Abstract: A wireless-communications-tower component being at least partially formed from a polymer composite. The polymer composite comprises a thermoplastic polymer and a filler, where the thermoplastic polymer is non-foamed. The polymer composite has a thermal conductivity of at least 0.5 watt per meter Kelvin (“W/m?K”) measured at 25 C. Such wireless-communications-tower components include radio frequency (“RF”) cavity filters, heat sinks, enclosures, and combinations thereof.
Type:
Grant
Filed:
November 13, 2013
Date of Patent:
May 14, 2019
Assignee:
Dow Global Technologies LLC
Inventors:
Mohamed Esseghir, Bret P. Neese, William J. Harris
Abstract: A filtration assembly including: i) a hyperfiltration assembly including: a high pressure vessel including a feed port, concentrate port and permeate port, and a plurality of serially arranged spiral wound hyperfiltration membrane modules; ii) a bioreactor assembly including: a plurality of spiral wound bioreactors each comprising a flat sheet having two opposing bio-growth surfaces and a feed spacer spirally wound about an axis (Y); and iii) a fluid flow pathway adapted for fluid connection with a fluid feed source and extending in a parallel flow pattern through the bioreactors, and subsequently into the feed port of the high pressure vessel, successively through the spiral wound hyperfiltration membrane modules in a serial flow pattern and out of the concentrate port and permeate port.
Abstract: The invention provides a composition comprising the following: A) a first ethylene-based polymer, formed by a high pressure, free-radical polymerization process, and comprising the following properties: a) a Mw(abs)/Mw(GPC)<2.2; and b) a MS versus I2 relationship: MS?C×[(I2)D], where C=13.5 cN/(dg/min)D, and D=?0.55, c) a melt index (I2) from 0.1 to 0.9 g/10 min; and B) a second ethylene-based polymer; and wherein the second ethylene-based polymer has a melt index (I2) from 0.1 to 4.0 g/10 min.
Type:
Grant
Filed:
November 2, 2017
Date of Patent:
May 14, 2019
Assignee:
Dow Global Technologies LLC
Inventors:
Cornelis F. J. den Doelder, Teresa P. Karjala, Otto J. Berbee, Lori L. Kardos
Abstract: A coating composition which comprises a dispersion comprising: (a) a core comprising a base polymer; (b) a shell at least partially surrounding said core, wherein said shell comprising a polar polymeric stabilizing agent; and (c) one or more hydrophobic particulate fillers embedded at least partially in said shell is provided.
Type:
Grant
Filed:
August 2, 2018
Date of Patent:
May 14, 2019
Assignee:
Dow Global Technologies LLC
Inventors:
Jouko Vyorykka, David L. Malotky, Ronald Wevers
Abstract: The present invention relates to an aqueous alkanolamine solution demonstrating low volatility comprising 2-di-methylamino-2-hydroxymethyl-1, 3-propanediol useful for removing acid gases from gaseous mixtures. Said aqueous alkanolamine solution may further comprise one or more of an acid or acid-forming compound, another amino compound, an activator, a physical solvent, or one or more other compounds used in gal-liquid treatment practices. Further, the present invention relates to a process for removing acid gases from a gaseous mixture, preferably hydrogen sulfide, comprising the step of contacting the gaseous mixture with said aqueous alkanolamine solution. Examples of the gaseous mixtures include natural gas, synthesis gas, tail gas, and refinery gas.
Abstract: A process for producing an ethylene-based polymer comprises polymerizing, by the presence of at least one free-radical initiator and using a high pressure tubular polymerization process, a reaction mixture containing ethylene and at least one CTA system comprising one or more CTA components to produce the ethylene-based polymer. The free-radical initiator is dissolved in a solvent comprising a saturated hydrocarbon to form an initiator solution which is added to the polymerization using an initiator feed line to an initiator injection pump. At least 50 wt % of the solvent has i) a dry point of less than or equal to 160° C. and ii) an initial boiling point of greater than or equal to 100° C. The polymerization process has a ratio of inlet pressure to first peak temperature of less than or equal to 9 Bar/° C.
Type:
Application
Filed:
April 21, 2017
Publication date:
May 9, 2019
Applicant:
Dow Global Technologies LLC
Inventors:
Cornelis FJ DEN DOELDER, Stefan HINRICHS, Eva-Maria KUPSCH, Otto J. BERBEE, Rajesh P. PARADKAR, Bernard A. FEHR, Carmelo Declet PEREZ
Abstract: A composition includes an esterified styrene/maleic anhydride copolymer, where the esterified styrene/maleic anhydride copolymer contains the following copolymerized components: (a) styrenic component; (b) a dicarboxylic acid ring-opened maleic anhydride; and (c) a half ester of a ring-opened maleic anhydride where the ester is a product of reacting maleic anhydride with poly(ethylene glycol) methyl ether having a number-average molecular weight in a range of 100 to 800 grams per mole, where the molar ratio of component (c) to component (b) is greater than 0.5 as determined by nuclear magnetic resonance spectroscopy, and the molar ratio of component (a) to the sum of components (b) and (c) is 1.0 or more and 2.0 or less as determined by nuclear magnetic resonance spectroscopy.
Type:
Application
Filed:
April 20, 2017
Publication date:
May 2, 2019
Applicant:
Dow Global Technologies LLC
Inventors:
Robert Baumann, Nipon Pothayee, Marc Schmitz
Abstract: An antioxidant package composition including a combination of: (i) at least one aromatic amine, and (ii) at least one polyether sulphide; a lubricant composition including: (a) the above antioxidant package and (b) at least one base oil; a process for preparing the antioxidant package; and a process for preparing the lubricant composition.
Type:
Application
Filed:
June 21, 2017
Publication date:
May 2, 2019
Applicant:
Dow Global Technologies LLC
Inventors:
Martin R. Greaves, Evelyn A. Zaugg-Hoozemans
Abstract: A wellbore fluid including a peroxide degradable polymer and an encapsulated peroxide source. The peroxide degradable polymer may be a polysaccharide. The peroxide source may include an inorganic peroxide, including zinc and alkaline earth metal peroxides, such as magnesium peroxide. The encapsulating material may be a polymer, including a metal crosslinked acrylic polymer. The release of peroxide, from peroxide sources generally, can be controlled by means of pH such that peroxide source can be activated, and peroxide released, by a change in pH. In a wellbore, this pH change can be effected by using produced fluids to lower the pH of a more basic wellbore fluid.
Type:
Grant
Filed:
July 31, 2014
Date of Patent:
April 30, 2019
Assignees:
Dow Global Technologies LLC
Inventors:
Chun Liu, Carol E. Mohler, Theodore Tysak, Paul Mercando, Kacee B. Ender, Disha Jain
Abstract: The invention provides a process to prepare an ethylene-based polymer, said process comprising polymerizing ethylene in the presence of at least one initiator system selected from the following: a) class 1 initiator system, b) class 2 initiator system, c) class 3 initiator system, or d) a combination thereof; and at a inlet pressure (P2) greater than, or equal to, 1000 Bar (100 MPa); and in a reactor system comprising at least one hyper compressor and a reactor configuration comprising at least one reactor, which comprises at least one reaction zone; and wherein the inlet pressure (P2) is reduced by at least 200 Bar, as compared to a similar polymerization, in the same reactor system, except it is operated at a higher inlet pressure (P1), and at a different hyper compressor throughput, and at a different maximum temperature for at least one reaction zone, and optionally, at a different amount of CTA system fed to the reactor configuration; and wherein, for the process, the “Ratio of total reactor consumption
Type:
Grant
Filed:
December 18, 2015
Date of Patent:
April 30, 2019
Assignee:
Dow Global Technologies LLC
Inventors:
Cornelis J F Hosman, Otto J. Berbee, Sergio E. Goncalves, Nhi Dang
Abstract: A polishing layer analyzer is provided, wherein the analyzer is configured to detect macro inhomogeneities is polymeric sheets and to classify the polymeric sheets as either acceptable or suspect.
Type:
Grant
Filed:
January 22, 2016
Date of Patent:
April 30, 2019
Assignees:
Rohm and Haas Electronic Matericals CMP Holdings, Inc., Dow Global Technologies LLC
Inventors:
Scott Chang, Jeff Tsai, Francis V. Acholla, Andrew Wank, Mark Gazze, William A. Heeschen, James David Tate, Leo H. Chiang, Swee-Teng Chin
Abstract: Embodiments of laminated structures include a first film comprising a first polyolefin; an intermediate layer comprising a laminate adhesive, and a second film comprising a second polyolefin. The laminated structures exhibit excellent elastic recovery properties, ensuring that the laminated structure can adapt and hold to the shape of the packaged product.
Type:
Grant
Filed:
September 20, 2016
Date of Patent:
April 30, 2019
Assignee:
Dow Global Technologies LLC
Inventors:
João Gargalaka, Nicolas C. Mazzola, Jorge C. Gomes
Abstract: Dispersions of polyurea particles are made by reacting polyisocyanate compounds and coreactants that include at least one polyamine while dispersed in a base polyether. The polyisocyanate or the polyamine, or both, has a functionality of at least 2. A highly preferred coreactant is an alkylthio-substituted aromatic diamine such as 3,5-di(methylthio)-2,4-toluene diamine. The dispersions have extremely small particles, which promotes storage stability.
Type:
Grant
Filed:
December 11, 2014
Date of Patent:
April 30, 2019
Assignees:
Dow Global Technologies LLC, Rohm and Haas Company
Abstract: The instant invention provides a polyethylene composition and process for polymerizing the same. The polyethylene composition according to the present invention comprises the polymerization reaction of ethylene and optionally one or more ?-olefin comonomers in the presence of a catalyst system, wherein said polyethylene composition comprises at least 2 or more molecular weight distributions, measured via triple detector GPC low angle laser light scattering (GPC-LALLS), described in further details hereinbelow, wherein each molecular weight distribution has a peak, and wherein measured detector response of peak 1 divided by the measured detector response of peak 2 is in the range of from 0.50 to 0.79, for example from 0.55 to 0.77.
Type:
Grant
Filed:
October 23, 2017
Date of Patent:
April 30, 2019
Assignee:
Dow Global Technologies LLC
Inventors:
Ronald P. Markovich, Robert J. Jorgensen
Abstract: The invention provides an apparatus for polymer chromatography, comprising at least one column that comprises a first stationary phase comprising one of the following: A) a material comprising at least one non-carbon atom, excluding glass or a metal, selected from molybdenum sulfide MoS2, tungsten sulfide WS2, silicon carbide SiC, boron nitride BN, or combinations thereof, or B) glass, or a metal, or combinations thereof, and a material comprising at least one non-carbon atom selected from molybdenum sulfide MoS2, tungsten sulfide WS2, silicon carbide SiC, boron nitride BN, or combinations thereof. The invention also provides a method for polymer chromatography, comprising introducing a solution, comprising a polymer, into a liquid flowing through a first stationary phase, and wherein the first stationary phase comprises one of foregoing materials (A) or (B).
Type:
Grant
Filed:
June 1, 2012
Date of Patent:
April 30, 2019
Assignee:
Dow Global Technologies LLC
Inventors:
Rongjuan Cong, Charles M. Cheatham, Al Parrott, Wallace W. Yau, Lonnie G. Hazlitt, Zhe Zhou, Alexander W. Degroot, Matthew D. Miller
Abstract: An apparatus used in a fluidized reaction process comprising a vessel; a riser housed within the vessel; and a plurality of angled guide supports, wherein each guide support comprises an tubular section having a first end and a second end; a first hinge wherein a first end of the first hinge is connected to the first end of the tubular section, a second hinge wherein a first end of the second hinge is connected to the second end of the tubular section, wherein a second end of the first hinge is connected to an inside surface of the vessel and a second end of the second hinge is connected to the riser guide is provided.
Abstract: A method of producing a polyurethane based foam that includes providing a ground crop residue having an average particle size of less than 10 mm and that is prepared by grinding crop residues, providing a polyurethane system that includes an isocyanate component and an isocyanate-reactive component, of which the polyurethane system has an isocyanate index from 70 to 350, forming a modified polyurethane system by adding the ground crop residue to the polyurethane system in a range from 1.0 wt % to 20.0 wt %, based on a total weight of the modified polyurethane system, and forming the polyurethane based foam so as to have an applied density from 30 kg/m3 to 75 kg/m3, according to ASTM D-1622, and to have the ground crop residue embedded within polyurethane polymers that are a reaction product of the isocyanate component and the isocyanate-reactive component of the polyurethane system.
Type:
Application
Filed:
May 22, 2017
Publication date:
April 25, 2019
Applicant:
Dow Global Technologies LLC
Inventors:
Paolo Golini, Giuseppe Vairo, Matthew A. Robinson, Swithin P. Adu-Peasah
Abstract: An aqueous coating composition providing the resulting coatings with balanced flexibility and anti-tacky properties, and a method of preparing the aqueous coating composition.
Type:
Application
Filed:
May 13, 2016
Publication date:
April 25, 2019
Applicants:
Dow Global Technologies LLC, Rohm and Haas Company, Rohm and Haas Company
Abstract: A functionalized ethylene-based polymer dissolved in an appropriate solvent and applied to a nonpolar surface can change the surface polarity/characteristics of the nonpolar surface. This change to the surface polarity/characteristics of the nonpolar surface allows adhesion of materials, such as paint, to surfaces such as polypropylene, polyethylene and polyolefin elastomers.
Abstract: A microlayer component having improved oxygen and water vapor barrier properties (i.e., decreased permeabilities) comprises a barrier microlayer of a semi-crystalline barrier polymer in direct contact with a confining microlayer to promote in-plane crystalline lamellae formation. A microlayer component having a significant amount of in-plane crystalline lamellae may be characterized by at least 1.5× oxygen permeability improvement and at least 1.5× water vapor permeability improvement. A microlayer component having at least 1.5× improvement in oxygen and water vapor permeability may be coextruded and subjected to post extrusion stretching or heat treating.
Type:
Grant
Filed:
November 18, 2013
Date of Patent:
April 23, 2019
Assignee:
Dow Global Technologies LLC
Inventors:
Steven R. Jenkins, Patrick Lee, Joseph Dooley, Donald E. Kirkpatrick, Bernard Obi