Abstract: A meltblown nonwoven formed from a bicomponent fiber, wherein: the bicomponent fiber has a first region and a second region, the first region is formed from a first composition comprising at least 75 wt. % of a polypropylene; the second region is formed from a second composition comprising at least 75 wt. % of an ethylene/alpha-olefin interpolymer.
Type:
Grant
Filed:
July 20, 2020
Date of Patent:
March 26, 2024
Assignee:
Dow Global Technologies, LLC
Inventors:
Aleksandar Stoiljkovic, Eduardo Alvarez, Yijian Lin
Abstract: A heterogeneous procatalyst includes a preformed heterogeneous procatalyst and a metal-ligand complex. The preformed heterogeneous procatalyst includes a titanium species and a magnesium chloride (MgCl2) support. The metal-ligand complex has a structural formula (L)aM(Y)m(XR2)b, where M is a metal cation; each L is a neutral ligand or (?O); each Y is a halide or (C1-C20)alkyl; each XR2 is an anionic ligand in which X is a heteroatom or a heteroatom-containing functional group and R2 is (C1-C20)hydrocarbyl or (C1-C20) heterohydrocarbyl; n is 0, 1, or 2; m is 0-4; and b is 1-6. The metal-ligand complex is overall charge neutral. The heterogeneous procatalyst exhibits improved average molecular weight capability. A catalyst system includes the heterogeneous procatalyst and a cocatalyst. Processes for producing the heterogeneous procatalyst and processes for producing ethylene-based polymers utilizing the heterogeneous procatalyst are also disclosed.
Type:
Grant
Filed:
May 29, 2019
Date of Patent:
March 26, 2024
Assignee:
Dow Global Technologies LLC
Inventors:
Linfeng Chen, Mingzhe Yu, Mehmet Demirors, Andrew T. Heitsch, Jeffrey A. Sims, David Gordon Barton, Kurt F. Hirsekorn, Peter N. Nickias
Abstract: Embodiments of the present disclosure are directed towards methods of enhanced oil recovery from a subterranean reservoir, the method includes co-injecting a gas and a foam formulation into the subterranean reservoir, wherein the gas comprises steam and the foam formulation comprises a sulfonate composition, a glycol compound, and water.
Type:
Application
Filed:
October 8, 2020
Publication date:
March 21, 2024
Applicant:
Dow Global Technologies LLC
Inventors:
Biplab Mukherjee, Roxanne M. Jenkins, Matthew E. Crosley, Troy E. Knight
Abstract: The present disclosure provides for a machine direction oriented polyethylene (MDO-PE) film, a laminate comprising the MDO-PE film and a method of forming the MDO-PE film. The MDO-PE film includes a core layer comprising a first ethylene-based polymer a skin layer comprising a second ethylene-based polymer and a sub-skin layer in-between and in contact with the core layer and the skin layer. Each value for the density, peak melting point and percent crystallinity by weight increases from the core layer to the sub-skin layer and from the sub-skin layer to the skin layer. The MDO-PE film further includes predetermined values for a ratio of the percent crystallinity by weight of the core layer to the skin layer and a ratio of the peak melting point of the core layer to the skin layer. The MDO-PE film can be useful in food package, among other areas.
Abstract: A polymer/hydrophilic silica blend is provided comprising (a) a thickening polymer powder, comprising (i) structural units of C4-8 alkyl (meth)acrylate monomer; (ii) structural units of (meth)acrylic acid monomer, and (iii) structural units of a specialized associative monomer of formula (I) wherein R1 is a linear saturated C10-20 alkyl group; and n is an average of 20 to 28; and (b) a hydrophilic silica powder; wherein the weight ratio of hydrophilic silica powder to thickening polymer powder in the polymer/hydrophilic silica blend is 1:9 to 9:1. Also provided are personal care compositions containing same and methods of using same.
Type:
Grant
Filed:
April 16, 2020
Date of Patent:
March 19, 2024
Assignees:
Dow Global Technologies LLC, Rohm and Haas Company
Inventors:
Luqing Qi, Liang Chen, Lu Bai, Lyndsay M. Leal, David M. Meunier, Yunshen Chen, Fanwen Zeng
Abstract: A process for separating hydrogen from a gas mixture having hydrogen and a larger gas molecule is comprised of flowing the gas mixture through a carbonized polyvinylidene chloride (PVDC) copolymer membrane having a hydrogen permeance in combination with a hydrogen/methane selectivity, wherein the combination of hydrogen permeance and hydrogen/methane selectivity is (i) at least 30 GPU hydrogen permeance and at least 200 hydrogen/methane selectivity or (ii) at least 10 GPU hydrogen permeance and at least 700 hydrogen/methane selectivity. The carbonized PVDC copolymer may be made by heating and restraining a polyvinylidene chloride copolymer film or hollow fiber having a thickness of 1 micrometer to 250 micrometers to a pretreatment temperature of 100° C. to 180° C. to form a pretreated polyvinylidene chloride copolymer film and then heating and restraining the pretreated polyvinylidene chloride copolymer film to a maximum pyrolysis temperature from 350° C. to 750° C.
Type:
Grant
Filed:
April 15, 2021
Date of Patent:
March 19, 2024
Assignee:
Dow Global Technologies LLC
Inventors:
Junqiang Liu, Douglas E. Beyer, Janet M. Goss, Chan Han, Edward M. Calverley
Abstract: A curable coating composition is provided having multi-functionalized acrylic copolymer and silicone imine resin curing agents. The acrylic copolymer of the curable coating composition has, in polymerized form, epoxy functionalized groups and cure compatibility groups and the silicone imine forms an amino-functional silicone in the presence of water. The coating compositions are useful in the field of superior weatherable and durable coatings and are useful to replace isocyanate-containing polyurethane based coatings. Also provided are coated articles produced from the curable composition.
Type:
Grant
Filed:
July 17, 2019
Date of Patent:
March 19, 2024
Assignees:
Dow Global Technologies LLC, Dow Siliicones Corporation
Inventors:
Alan M. Piwowar, Ray E. Drumright, Erin B. Vogel, Gary M. Wieber, Patrick J. Fryfogle, Yanxiang Li, Susan M. Machelski, Paul J. Popa, Adam C. Tomasik, Gerald Lawrence Witucki
Abstract: Embodiments of the present disclosure are directed towards formulated polyol compositions that include a first polyether polyol having an average hydroxyl number from 112 to 280 mg KOH/g, a second polyether polyol having an average hydroxyl number from 18.5 to 51 mg KOH/g, a third polyether polyol having an average hydroxyl number from 20 to 70 mg KOH/g, and at least one of: fourth polyether polyol having an average hydroxyl number from 112 to 280 mg KOH/g; and a methoxypolyethylene glycol having an average hydroxyl number from 56 to 190 mg KOH/g.
Type:
Grant
Filed:
October 7, 2019
Date of Patent:
March 19, 2024
Assignee:
Dow Global Technologies LLC
Inventors:
Qinghao Meng, Lucie Porcelli, David J. Honkomp, Meagan Broadway, Morgan A. Springs, Paul Cookson, William L. Ritter, Anja Arlt
Abstract: In various embodiments, a bimodal polyethylene may include a high molecular weight component and a low molecular weight component. The bimodal polyethylene may have a density of from 0.933 g/cm3 to 0.960 g/cm3, a melt index (I2) of from 0.3 dg/min to 1.2 dg/min, and a melt flow ratio (MFR21) greater than 70.0. The high molecular weight component may have a density of from 0.917 g/cm3 to 0.929 g/cm3, and a high load melt index (I21) of from 0.85 dg/min to 4.00 dg/min. The bimodal polyethylene may include from 40 wt. % to 60 wt % of the high molecular weight component. Methods for producing the bimodal polyethylene and articles manufactured from the bimodal polyethylene are also provided.
Type:
Application
Filed:
January 27, 2022
Publication date:
March 14, 2024
Applicant:
Dow Global Technologies LLC
Inventors:
Mohamed Esseghir, Theo Geussens, Andrew T. Heitsch, Karl M. Seven, Stephanie M. Whited, Lalit A. Darunte, Mridula Kapur, John P. O'Brien
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:
Grant
Filed:
August 15, 2022
Date of Patent:
March 12, 2024
Assignee:
Dow Global Technologies LLC
Inventors:
Cornelis Biesheuvel, Adrianus C. De Kok, Hendrik L. Pelt, Wim M. Kamperman
Abstract: Described in embodiments herein are ionomers comprising a neutralized blend of an ethylene acid copolymer, an aliphatic and a mono-functional organic acid. The blend includes from 40 wt % to 95 wt % of the ethylene acid copolymer, from 5 to 50 wt % of the aliphatic, mono-functional organic acid, based on the total weight of the blend. The ethylene acid copolymer is the polymerized reaction product of ethylene, from 1 to 25 wt % of monocarboxylic acid and from 1 to 40 wt % of alkyl acrylate, based on the total weight of the monomers present in the ethylene acid copolymer. The aliphatic, mono-functional organic acid has fewer than 36 carbon atoms. In various embodiments, at least 70 mole % of total acid units are neutralized with both a trivalent cation and either a mono- or di-valent cation.
Abstract: Disclosed is a composition comprising at least one interpolymer dispersed within an aqueous medium, the interpolymer comprising at least one unsaturated monomer and at least one selected from the group consisting of at least one conjugated acid, at least one mono-ester of a conjugated acid, and mixtures thereof, and, optionally, at least one surfactant configured to stabilize the interpolymer within the aqueous medium. The conjugated acid may be derived from a naturally-occurring oil, such as tung oil. There is also provided a method for preparing a composition, comprising forming an interpolymer comprising the at least one unsaturated monomer and the at least one selected from the group consisting of at least one conjugated acid, at least one mono-ester of a conjugated acid, and mixtures thereof. There is still further provided a pressure sensitive adhesive comprising the composition prepared according to the disclosed method.
Type:
Grant
Filed:
August 12, 2016
Date of Patent:
March 12, 2024
Assignees:
Rohm and Haas Company, Dow Global Technologies LLC
Abstract: Ethylene-based polymers of this disclosure include a melt viscosity ratio (V0.1/V100) at 190° C. of at least 10, where V0.1 is the viscosity of the ethylene-based polymer at 190° C. at a shear rate of 0.1 radians/second, and V100 is the viscosity of the ethylene-based polymer at 190° C. at a shear rate of 100 radians/second; and a molecular weight tail quantified by an MWD area metric, ATAIL, and ATAIL is less than or equal to 0.04 as determined by gel permeation chromatography using a triple detector.
Type:
Grant
Filed:
September 27, 2019
Date of Patent:
March 12, 2024
Assignee:
Dow Global Technologies LLC
Inventors:
Teresita Kashyap, Robert D. J. Froese, Daniel J. Arriola
Abstract: A cast film inducing a bimodal ethylene-based polymer having a high density fraction (HDF) from 3.0% to 10.0%, an I10/I2 ratio from 5.5 to 7.0, a short chain branching distribution (SCBD) less than or equal to 10° C., a density from 0.910 g/cc to 0.920 g/cc, and a melt index (I2) from 1.0 g/10 mins to 8.0 g/10 mins.
Type:
Grant
Filed:
June 13, 2019
Date of Patent:
March 12, 2024
Assignee:
Dow Global Technologies LLC
Inventors:
Kyle E. Hart, Mehmet Demirors, Timothy W. Gambrel, Philip P. Fontaine, Vivek Kalihari, Hrishikesh R. Munj, Jon W. Hobson, Rajen M. Patel
Abstract: An automatic dishwashing composition is provided including a builder; a phosphonate; a nonionic surfactant; and a dispersant polymer, comprising: structural units of formula I wherein each R1 is independently selected from a hydrogen and a —C(O)CH3 group; and structural units of formula II wherein each R2 is independently selected from a hydrogen and a —CH3 group; and wherein the automatic dishwashing composition contains ?0.1 wt % of dispersant polymer having a lactone end group and wherein the dispersant polymer has a weight average molecular weight of 1,500 to 10,000 Daltons.
Type:
Grant
Filed:
October 8, 2019
Date of Patent:
March 5, 2024
Assignees:
Dow Global Technologies LLC, Rohm and Haas Company
Inventors:
Scott Backer, Marianne Creamer, Randara Pulukkody, Severine Ferrieux
Abstract: According to one embodiment, an ionomer includes a neutralized blend of an ethylene acid copolymer. The ethylene acid copolymer comprises the polymerized reaction product of ethylene; from 2 to 20 wt. % of monocarboxylic acid monomer based on the total wt. % of the monomers present in the ethylene acid copolymer; from 2 to 15 wt. % of unsaturated dicarboxylic acid monomer based on the total wt. % of the monomers present in the ethylene acid copolymer. In the ionomer 10 to 60% of total acid units of the ethylene acid copolymer are neutralized by a magnesium cation.
Abstract: A sealing composition for use in unit dose packages is provided, including: 70 to 98 wt % water; 1 to 30 wt % of a hydrogen bonding component; and 1 to 30 wt % of a complex forming component.
Type:
Grant
Filed:
April 19, 2018
Date of Patent:
March 5, 2024
Assignees:
Dow Global Technologies LLC, Rohm and Haas Company
Inventors:
Gyongyi Gulyas, An Kaga, Thomas Fitzgibbons, Afua Sarpong Karikari, Michael C. Mitchell, Xin Jin, Joseph Kao
Abstract: A method of producing a polyether polyol includes reacting a low molecular weight initiator with ethylene oxide in the presence of a polymerization catalyst, and the low molecular weight initiator has a nominal hydroxyl functionality at least 2. The polymerization catalyst is a Lewis acid catalyst having the general formula M(R1)1(R2)1(R3)1(R4)0 or 1, whereas M is boron, aluminum, indium, bismuth or erbium, R1, R2, R3, and R4 are each independent, R1 includes a fluoroalkyl-substituted phenyl group, R2 incudes a fluoroalkyl-substituted phenyl group or a fluoro/chloro-substituted phenyl group, R3 includes a fluoroalkyl-substituted phenyl group or a fluoro/chloro-substituted phenyl group, and optional R4 includes a functional group or functional polymer group, R1 being different from at least one of R2 and R3.
Type:
Grant
Filed:
September 14, 2018
Date of Patent:
February 27, 2024
Assignee:
Dow Global Technologies LLC
Inventors:
Arjun Raghuraman, William H. Heath, Sukrit Mukhopadhyay, Heather A. Spinney, David R. Wilson