Abstract: A pulsed compression reactor may include a reactor housing, a spring piston, and a driver piston. The reactor housing may define an interior volume, and may include a first passage and a second passage which lead to the interior volume. The spring piston may be positioned within the interior volume, wherein the spring piston and the reactor housing at least partially define a perimeter of a gas spring buffer chamber within the interior volume. The driver piston may be positioned within the interior volume, wherein the spring piston, the driver piston, and the reactor housing at least partially define a perimeter of a reaction chamber within the interior volume.
Type:
Application
Filed:
October 24, 2018
Publication date:
November 12, 2020
Applicant:
Dow Global Technologies LLC
Inventors:
Cornelis Biesheuvel, Adrianus C. De Kok, Hendrik L. Pelt, Wim M. Kamperman
Abstract: External thermal insulation composite systems described herein include a concrete or masonry wall and a multilayer thermal insulation board disposed on the concrete or masonry wall. The multilayer thermal insulation board includes at least one closed cell foam layer comprising polyurethane and polyisocyanurate having an open cell volume of less than 20% by volume according to ASTM D 6226 and at least one open cell foam layer comprising polyurethane and polyisocyanurate having an open cell volume of greater than 80% by volume according to ASTM D 6226.
Type:
Application
Filed:
November 7, 2018
Publication date:
November 12, 2020
Applicant:
Dow Global Technologies LLC
Inventors:
Giuseppe Vairo, Elena Ferrari, Luigi Bertucelli, Alberto Fangareggi
Abstract: A method for preparing methyl methacrylate from methacrolein and methanol. The method comprises contacting a mixture comprising methacrolein, methanol and oxygen with a heterogeneous catalyst comprising a support and a noble metal, wherein said catalyst has an average diameter of at least 200 microns and at least 90 wt % of the noble metal is in the outer 70% of catalyst volume, and wherein oxygen concentration at a reactor outlet is from 0.5 to 7.5 mol %.
Type:
Grant
Filed:
June 25, 2018
Date of Patent:
November 10, 2020
Assignees:
Dow Global Technologies LLC, Rohm and Haas Company
Inventors:
Kirk W. Limbach, Dmitry A. Krapchetov, Christopher D. Frick, Daniel A. Hickman, Jeffrey Herron, Kurt D. Olson, D. Wayne Blaylock, Victor Sussman, Wen-Sheng Lee
Abstract: A method for preparing methyl methacrylate from methacrolein and methanol. The method comprises contacting a mixture comprising methacrolein, methanol and oxygen with a heterogeneous catalyst comprising a support and a noble metal, wherein said catalyst has an average diameter of at least 200 microns and at least 90 wt % of the noble metal is in the outer 50% of catalyst volume.
Type:
Grant
Filed:
June 25, 2018
Date of Patent:
November 10, 2020
Assignees:
Dow Global Technologies LLC, Rohm and Haas Company
Inventors:
Kirk W. Limbach, Christopher D. Frick, Victor Sussman, Wen-Sheng Lee
Abstract: A method for preparing methyl methacrylate from methacrolein and methanol. The method comprises contacting in a reactor a mixture comprising methacrolein, methanol and oxygen with a heterogeneous catalyst comprising a support and a noble metal, wherein said catalyst has an average diameter of at least 200 microns, wherein oxygen concentration at a reactor outlet is from 0.5 to 7.5 mol % and wherein the reactor comprises a partition with the catalyst bed on a first side of the partition and with flow through the catalyst bed in a first direction and flow on a second side of the partition in an opposite direction.
Type:
Grant
Filed:
June 25, 2018
Date of Patent:
November 10, 2020
Assignees:
Dow Global Technologies LLC, Rohm and Haas Company
Inventors:
Kirk W. Limbach, Dmitry A. Krapchetov, Christopher D. Frick, Daniel A. Hickman
Abstract: A method for preparing methyl methacrylate from methacrolein and methanol. The method comprises contacting a mixture comprising methacrolein, methanol and oxygen with a heterogeneous catalyst comprising a support and a noble metal, wherein said catalyst has an average diameter of at least 200 microns and average concentration of methacrolein is at least 15 wt %.
Type:
Grant
Filed:
June 25, 2018
Date of Patent:
November 10, 2020
Assignees:
Dow Global Technologies LLC, Rohm and Haas Company
Inventors:
Dmitry A. Krapchetov, Kirk W. Limbach, Daniel A. Hickman, Andrew T. Heitsch, Victor Sussman, Wen Sheng Lee, Ramzy Shayib
Abstract: Container (1) having a container body (10) having a sealing lip (12). The container (1) comprises a bottom perforated film (20) adhered to the sealing lip (12) at a first adhesion strength (S1), a top film (30) adhered to the bottom perforated film (20) at a second adhesion strength (S2) at locations not vertically aligned with a seal end (38), and wherein the top film (30) adheres to the bottom perforated film (20) at a third adhesion strength (S3) at the seal end (38). The third adhesion strength (S3) is greater than the first adhesion strength (S1) which is greater than the second adhesion strength (S2), such that the top film (30) is peelable relative to the bottom perforated film (24) at the opening end (36), and the top film (30) is peelable with the bottom perforated film (20) relative to the container body (10) at the seal end (38).
Type:
Grant
Filed:
December 15, 2016
Date of Patent:
November 10, 2020
Assignee:
Dow Global Technologies LLC
Inventors:
Andre Farstad, Maria Isabel Arroyo Villan, Marcelo Tognola
Abstract: A method for preparing methyl methacrylate from methacrolein and methanol; said method comprising contacting in a reactor a mixture comprising methacrolein, methanol and oxygen with a heterogeneous catalyst comprising a support and a noble metal, wherein pH at the reactor outlet is from 3 to 6.7.
Type:
Grant
Filed:
June 25, 2018
Date of Patent:
November 10, 2020
Assignees:
Dow Global Technologies LLC, Rohm and Haas Company
Inventors:
Dmitry A. Krapchetov, James Elder, William G. Worley, Kirk W. Limbach, Daniel A. Hickman, Alexey Kirilin, Wen Sheng Lee, Victor Sussman
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:
March 13, 2019
Date of Patent:
November 3, 2020
Assignee:
Dow Global Technologies LLC
Inventors:
Ronald P. Markovich, Robert J. Jorgensen
Abstract: A method for preparing methyl methacrylate from methacrolein and methanol; said method comprising contacting in a reactor a mixture comprising methacrolein, methanol and oxygen with a catalyst bed of heterogeneous catalyst comprising a support and a noble metal, wherein base is added to the reactor while maintaining time to reach 95% homogeneity at no greater than 10 minutes.
Type:
Grant
Filed:
June 25, 2018
Date of Patent:
November 3, 2020
Assignees:
Dow Global Technologies LLC, Rohm and Haas Company
Inventors:
Kirk W. Limbach, Justin Walker, Alan L. Stottlemyer, Jeffrey Herron
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:
Application
Filed:
June 8, 2020
Publication date:
October 29, 2020
Applicant:
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: The invention provides a composition comprising an ethylene-based polymer and wherein the ethylene-based polymer has the following properties: (A) a CO content from greater than 0 to less than 10 weight percent CO (carbon monoxide), based on the weight of the polymer, and (B) a melt index (I2) from 0.1 to less than 3 g/10 min; and (C) a density from 0.923 to 0.928 g/cc; and wherein the ethylene-based polymer has a melting point, Tm, in ° C., that meets the following relationship: Tm (° C.)<601.4*(Density N in g/cc)?447.8° C.
Type:
Grant
Filed:
April 19, 2017
Date of Patent:
October 27, 2020
Assignee:
Dow Global Technologies LLC
Inventors:
Teresa P. Karjala, Alfred E. Vigil, Jr., Frances Olajide, Jr., Lori L. Kardos
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:
Grant
Filed:
April 21, 2017
Date of Patent:
October 27, 2020
Assignee:
Dow Global Technologies LLC
Inventors:
Cornelis F J Den Doelder, Stefan Hinrichs, Eva-Maria Kupsch, Otto J. Berbee, Rajesh P. Paradkar, Bernard A. Fehr, Carmelo Declet Perez
Abstract: The present invention provides a quantum dot light emitting diode comprising i) an emitting layer of at least one semiconductor nanoparticle made from semiconductor materials selected from the group consisting of Group II-VI compounds, Group II-V compounds, Group III-VI compounds, Group III-V compounds, Group IV-VI compounds, Group I-III-VI compounds, Group II-IV-VI compounds, Group II-IV-V compounds, or any combination thereof; and ii) a polymer for hole injection or hole transport layer; and the polymer comprises, as polymerized units, at least one or more monomers having a first monomer structure comprising a) a polymerizable group, b) an electroactive group with formula NAr1Ar2Ar3 wherein Ar1, Ar2 and Ar3 independently are C6-C50 aromatic substituents, and (c) a linker group connecting the polymerizable group and the electroactive group.
Type:
Grant
Filed:
June 26, 2017
Date of Patent:
October 27, 2020
Assignees:
Rohm and Haas Electronic Materials LLC, Dow Global Technologies LLC
Inventors:
Anatoliy N Sokolov, Brian Goodfellow, Robert David Grigg, Liam P Spencer, John W Kramer, David D Devore, Sukrit Mukhopadhyay, Peter Trefonas, III
Abstract: The present invention discloses a polymeric polyol composition useful for making polyurethane polymers, especially polyurethane foams. Said polyurethane polymer foams demonstrate a good balance of mechanical properties, physical properties, and low emissions. The polymeric polyol composition is the reaction product(s) of (i) a polyamine initiator composition comprising the polymerization product(s) of aminoethylpiperazine with (ii) at least one epoxide compound, at least one glycidyl ether compound, or mixtures thereof.
Type:
Grant
Filed:
June 7, 2017
Date of Patent:
October 27, 2020
Assignee:
Dow Global Technologies LLC
Inventors:
Michael T. Malanga, Sabrina Fregni, George J. Frycek, Stephen W. King, Jean-Paul Masy, Sadeka Onam
Abstract: Embodiments of a polymer compositions and articles comprising such compositions contain at least one multimodal ethylene-based polymer, wherein the multimodal ethylene-based polymer exhibits superior low temperature performance.
Type:
Application
Filed:
December 19, 2018
Publication date:
October 22, 2020
Applicant:
Dow Global Technologies LLC
Inventors:
Didem Oner-Deliormanli, Yijian Lin, Mehmet Demirors, Jong-young Lee, David T. Gillespie
Abstract: The present disclosure provides for a lubricant formulation and a method of forming the lubricant formulation for use in an internal combustion engine. The lubricant formulation includes a base oil and an esterified oil-soluble polyalkylene glycol (E-OSP) of Formula (I): R1 [O(R2O)n(R3O)m(C?O)R4]p wherein R1 is a linear alkyi having 1 to 18 carbon atoms, a branched alkyl having 4 to 18 carbon atoms or an aryl with 6 to 30 carbon atoms; R2O is an oxypropylene moiety derived from 1, 2-propylene oxide; R3O is an oxvbutvlene moiety derived from butylene oxide, wherein R2O and R3O are in a block or a random distribution; R4 is a linear alkyl with to 18 carbon atoms, a branched alkyl with 4 to 18 carbon atoms or an aryl with 6 to 18 carbon atoms; n and m are each independently integers ranging from 0 to 20 wherein n+m is greater than 0, and p is an integer from 1 to 4.
Type:
Application
Filed:
December 25, 2017
Publication date:
October 22, 2020
Applicant:
Dow Global Technologies LLC
Inventors:
Martin R. Greaves, Yaokun Han, Yong Zhao
Abstract: A composition comprising (A) from 10 wt % to 90 wt % of a propylene component including at least one propylene based polymer having a propylene content of at least 50.0 wt %, based on the total weight of the propylene based polymer, and a melt flow rate from 0.5 g/10 min to 200.0 g/10 min (ASTM D-1238 at 230° C., 2.16 kg); (B) from 1 wt % to 60 wt % of a polyolefin elastomer; (C) from 1 wt % to 20 wt % of a block composite comprising (i) an ethylene-propylene copolymer, (ii) an isotactic polypropylene copolymer, and (iii) a block copolymer including an ethylene-propylene soft block that has a same composition as the ethylene-propylene copolymer of the block composite and an isotactic polypropylene hard block that has a same composition as the isotactic polypropylene copolymer of the block composite; and (D) optionally, from 0.1 wt % to 10 wt % of an antioxidant.
Type:
Application
Filed:
May 24, 2017
Publication date:
October 22, 2020
Applicant:
Dow Global Technologies LLC
Inventors:
Olaf HENSCHKE, Yahong ZHANG, Wei LI, Hang WU, Takahiko OHMURA, Yushan HU, Ming MING, Krischan JELTSCH
Abstract: The present invention relates to a compound having the following structure I: where Ar1, Ar2; R1, m, and n are defined herein. The compound of the present invention is useful as an open time additive in waterborne coatings compositions, particularly waterborne paint compositions.
Type:
Grant
Filed:
June 12, 2018
Date of Patent:
October 20, 2020
Assignees:
Rohm and Haas Company, Dow Global Technologies LLC
Inventors:
Edward D. Daugs, John J. Rabasco, Antony K. Van Dyk, Tianlan Zhang
Abstract: A process for recovery of C2 and C3 components in an on-purpose propylene production system includes utilizing a packed rectifier with a countercurrent stream to strip C2 and C3 components from a combined de-ethanizer overhead lights vapor and cracked gas vapor stream.
Type:
Grant
Filed:
September 22, 2015
Date of Patent:
October 20, 2020
Assignee:
Dow Global Technologies LLC
Inventors:
Isa K. Mbaraka, William L. Jackson, Jr., Martin A. Cogswell, Mark Siddoway, Brien A. Stears