Solid Polymer Derived From Ethylene Or Propylene Patents (Class 525/240)
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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
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Patent number: 8729156Abstract: The invention provides a composition exhibiting improved impact resistance at low levels of impact modifier. The composition comprises a polyhydroxyalkanoic acid and: (A) an elastomeric compound of core-shell type wherein the amount of (A) is from 0.1 to 6% by mass of the composition; and (B) and an olefinic copolymer comprising an ethylenic monomer bearing an epoxy function; wherein the amount of (B) is from 0.01 to 0.6% by mass of the composition and the mass ratio of (A)/(B) is from 85/15 to 99.5/0.5.Type: GrantFiled: November 6, 2012Date of Patent: May 20, 2014Assignee: Arkema FranceInventors: Sebastien Quinebeche, Zuzanna Donnelly, Mehdi M. Emad
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Patent number: 8728960Abstract: The invention described relates to a polyolefin blend composition suitable for spunbond fiber or filament compositions, and to fabric compositions and composite constructions therefrom, said blend comprising a) from 60-98 wt % of at least one random propylene copolymer having a comonomer content of from 8 to 25 wt % and a crystalline melting point (Tm) as determined by differential scanning calorimetry (DSC) of from about 40° C. to about 110° C.; and b) from 2-40 wt % of at least one substantially isotactic polypropylene homopolymer or copolymer comprising one or more C2 and/or C4-C8 comonomer, having a crystalline melting point (Tm) as determined by DSC greater than or equal to 120° C. The blends of the present invention typically have a melt flow rate (MFR) of from 100 g/10 min to about 500 g/10 min.Type: GrantFiled: January 19, 2007Date of Patent: May 20, 2014Assignee: ExxonMobil Chemical Patents Inc.Inventors: Smita Kacker, Chia Yung Cheng
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Patent number: 8729144Abstract: The present invention relates to a foamed polypropylene composition comprising a propylene homo- and/or copolymer and glass fibres, wherein (i) the composition has a density of 50 to 950 kg/m3, (ii) the tensile modulus tm(extrusion direction) measured according to ISO 527 in extrusion direction and the k-value measured according to ASTM C-518 satisfy the relation: tm(extrusion direction) [MPa]/k [W/mK]?9000 MPa·mK/W, to the use of said composition for the production of an insulating layer and to an article comprising said composition.Type: GrantFiled: November 15, 2006Date of Patent: May 20, 2014Assignee: Borealis Technology OyInventors: Martin Anker, Per-Ola Hagstrand, Manfred Stadlbauer
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Patent number: 8729143Abstract: Expandable, thermoplastic polymer bead material composed of a multiphase polymer mixture which comprises blowing agent and has at least one continuous phase of a thermoplastic polymer, where at least two different disperse phases P1 and P2 are present, disperse in the continuous phase, and also to processes for its production, and to use for the production of elastic molded foams.Type: GrantFiled: December 15, 2009Date of Patent: May 20, 2014Assignee: BASF SEInventors: Carsten Schips, Klaus Hahn, Maximilian Hofmann, Holger Ruckdäschel, Jens Assmann, Geert Janssens, Georg Gräβel, Jurgen Lambert, Christof Zylla
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Patent number: 8728616Abstract: A polymer sheet according to at least one embodiment of the present invention is a polymer sheet whose main component is oriented nanocrystals of a polymer, and which satisfies the following conditions (I), (II), and (III): (I) having a crystallinity of not less than 70%; (II) having a tensile strength at break of not less than 100 MPa and a tensile modulus of not less than 3 GPa; and (III) having an average thickness of not less than 0.15 mm. According to at least one embodiment of the present invention, it is possible to provide a polymer sheet excelling in properties such as mechanical strength, heat tolerance, and transparency, particularly a polymer sheet having excellent properties such as mechanical strength, heat tolerance, and transparency in general-purpose plastics such as polypropylene.Type: GrantFiled: January 21, 2010Date of Patent: May 20, 2014Assignees: Hiroshima University, Sunallomer Ltd.Inventors: Masamichi Hikosaka, Kiyoka Okada, Kaori Watanabe, Junichiro Washiyama, Hideharu Kimura, Koji Yamada, Takeshi Nakajima, Akihiro Otsubo
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Patent number: 8729186Abstract: A high pressure polymerization process to form an ethylene-based polymer comprises the steps of: A. Injecting a first feed comprising ethylene and optionally a chain transfer agent system (CTA system) into a first autoclave reactor zone operating at polymerization conditions to produce a first zone reaction product, the CTA system of the first reactor zone having a transfer activity Z1; and B. (1) Transferring at least part of the first zone reaction product to a second reactor zone selected from a second autoclave reactor zone or a tubular reactor zone and operating at polymerization conditions, and, optionally, (2) freshly injecting a second feed into the second reactor zone to produce a second zone reaction product, with the proviso that the second reactor zone contains a CTA system having a transfer activity Z2; and with the proviso that the ratio of Z1/Z2 is less than 1.Type: GrantFiled: December 14, 2010Date of Patent: May 20, 2014Assignee: Dow Global Technologies LLCInventors: Otto J. Berbee, Cornelis Den Doelder, Egbert Nijhof, Mehmet Demirors, Sjoerd A. De Vries
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Patent number: 8726537Abstract: In a method and equipment for continuous sintering of pelletized mineral material, a partition wall (7, 8) arranged between two adjacent cooling chambers (4, 5; 5, 6) is in the height direction placed at a distance from the pellet bed (2), so that in between the partition wall (7, 8) and pellet bed (2), there is left a gap (s) that allows gas to flow between two adjacent cooling chambers (4, 5; 5; 6) through the gap (s) in order to equalize the pressure between the cooling chambers.Type: GrantFiled: August 3, 2010Date of Patent: May 20, 2014Assignee: Outotec OyjInventor: Marko Palander
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Publication number: 20140134364Abstract: The instant invention provides a polyethylene blend composition suitable for blown film, method of producing the same, and films made therefrom. The polyethylene blend composition suitable for blown film, according to the present invention, comprises the melt blending product of: (a) from 5 percent or less by weight of a first low density polyethylene (first LDPE) having a density in the range of from 0.915 to 0.935 g/cm3, and a melt index (I2) in the range of from greater than 0.8 to less than or equal to 5 g/10 minutes, and a molecular weight distribution (Mw/Mn) in the range of from 6 to 10; (b) from 5 to 50 percent by weight of a second low density polyethylene (second LDPE) having a density in the range of from 0.915 to 0.935 g/cm3, and a melt index (I2) in the range of from 0.Type: ApplicationFiled: July 2, 2012Publication date: May 15, 2014Applicants: DCOMCO, INC., Dow Global Technologies LLC, The Dow Chemical CompanyInventors: Lawrence J. Effler, Nilesh R. Savargaonkar, Teresa P. Karjala, Cristina Serrat, Jian Wang
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Patent number: 8722831Abstract: To provide a novel cross copolymer and resin composition which are improved in heat resistance and compatibility over conventional ethylene/aromatic vinyl compound copolymers and which have low crystallinity, are excellent in softness, transparency and compatibility and show mechanical properties similar to soft vinyl chloride resins, as compared with conventional cross copolymers.Type: GrantFiled: May 29, 2007Date of Patent: May 13, 2014Assignee: Denki Kagaku Kogyo Kabushiki KaishaInventors: Toru Arai, Masaru Hasegawa, Ayumu Tsukamoto, Akira Miyama, Shigeru Suzuki
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Patent number: 8722803Abstract: A polymer composition comprising (per cent by weight): a) 70-84% of a crystalline propylene polymer having an amount of isotactic pentads (mmmm), measured by 13C-MNR on the fraction insoluble in xylene at 25° C., higher than 97.5 molar %; b) 8-15% of an elastomeric copolymer of ethylene and propylene, the copolymer having an amount of recurring units deriving from ethylene ranging from 25 to 50 wt % and being partially soluble in xylene at ambient temperature; the polymer fraction soluble in xylene at ambient temperature having an intrinsic viscosity value ranging from 2.5 to 3.5 dl/g; and c) 8-15% of ethylene homopolymer having an intrinsic viscosity value ranging from 1.5 to 4 dl/g; said composition having a value of melt flow rate ranging from 55 to 90 g/10 min, and the amount of hexane extractables lower than 3.5 wt %.Type: GrantFiled: July 20, 2010Date of Patent: May 13, 2014Assignee: Basell Poliolefine Italia S.r.l.Inventors: Paola Massari, Marco Ciarafoni, Gisella Biondini, Roberto Pantaleoni
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Patent number: 8722804Abstract: Polymer blends and films made therefrom are provided. The polymer blend can include a first polyethylene having a density of less than about 0.940 g/cm3, a melt index (I2) greater than 0.75 g/10 min, and a melt index ratio (I21/I2) of less than 30. The polymer blend can also include a second polyethylene having a density of less than about 0.940 g/cm, a melt index (I2) of less than 1 g/10 min, a melt index ratio (I21/I2) greater than 30, and a molecular weight distribution (Mw/Mn) of less than 4.5.Type: GrantFiled: March 22, 2011Date of Patent: May 13, 2014Assignee: Univation Technologies, LLCInventors: Ching-Tai Lue, Christopher R. Davey
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Patent number: 8722790Abstract: Heat-sealable polyolefin film made of or comprising at least one layer of a polyolefin composition comprising (percent by weight): A) 20% to 80% of a heterophasic polyolefin composition comprising: AI) 3% to 30% by weight of a crystalline olefin polymer fraction; AII) 70% to 97% by weight of an elastomeric fraction comprising at least an elastomeric copolymer of propylene or ethylene with 12 to 88% by weight of at least one ?-olefin of formula H2C?CHR, where R is H or a C2-C10 linear or branched alkyl, optionally containing 0.5 to 5% by weight of a diene, and having solubility in xylene at room temperature greater than 50% by weight; B) 20% to 80% of at least one filler.Type: GrantFiled: November 8, 2005Date of Patent: May 13, 2014Assignee: Basell Pololefine Italia, S.r.l.Inventors: Nicolas Kokel, Stéphanie Lahaye
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Patent number: 8722802Abstract: A novel polyethylene composition is described. The composition is suitable for manufacturing especially stretched bands or tapes, also coined raffia in the art.Type: GrantFiled: June 24, 2010Date of Patent: May 13, 2014Assignee: Basell Polyolefine GmbHInventors: Joachim Berthold, Bernd Lothar Marczinke, Diana Doetsch, Johannes-Gerhard Müller
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Patent number: 8722805Abstract: The present invention relates to a polypropylene composition showing a high melt flow rate and high melt strength while maintaining high impact strength. The composition of the present invention is obtainable by using a low molecular weight linear isotactic polypropylene as melt flow enhancer for a high molecular weight polypropylene having a high melt strength and impact strength. The inventive composition could be used for the production of different articles.Type: GrantFiled: November 29, 2010Date of Patent: May 13, 2014Assignee: Borealis AGInventors: Susana Filipe, Katja Klimke, Anh Tuan Tran, Petar Doshev, Antti Tynys, Martin Obadal, Cornelia Kock, David Friel
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Patent number: 8722807Abstract: The application relates to a polyethylene composition having a base resin, the base resin comprising (A) a first polyethylene fraction, and (B) a second polyethylene fraction, wherein the melt flow rate MFR5/190° c. of the first fraction is higher than the melt flow rate MFR5/190° c. of the second fraction, the flow rate ratio FRR21/5 of the polyethylene composition, defined as the ratio of melt flow rate MFR21-6/190° c. to melt flow rate MFR5/190° c., is within the range of 15-28, and 10 the melt flow rate MFR5/190° c. of the polyethylene composition is within the range of 0.5-1.1 g/10 min.Type: GrantFiled: November 2, 2005Date of Patent: May 13, 2014Assignee: Borealis Technology OyInventors: Mats Bäckman, James McGoldrick, Bo Hovgard, Siegfried Liedauer, David Walton
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Patent number: 8722833Abstract: A multimodal polyethylene composition comprising at least three ethylene polymer fractions having distinct molecular weights or comonomer contents, the at least three ethylene polymer fractions comprising at least one first ethylene polymer fraction having a first molecular weight, at least one second ethylene polymer fraction having a second molecular weight higher than the first molecular weight, and at least one third ethylene polymer fraction having a third molecular weight higher than the first molecular weight, wherein the at least one first ethylene polymer fraction and the at least third ethylene polymer fraction are prepared by the use of a first and, respectively, third catalyst of the single site type.Type: GrantFiled: December 18, 2007Date of Patent: May 13, 2014Assignee: Basell Polyolefine GmbHInventors: Jennifer Kipke, Shahram Mihan, Rainer Karer, Harald Schmitz
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Publication number: 20140128549Abstract: Propylene homo- or copolymer composition comprising an in-situ reactor blend of a Ziegler-Natta catalysed, nucleated polypropylene (znPP) and a metallocene catalysed polypropylene (mcPP), in a weight ratio in the range of 6:94 to 50:50 (wt % znPP:wt % mcPP), preferably in the range of 10:90 to 44:56 (wt % znPP:wt % mcPP), having an excellent balance between optical properties, mechanical properties, thermal properties and processing properties; a process for its production and the use of a mixture of a Ziegler-Natta catalyst system and a metallocene catalyst system.Type: ApplicationFiled: May 21, 2012Publication date: May 8, 2014Inventors: Saeid Kheirandish, Petar Doshev, Pauli Leskinen, Bo Malm
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Patent number: 8715798Abstract: A resin composition includes a polyolefin resin. A viscosity of the resin composition is within a range of not less than 500 Pa·s and not more than 2300 Pa·s under measurement conditions of a measurement temperature of 170° C. and a measurement frequency of 1 Hz. A strain hardening rate of the resin composition in uniaxial elongational viscosity measured under measurement conditions of a measurement temperature of 150° C. and a strain rate of 3.0 s?1 is not less than 800%. A foam insulated wire includes a conductor, and a foam insulation of the resin composition extruded on an outer periphery of thereof. A diameter of the conductor is 3.5 to 18 mm, and an outer diameter of the foam insulation is not less than 8 mm.Type: GrantFiled: December 7, 2011Date of Patent: May 6, 2014Assignee: Hitachi Metals, Ltd.Inventors: Hideyuki Suzuki, Yuju Endo, Sohei Kodama, Masahiro Abe, Akinari Nakayama
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Patent number: 8716405Abstract: The present invention provides a resin composition including (1) at least one selected from the group consisting of ethylene-?,?-unsaturated carboxylic acid copolymers and ionomers thereof, which have a melt flow rate of from 0.5 g/10 min to 6 g/10 min, (2) at least one selected from the group consisting of ethylene-?,?-unsaturated carboxylic acid copolymers and ionomers thereof, which have a melt flow rate of from 10 g/10 min to 30 g/10 min, and (3) at least one selected from the group consisting of propylene homopolymers and copolymers obtained by copolymerization using propylene and one or more ?-olefins excluding propylene, in which a structural unit derived from an ?,?-unsaturated carboxylic acid ester is substantially not contained in the total amount of the ethylene-?,?-unsaturated carboxylic acid copolymers and the ionomers thereof.Type: GrantFiled: May 27, 2011Date of Patent: May 6, 2014Assignee: Du Pont-Mitsui Polychemicals Co. Ltd.Inventors: Shigenori Nakano, Kaoru Suzuki
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Patent number: 8710148Abstract: Propylene-based polymer compositions are provided comprising propylene and from about 5 wt % to about 20 wt % of one or more C2 and/or C4-C12 ?-olefins. The polymer compositions have a triad tacticity greater than about 90%, a heat of fusion less than about 75 J/g, and a melt flow rate (MFR) greater than or equal to about 25 g/10 min (230° C., 2.16 kg). Further, the polymer compositions are reactor grade compositions comprising a reactor blend of a first polymer and a second polymer, preferably where both of the first and second polymers are prepared using the same catalyst system. Meltspun nonwoven fabrics, such as meltblown or spunbond fabrics, comprising such polymer compositions are also provided, as well as processes for forming the nonwoven fabrics.Type: GrantFiled: December 2, 2011Date of Patent: April 29, 2014Assignee: ExxonMobil Chemical Patents Inc.Inventors: Galen C. Richeson, Rainer Kolb, Jean-Roch Schauder, Thomas T. Sun
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Patent number: 8709564Abstract: A polyolefin composition comprising (percent by weight): A) from 7% to 19%; of a copolymer of propylene and 1-hexene wherein said copolymer contains less than 1% of recurring units derived from hexene-1; B) from 81% to 93% of a heterophasic polypropylene composition comprising: B1) from 86% to 95% of a propylene homopolymer, said propylene polymer being insoluble in xylene at room temperature in an amount over 85% having a polydispersity Index ranging from 3 to 10; and a Melt Index from 0.5 to 10 dg/min; B2) from 5% to 14% of a copolymer of ethylene and propylene having an ethylene derived units content ranging from 50% to 65%; said polymeric composition having a Melt Index from 0.05 to 10 dg/min.Type: GrantFiled: June 8, 2011Date of Patent: April 29, 2014Assignee: Basell Poliolefine Italia S.r.l.Inventors: Claudio Cavalieri, Monica Galvan, Francesca Tisi
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Patent number: 8709591Abstract: A resin composition includes a biodegradable resin (A), a polyolefin resin (B) and a dispersing agent (C), which has a sea-isle structure in which the biodegradable resin (A) is dispersed as isles in the polyolefin resin (B) existing as a sea component wherein the average dispersed particle size of the biodegradable resin (A) is 1 nm to 1000 nm.Type: GrantFiled: December 27, 2007Date of Patent: April 29, 2014Assignee: Toray Industries, Inc.Inventors: Saori Sumi, Kazuyoshi Nishikawa, Masahiro Kimura, Sadanori Kumazawa
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Publication number: 20140113090Abstract: The instant invention provides a polyethylene blend composition suitable for blown film, method of producing the same, and films made therefrom. The polyethylene blend composition suitable for blown film according to the present invention comprises the melt blending product of: (a) less than or equal to 4 percent by weight of a low density polyethylene (LDPE) having a density in the range of from 0.915 to 0.935 g/cm3, and a melt index (I2) in the range of from greater than 0.8 to less than or equal to 5 g/10 minutes, and a molecular weight distribution (Mw/Mn) in the range of from 6 to 10; (b) 90 percent or greater by weight of a heterogenous linear low density polyethylene (hLLDPE) having a density in the range of from 0.917 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; and (e) optionally one or more antioxidants.Type: ApplicationFiled: July 2, 2012Publication date: April 24, 2014Applicant: Dow Global Technologies LLCInventors: Lawrence J. Effler, JR., Nilesh R. Savargaonkar, Mehmet Demirors, Selim Bensason, Teresa P. Karjala, Gregory Bunker, Christina Serrat, Jian Wang
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Patent number: 8703871Abstract: There is provided a polyolefin resin composition capable of affording molded articles being superior in tensile elongation at break and impact resistance. The composition includes not less than 1 wt % and less than 80 wt % of a propylene polymer (I) that is a propylene homopolymer or a copolymer of propylene and at least one comonomer, the copolymer having more than 0 wt % and less than 20 wt % of structural units derived from the at least one comonomer, not less than 1 wt % and less than 80 wt % of a propylene copolymer (II) having 20 to 80 wt % of structural units derived from the comonomer and/or an ethylene copolymer (III) having a density of less than 940 kg/m3, and more than 20 wt % and not more than 98 wt % of an ethylene polymer (IV) having an MFR of 12 to 100 g/10 minutes and a density of 940 to 970 kg/m3.Type: GrantFiled: April 26, 2013Date of Patent: April 22, 2014Assignee: Sumitomo Chemical Company, LimitedInventor: Kenji Ikeda
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Patent number: 8703262Abstract: A polyolefin composition for pipes comprising (percent by weight): A) from 1% to 9.5%; of a copolymer of propylene and hexene-1 wherein said copolymer comprises from 0.1 to 5% of recurring units derived from hexene-1; B) from 80.5% to 99% of a heterophasic polypropylene composition comprising: B1) from 50% to 85% of a propylene homopolymer, said propylene polymer being insoluble in xylene at ambient temperature in an amount over 85% having a polydispersity Index ranging from 3 to 10; and a Melt Index from 0.5 to 10 dg/min; B2) from 5% to 50% of a copolymer of ethylene and propylene having an ethylene derived units content ranging from 30% to 70%; said polymeric composition having a Melt Index from 0.05 to 10 dg/min.Type: GrantFiled: June 8, 2011Date of Patent: April 22, 2014Assignee: Basell Poliolefine Italia S.r.l.Inventors: Claudio Cavalieri, Monica Galvan, Francesca Tisi
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Publication number: 20140107274Abstract: The present disclosure relates to a class of impact copolymer polypropylene (ICP) compositions exhibiting the advantageous combination of excellent tiger (flow) marking performance in large/long molded parts, very low gels count and exceptional mold flowability (high MFR) despite the high viscosity ratio (e.g., >4) between rubber and propylene based matrix phases. Furthermore, it has been surprisingly found that the inventive compositions are associated with a low gels count even when using a quite coarse mesh wire screen, e.g., 60 mesh wire screen, independent of screw type e.g., twin or single screw. Finally, the inventive compositions exhibit significantly reduced the levels of volatiles, and excellent stiffness-impact balance used as standalone materials or in filled compounds. The significantly reduced number of large gels leads to excellent surface appearance and paintability of the molded parts. The composition of the present disclosure is made with a bulk/gas reactor process (i.e.Type: ApplicationFiled: December 23, 2013Publication date: April 17, 2014Applicant: Braskem America, Inc.Inventors: Jeffrey S. Salek, Rita A. Majewski
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Publication number: 20140106152Abstract: The present disclosure relates to a post consumer recycled polymer composition comprising: 80% to 95% (w/w) of a post consumer recycled resin; and 5% to 20% (w/w) of at least one additive. The present disclosure further relates to a laminate comprising: an outer layer of a post consumer recycled polymer composition; a middle layer of post consumer recycled polymer composition; and an inner layer of virgin resins. The present disclosure also relates to a process for manufacturing tubes comprising: extrusion of post consumer recycled polymer composition comprising 80% to 95% (w/w) of an post consumer recycled resin; and 5% to 20% (w/w) of at least one additive, through a circular slit to form a long cylindrical hollow pipe; slicing the long cylindrical hollow pipe to form tube sleeves; forming tube shoulder and neck; and attaching the tube shoulder and the neck to the tube sleeves to obtain a tube.Type: ApplicationFiled: June 1, 2012Publication date: April 17, 2014Applicant: ESSEL PROPACK LTD.Inventors: Chandrashekhar Ramchandra Abhyankar, Mrinal Kanti Banerjee
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Patent number: 8697808Abstract: A high-temperature solution process for making an ethylene polymer blend having a controlled degree of long-chain branching is disclosed. Ethylene is polymerized in the presence of a first Ziegler-Natta catalyst comprising titanium, magnesium, and aluminum in the absence of hydrogen to produce a first ethylene polymer component having substantial long-chain branching. A second ethylene polymer component having little or no long-chain branching is also prepared. Both polymerizations are performed at a temperature from 140° C. to 250° C. The first and second ethylene polymer components are combined to give a polymer blend. The degree of long-chain branching in the blend is controlled by adjusting the relative amounts of the first and second ethylene polymer components. The invention enables the preparation of valuable products having a pre-determined degree of long-chain branching using readily available Zeigler-Natta catalysts, commercially practiced techniques, and conventional equipment.Type: GrantFiled: November 8, 2010Date of Patent: April 15, 2014Assignee: Equistar Chemicals, LPInventors: Michael W. Lynch, Kenneth J. Klug
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Patent number: 8697807Abstract: An ethylenic polymer comprising amyl groups from about 0.1 to about 2.0 units per 1000 carbon atoms as determined by Nuclear Magnetic Resonance and both a peak melting temperature, Tm, in ° C., and a heat of fusion, Hf, in J/g, as determined by DSC Crystallinity, where the numerical values of Tm and Hf correspond to the relationship Tm?(0.2143*Hf)+79.643. An ethylenic polymer comprising at least one preparative TREF fraction that elutes at 95° C. or greater using a Preparative Temperature Rising Elution Fractionation method, where at least one preparative TREF fraction that elutes at 95° C. or greater has a gpcBR value greater than 0.05 and less than 5 as determined by gpcBR Branching Index by 3D-GPC, and where at least 5% of the ethylenic polymer elutes at a temperature of 95° C. or greater based upon the total weight of the ethylenic polymer.Type: GrantFiled: September 23, 2013Date of Patent: April 15, 2014Assignee: Dow Global Technologies LLCInventors: Mehmet Demirors, Teresa P. Karjala, Christopher R. Eddy, Lonnie G. Hazlitt, Pak-Meng Cham, Sarat Munjal, Wallace W. Yau
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Patent number: 8697806Abstract: The instant invention is a high-density polyethylene composition, method of producing the same, articles made therefrom, and method of making such articles. The high-density polyethylene composition of the instant invention includes a first component, and a second component. The first component is a high molecular weight ethylene alpha-olefin copolymer having a density in the range of 0.915 to 0.940 g/cm3, and a melt index (I21.6) in the range of 0.5 to 10 g/10 minutes. The second component is a low molecular weight ethylene polymer having a density in the range of 0.965 to 0.980 g/cm3, and a melt index (I2) in the range of 50 to 1500 g/10 minutes. The high-density polyethylene composition has a melt index (I2) of at least 1, a density in the range of 0.950 to 0.960 g/cm3, and g? of 1.Type: GrantFiled: April 22, 2013Date of Patent: April 15, 2014Assignee: Dow Global TechnologiesInventors: William J. Michie, Jr., Thomas W. Kay, Stephanie M. Whited, Dale M. Elley-Bristow, David T. Gillespie, Lonnie G. Hazlitt
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Patent number: 8697805Abstract: The present invention relates to a resin composition for moisture absorbing film comprising polyethylene resin and polyacrylic acid partial sodium salt (PAPSS) or attapulgite synthesized acrylic amide (ATPGAA) as a moisture absorbent, moisture absorbing film for packaging, and a method for manufacturing film, and the present invention also relates to a resin composition for seasoned laver packaging film to be used for maintaining the high quality of the merchandize with good taste and tissue dryness.Type: GrantFiled: February 14, 2013Date of Patent: April 15, 2014Assignees: Yonsei University Wonju Industry-Academic Cooperation Foundation, Bosspack Co., Ltd.Inventors: Youn Suk Lee, Soung Gon Lee, Hong Yeol Choi
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Publication number: 20140100336Abstract: A reactor blend polyethylene composition comprising: from 35 to 70 percent by weight of a first polyethylene component; and a second polyethylene component; wherein the polyethylene resin has a melt index I2 of less than 1 dg/min and greater than or equal to 0.25 dg/min and exhibits a V0.1/V100 of greater than or equal to 9; and wherein the first and second polyethylene components are produced in continuous dual solution polymerization reactors, wherein the second polyethylene component is produced in the presence of the first polyethylene component and wherein a Ziegler-Natta catalyst is present in each of the first and second polymerization reactors is provided. Also provided are methods for producing the polyethylene resin and films made therefrom.Type: ApplicationFiled: June 8, 2012Publication date: April 10, 2014Applicant: DOW GLOBAL TECHNOLOGIES LLCInventors: Lawrence J. Effler, JR., Cornelis F.J. Den Doelder, nl Demirors, Jian Wang
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Publication number: 20140099492Abstract: A polymeric sheet having low density and comprising a low to non-existent amount of cyclic olefinic polymers (COP) and/or cyclic olefinic copolymers (COC). The overall density of the sheet may be lower than water. The sheet may be stretched and then heat shrinked onto an article. The sheet may be used as a label or package to wrap articles therewith.Type: ApplicationFiled: August 22, 2013Publication date: April 10, 2014Applicant: Polysack Plastic Industries Ltd.Inventors: Maor Segal, Yoav Guthman, Aharon Ben-Soussane, Yiftach Nir
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Publication number: 20140100337Abstract: Methods for preparing an impact copolymer by selecting a continuous phase polymer having a first melt flow rate and selecting a rubber phase polymeric material such that the final melt flow rate of the impact copolymer is within 2 g/10 min of the first melt flow rate. Impact copolymers made from such methods and films and molded articles produced from such impact copolymers are also included.Type: ApplicationFiled: December 12, 2013Publication date: April 10, 2014Applicant: FINA TECHNOLOGY, INC.Inventor: Mark Leland
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Patent number: 8691354Abstract: This invention is related to the preparation of polyethylene pipe resins suitable for transporting hot and cold water containing chlorine dioxide.Type: GrantFiled: April 26, 2013Date of Patent: April 8, 2014Assignee: Total Research & Technology FeluyInventors: Pierre Belloir, Christine Bertrand
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Patent number: 8691917Abstract: Compositions comprising ionomers and imidized acrylic resins are disclosed. Articles prepared from the compositions exhibit improved heat resistance properties such as increased Vicat temperature, increased stiffness/modulus at room temperature and elevated temperatures below the ionomer's melting point, and increased upper use temperature at a given stiffness over those of ionomers alone.Type: GrantFiled: October 8, 2010Date of Patent: April 8, 2014Assignee: E I du Pont de Nemours and CompanyInventor: Xiyun Serene Fan
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Patent number: 8691916Abstract: A composition of matter particularly well suited for use as a peelable seal layer is described. The composition comprises from about 50 to about 85 percent by weight of a first polymer and from 15 to 50 percent of a second polymer. The first polymer is a propylene based polymer characterized by having a melting point of at least 125° C. together with a Comonomer Composition Distribution Breadth (“CCDB”) less than 2. The second polymer is characterized by having an interfacial adhesion with the first polymer of less than 1 lb/inch.Type: GrantFiled: May 7, 2012Date of Patent: April 8, 2014Assignee: Dow Global Technologies LLCInventors: Xiaosong Wu, Kim L. Walton, Lamy J. Chopin, III, Morgan M. Hughes
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Patent number: 8686093Abstract: Heterophasic polypropylene resin having a MFR (2.16 kg, 230° C.) of at least 1.0 g/10 min, determined according to ISO 1133, comprising a propylene random copolymer matrix phase (A), and an ethylene-propylene copolymer rubber phase (B) dispersed within the matrix phase, wherein the heterophasic polypropylene resin has a fraction soluble in p-xylene at 25° C. (XCS fraction) being present in the resin in an amount of 15 to 45 wt % whereby the XCS fraction has an ethylene content of 25 wt % or lower, and a fraction insoluble in p-xylene at 25° C. (XCU fraction), said heterophasic polypropylene resin being characterized by a strain hardening factor (SHF) of 1.7 to 4.0 when measured at a strain rate of 3.0 s?1 and a Hencky strain of 3.0.Type: GrantFiled: October 28, 2010Date of Patent: April 1, 2014Assignee: Borealis AGInventors: Katja Klimke, Petar Doshev, Susana Filipe, Anh Tuan Tran
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Publication number: 20140088213Abstract: This invention relates to blends of polyalphaolefins (PAOs) and polyhydrosilane-modified polyolefins, methods to prepare the blends and methods to prepare polyhydrosilane-modified polyolefins.Type: ApplicationFiled: September 19, 2013Publication date: March 27, 2014Inventors: Rahul R. Kulkarni, Pradeep P. Shirodkar, Jianya Cheng, Donna J. Crowther
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Publication number: 20140087186Abstract: Flexible polyolefin compositions with improved balance of properties particularly for applications where softness and ductility at low temperature is requested comprising: A) from 20 to 40% by weight of a crystalline polymer fraction consisting of a propylene homopolymer, or a copolymer of propylene, or mixtures thereof, said crystalline fraction having a xylene insoluble fraction at 25° C. of at least 90% by weight. B) from 60 to 80% by weight of an elastomeric fraction consisting of a copolymer or blend of copolymers of propylene with one or more alpha-olefins, and optionally with minor quantities of a diene; said copolymer or blend containing ethylene in a quantity lower than 40% by weight. the fraction soluble in xylene at 25° C. of said polyolefin composition having IVgpc lower than 2.5 dl/g, Mw/Mn (GPC) equal to or higher than 4, Mz/Mw (GPC) equal to or higher than 2.Type: ApplicationFiled: May 9, 2012Publication date: March 27, 2014Applicant: Basell Poliolefine Italia S.r.l.Inventors: Paolo Goberti, Giampaolo Pellegatti, Luca Lunghi
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Patent number: 8679603Abstract: An article that is made of a film a film having a narrow angle scattering (NAS) of greater than 40, a drop dart impact of greater than 100 grams, and a blocking of less than 40 g/16 in2. In particular, the film in made of a blend of: (a) a LDPE, (b) a LLDPE produced with a single-site catalyst; and (c) one or more anti-block additives.Type: GrantFiled: December 21, 2012Date of Patent: March 25, 2014Assignee: Equistar Chemicals, LPInventors: Harilaos Mavridis, Thomas J. Schwab
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Patent number: 8680207Abstract: Heterophasic polypropylene resin comprising a propylene random copolymer matrix phase (A), and an ethylene-propylene copolymer rubber phase (B) dispersed within the matrix phase wherein the heterophasic polypropylene resin has a MFR (2.16 kg, 230° C.) of 1.0 to 100 g/10 min, determined according to ISO 1133, and a fraction soluble in p-xylene at 25° C. (XCS fraction) which is present in the resin in an amount of 28 to 50 wt %, and which has a molecular weight distribution (Mw/Mn) of 1.0 to 4.0.Type: GrantFiled: October 21, 2010Date of Patent: March 25, 2014Assignee: Borealis AGInventors: Katja Klimke, Petar Doshev
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Patent number: 8680197Abstract: The invention relates to the use in a photovoltaic module of a film of a composition as a backsheet or as an encapsulant, this composition comprising, with respect to the total weight of the composition: from 1 to 99% of a polyethylene having an ethylene whose level by weight is greater than or equal to 80% chosen from the homopolymers of ethylene and the copolymers of ethylene and another alpha-olefin; from 99 to 1% of a polyolefin B, other than A, carrying a reactive functional group X chosen from the anhydride carboxylic acids and epoxides. The invention also relates to, the composition additionally comprises a polyolefin C, other than B, which carries a functional group Y capable of reacting with the functional group X. The invention further relates to a photovoltaic module comprising the film which is used of the composition and also a process for the manufacture of this module.Type: GrantFiled: December 14, 2009Date of Patent: March 25, 2014Assignee: Arkema FranceInventors: Luke A. Strzegowski, Ryan T. Tucker
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Publication number: 20140079919Abstract: A hot melt adhesive material and articles made using the hot melt adhesive to assemble structures in an article. The adhesive material typically is manufactured by blending amorphous polymer with a heterophase polymer having crystallinity into an adhesive composition.Type: ApplicationFiled: March 15, 2013Publication date: March 20, 2014Applicant: IFS Industries Inc.Inventor: William L. Bunnelle
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Patent number: 8674026Abstract: Disclosed are an ethylene polymerization process, a catalyst for use in the process, a production method employing the catalyst, and a product produced thereby. More specifically, disclosed is a process of producing an ethylene copolymer from ethylene and an alpha-olefin comonomer, in which the produced ethylene copolymer has a multimodal molecular weight distribution and excellent processability and physical properties, and thus can increase the value and productivity of products, including pipes and films. Particularly, the produced ethylene copolymer has a trimodal or higher molecular weight distribution or density distribution, and thus, when it is a linear low-density copolymer, it has an excellent effect of improving the impact strength of films, and when it is a medium-density ethylene copolymer, it can be produced into pipes, which have slow crack growth rate and can be used even at high temperature.Type: GrantFiled: December 7, 2011Date of Patent: March 18, 2014Assignee: SK Innovation Co., Ltd.Inventors: Choon Sik Shim, Hyeong Taek Ham, Sung Seok Chae, Dae Ho Shin, Seung Bum Kwon, Jong Sok Hahn, Myung Ahn Ok
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Patent number: 8674024Abstract: A polyethylene moulding composition having a multimodal molecular weight distribution, having a density according to ISO 1183 at 23° C. in the range of 920 to 960 kg/m3 and an MFR190/2 according to ISO 1133 in the range of 0.Type: GrantFiled: January 27, 2011Date of Patent: March 18, 2014Assignee: Borealis AGInventors: Andrey Buryak, Albrecht Dix, Magnus Palmlof, Anneli Pakkanen, Christian Piel, Ayodele Olutayo Fiola, Tore Dreng, Janne Maaranen, Alexander Krajete, Susana Filipe
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Patent number: 8674027Abstract: The present invention relates to a thermoplastic polyolefin elastomer composition in powder form comprising (i) an olefin block copolymer or (ii) a substantially linear ethylene polymer and/or a linear ethylene polymer and propylene polymer blend. Said composition demonstrates good pulverizing and flow characteristics at ambient temperature. In another aspect, this invention relates to a process for preparing said thermoplastic polyolefin elastomer powder and applications for using said powder. In a further aspect, this invention relates to slush molding said thermoplastic polyolefin elastomer composition into skins, particularly skins for automotive interior applications such as instrument panels.Type: GrantFiled: September 10, 2010Date of Patent: March 18, 2014Assignee: Dow Global Technologies LLCInventor: Franciscus J. T. Krabbenborg
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Patent number: 8674022Abstract: The present invention relates to a thermoplastic polyolefin elastomer composition in powder form comprising (i) an olefin block copolymer or (ii) a substantially linear ethylene polymer and/or a linear ethylene polymer and propylene polymer blend. Said composition demonstrates good pulverizing and flow characteristics at ambient temperature. In another aspect, this invention relates to a process for preparing said thermoplastic polyolefin elastomer powder and applications for using said powder. In a further aspect, this invention relates to paper transfer molding said thermoplastic polyolefin elastomer composition into artificial leather, particularly for skins for automotive interior applications such as instrument panels.Type: GrantFiled: September 10, 2010Date of Patent: March 18, 2014Assignee: Dow Global Technologies LLCInventor: Franciscus J. T. Krabbenborg