Patents Assigned to Union Carbide Chemicals
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Patent number: 8124808Abstract: A method of transalkoxylation of nucleophilic compounds in which an alkoxylated and a nucleophilic compound are combined in a suitable vessel and reacted in the presence of a heterogeneous catalyst under conditions capable of transferring at least one hydroxyalkyl group from the alkoxylated compound to the nucleophilic compound. The method is especially useful in the transalkoxylation of alkanolamines to transfer a hydroxyalkyl group from an alkanolamine having a greater number of hydroxyalkyl groups to an alkanolamine having a lesser number of hydroxyalkyl groups.Type: GrantFiled: October 6, 2009Date of Patent: February 28, 2012Assignee: Union Carbide Chemicals & Plastics Technology LLCInventors: Stephen W. King, William C. Hoffman
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Patent number: 8105635Abstract: The present invention relates to post-treatment compositions and methods useful for modifying the distribution of metal biocide(s) in biodegradable substrates such as wood, other cellulosic products, starch-based products, and the like that are vulnerable to decay due to insects, fungi, microbes, and the like. The compositions include complexing agents of moderate strength that are able to facilitate mobilization and redistribution of metal biocide(s) in substrates without undue leaching. The compositions can be used, for example, to redistribute the metal biocide(s) into depleted regions of a substrate by redistribution of metal biocide from other regions of the substrate. Post-treatment compositions that include additional metal biocide can also replenish these regions with the freshly supplied, additional biocide. Thus, the depleted regions can be restored by redistribution and/or replenishment mechanisms. Service life of substrates in the field benefits by these post-treatments as a consequence.Type: GrantFiled: March 12, 2009Date of Patent: January 31, 2012Assignee: Union Carbide Chemicals & Plastics Technology LLCInventors: Kimberly S. Hayson, William C. Hoffman, Albert F. Joseph, Brian T. Keen
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Patent number: 8071699Abstract: 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: GrantFiled: September 21, 2006Date of Patent: December 6, 2011Assignee: Union Carbide Chemicals & Plastics Technology LLCInventors: John R. Parrish, Mark L. Nelson
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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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Patent number: 7872198Abstract: A cable comprising one or more electrical conductors or communications media or a core of two or more electrical conductors or communications media, each electrical conductor, communications medium, or core being surrounded by a layer comprising: (a) polyethylene; polypropylene; or mixtures thereof; (b) carbon nanotubes; (c) a conductive carbon black other than carbon nanotubes; and (d) optionally, a copolymer of acrylonitrile and butadiene wherein the acrylonitrile is present in an amount of about 30 to about 60 percent by weight based on the weight of the copolymer or a silicone rubber.Type: GrantFiled: April 8, 2008Date of Patent: January 18, 2011Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventors: Wei-Kuo Lee, Marios Avgousti, Suh Joon Han
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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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Publication number: 20100003439Abstract: 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 (CM?) less than ?0.Type: ApplicationFiled: October 19, 2007Publication date: January 7, 2010Applicants: Dow Global Technologies Inc., Union Carbide Chemicals & Plastics TechnologyLLC( formerlyUnion CabideChemicals&Plastic tech,Corp.Inventors: 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: 7625987Abstract: A process for controlling a continuous gas phase exothermic process in a reactor comprising: (i) effecting a gas phase exothermic reaction under a set of operating conditions in the presence of a cooling agent, the cooling agent having a pre-selected concentration and feed rate of an induced cooling agent; (ii) determining a maximum production rate (I) without regard to limitations due to the cooling agent under the operating conditions; (iii) determining a maximum production rate (II) with regard to limitations due to the cooling agent under the operating conditions; (iv) calculating an optimal concentration of the induced cooling agent such that the difference between (I) and (II) is minimized; and (v) adjusting the feed rate of the induced cooling agent to achieve the concentration value calculated in (iv).Type: GrantFiled: May 26, 2004Date of Patent: December 1, 2009Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventors: John R. Parrish, Glenn A. Lambert, Daniel N. Thomas