Abstract: The present invention relates to a bitumen recovery process from oil sands. The oil sands may be surface mined and transported to a treatment area or may be treated directly by means of an in situ process of oil sand deposits that are located too deep for strip mining. Specifically, the present invention involves the step of treating oil sands with a composition comprising an alkanolamine and an ethylene oxide capped glycol ether and/or propylene oxide capped glycol ether.
Type:
Grant
Filed:
June 16, 2017
Date of Patent:
March 9, 2021
Assignee:
Dow Global Technologies LLC
Inventors:
Cole A. Witham, Yuko Kida, Biplab Mukherjee, Timothy J. Young, Christopher W. Nelson
Abstract: A high pressure polymerization process to form an ethylene-based polymer, the process comprising at least the following step: polymerizing a reaction mixture comprising ethylene and at least one comonomer, using a reactor system comprising a reactor configuration, and the following: (A) at least two reaction zones, a zone (reaction zone 1) and an ith zone (reaction zone i where i?2), (B) at least two ethylene-based feed streams, each comprising a percentage of the total make-up ethylene fed to the polymerization process, and wherein a first stream is sent to reaction zone 1 and a second stream is sent to reaction zone i; (C) a control system to control the percentage of the total make-up ethylene in the stream sent to reaction zone 1, and the percentage of the total make-up ethylene in the stream sent to reaction zone i, and wherein the ratio (Q) of the molar concentration of the at least one comonomer fed to the first reaction zone, to the molar concentration of comonomer in the sum of all ethylene-based fee
Type:
Grant
Filed:
June 23, 2017
Date of Patent:
March 9, 2021
Assignee:
Dow Global Technologies LLC
Inventors:
Otto J. Berbee, Stefan Hinrichs, Hayley A. Brown, Bharat I. Chaudhary, John O. Osby, Teresa P. Karjala
Abstract: Disclosed is a process for regenerating a hybrid solvent used to remove contaminants from a fluid stream and to provide an improved yield of purified fluid. Said process comprises at least two purification units and at least one regeneration unit wherein regenerated lean hybrid solvent and condensed water from the regeneration unit is used to reclaim additional purified fluid in the second purification unit.
Type:
Grant
Filed:
April 19, 2017
Date of Patent:
March 9, 2021
Assignee:
Dow Global Technologies LLC
Inventors:
John R. Dowdle, Timothy D. Halnon, Christophe R. Laroche, Diego Ortiz Vega, Linda L. Pirtle, Gerardo Padilla
Abstract: Crosslinkable polymeric compositions comprising an ethylene-based polymer, an organic peroxide, and a crosslinking coagent having at least one N,N-diallylamide functional group. Such crosslinkable polymeric compositions and their crosslinked forms can be employed as polymeric layers in wire and cable applications, such as insulation in power cables.
Type:
Grant
Filed:
March 20, 2015
Date of Patent:
March 9, 2021
Assignee:
Dow Global Technologies LLC
Inventors:
Yu Cai, Hong Liang Zhang, Yabin Sun, Jeffrey M. Cogen, Saurav S. Sengupta
Abstract: Recovery times and/or airflow of flexible polyurethane foam is increased by including certain tackifiers in the foam formulation. The tackifiers are characterized in being incompatible with polyol or polyol mixture used to make the foam, having a viscosity of at least 5,000 centipoise at 25#C and having a glass transition temperature of at most 20#C. The tackifier is pre-blended with certain monols to form a lower-viscosity blend that is combined with one or more other polyols and a polyisocyanate to form a reaction mixture for producing a polyurethane foam.
Type:
Application
Filed:
March 8, 2019
Publication date:
March 4, 2021
Applicant:
Dow Global Technologies LLC
Inventors:
Qinghao MENG, Meagan BROADWAY, Kaoru AOU, William J. HARRIS, Felipe A. DONATE, Daniel L. DERMODY, Christopher P. DONATE, Van M. DELK, JR., Helge BRAUN
Abstract: A polyisocyanate component, a polyurethane foaming system, and an article made therefrom, wherein the polyisocyanate component includes (a) a preformed mixture including an aromatic oxazolidone compound that is the reaction product of at least one aromatic epoxide and at least one first polyisocyanate having an average isocyanate functionality of no more than 2.7 and greater than 1.8, in the presence of at least one catalyst, the aromatic oxazolidone compound includes at least one free isocyanate group and at least one aromatic oxazolidone group, the aromatic oxazolidone group includes an aromatic group and an oxazolidone group, and (b) at least one second polyisocyanate has an average isocyanate functionality equal to or greater than 2.7 and less than 6.0. The second polyisocyanate is added to the preformed mixture to form the polyisocyanate component. The polyisocyanate component has a viscosity of no more than 4.0 Pa-sat 25° C.
Type:
Application
Filed:
May 18, 2018
Publication date:
March 4, 2021
Applicant:
Dow Global Technologies LLC
Inventors:
Yanli Feng, Weijun Zhou, Luigi Bertucelli, Rajat Duggal, Yibei Gu, Wei Liu, Davide Micheletti
Abstract: The present disclosure provides a support system. In an embodiment, the support system includes a top plate and a base plate. The top plate and the base plate have a common outer perimeter. The support system includes a support structure. The support structure supports the top plate above the base plate. The support system includes a pair of parallel rails. The parallel rails extend from the top plate outer perimeter to a closed end at a center portion of the top plate. The pair of parallel rails defines a channel. The support system includes a protrusion on each respective rail. Each protrusion extends into the channel in mirror-image relation to each other. The protrusions are located a fitment width distance away from the closed end. The protrusions and the closed end together define a filling position. The support system includes a fitment for a flexible container in the channel.
Type:
Grant
Filed:
December 31, 2018
Date of Patent:
March 2, 2021
Assignee:
Dow Global Technologies LLC
Inventors:
Marc S. Black, Chad V. Schuette, Brian W. Walther
Abstract: Disclosed is a process for regenerating a hybrid solvent used to remove contaminants from a fluid stream and to provide an improved yield of purified fluid. Said process comprises at least one purification unit (12) and at least one regeneration unit (40) wherein condensed water (72) from the regeneration unit is combined with the regenerated lean hybrid solvent (55) prior to reuse in the purification unit and none of the condensed water is recycled into the regeneration unit.
Type:
Grant
Filed:
April 19, 2017
Date of Patent:
March 2, 2021
Assignee:
Dow Global Technologies LLC
Inventors:
John R. Dowdle, Christophe R. Laroche, Diego Ortiz Vega, Linda L. Pirtle
Abstract: A process of stripping a dispersion of organic extender particles with volatile organic compounds and a method of reducing volatile organic compounds.
Type:
Grant
Filed:
December 22, 2016
Date of Patent:
March 2, 2021
Assignees:
Dow Global Technologies LLC, Rohm and Haas Company
Inventors:
Zhen Qian, Jianming Xu, Alvin M. Maurice, Daoshu Lin, Yaguang Zhao, Jiayuan Yang, Han Lv
Abstract: Embodiments relate to a polymeric scale inhibitor that is a polycarboxylic acid copolymer comprising acrylic acid, methacrylic acid, and styrene sulfonic acid. The polymeric scale inhibitor compositions are particularly suitable for high pressure/high temperature scale inhibition treatment of oil, gas, geothermal production wells and/or subterranean formations.
Abstract: Embodiments of this disclosure include processes of polymerizing olefins, the process comprising contacting ethylene and a (C3-C40)alpha-olefin comonomer in the presence of a catalyst system, the catalyst system comprising a Group IV metal-ligand complex and a metallic activator ionic complex, the metallic activator ionic complex comprising an anion and a countercation, the anion having a structure according to formula (I):
Type:
Application
Filed:
March 26, 2019
Publication date:
February 25, 2021
Applicant:
Dow Global Technologies LLC
Inventors:
Todd D. Senecal, Sukrit Mukhopadhyay, Richard J. Keaton, Jerzy Klosin, Rafael Huacuja, David M. Pearson, William H.H. Woodward
Abstract: Provided is a composition comprising one or more phenanthroquinazoline-core compounds having structure (I) wherein each of R1 and R2 is independently a substituted or unsubstituted phenyl group.
Type:
Grant
Filed:
March 15, 2017
Date of Patent:
February 23, 2021
Assignees:
Dow Global Technologies LLC, Rohm and Haas Electronic Materials Korea Ltd.
Inventors:
Kyoung Moo Koh, Mark E. Ondari, Sukrit Mukhopadhyay, Timothy J. Gallagher, Hong-Yeop Na
Abstract: A modifier for forming sub-ambient temperature use containers includes (a) from 10 wt % to 50 wt % of a block composite, a specified block composite, or a crystalline block composite, (b) from 20 wt % to 90 wt % of a first polyolefin copolymer, the first polyolefin copolymer being derived from ethylene and at least one of a C3 to C10 alpha-olefin, having a melt index from 0.5 g/10 min to 1500 g/10 min, and having a density from 0.850 g/cm3 to 0.910 g/cm3, and (c) optionally, from 30 wt % to 70 wt % of a second polyolefin copolymer, the second polyolefin copolymer being derived from ethylene and at least one of a C3 to C10 alpha-olefin, having a melt index from 100 g/10 min to 2000 g/10 min, and having a density from 0.860 g/cm3 to 0.900 g/cm3.
Type:
Grant
Filed:
March 31, 2017
Date of Patent:
February 23, 2021
Assignee:
Dow Global Technologies LLC
Inventors:
Colin Li Pi Shan, Jihean Lee, Raymond L. Laakso, Jr., Yushan Hu, Eddy I. Garcia-Meitin
Abstract: Embodiments disclosed herein include multilayer films that have at least two layers. More particularly, disclosed in embodiments herein are multilayer films that include at least a first layer and a second layer, wherein the first layer includes at least one polyethylene polymer, wherein the second layer includes at least one water-soluble polymer, wherein the second layer is insoluble in water at a temperature of less than 20° C., wherein the second layer is soluble in water at a temperature of 20° C. or greater, and wherein the first layer has one or more openings through the first layer to expose the second layer. Also disclosed herein are methods of using such multilayer films for extracting metal from metal ore.
Type:
Grant
Filed:
December 15, 2015
Date of Patent:
February 23, 2021
Assignees:
Dow Global Technologies LLC, PBBPolisur S.R.L., Dow Quimica de Colombia S.A.
Inventors:
Maximiliano Zanetti, Miguel Molano Niampira, Jorge C. Gomes
Abstract: A silicone-polyether copolymer has the formula Xg[ZjYo]c, where each X is an independently selected silicone moiety having a particular structure, each Y is an independently selected polyether moiety, each Z is an independently selected siloxane moiety, subscript c is from 1 to 150, subscript g is >1, and each subscript j and o are independently >0 and <2, with the proviso that j+o=2 in each moiety indicated by subscript c. A method of preparing the silicone-polyether copolymer is also disclosed, and comprises reacting a polyether compound, a chain extending organosilicon compound, and an endcapping organosilicon compound in the presence of a hydrosilylation catalyst. A sealant is also disclosed, the sealant comprising the silicone-polyether copolymer and a condensation-reaction catalyst.
Type:
Grant
Filed:
June 26, 2018
Date of Patent:
February 16, 2021
Assignees:
Dow Silicones Corporation, Dow Global Technologies LLC
Inventors:
Martin Grasmann, David Hagan, Brian Harkness, William H. Heath, Stephen Michael Hlinka, II, Eric Joffre, William Johnson, Jeanette Young, Bizhong Zhu
Abstract: The invention relates to oligomerization of olefins, such as ethylene, to higher olefins, such as a mixture of 1-hexene and 1-octene, using a catalyst system that comprises a) a source of chromium b) one or more activators and c) a phosphacycle-containing ligating compound. Additionally, the invention relates to a phosphacycle-containing ligating compound and a process for making said compound.
Type:
Grant
Filed:
June 8, 2020
Date of Patent:
February 16, 2021
Assignee:
Dow Global Technologies LLC
Inventors:
Jerzy Klosin, Kara A. Milbrandt, Scott D. Boelter, David R. Wilson, Mari S. Rosen, Dean M. Welsh, Peter M. Margl, Kyoung Moo Koh, David M. Pearson, Rafael Huacuja
Abstract: Alkylene oxides are polymerized in a tubular reactor. The alkylene oxide is continuously introduced into the tubular reactor through multiple introduction points located along the length of the tubular reactor. Monomer flow rates are increased along the length of the reactor to maintain a nearly constant concentration of unreacted alkylene oxide.
Type:
Grant
Filed:
September 17, 2017
Date of Patent:
February 16, 2021
Assignee:
Dow Global Technologies LLC
Inventors:
Nima N. Nikbin, Carlos M. Villa, Maria Jose Nieves Remacha, Irfan Khan, William H. Heath, John G. Pendergast, Jr., Matthias Schaefer, Anna Forlin
Abstract: The present invention provides resins that can be used as a tie layer in a multilayer structure and to multilayer structures including one or more tie layers formed from such resins. In one aspect, a resin for use as a tie layer in a multilayer structure that includes a high density polyethylene having a density greater than 0.960 g/cm3, wherein the high density polyethylene includes 1 to 99 weight percent of the resin, a maleic anhydride grafted high density polyethylene, wherein the maleic anhydride grafted high density polyethylene includes 1 to 99 weight percent of the resin, and a catalyst including at least one Lewis acid.
Type:
Grant
Filed:
August 5, 2016
Date of Patent:
February 16, 2021
Assignee:
Dow Global Technologies LLC
Inventors:
Yong Zheng, Brian W. Walther, Santosh S. Bawiskar, Cristina Serrat
Abstract: A solid non-aqueous gel air odorizer is provided, including: a poly(propylene oxide); an ethyl cellulose polymer; a C1-5 alkyl monoester of a C8-22 fatty acid; and a fragrance; wherein the solid non-aqueous gel air odorizer contains <1.5 wt % water.
Abstract: An olefin polymerization catalyst system includes a procatalyst component chosen from metal-ligand complexes of Formula (I): In Formula (I), each X is independently a monodentate or polydentate ligand that is neutral, monoanionic, or dianionic; the metal-ligand complex of Formula (I) is overall neutral; each Y1-Y4 and Y7-Y10 independently is selected from C or N such that six membered diaza (N2) or triaza (N3) rings are formed; wherein each R1 and R10 independently are chosen from (C1-C40) hydrocarbyl, substituted (C1-C40) hydrocarbyl, (C1-C40) heterohydrocarbyl, and substituted (C1-C40) heterohydrocarbyl or is absent; each R2, R3, R4, R7, R8, and R9 is chosen from hydrogen; (C1-C40) hydrocarbyl; substituted (C1-C40) hydrocarbyl; (C1-C40) heterohydrocarbyl; substituted (C1-C40) heterohydrocarbyl; halogen, nitro (NO2) or is absent; each R5 and R6 independently is chosen from (C1-C40) hydrocarbyl, substituted (C1-C40) hydrocarbyl, (C1-C40) heterohydrocarbyl, and substituted (C1-C40) heterohydrocarbyl.
Type:
Grant
Filed:
March 30, 2017
Date of Patent:
February 16, 2021
Assignee:
Dow Global Technologies LLC
Inventors:
Brad C. Bailey, Matthew D. Christianson, Sanil Sreekumar