Patents Assigned to Union Carbide Chemicals & Plastics Technology LLC
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Patent number: 8067510Abstract: 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: November 29, 2011Assignee: Union Carbide Chemicals & Plastics Technology LLCInventors: William G. Sheard, Jeffrey D. Goad, Linfeng Chen
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Publication number: 20110251361Abstract: A process for making a Ziegler-Natta-type catalyst precursor including contacting a Group 4 metal compound with one or more Titanium compounds selected from the group of TiCl3 (Al-activated or hydrogen-reduced), and Ti(OR)4 where R is ethyl, isopropyl or butyl in the presence of an alcohol solution having at least one C2-C4 alcohol and at least one of MgCl2 and magnesium compounds which form MgCl2 in the presence of the alcohol solution to form a catalyst precursor solution is provided. Also provided are catalysts made from the precursors produced by the process. Also provided are polymers made using the catalysts.Type: ApplicationFiled: April 13, 2010Publication date: October 13, 2011Applicant: Union Carbide Chemicals & Plastics Technology LLCInventors: Robert J. Jorgensen, Burkhard E. Wagner
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Patent number: 7989549Abstract: A polymer composition comprises a low-molecular-weight (LMW) ethylene polymer component and a high-molecular-weight (HMW) ethylene polymer component. Preferably, the LMW polyethylene component and the HMW polyethylene component co-crystallize in the composition such that it exhibits a single or substantially single peak in a lamella thickness distribution (“LTD”) curve. The ethylene polymer for the LMW and the HMW polyethylene components can be either homopolyethylene or ethylene copolymer. Preferably, both components are an ethylene copolymer of the same or different composition (i.e., with the same or different comonomers). A method of making a pipe that includes selecting a polymer composition having a substantially single peak in the LTD curve is described.Type: GrantFiled: August 12, 2005Date of Patent: August 2, 2011Assignee: Union Carbide Chemicals & Plastics Technology LLCInventors: Zhiqiang Jimmy Zhou, William J. Michie, Jr.
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Publication number: 20110152467Abstract: Oligoamines, such as a compound of the formula H2N(CH2CH2NH)nH in which n is an integer of 2-10, crosslink polymers containing carboxyl functionality unexpectedly faster than conventional diamines such as 1,6-diaminohexane. The combination of an ethylene-acrylic acid copolymer with an oligoamine of this type is useful for, among other things, the production of crosslinked wire and cable insulation.Type: ApplicationFiled: August 5, 2009Publication date: June 23, 2011Applicant: UNION CARBIDE CHEMICALS & PLASTICS TECHNOLOGY LLCInventors: Bharat I. Chaudhary, Eric P. Wasserman
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Patent number: 7964663Abstract: Halogen-free, flame-retardant, crack-resistant, cable coatings are prepared from a composition comprising: A) 3 to 10 percent by weight of a low-melting temperature and medium to high grafted level maleic anhydride grafted polyethylene using a VLDPE base resin having density ranging from 0.86 to 0.91 g/cm3 and made with a single-site catalyst; B) 15 to 25% by weight of at least one EEA or EVA; C) 5 to 20% by weight of an ?-olefin polymer; and D) 40 to 65% by weight of a flame retardant inorganic filler.Type: GrantFiled: September 15, 2009Date of Patent: June 21, 2011Assignee: Union Carbide Chemicals & Plastics Technology LLCInventors: Yimsan Gau, Manuel F. Alsina, Paul D. Whaley, Shana P. Bunker
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Publication number: 20110130271Abstract: Methods of preparing a polymerization catalyst component is provided, in which a magnesium component, a Lewis acid solubilizing component, a titanium compound, optionally a transition metal compound different than the titanium compound, and typically an inert filler are combined in a slurrying agent and spray-dried to produce a catalyst precursor in the form of a substantially spherical and porous solid particle. The methods and catalysts of this disclosure can provide ethylene homopolymer and copolymer resins having a high molecular weight tail and a broadened molecular weight distribution as compared to more traditional Ziegler-Natta catalysts.Type: ApplicationFiled: August 6, 2009Publication date: June 2, 2011Applicant: Union Carbide Chemicals & Plastics Technology LLCInventors: Burkhard E. Wagner, Robert C. Job, Ann M. Schoeb-Wolters, Robert J. Jorgensen
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Patent number: 7951859Abstract: Compositions including a polymer, a primary antioxidant, a secondary antioxidant, and a metal deactivator selected from at least one of 2,2?-oxamido bis[ethyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate] and oxalyl bis(benzylidenehydrazide), are disclosed. The compositions can also include a light stabilizer. The compositions can be used to manufacture insulations for wire and cable. The compositions have improved long-term heat aging and also retain their color when exposed to heat. A method of making an insulation for a conductor, such as a wire or a cable, made from a composition is also provided.Type: GrantFiled: July 22, 2010Date of Patent: May 31, 2011Assignee: Union Carbide Chemicals & Plastics Technology LLCInventors: Thomas S. Lin, Jeffrey M. Cogen
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Publication number: 20110112250Abstract: The present invention is a moisture crosslinkable composition. It may be (i) a blend of a nonpolar polyolefin and a second highly polar or amorphous polyolefin or (ii) a copolymer of a nonpolar polyolefin and the second polar or amorphous polyolefin. The present invention is useful for the preparation of moisture-cured wires, cables, film, pipe, hot melt adhesives, and other extruded or injection molded articles. The present invention is also useful in the preparation of media for fast transport of selective species, including film membranes.Type: ApplicationFiled: June 29, 2009Publication date: May 12, 2011Applicant: Union Carbide Chemicals & Plastics Technology LLCInventors: Mohamed Esseghir, Jeffrey M. Cogen, Robert F. Eaton, Michael B. Biscoglio, Salvatore F. Shurott
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Publication number: 20110064685Abstract: Described are personal care compositions, comprising an aqueous dispersion comprising a metallocene catalyzed polyolefin and an ethylene acrylic acid copolymer; a cationic polymer; and a least one cosmetically acceptable surfactant, emollient, or cosmetic active, provided that the personal care composition contains less than 0.09 wt % of silicone, and preferably is substantially free of silicone.Type: ApplicationFiled: September 15, 2010Publication date: March 17, 2011Applicant: UNION CARBIDE CHEMICALS & PLASTICS TECHNOLOGY LLCInventor: Susan L. Jordan
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Publication number: 20110011616Abstract: The present invention is a flame-retardant polyolefin/thermoplastic polyurethane formulation made from or containing a polyolefin, a thermoplastic polyurethane, and an intumescent, polyphosphate flame retardant composition. The invented system achieves elongations>400% and tensile strengths>1500 psi while the same polyolefin only achieved 100% elongation and<1000 psi tensile strength. Also, the present invention shows improved tape extrusion performance versus a comparable TPU only composition, indicating improved melt rheology/fabrication capability for extrusion applications.Type: ApplicationFiled: February 5, 2009Publication date: January 20, 2011Applicant: Union Carbide Chemicals & Plastics Technology LLCInventors: Geoffrey D. Brown, Robert F. Eaton
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Publication number: 20110009577Abstract: A gas phase polymerization process for producing a polyethylene polymer including polymerizing ethylene and optionally at least one ?-olefin comonomer in a fluidized bed reactor under condensed mode operating conditions using a Cr+6-based supported catalyst and a catalyst initiation enhancing agent is provided. The catalyst initiation enhancing agent is an aluminum alkyl solution that is present in the fluidized bed reactor at effective Al/Cr ratios between 0.2 to 1.5. A catalyst initiation enhancing system including at least one aluminum alkyl and at least one hydrocarbon solvent wherein the aluminum alkyl is present in the solvent at concentrations of less than about 0.03 molar.Type: ApplicationFiled: July 9, 2010Publication date: January 13, 2011Applicant: Union Carbide Chemicals & Plastics Technology LLCInventor: Robert J. Jorgensen
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Publication number: 20100331499Abstract: A method and apparatus are disclosed for controlling product discharge from a fluidized bed reactor and for minimizing the loss of the unreacted monomer in the fluidizing gas upon removing the solid polymer product from the reactor. The method and apparatus utilize at least one detector in the product tank or its vent line and a control system in communication with the detector and the product tank fill valve, along with certain algorithms, to adjust by an iterative process, the product discharge time, thereby maximizing resin fill in the product tank and minimizing the lost reactor gas volume.Type: ApplicationFiled: February 27, 2009Publication date: December 30, 2010Applicant: UNION CARBIDE CHEMICALS & PLASTICS TECHNOLOGY LLC.Inventors: John R. Parrish, Jeffrey B. Drabish, Oscar M. Longoria, JR., James L. Swecker, II
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Publication number: 20100230131Abstract: The present invention is a cable having (a) one or more electrical conductors or a core of one or more electrical conductors and (b) each conductor or core being surrounded by a layer of insulation. The insulation layer is prepared from a composition comprising a polyolefin and a 3-dimensional, cage-structured nanoparticle. The preferred polyolefins are polyethylene polymers, and the preferred nanoparticles are polyhedral oligomeric silsesquioxanes (POSS), polyhedral oligomeric silicates (POS), or polyhedral oligomeric siloxanes.Type: ApplicationFiled: February 26, 2007Publication date: September 16, 2010Applicant: Union Carbide Chemicals & Plastics Technology LLC (formerly Union Carbide Chemicals & Plastics TechnInventors: Suh Joon Han, Laurence H. Gross, Scott H. Wasserman
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Publication number: 20100144967Abstract: The invention is directed to a polymerization system and method of controlling resin properties during the production of bimodal and multimodal polymer compositions using at least one manipulated variable to minimize dynamic deviations from polymer characteristics. In particular embodiments, the method of control includes determining a property of the resin based on a current and/or previous values or estimates or process variables or polymer characteristics. In this manner the control actions serve to reduce process upsets or facilitate in transitioning to a new product or grade to reduce the amount of off-grade resin material produced during transition or during steady state manufacture.Type: ApplicationFiled: September 21, 2006Publication date: June 10, 2010Applicant: UNION CARBIDE CHEMICALS & PLASTICS TECHNOLOGY LLCInventors: John R. Parrish, Mark L. Nelson
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Patent number: 7521512Abstract: A catalyst composition for the polymerization of olefins comprising the combination of one or more Ziegler-Natta procatalysts comprising one or more transition metal compounds; one or more aluminum containing cocatalysts; and a mixture comprising two or more selectivity control agents (SCA's), corresponding to the formula: (CH3O)nSi(OR)4-n, wherein R, independently each occurrence, is C2-12 alkyl, C3-12 cycloalkyl, C6-18 aryl or (poly)alkyl-substituted aryl, or C7-18 poly(aryl)-substituted alkyl, and n is an integer from zero to 4.Type: GrantFiled: May 27, 2004Date of Patent: April 21, 2009Assignee: Union Carbide Chemicals & Plastics Technology LLCInventor: Stanley E. Wilson
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Patent number: 7438748Abstract: The present invention is a flame-retardant composition comprising a polyolefin polymer, a nano-silicate, a metal hydroxide, and calcium carbonate. The invention also includes a coating prepared from the flame-retardant composition as well as a wire-and-cable construction made by applying the coating over a wire or a cable. The invention also includes articles prepared from the flame-retardant composition, such as extruded sheets, thermoformed sheets, injection-molded articles, coated fabrics, roofing membranes, and wall coverings.Type: GrantFiled: February 11, 2004Date of Patent: October 21, 2008Assignee: Union Carbide Chemicals & Plastics Technology LLCInventors: Jeffrey M. Cogen, Thomas S. Lin
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Publication number: 20080220967Abstract: A catalyst composition for the preparation of oligomeric and/or polymer derivatives of olefin monomers, said composition comprising a Group 6 metal amide complex, a Group 1, 2, 12, 13, or 14 metal hydrocarbyl composition or compound, and a solid support comprising aluminum phosphate.Type: ApplicationFiled: May 19, 2008Publication date: September 11, 2008Applicant: Union Carbide Chemicals & Plastics Technology LLC (formerly Union Carbide Chemicals & Plastics TechInventors: John R. Briggs, David W. Butler, Timothy T. Wenzel, William C. Brooks, Teresa L. Fortin
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Patent number: 7420021Abstract: A catalyst composition for the polymerization of propylene comprising one or more Ziegler-Natta procatalyst compositions comprising one or more transition metal compounds and one or more monoesters of aromatic carboxylic acid internal electron donors; one or more aluminum containing cocatalysts; and a mixture of two or more different selectivity control agents, said SCA mixture comprising from 98.0 to 99.9 mol percent of one or more esters of one or more aromatic monocarboxylic acids or substituted derivatives thereof, and from 2.0 to 0.1 mol percent of one or more alkoxysilane compounds.Type: GrantFiled: August 18, 2004Date of Patent: September 2, 2008Assignee: Union Carbide Chemicals & Plastics Technology LLCInventor: Linfeng Chen
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Patent number: 7388153Abstract: The present invention is a cable comprising one or more telecommunication or power transmission media or a core of two or more such media, each medium or core surrounded by at least one jacketing or sheathing layer comprising a polypropylene homopolymer or copolymer and having a relaxation spectrum (RSI) and melt flow (MF) such that RSI*MF^a is greater than about 12 when a is about 0.5.Type: GrantFiled: September 10, 2003Date of Patent: June 17, 2008Assignee: Union Carbide Chemicals and Plastics Technology LLCInventors: Scott H. Wasserman, Geoffrey D. Brown
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Publication number: 20080114191Abstract: A process for the minimization of phosphonium ion ligand degradation products formed during reaction of a polyunsaturated olefin or an unconjugated functionalized olefin in the presence of a transition metal-triorganophosphine ligand complex catalyst to form as a product, by-product, or intermediate product a conjugated functionalized olefin having a carbon-carbon double bond conjugated to an ?-electron-withdrawing group, such as, an ?,?-unsaturated aldehyde, ketone, ester, acid, or nitrile. The minimization process involves conducting the reaction under selected conditions of conversion, temperature, pressure, or a combination thereof; and/or by selecting a triorganophosphine ligand with a specified steric and/or electronic property.Type: ApplicationFiled: January 24, 2008Publication date: May 15, 2008Applicant: Union Carbide Chemicals & Plastics Technology LLC (formerly Union Carbide Chemicals & Plastics TechnInventors: John Briggs, Wei-Jun Peng, Brian Roesch, Anthony Abatjoglou, Donald Morrison