Abstract: A method for operating an acetylene hydrogenation unit in an integrated steam cracking-fluidized catalytic dehydrogenation (FCDh) system may include separating a cracked gas from a steam cracking system and an FCDh effluent from an FCDh system into a hydrogenation feed and an acetylene-depleted stream, the hydrogenation feed comprising at least hydrogen, CO, and acetylene. During normal operating conditions, at least 20% of the CO in the hydrogenation feed is from the cracked gas. The method may include contacting the hydrogenation feed with an acetylene hydrogenation catalyst to hydrogenate at least a portion of the acetylene in the hydrogenation feed to produce a hydrogenated effluent. The steam cracking is operated under conditions that increase CO production such that a concentration of CO in the cracked gas is great enough that when a flowrate of the FCDh effluent is zero, a CO concentration in the hydrogenation feed is at least 100 ppmv.
Type:
Application
Filed:
June 8, 2020
Publication date:
July 21, 2022
Applicant:
Dow Global Technologies LLC
Inventors:
Lin Luo, Hangyao Wang, Yu Liu, Matthew T. Pretz, Andrzej Malek
Abstract: The disclosure generally relates to 3D printed articles prepared from filaments comprising an ionomer (A) prepared from a base resin (B); wherein: base resin (B) is prepared from ethylene and at least one C3 to C8 ?,? ethylenically unsaturated carboxylic acid monomer; the carboxylic acid moieties of base resin (B) are 10 to 99.5 percent neutralized by zinc or lithium; the at least one C3 to C8 ?,? ethylenically unsaturated carboxylic acid is present from about 2 weight percent to about 30 weight percent, based on the weight of base resin (B).
Abstract: Alkoxylated hydrophobes that include a poly(alkylene oxide) chain of at least 5 oxyalkylene units having a terminal secondary hydroxyl group or a terminal C1-8 hydrocarbyl group are effective internal mold release agents for epoxy resin moldings. The alkoxylated hydrophobe, when mixed with an epoxy resin, forms a mixture that is highly stable when heated to 80 to 100° C. and held at that temperature for a period of as much as 22 days.
Type:
Grant
Filed:
August 3, 2017
Date of Patent:
July 19, 2022
Assignee:
Dow Global Technologies LLC
Inventors:
Aikaterini Tsoutsoura, Timothy A. Morley, Rainer Koeniger, Rene P. Geiger, Luis G. Madrigal, Luca Lotti, Nebojsa Jelic, Zeljko Sikman, Evelyn A. Zaugg-Hoozemans, Martin R. Greaves
Abstract: A method for preparing C2 to C5 paraffins including introducing a feed stream of hydrogen gas and a carbon-containing gas selected from carbon monoxide, carbon dioxide, and mixtures thereof into a reaction zone of a reactor. Converting the feed stream into a product stream that includes C2 to C5 paraffins in the reaction zone in the presence of a hybrid catalyst. The hybrid catalyst including a microporous catalyst component; and a metal oxide catalyst component. The metal oxide catalyst component including a metal component present on a metal oxide support material. The metal oxide support material includes at least one oxide of a metal selected from Group 4 of the IUPAC periodic table of elements. The product stream has a C3/C2 carbon molar ratio greater than or equal to 4.0.
Type:
Application
Filed:
May 7, 2020
Publication date:
July 14, 2022
Applicant:
Dow Global Technologies LLC
Inventors:
Alexey Kirilin, Adam Chojecki, Joseph F. Dewilde, Glenn Pollefeyt, Davy L.S. Nieskens, Andrzej Malek
Abstract: Embodiments of the present disclosure are specifically related to LLDPE compositions produced from heterogeneous procatalyst compositions and blown and cast films incorporating these LLDPE compositions.
Type:
Application
Filed:
May 29, 2020
Publication date:
July 14, 2022
Applicant:
Dow Global Technologies LLC
Inventors:
Teresa P. Karjala, Kurt F. Hirsekorn, Marlos Giuntini de Oliveira, Gregory J. Brennan, Elva L. Lugo, Yongchao Zeng, Brayden E. Glad, Jon W. Hobson, Linfeng Chen
Abstract: Embodiments of the present disclosure are directed towards method of making a metal-ligand complex, the method including: reacting a (L1)H compound and a base in a primary solvent to make a reaction mixture comprising an intermediate anionic L1 compound in the primary solvent; and reacting the intermediate anionic L1 compound and a L2MX3 complex to make a L1L2MX2 complex, wherein L1 and L2 independently are cyclopentadienyl-type (Cp-type) ligands, M is zirconium or hafnium, and each X is a halide and wherein the intermediate anionic L1 compound is not isolated from the reaction mixture.
Abstract: An organic/oil mixture used in an emulsion to form micro-capsules of the present disclosure. The organic/oil mixture includes abamectin; a non-polar solvent having a polarity (P) value of a Hansen solubility parameter of 0 to 3; a polar solvent of Formula (I): where R1 is a C1 to C15 alkyl; R2 is either H or a C1 to C8 alkyl; R3 is a C1 to C15 alkylene; and R4 is a C1 to C15 alkyl, where a sum of carbons in the R1, R2, R4 alkyls and R3 alkylene is 8 to 30; and 2.5 to 20 wt. % of an isocyanate, where each wt. % is based on the total weight of the organic/oil mixture and the sum of the wt. % of the abamectin, the non-polar solvent, the polar solvent and the isocyanate totals 100 wt. %.
Abstract: The invention provides a composition comprising the following components: A) a first composition, wherein the first composition comprises a first ethylene-based polymer and a second ethylene-based polymer, and wherein the ratio of the “high load melt index (I21) of the first composition” to the “high load melt index (I21) of the first ethylene-based polymer” is greater than, or equal to, 40, and B) one or more azide compounds present in an amount greater than, or equal to, 50 ppm, based on the weight of the first composition.
Type:
Grant
Filed:
February 10, 2014
Date of Patent:
July 12, 2022
Assignee:
Dow Global Technologies LLC
Inventors:
Stephanie M. Whited, Troy M. Tambling, Mridula Kapur, Sarah E. Patterson, Dane Chang, William J. Michie, Jr.
Abstract: A foam control agent comprising a linear polyorganosiloxane-polyoxyalkylene block copolymer comprising a single block of polyorganosiloxane having a DP of from 10 to 200 and a single block polyoxyalkylene block having a DP of from 2 to 60.
Type:
Grant
Filed:
April 6, 2020
Date of Patent:
July 12, 2022
Assignees:
Dow Silicones Corporation, Dow Global Technologies LLC
Inventors:
Jacqueline L'Hostis, Xiao Meng, Oguz Türünç, Hatice Turgut
Abstract: Embodiments of polymer compositions and articles comprising such compositions containing at least one LDPE and at least one multimodal ethylene-based polymer having at least three ethylene-based components.
Type:
Grant
Filed:
December 19, 2018
Date of Patent:
July 12, 2022
Assignee:
Dow Global Technologies LLC
Inventors:
Mehmet Demirors, Yijian Lin, Didem Oner-Deliormanli, Arnaldo T. Lorenzo, David T. Gillespie, Carl N. Iverson
Abstract: A stable aqueous dispersion of multi-stage polymeric particles comprising a polymer and an oligomer, and an aqueous freeze-thaw stable coating composition comprising the aqueous dispersion providing coatings made therefrom with acceptable scrub resistance.
Type:
Grant
Filed:
July 10, 2018
Date of Patent:
July 12, 2022
Assignees:
Dow Global Technologies LLC, Rohm and Haas Company
Inventors:
Han Liu, Dan Liu, Qingwei Zhang, Zhi Juan Gong, Xiangting Dong, Ling Li, Han Lv
Abstract: Embodiments of thermoformed monolayer or multilayer films are provided, wherein the thermoformed monolayer multilayer films comprise a first composition comprising at least one ethylene-based polymer, wherein the first composition comprises a Molecular Weighted Comonomer Distribution Index (MWCDI) value greater than 0.9, and a melt index ratio (I10/I2) that meets the following equation: I10/I2?7.0?1.2×log (I2).
Type:
Grant
Filed:
September 19, 2018
Date of Patent:
July 12, 2022
Assignees:
Dow Global Technologies LLC, PBBPolisur S.R.L.
Inventors:
Maria Laura Perez Muñoz, João Gargalaka, Jr., Nicolas Cardoso Mazzola, Gianna Buaszczyk, Carmelo Declet Perez, Sydney E. Hansen
Abstract: Catalyst compositions are prepared by contacting a palladium source and 1,3,5,7-tetramethyl-6-(2,4-dimethoxyphenyl)-2,4,8-trioxa-6-phosphaadamantane and a methoxyocta-diene compound, in a primary aliphatic alcohol, under suitable conditions including a ratio of equivalents of palladium to equivalents of 1,3,5,7-tetramethyl-6-(2,4-dimethoxyphenyl)-2,4,8-trioxa-6-phosphaadamantane ranging from greater than 1:1 to 1:1.3. The result is a complex of palladium, a 1,3,5,7-tetramethyl-6-(2,4-dimethoxyphenyl)-2,4,8-trioxa-6-phosphaada-mantane ligand, and a ligand selected from a methoxyoctadiene ligand, an octadienyl ligand, or a protonated octadienyl. Such complexes may, in solution, exhibit surprising solubility and storage stability and are useful in the telomerization of butadiene, which is a step in the production of 1-octene.
Abstract: Processes of synthesizing long-chain branched polymers. The processes include contacting together one or more C2-C14 alkene monomers, at least one diene, optionally a solvent, and a multi-chain catalyst optionally in the presence of hydrogen, wherein the multi-chain catalyst comprises a plurality of polymerization sites; producing at least two polymer chains of the C2-C14 alkene monomers, each polymer chain polymerizing at one of the polymerization sites; synthesizing the long-chain branched polymers by connecting the two polymer chains with the diene, the joining of the two polymer chains being performed in a concerted manner during the polymerization; and producing tri-functional long chain branches from the diene, wherein the tri-functional long chain branches occur at a frequency of at least 0.03 per 1000 carbon atoms.
Type:
Application
Filed:
March 27, 2020
Publication date:
July 7, 2022
Applicant:
Dow Global Technologies LLC
Inventors:
Robert D.J. Froese, Bryan Stubbert, Daniel Arriola, Rachel E. M. Brooner, Oscar D. Redwine
Abstract: A biaxially-oriented polyethylene (BOPE) multilayer film comprises a skin layer with a matte surface and a core, the skin layer with a matte surface comprising, in weight percent (wt %) based upon the weight of the skin layer: (1) from 20 to 80 wt % of an ethylene-based polymer, and (2) from 80 to 20 wt % of a propylene-based polymer; each of the ethylene-based polymer and the propylene-based polymer having a storage modulus, with a difference between the storage modulus of the ethylene-based polymer and the propylene-based polymer of greater than 40 megaPascals (MPa) at 110° C., and greater than 18 MPa at 120° C.
Type:
Grant
Filed:
May 17, 2019
Date of Patent:
July 5, 2022
Assignee:
Dow Global Technologies LLC
Inventors:
Gang Wang, Xiaobing Yun, Jianping Pan, Jingyi Xu
Abstract: A method for separating CO2 from C2 to C5 alkanes includes introducing a first stream including C2 to C5 alkanes and CO2 into a first separation zone, the first separation zone including a hydrocarbon solvent, and separating the first stream into a recycle stream and a second stream in the first separation zone. The recycle stream including CO2 and one or more of CO, H2, and CH4, and the second stream including C2 to C5 alkanes. The method further includes introducing the second stream into a second separation zone, and separating the second stream into a third stream and a fourth stream, wherein the third stream includes C2 alkanes and the fourth stream includes C3 to C5 alkanes.
Type:
Grant
Filed:
April 25, 2018
Date of Patent:
July 5, 2022
Assignee:
Dow Global Technologies LLC
Inventors:
Barry Brent Fish, Peter E. Groenendijk, Andrzej Malek, Davy L. S. Nieskens, Brien A. Stears
Abstract: The present disclosure provides a composition comprising: (A) a polypropylene polymer; (B) a polyolefin elastomer; (C) an acetoacetyl functional polymer; (D) an optional additive component; and (E) an optional compatibilizer. The present disclosure also provides an article made from the composition.
Abstract: A method to produce a tile comprising at least the following layered sections: a wear layered section, a decor layered section and a base layered section; and wherein the wear layered section comprises the following: A) a compositional layer A formed from a composition A comprising at least one olefin-based polymer; wherein the decor layered section comprises the following: B1) a compositional layer B1 formed from a composition B1 comprising a propylene-based polymer; B2) a compositional layer B2 formed from a composition B2 comprising an olefin-based polymer; wherein the base layered section comprises the following: C) a compositional layer C formed from a composition C comprising an olefin-based polymer; wherein the method comprises the following step(s): i) heat laminating compositional layer A to compositional layer B1, at a temperature T1?140° C.
Type:
Grant
Filed:
August 16, 2018
Date of Patent:
July 5, 2022
Assignee:
Dow Global Technologies LLC
Inventors:
Yushan Hu, Ronald J. Weeks, Mark T. Jablonka, Lizhi Liu
Abstract: A copolymerized crystalline latent catalyst including the reaction product of: (a) at least one crystalline acrylate monomer; (b) at least one copolymerizable catalyst compound; (c) at least one initiator; (d) at least one chain transfer agent; and (e) optionally, at least one solvent to provide a polymerized latent catalyst composition; and a process for making the above latent catalyst.
Abstract: A composition comprising a surfactant blend, comprising: a polyethylene glycol, wherein the polyethylene glycol has an average molecular weight of from 5,000 g/mol to 9,000 g/mol; a first ethoxylated alcohol comprising the formula R—O(EO)n—H, where R is an alkyl, alkenyl, aryl, aralkyl, or heterocyclic group having 7-25 carbons, where (EO) is a polyoxyethylene chain and where n is from 3 to 9, wherein the first ethoxylated alcohol has a Pour Point below 23° C.; and a second ethoxylated alcohol comprising the formula R—O(EO)m—H, where R is an alkyl, alkenyl, aryl, aralkyl, or heterocyclic group having 7-25 carbons, where (EO) is a polyoxyethylene chain and where m is from 12 to 20, wherein the second ethoxylated alcohol has a Pour Point at or above 23° C., further wherein the first ethoxylated alcohol is from 20 wt % to 80 wt % of a total weight of the surfactant blend.
Type:
Grant
Filed:
April 21, 2020
Date of Patent:
June 28, 2022
Assignee:
Dow Global Technologies LLC
Inventors:
Michael P. Tate, Jeffrey D. Michalowski, Christopher J. Tucker