 20140221516Abstract: There are provided a polyolefin resin composition having excellent mechanical properties and thermal resistance; a film formed of the polyolefin resin composition, which has excellent mechanical properties and thermal resistance and which is less likely to suffer from fisheyes; a microporous membrane having excellent permeability and shutdown properties in addition to the above-mentioned physical properties; and applications thereof. Such objects are accomplished by a polyolefin resin composition containing an ultra-high molecular weight ethylene polymer (A), a 4-methyl-1-pentene polymer or 3-methyl-1-pentene polymer (B), and a polymer of an olefin having 2 to 12 carbon atoms (C) at an intended ratio.Type: ApplicationFiled: August 29, 2012Publication date: August 7, 2014Applicant: MITSUI CHEMICALS, INC.Inventors: Nobuhisa Mikawa, Motoyasu Yasui, Akiyoshi Taguchi, Kazuto Sugiyama, Yasuhiro Kai, Kenji Sugimura
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Publication number: 20140221559Abstract: The invention provides a composition comprising at least the following: A) an ethylene/a-olefin interpolymer with a density ?0.90 g/cc, and an I2 greater than 10; B) a functionalized olefin-based polymer; and C) an olefin-based polymer with a density greater than 0.90 g/cc, and selected from the group consisting of the following: a) an ethylene homopolymer, b) an ethylene/?-olefin interpolymer, c) a propylene/ethylene interpolymer, and d) a propylene/?-olefin interpolymer; and wherein the [density (C)?density (A)] is greater than, or equal to, 0.017; and wherein the weight ratio of [(A+C)/B] is greater than, or equal to, 3.0.Type: ApplicationFiled: September 21, 2012Publication date: August 7, 2014Applicant: Dow Global Technologies LLCInventor: Ronald J. Weeks
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Publication number: 20140221558Abstract: 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: ApplicationFiled: May 27, 2011Publication date: August 7, 2014Applicant: Dow Global Technologies LLCInventors: Jason C. Brodil, James L. Cooper, Nathan J. Wiker
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Patent number: 8796373Abstract: Provided is a polymer composition usable as a covering material of a power cable for outdoors, and more particularly, a non-crosslinked polyethylene composition for a power cable using a non-crosslinked type polyethylene resin instead of using a crosslinked polyethylene which is widely used around the world as the existing power cable insulator. The power cable using a covering material made of the polymer composition according to the present disclosure may have excellent tracking resistance to be appropriately used in costal areas containing large salts, industrial complexes containing large pollutants, and the like.Type: GrantFiled: February 5, 2014Date of Patent: August 5, 2014Assignees: SK Innovation Co., Ltd., SK Global Chemical Co., Ltd.Inventors: Gyuchan Cho, Kwanghoi Ku, Jaesoon Lee, Kyucheol Cho
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Patent number: 8796385Abstract: A polyolefin composition having unusually low values of flexural modulus and shore hardness and comprising, in percent by weight: A) 15-40% of a copolymer of propylene with hexene-1 containing from 2.5 to 10% of hexene-1 and having Melt Flow Rate (MFR, measured according to ISO 1133, 230° C./2.16 Kg) from 0.5 to 100 g/10 min.; and B) 60-85% of an ethylene copolymer containing ethylene in a quantity equal to or lower than 40%, and having solubility in xylene at room temperature greater than 70%.Type: GrantFiled: December 9, 2008Date of Patent: August 5, 2014Assignee: Basell Poliolefine Italia S.r.l.Inventors: Giampaolo Pellegatti, Paolo Goberti
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Patent number: 8796383Abstract: Films (or a cap layer of co-extruded films) and methods of forming the same are described herein. The films generally include a modified olefin based polymer including polypropylene and from 1 wt. % to 30 wt. % polylactic acid (PLA), wherein the modified olefin based polymer exhibits a seal initiation temperature (SIT) that is at least 5° C. less than a seal initiation temperature of the polypropylene absent the PLA and a hot tack range of at least 20° C.Type: GrantFiled: February 2, 2011Date of Patent: August 5, 2014Assignee: Fina Technology, Inc.Inventors: Fengkui Li, John Ashbaugh
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Publication number: 20140213719Abstract: Polyolefin composition comprising (a) a heterophasic propylene copolymer comprising a polypropylene (PP) having a melt flow rate MFR2 (230° C.) of 30 to 350 g/10 min, and an elastomeric propylene copolymer (E) having an intrinsic viscosity (IV) in the range of 1.5 to 3.0 dl/g and (b) a polyethylene having a melt flow rate MFR2 (190° C.) of 15 to 100 g/10 min, wherein (i) the total polyolefin composition has a melt flow rate MFR2 (230° C.) of more than 15 to 200 g/10 min, and (ii) the weight ratio of elastomeric propylene copolymer to the polyethylene is below 2.0.Type: ApplicationFiled: July 11, 2012Publication date: July 31, 2014Applicant: BOREALIS AGInventors: Markus Gahleitner, Georg Grestenberger, Christelle Grein, Cornelia Kock
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Publication number: 20140208619Abstract: 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: ApplicationFiled: January 29, 2013Publication date: July 31, 2014Applicant: ExxonMobil Chemical Patents Inc.Inventors: Leander Kenens, Randal H. Kerstetter, III
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Patent number: 8791205Abstract: The invention is related to compositions suitable for the fabrication of pipes, and other articles, with excellent performance properties. The invention provides a composition, comprising a blend, wherein said blend comprises a high molecular weight ethylene-based interpolymer and a low molecular weight ethylene-based interpolymer, and the high molecular weight ethylene-based interpolymer is a heterogeneously branched linear or a homogeneously branched linear ethylene-based interpolymer, and has a density from 0.922 g/cc to 0.929 g/cc, and a high load melt index (I21) from 0.2 g/10 min to 1.0 g/10 min, and the low molecular weight ethylene-based interpolymer is heterogeneously branched linear or a homogeneously branched linear ethylene-based interpolymer, and has a density from 0.940 g/cc to 0.955 g/cc, and a melt index (I2) from 6 g/10 min to 50 g/10 min. The blend has a single peak in an ATREF profile eluting above 30° C., and has a coefficient of viscosity average molecular weight (CMv) less than ?0.Type: GrantFiled: December 17, 2012Date of Patent: July 29, 2014Assignee: Dow Global Technologies LLCInventors: William J. Michie, Jr., Dane Chang, Lonnie G. Hazlitt, Stephanie M. Whited, Michael A. Kinnan, Anthony C. Neubauer, Thoi H. Ho
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Patent number: 8791206Abstract: The present invention relates to a polypropylene composition containing: 100 parts by weight of a blending mixture containing 35 to 45% by weight of a polypropylene copolymer having an ethylene content of 4 to 20% by weight, 7 to 12% by weight of high-density polyethylene, 40 to 50% by weight of an ethylene-?-olefin copolymer rubber, and 5 to 10% by weight of a compatibilizer, and 0.05 to 0.1 parts by weight of a flow adjuster.Type: GrantFiled: March 11, 2013Date of Patent: July 29, 2014Assignee: Toyoda Gosei Co., Ltd.Inventors: Toshihiko Asai, Hajime Miwa
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Patent number: 8791208Abstract: Provided is a sheet for a solar cell encapsulant containing (A) an ethylene-based polymer having a melting point of 90° C. or higher and containing an ethylene-derived constituent unit as a main component; (B) an ethylene-vinyl acetate copolymer having a vinyl acetate-derived constituent unit at a content ratio of from 19% to 40% by mass; and (C) a silane coupling agent having an amino group. The sheet for solar cell encapsulant has the excellent transparency and flexibility possessed by an ethylene-vinyl acetate copolymer. Furthermore, a crosslinking treatment is substantially unnecessary, and adhesiveness and adhesion stability that are appropriate for practical use are obtained.Type: GrantFiled: February 15, 2010Date of Patent: July 29, 2014Assignee: Du Pont-Mitsui Polychemicals Co., Ltd.Inventors: Koichi Nishijima, Yasuki Shibata, Koji Kawano
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Publication number: 20140206819Abstract: A heterophasic polypropylene resin comprising a polypropylene homopolymer matrix phase (A) and an ethylene-propylene copolymer phase (B) dispersed within the matrix, wherein the xylene soluble fraction of the heterophasic polypropylene resin is in the range 20 to less than 50 wt %; the heterophasic polypropylene resin has an MFR2 of 0.01 to 50 g/10 min; the ethylene content of the xylene soluble fraction of the heterophasic polypropylene resin is in the range of at least 20 wt % to less than 50 wt %; the heterophasic polypropylene resin has a notched charpy impact strength at ?20 C of at least 25 kJ/m2, preferably at least 50 kJ/m2; and wherein the MFR2 (Matrix)/MFR2(XS)?5, preferably ?10.Type: ApplicationFiled: July 6, 2012Publication date: July 24, 2014Applicant: BOREALIS AGInventors: Norbert Hafner, Luigi Resconi, Markus Gahleitner, Jimgbo Wang, Pascal Castro, Pavel Sergeevich Kulyabin, Vyatcheslav Izmer, Alexander Virkkunen, Dmitry Kononovich, Ville Virkkunen
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Publication number: 20140199545Abstract: The present invention provides a hot melt adhesive for high-speed coating and spiral coating at low temperature. The hot melt adhesive has excellent adhesion to polyethylene and nonwoven fabric, and is suitable for disposable products. The hot melt adhesive comprises: (A) a propylene homopolymer having a melting point of 100° C. or lower which is obtainable by polymerizing propylene using a metallocene catalyst; and (B) an ethylene-based copolymer.Type: ApplicationFiled: March 14, 2014Publication date: July 17, 2014Applicant: HENKEL AG & CO. KGAAInventors: Masahiro Moriguchi, Shigekazu Saito
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Patent number: 8779063Abstract: A cross-linked composition, obtained by cross-linking polyolefin composition comprising, all percentages being by weight: A) from 5 to 38% of a polypropylene component; B) from 35 to 85% of a copolymer of ethylene with propylene, containing from 42 to 70% of ethylene and having solubility in xylene at room temperature greater than 50%; C) from 5 to 45% of a polymer composition comprising a blend of: i) from 20 to 80% of an ethylene copolymer having a Shore A hardness value equal to or lower than 90 points and containing up to 45% of at least one ?-olefin comonomer, provided that, when propylene is present as comonomer, such copolymer i) has a composition which is different from B); ii) from 20 to 80% of a propylene copolymer having a Shore A hardness value equal to or lower than 90 points and containing up to 40% of at least one ?-olefin comonomer; wherein the amounts of A), B) and C) are referred to the total weight of A)+B)+C) and the amounts of i) and ii) are referred to the weight of C).Type: GrantFiled: June 23, 2011Date of Patent: July 15, 2014Assignee: Basell Poliolefine Italia S.r.l.Inventors: Kazuhiko Minowa, Yukihiro Hisanaga, Paolo Goberti, Giampaolo Pellegatti
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Patent number: 8779064Abstract: Provided is a polypropylene resin composition having excellent impact resistance, impact strength at low temperature and transparence comprising ethylene-alpha olefin copolymer (c) to a polypropylene resin composition in which the ratio of viscosity is regulated by adjusting molecular weight of propylene-alpha olefin random copolymer (a) and propylene-alpha olefin elastic copolymer (b), thereby regulating impact resistance and flexural modulus of the polypropylene resin composition and improving transparence; therefore, applying as various products including cold-storage containers for freezer and refrigerator, food packaging container, extrusion blow molding material, film, sheet and bottle cap, etc.Type: GrantFiled: December 4, 2009Date of Patent: July 15, 2014Assignee: LG Chem, Ltd.Inventors: Yong-jeon Kim, Jin-woo Lee, Churl-young Park, Nan-young Lee, Ro-my Lee
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Patent number: 8779058Abstract: The present disclosure provides a polymerization process for the production of a high melt flow propylene impact copolymer. The process includes contacting an active propylene-based polymer having a melt flow rate greater than about 100 g/10 min with one or more olefins in a polymerization reactor to form the propylene impact copolymer with a melt flow rate greater than about 60 g/10 min. The production of the high melt flow propylene impact copolymer may occur in one or more polymerization reactors, utilizing standard hydrogen concentration, and no visbreaking.Type: GrantFiled: February 23, 2009Date of Patent: July 15, 2014Inventors: William G. Sheard, Jeffrey D. Goad, Linfeng Chen
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Patent number: 8778471Abstract: A propylene resin composition which contains as essential components thereof (A) an ethylene-propylene random copolymer having an ethylene content of 0.5 to 3.0 parts by mass; (B) an elastomer having an average particle diameter of 10 to 800 nm in an amount of 1 to 10 parts by mass based on 100 parts by mass of the ethylene-propylene random copolymer; and (C) a crystalline nucleating agent, and in which after kneading thereof, the kneaded propylene resin composition exhibit a melt flow rate (MFR) of 0.01 to 1.00 g/10 min. The propylene resin composition is suitable for the production of a wide variety of molded articles.Type: GrantFiled: January 14, 2011Date of Patent: July 15, 2014Assignee: Asahi Organic Chemicals Industry Co., Ltd.Inventors: Hidehiro Kourogi, Chisato Nakazono
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Patent number: 8779062Abstract: Propylene copolymer composition (P) comprising (a) at least 2.5 wt.-% of units derivable from C5 to C12 ?-olefins, (b) at least 20.0 wt-%. of a crystalline fraction having a lamella thickness of more than 5.70 nm, and (c) at least 10.0 wt-%. of a crystalline fraction having a lamella thickness of below than 3.0 nm, said crystalline fractions are determined by the stepwise isothermal segregation technique (SIST).Type: GrantFiled: April 18, 2011Date of Patent: July 15, 2014Assignee: Borealis AGInventors: Juha Paavilainen, Petar Doshev, Kristin Reichelt, Paull Leskinen, Hannu Miettinen
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Publication number: 20140194277Abstract: An object of the present invention is to provide a polyethylene-based resin composition excellent in the moldability and at the same time, excellent in the balance between impact strength and stiffness as well as in the transparency, and a molded product and a film, which are obtained by the molding of the polyethylene-based resin composition. The polyethylene-based resin composition of the present invention comprises from 41 to 99 wt % of (A) an ethylene-based polymer satisfying specific conditions and from 1 to 59 wt % of (B) an ethylene-based polymer satisfying specific conditions, wherein MFR of the composition as a whole is from 0.05 to 50 g/10 min and the density is from 0.910 to 0.960 g/cm3.Type: ApplicationFiled: March 29, 2012Publication date: July 10, 2014Applicant: JAPAN POLYETHYLENE CORPORATIONInventors: Yoshiyuki Ishihama, Ryousuke Asakawa, Tsutomu Sakuragi, Tetsurou Fukuda, Kazuya Sakata, Masaru Aoki, Kenji Kawagishi, Keiichi Yoshimoto
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Publication number: 20140194577Abstract: Propylene impact copolymers (ICPs) are provided which comprise: (a) a matrix phase which comprises from 60 to 95 weight % of a polypropylene polymer containing from 0 to 6 mole % of units derived from one or more alpha-olefins other than propylene, and (b) a dispersed phase which comprises from 5 to 40 weight % of a copolymer derived from a first comonomer which can be either propylene or ethylene together with a second alpha-olefin comonomer. The ICP is further characterized by having a beta/alpha ratio less than or equal to 1.1. The ICPs of the present invention are particularly well suited for applications requiring clear, tough polymers such as thin walled injection molded articles for frozen food packaging applications.Type: ApplicationFiled: January 9, 2013Publication date: July 10, 2014Applicant: BRASKEM AMERICA, INC.Inventors: Peter S. Dias, Jonathan D. Kersey, Peter S. Martin, Thomas R. Cuthbert
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Patent number: 8772411Abstract: Disclosed is a polyolefin-based adhesive. The adhesive comprises a maleated polyolefin. The maleated polyolefin is let-down in a linear low density polyethylene (LLDPE). The let-down LLDPE is selected from those which have a melt index MI2 within the range of 0.1 dg/min to 5 dg/min, preferably from 1 dg/min to 3 dg/min, and comprises a TREF soluble fraction having an intrinsic viscosity less than 0.9 dl/g. The adhesive composition can be used in multilayer polyolefin films and multilayer pipes.Type: GrantFiled: May 22, 2009Date of Patent: July 8, 2014Assignee: Equistar Chemicals, LPInventors: Chun D. Lee, Charles S. Holland, Maged G. Botros
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Patent number: 8771569Abstract: The present invention pertains to a polyethylene film and a process for manufacturing such film. The polyethylene film may have a ratio between the strength in a first direction in the film plane and the strength in a second direction in the film plane perpendicular to the first direction in the range of 0.1-10:1, the strength in at least one direction being at least 0.2 Gpa. The process for manufacturing a polyethylene film may have a starting UHMWPE polymer with an average molecular weight of at least 500,000 grams/mole, an elastic shear modulus determined directly after melting at 160° C. of at most 1.4 MPa, and a Mw/Mn ratio of at most 6 to a solvent-free compacting process and a stretching process under such conditions that at no point during the process the temperature of the intermediate polymer film is raised to a value above its melting point.Type: GrantFiled: January 6, 2010Date of Patent: July 8, 2014Assignee: Teijin Aramid B.V.Inventors: Joris Eem Van Der, Johannes Bos, Anton Peter De Weijer, Sanjay Rastogi, Gerwin Elderman
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Patent number: 8765872Abstract: [Object] To provide a resin composition with excellent mold releasability and blocking resistance. [Solution] A resin composition containing a 4-methyl-1-pentene polymer includes 0.01 to 10 parts by mass of a 4-methyl-1-pentene polymer (B) per 100 parts by mass of at least one resin (A) selected from the group consisting of thermoplastic resins and thermosetting resins, wherein the 4-methyl-1-pentene polymer (B) has (B1) an intrinsic viscosity [?] of 0.01 or more but less than 0.50 dl/g measured at 135° C. in a decalin solvent.Type: GrantFiled: January 10, 2011Date of Patent: July 1, 2014Assignee: Mitsui Chemicals, Inc.Inventors: Kuniaki Kawabe, Masayoshi Sutou, Toshiyuki Itou, Mai Kurihara, Akinori Etoh, Shinichirou Asao, Kenji Sugimura, Hiroshi Hoya, Koji Matsunaga, Yoji Hayakawa, Kunihiko Mizumoto
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Patent number: 8765873Abstract: The invention provides a compression blow formed article formed from a composition comprising at least the following: 1) a polypropylene homopolymer and 2) a propylene-based polymer.Type: GrantFiled: December 29, 2011Date of Patent: July 1, 2014Assignee: Braskem America, Inc.Inventors: Rennan A. Mendoza, Rodolfo Salmang, Roberto Rigobello
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Patent number: 8765874Abstract: Provided are ethylene-based polymer compositions, articles made therefrom, and methods of making the same. Ethylene-based polymer compositions include blends of a linear low density polyethylene prepared with metallocene catalyst and a low density polyethylene. The linear low density polyethylene may optionally have about five mole percent or less of monomer units derived from an alpha-olefin comonomer. Articles composed of such ethylene-based polymer compositions, such as blown films, exhibit favorable physical properties, including excellent optical properties and retained strength i.e., mitigation of expected decline in physical strength due to LDPE addition.Type: GrantFiled: January 28, 2008Date of Patent: July 1, 2014Assignee: ExxonMobil Chemical Patents Inc.Inventors: Alan M. Malakoff, Danny Van Hoyweghen, Hitesh A. Fruitwala
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Publication number: 20140179872Abstract: This invention relates to inventive ethylene-based copolymers comprising 75.0 wt % to 99.5 wt % of ethylene-derived units and 0.5 wt % to 25.0 wt % of C3 to C20 olefin derived units; the inventive ethylene-based copolymer having: a density in the range of from 0.900 to less than 0.940 g/cm3; a g?(vis) of less than 0.80; a melt index, I2, of from 0.25 to 1.5 g/10 min.; a Mw/Mn within a range from 3.0 to 6.0, and Mz/Mn greater than 8.0; and an absence of a local minimum loss angle at a complex modulus, G*, of 1.00×104 to 3.00×104 Pa.Type: ApplicationFiled: November 26, 2013Publication date: June 26, 2014Inventors: David M. Fiscus, Laughlin G. McCullough, John F. Walzer, Jr., Jay L. Reimers
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Publication number: 20140179873Abstract: A polymer blend comprising first and second polyethylene copolymers is presented which has good processability, and which when made into film shows good toughness-stiffness balance, reasonable MD tear, as well as good optical properties.Type: ApplicationFiled: December 16, 2013Publication date: June 26, 2014Applicant: NOVA CHEMICALS (INTERNATIONAL) S.A.Inventors: Patrick Lam, Victoria Ker, Karen Grabow
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Patent number: 8759452Abstract: The present invention is directed to a polypropylene composition comprising a propylene homo- or copolymer (A) with a polydispersity index (PI), determined according ISO 6721-1, of at least 5.8 Pa?1; and an inorganic filler (B) in an amount from 2.0 to 20 parts per weight based on 100 parts per weight of (A)+(B); The present invention is furthermore directed to a polypropylene composition comprising a propylene homo- or copolymer (A); and an inorganic filler (B); whereby the following relation is fulfilled (80F+1700)MPa?T wherein F are the parts per weight of component (B) based on 100 parts per weight of the total amount of (A)+(B). T is the tensile modulus in MPa, determined according to ISO 527-2, of the polypropylene composition measured on a test specimen prepared by injection molding according to ISO 1873-2.Type: GrantFiled: February 4, 2010Date of Patent: June 24, 2014Assignee: Borealis AGInventors: Markus Gahleitner, Bo Malm, Klaus Bernreitner, Juliane Braun
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Patent number: 8759243Abstract: Embodiments of the invention generally include multi-component catalyst systems, polymerization processes and heterophasic copolymers formed by the processes. The multi-component catalyst system generally includes a first catalyst component selected from Ziegler-Natta catalyst systems including a diether internal electron donor and a metallocene catalyst represented by the general formula XCpACpBMAn, wherein X is a structural bridge, CpA and CpB each denote a cyclopentadienyl group or derivatives thereof, each being the same or different and which may be either substituted or unsubstituted, M is a transition metal and A is an alkyl, hydrocarbyl or halogen group and n is an integer between 0 and 4.Type: GrantFiled: July 12, 2011Date of Patent: June 24, 2014Assignee: Fina Technology, Inc.Inventors: Tim Coffy, Michel Daumerie, Kenneth Blackmon, William J. Gauthier, Jun Tian, Joseph L. Thorman
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Patent number: 8759448Abstract: A high density polyethylene moulding composition having a multimodal molecular weight distribution, having a density according to ISO 1183 at 23° C. in the range of 945 to 965 kg/m3 and an MFR190/2 according to ISO 1133 in the range of 0.05 to 25 g/10 min, said polyethylene moulding composition comprising at least three ethylene polymer fractions having distinct molecular weights: A) 15 to 50 wt % of a low molecular weight ethylene homopolymer fraction with a weight average molecular weight Mw in the range of 15 to 40 kg/mol; B) 15 to 50 wt % of a medium molecular weight ethylene homopolymer fraction with a weight average molecular weight Mw in the range of 70 to 180 kg/mol; and C) 15 to 50 wt % of a high molecular weight ethyleve copolymer fraction with a weight average molecular weight Mw in the range of 200 to 400 kg/mol; and wherein the composition has: a tensile modulus according to ISO 527-2: 1993 measured on compression moulded samples of at least 800 MPa; a Charpy impact strength CIS (23° C.Type: GrantFiled: January 27, 2011Date of Patent: June 24, 2014Assignee: Borealis AGInventors: Andrey Buryak, Albrecht Dix, Balakantha Rao Kona
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Patent number: 8759460Abstract: New ethylene polymers having broad molecular weight distribution and long-chain branching, above all at high molecular weight fractions; the polymers have strain hardening equal or higher than 1.4 (at constant elongational rate of 0.5 s?1, at 150° C.), branching index g? equal or lower than 0.9 (at Mw of 2·106 g/mol). The polymers are prepared by using a mixed catalyst system comprising a polymerization catalyst based on a late transition metal component having a tridentate ligand, and a Ziegler polymerization catalyst annealed at a temperature higher than 100° C., for a time of at least 10 minutes.Type: GrantFiled: November 30, 2009Date of Patent: June 24, 2014Assignee: Bassell Polyolefine GmbHInventors: Eleonora Ciaccia, Iakovos Vittorias, Shahram Mihan, Lenka Lukesova, Dieter Lilge, Maclovio Herrera Salinas, Gerhardus Meier, Gerd Mannebach
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Patent number: 8759446Abstract: A composition comprising a blend of a polyolefin, polylactic acid, and a reactive modifier. A method of producing an oriented film comprising reactive extrusion compounding a mixture comprising polypropylene, polylactic acid, a reactive modifier to form a compatibilized polymeric blend, casting the compatibilized polymeric blend into a film, and orienting the film. A method of preparing a reactive modifier comprising contacting a polyolefin, a multifunctional acrylate comonomer, and an initiator under conditions suitable for the formation of an epoxy-functionalized polyolefin wherein the epoxy-functionalized polyolefin has a grafting yield of from 0.2 wt. % to 15 wt. %.Type: GrantFiled: June 30, 2008Date of Patent: June 24, 2014Assignee: Fina Technology, Inc.Inventors: Fengkui Li, Tim J. Coffy, Michel Daumerie
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Publication number: 20140171582Abstract: A dual reactor solution polymerization process gives high density polyethylene compositions containing a first ethylene copolymer and a second ethylene copolymer and which have high dimensional stability, excellent processability as well as good organoleptic properties and reasonable stress cracking resistance. The polyethylene compositions are suitable for compression molding or injection molding applications and are useful, for example, in the manufacture of caps and closures for bottles, and for example, in bottles containing non-pressurized liquids.Type: ApplicationFiled: December 6, 2013Publication date: June 19, 2014Applicant: NOVA CHEMICALS (INTERNATIONAL) S.A.Inventors: XiaoChuan Wang, Yves Lacombe, Douglas Walter Checknita, Mark Rejman, Matthew Zaki Botros, Renee Laurel Anseeuw
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Publication number: 20140162096Abstract: Disclosed herein are formulation components for the manufacturing of a flow frame structure that can be integrated in flowing electrolyte batteries. These formulation components for manufacturing flow frames may include, but are not limited to, polypropylene, glass fiber, a coupling agent and an elastomer. A mixing and extrusion process may be employed to formulate the material and produce pre-formulated pellets for the manufacturing of flow frames. As flow frames may be integrated with electrodes (or membranes), the disclosed flow frame formulation may achieve a desired Melt Flow Index (MFI) range and may allow an improved bonding between electrodes (or membranes) and flow frame, therefore, simplifying manufacturing process and achieving higher performance and longer lifetime of flowing electrolyte batteries.Type: ApplicationFiled: February 18, 2014Publication date: June 12, 2014Applicants: Lotte Chemical Corporation, ZBB Energy CorporationInventors: Peter Lex, Nathan Coad
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Patent number: 8748535Abstract: The present invention relates to a heterophasic polypropylene composition with rather high melt flow rate, high stiffness, acceptable impact properties and an advantageous balance between stiffness and transparency. Still further, the present invention is also directed to a process for producing the inventive polypropylene composition, to an article made of the inventive polypropylene composition and to the use of the inventive polypropylene composition for the production of films and molded articles, such as thin-walled plastic containers for packaging. The inventive heterophasic polypropylene composition comprises at least a propylene homopolymer fraction, a propylene random copolymer fraction, two different ethylene-propylene rubber fractions and an ethylene homo- or copolymer fraction.Type: GrantFiled: December 14, 2010Date of Patent: June 10, 2014Assignee: Borealis AGInventors: Petar Doshev, Rao Kona Balakantha, Pirjo Jaaskelainen, Bo Malm
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Patent number: 8748539Abstract: Propylene impact copolymers (ICPs) are provided which comprise: (a) a matrix phase which comprises from 60 to 95 weight % of a polypropylene polymer containing from 0 to 6 mole % of units derived from one or more alpha-olefins other than propylene, and (b) a dispersed phase which comprises from 5 to 40 weight % of a copolymer derived from a first comonomer which can be either propylene or ethylene together with a second alpha-olefin comonomer. The ICP is further characterized by having a beta/alpha ratio less than or equal to 1.1. The ICPs of the present invention are particularly well suited for applications requiring clear, tough polymers such as thin walled injection molded articles for frozen food packaging applications.Type: GrantFiled: May 24, 2011Date of Patent: June 10, 2014Assignee: Braskem America, Inc.Inventors: Peter S. Martin, Peter S. Dias, Jason C. Brodil, Li-Min Tau, Debra R. Wilson, Jeffrey D. Goad, Matthew J. Fedec
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Publication number: 20140155554Abstract: 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: ApplicationFiled: July 6, 2012Publication date: June 5, 2014Applicant: Basell Poliolefine Italia S.r.l.Inventors: Paola Massari, Marco Ciarafoni, Tiziana Caputo
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Publication number: 20140155547Abstract: Unoriented film comprising at least 70 wt.-% of an heterophasic propylene copolymer, said heterophasic propylene copolymer comprises a matrix being a random propylene copolymer and an elastomeric propylene copolymer dispersed in said matrix, wherein the heterophasic propylene copolymer has (a) a melt flow rate MFR2 (230° C.) in the range of 3.0 to 10.0 g/10 min, (b) a melting temperature in the range of 130 to 150° C., (c) a xylene cold soluble content in the range of 25 to 50 wt.-%, (d) comonomer content in the range of 10.0 to 15.0 wt.-%, wherein further the xylene cold soluble content of the heterophasic propylene copolymer has (e) a comonomer content in the range of 20 to 30 wt.-% and (f) an intrinsic viscosity in the range of 0.8 to below 2.0 dl/g.Type: ApplicationFiled: July 10, 2012Publication date: June 5, 2014Applicant: Borealis AGInventors: Markus Gahleitner, Martina Sandholzer, Klaus Bernreitner, Pauli Leskinen
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Publication number: 20140155553Abstract: The present invention relates to polyethylene compositions comprising one or more ethylene polymers and one or more HDPE modifiers, in particular, this invention further relates to polyethylene blends comprising one or more ethylene polymers and one or more HDPE modifiers, wherein the modifier has: 1) a density of greater than 0.94 g/cc; 2) a Mw/Mn greater than 5; 3) a melt index (ASTM 1238, 190° C., 2.16 kg) of less than 0.7 dg/min; and 4) a g?vis of 0.96 or less.Type: ApplicationFiled: November 21, 2013Publication date: June 5, 2014Inventors: Pradeep P. Shirodkar, Jianya Cheng, Rahul R. Kulkarni
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Patent number: 8742019Abstract: Crosslinked polyolefin blends, methods for their production, and articles made of the same are provided. In at least one specific embodiment, the polyolefin blends comprise a first polymer formed in a first reactor and a second polymer formed in a second reactor. The first and second polymers, as well as the resulting blend, may comprise units derived from propylene, ethylene, and a diene. The blended composition can then be compounded with one or more coagents, antioxidants, and/or other additives and crosslinked, preferably by exposure to energetic photons. The crosslinked polymers are particularly useful for making fibers, films, and nonwovens.Type: GrantFiled: September 24, 2010Date of Patent: June 3, 2014Assignee: ExxonMobil Chemical Patents Inc.Inventors: Sunny Jacob, Alistair D. Westwood, Justin R. Huber
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Patent number: 8742020Abstract: The instant invention is an impact modifier composition and method of producing the same. The impact modifier composition comprises (a) less than 30 percent by weight of high-density polyethylene, based on the weight of the impact modifier composition; and (b) at least 70 percent by weight of chlorinated polyethylene, based on the weight of the impact modifier composition.Type: GrantFiled: September 5, 2012Date of Patent: June 3, 2014Assignee: Dow Global Technologies LLCInventors: Charles M. Vanek, Mark T. Berard, Edward M. Bridge
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Patent number: 8741973Abstract: The invention relates to elastic expanded polymer foams and also a process for producing expanded polymer foams by sintering a mixture comprising foam particles P1 and P2 composed of different thermoplastic polymers or polymer blends, wherein the foam particles P1 are obtained by prefoaming expandable, thermoplastic polymer particles comprising A) from 45 to 97.9 percent by weight of a styrene polymer, B1) from 1 to 45 percent by weight of a polyolefin having a melting point in the range from 105 to 140° C., B2) from 0 to 25 percent by weight of a polyolefin having a melting point below 105° C., C1) from 0.1 to 25 percent by weight of a styrene-butadiene or styrene-isoprene block copolymer, C2) from 0.0 to 10 percent by weight of a styrene-ethylene-butylene block copolymer, D) from 1 to 15 percent by weight of a blowing agent, E) from 0 to 5 percent by weight of a nucleating agent, where the sum of A) to E) is 100% by weight.Type: GrantFiled: March 1, 2010Date of Patent: June 3, 2014Assignee: BASF SEInventors: Carsten Schips, Jens Aβmann, Georg Gräβel, Geert Janssens, Maximillian Hofmann, Holger Ruckdäschel, Jürgen Lambert, Christof Zylla
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Patent number: 8742039Abstract: A method for making a polyolefin composition according to one embodiment includes altering the concentration of the chain transfer agent present in the reactor to control the HMW and LMW fractions of the polyolefin composition.Type: GrantFiled: November 19, 2008Date of Patent: June 3, 2014Assignee: Univation Technologies, LLCInventors: Mark B. Davis, Sun-Chueh Kao, Tae Hoon Kwalk
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Patent number: 8742046Abstract: Provided is a maleimide copolymer which exhibits an excellent hue, an effect of imparting high heat resistance, and excellent kneadability. Specifically provided is a maleimide copolymer which comprises 50 to 60 mass % of a styrene monomer unit, 30 to 50 mass % of a maleimide monomer unit, and 0 to 10 mass % of an unsaturated dicarboxylic anhydride monomer unit, and which has a weight-average molecular weight (Mw) of 90,000 to 130,000 and a residual maleimide monomer content of 300 ppm or lower.Type: GrantFiled: January 15, 2010Date of Patent: June 3, 2014Assignee: Denki Kagaku Kogyo Kabushiki KaishaInventors: Tetsuo Noguchi, Koichi Ozawa
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Patent number: 8735498Abstract: Soft polyolefin composition with improved processability comprising from 8 to 45% by weight of a polypropylene component (A), from 45 to 82% by weight of a polyolefin component (B), and from 5 to 25% by weight of a butene-1 (co)polymer (C) having a flexural modulus of 60 MPa or less.Type: GrantFiled: November 8, 2010Date of Patent: May 27, 2014Assignee: Basell Poliolefine Italia S.r.l.Inventors: Giampaolo Pellegatti, Paolo Goberti, Johan De Clippeleir, Stefano Spataro
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Patent number: 8735497Abstract: A propylene composition comprising (percent by weight): A) 60%-95%, of a crystalline propylene copolymer containing from 2.0% to 10.0% of ethylene derived units having a melting point ranging from 148° C. to 160° C.; wherein the melting temperature Tm is measured by DSC on the as-reactor polymer; B) 40%-5%, of a copolymer of ethylene containing from 70% to 85%, of ethylene derived units intrinsic viscosity ranging from 0.8 to 3 dl/g.Type: GrantFiled: October 4, 2010Date of Patent: May 27, 2014Assignee: Basell Poliolefine Italia S.r.l.Inventors: Claudio Cavalieri, Fiorella Pradella, Monica Galvan
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Patent number: 8735499Abstract: The propylene-based polymer composition includes a specific amount of a propylene-based polymer (A) having a syndiotactic pentad fraction (rrrr fraction) of 85% or more and containing 90 to 100 mol % of a structural unit derived from propylene; a specific amount of a propylene-based copolymer (B) containing 40 to 89 mol % of a structural unit derived from propylene and 11 to 60 mol % of a structural unit derived from an ?-olefin and satisfying a specific equation of intrinsic viscosity [?] and MFR; and specific amount(s) of at least one polymer of an olefin-based thermoplastic elastomer (C), a styrene-based elastomer (D), a propylene/ethylene/?-olefin copolymer (E) and an isotactic propylene-based polymer (F), and optionally an ethylene/vinyl acetate copolymer (G) and/or an ethylene-based polymer (H).Type: GrantFiled: June 28, 2012Date of Patent: May 27, 2014Assignee: Mitsui Chemicals, Inc.Inventors: Naomi Urakawa, Makoto Nakano, Yasuhiro Kitahara, Ryosuke Aburaki, Akihiro Matsuda
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Publication number: 20140141228Abstract: Compositions suitable for film comprise at least one ethylene/?-olefin interpolymer, wherein the ethylene/?-olefin interpolymer may have, for example, a Mw/Mn from about 1.7 to about 3.5, at least one melting point, Tm, in degrees Celsius, and a density, d, in grams/cubic centimeter, wherein the numerical values of Tm and d correspond to the relationship: Tm>?2002.9+4538.5(d)?2422.2(d)2.Type: ApplicationFiled: January 16, 2014Publication date: May 22, 2014Applicant: Dow Global Technologies LLCInventors: David W. Fuchs, Pradeep Jain, Mehmet Demirors, Pak-Meng Cham, Yunwa W. Cheung
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Patent number: 8729188Abstract: A propylene polymer composition comprising (percent by weight): A) 74%-84% of a propylene homopolymer having a Polydispersity Index (P.I.) value of from 4.6 to 10, a fraction insoluble in xylene at 25° C., higher than 90%, and a MFR L (Melt Flow Rate according to ISO 1133, condition L, i.e. 230° C. and 2.16 kg load) from 110 to 200 g/10 min; B) 16%-26%, of a copolymer of propylene with from 39% to 48%, of ethylene derived units; the composition having an intrinsic viscosity of the fraction soluble in xylene at 25° C. comprised between 2.7 and 4.0 dl/g; and a MFR L (Melt Flow Rate according to ISO 1133, condition L, i.e. 230° C. and 2.16 kg load) from 30 to 80 g/10 min.Type: GrantFiled: August 26, 2010Date of Patent: May 20, 2014Assignee: Basell Poliolefine Italia S.r.l.Inventors: Monica Galvan, Marco Ciarafoni, Gianni Collina, Ofelia Fusco, Roberto Pantaleoni, Antonio Mazzucco