Patents Assigned to The Dow Chemical
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Publication number: 20230312969Abstract: The present invention is a composition comprising an aqueous dispersion of polymer particles, polymeric organic crosslinked microspheres, and colloidal silica particles. The composition is useful in coating compositions for exterior applications to achieve a balance of excellent dirt pickup resistance and durability performance under accelerated testing conditions.Type: ApplicationFiled: July 31, 2020Publication date: October 5, 2023Applicant: The Dow Chemical CompanyInventors: Caifeng Wang, Jianming Xu, Kok Chiew Poh, Yuehan Hu, Tao Wang, Juan F. Callejas, Philip R. Harsh, James C. Bohling, Andrew J. Swartz, Partha S. Majumdar, Joseph Tanzer
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Patent number: 11746465Abstract: A process of making a synthetic leather includes (i) first, contacting a textile with an aqueous solution containing a cationic hydroxyethylcellulose polymer to form a modified textile component; (ii) subsequently, impregnating the modified textile component with an aqueous polyurethane dispersion externally stabilized with an anionic surfactant; and (iii) precipitating the polyurethane in the modified textile component. And a synthetic leather formed by the process.Type: GrantFiled: August 21, 2018Date of Patent: September 5, 2023Assignee: The Dow Chemical CompanyInventors: Xiangyang Tai, Zhaohui Qu, Ruijun Zhao, Yunlong Guo, Xiaoyi Pang
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Patent number: 11746265Abstract: A solvent-based two-component adhesive composition is disclosed. The adhesive composition comprises an isocyanate component and a polyol component. One or both of the isocyanate component and polyol component comprises at least one butylene oxide-based polyol. The at least one butylene oxide-based polyol can be selected from the group consisting of a polybutylene oxide polyols, polybutylene oxide-propylene oxide copolymer polyols, polybutylene oxide-polyethylene oxide copolymer polyols, and combinations of two or more thereof. A method for forming a laminate is also disclosed. The method comprises forming an adhesive composition, the composition comprising at least one polyol comprising at least one butylene oxide-based polyol, applying a layer of the adhesive composition to a surface of a film, bringing the layer into contact with a surface of another film to form a laminate, and curing the adhesive composition. A laminate formed by this method is also disclosed.Type: GrantFiled: May 22, 2017Date of Patent: September 5, 2023Assignee: The Dow Chemical CompanyInventors: Mikhail Y. Gelfer, Rui Xie, Jonathan Barrus
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Patent number: 11746266Abstract: A two-component solventless polyurethane adhesive composition including (A) at least one isocyanate component and (B) at least one polyol component. The isocyanate component (A) comprises an isocyanate prepolymer that is the reaction product of (Ai) a polyisocyanate and (Aii) an isocyanate-reactive component; wherein the isocyanate-reactive component comprises (Aiia) at least one polyol having a functionality greater than two, (Aiib) at least one aromatic polyester polyol having a functionality of greater than two, and (Aiic) at least one hydrophobic polyol. The polyol component (B) comprises (Bi) at least one polyether polyol having a functionality greater than two, (Bii) at least one aromatic polyester polyol transesterified with a natural oil, and (Biii) at least one phosphate ester polyol.Type: GrantFiled: October 12, 2020Date of Patent: September 5, 2023Assignee: The Dow Chemical CompanyInventors: Yinzhong Guo, Juan Carlos Casarrubias, Kevin K. Miyake, Mateus Batista Torres Cipro, Elkin David Cardona Jimenez
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Patent number: 11581527Abstract: The process of making a lithium ion battery cathode comprises the step of forming a slurry of an active material, a nano-size conductive agent, a binder polymer, a solvent and a dispersant. The solvent consists essentially of one or more of a compound of Formula 1, 2, or 3, and the dispersant comprises an ethyl cellulose.Type: GrantFiled: April 27, 2018Date of Patent: February 14, 2023Assignees: Dow Global Technologies LLC, Dow Chemical Korea LimitedInventors: Xin Jiang, Qi Jiang, Hua Ren, Jianhai Mu, Eungkyu Kim, Kaoru Ohba, Jong-Cheol Kim, Zhuo Wang
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Patent number: 11326043Abstract: This invention provides a composition comprising a natural rubber, a polybutadiene rubber and an ethylene/?-olefin copolymer and/or ethylene/?-olefin multiblock copolymer. The invention also provides for methods of making the composition, and articles prepared from the composition.Type: GrantFiled: August 28, 2018Date of Patent: May 10, 2022Assignee: Dow Chemical Korea LimitedInventor: Heung Goo Lee
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Publication number: 20190366695Abstract: A multilayer cast film includes a cling layer, a release layer, and at least one core layer disposed between and contacting the cling layer and the release layer. The cling layer includes an ultra low density polyethylene (ULDPE), a propylene interpolymer, or blends thereof. The release layer includes a first linear low density polyethylene (first LLDPE) having a density of from 0.915 to 0.938 g/cc and a melt index of from 0.5 g/10 min to 10 g/10 min. Each of the core layers includes a second linear low density polyethylene (second LLDPE) having a density of from 0.905 to 0.930 g/cc and a melt index of from 0.5 g/10 min to 10 g/10 min. The multilayer cast film includes from 3 wt % to 7 wt %, based on a total amount of polymers present in the multilayer cast film, of the low density polyethylene (LDPE).Type: ApplicationFiled: January 19, 2018Publication date: December 5, 2019Applicants: Dow Global Technologies LLC, Dow Chemical (Malaysia) Sdn. Bhd., PT Dow IndonesiaInventors: Edward L. Lee, Eng Kian Ma, Rajen M. Patel, Peter Yap, Hwee Lun Goh, Adit Pradhana Jayusman Setyogroho
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Patent number: 10150275Abstract: A multi-layer structure comprising: (a) a skin layer comprising at least 50% by weight of an ethylene/?-olefin interpolymer composition (LLDPE) having a Comonomer Distribution Constant (CDC) in the range of from 45 to 400, and wherein the skin layer does not contain any migratory additive; (b) a metal layer disposed on the skin layer to form a metalized film; and (c) at least one substrate layer laminated onto the metallized film; wherein the ethylene/?-olefin interpolymer composition comprises (i) less than or equal to 100 percent by weight of the units derived from ethylene; and (ii) less than 30 percent by weight of units derived from one or more ?-olefin comonomers is provided.Type: GrantFiled: July 2, 2013Date of Patent: December 11, 2018Assignees: Dow Global Technologies LLC, Dow Chemical (Malaysia) Sdn. Bhd., Dow Chemical IMEA GmbHInventors: Prajwal Shah, Shashibhushan S. Mishra, Tamanna Duggal, Prashant Mogre, Eng Kian Ma
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Patent number: 10125536Abstract: In a method of supplying an element for covering a non-vision area in a curtain wall on an architectural structure, a plurality of shadow boxes is prefabricated at a location remote from both a unitized curtain wall assembly shop and the architectural structure. The shadow boxes are prefabricated by sealing an interior spacer between a vision glass panel and a back structure. The back structure includes an insulating material surrounded by a rigid envelope. The vision glass panel, the back structure and the interior spacer define a hermetically sealed void therein. A structural seal is applied about the interior spacer and is affixed to the peripheral edge of the vision glass, the interior spacer and the back structure. The plurality of shadow boxes is then delivered to a selected one of the unitized curtain wall assembly shop and the architectural site.Type: GrantFiled: January 18, 2016Date of Patent: November 13, 2018Assignees: Rainlight Studio LLC, Dow Chemical CompanyInventors: Stephen Weinryb, Neil McClelland
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Publication number: 20180162990Abstract: A two-component curable epoxy resin system including a dye solution. The resin system includes an epoxy resin component containing at least 80% by weight of a polyglycidyl ether of a polyphenol. The system also includes a hardener mixture containing mainly polyethylene tetraamines. The system includes triethylene diamine in specific amounts as a catalyst. The system has beneficial curing characteristics with desired color that make it useful for producing fiber-reinforced composites in a resin transfer molding process.Type: ApplicationFiled: June 22, 2016Publication date: June 14, 2018Applicant: The Dow Chemical CompanyInventors: Timothy A. Morley, Rainer Koeniger, Martin Reimers, Peter J. Cate, Nebojsa Jelic, Zeljko Sikman
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Patent number: 9902527Abstract: A coated fabric (11), comprising a fabric (12) from polymer tapes (12a, 12b), wherein the fabric (12) is coated with a sealing layer (13), wherein • at least a portion of the polymer tapes (12a, 12b) have a breaking tenacity of less than 45 cN/tex, preferably 15 to 40 cN/tex and an elongation at break of more than 30%, preferably of 40 to 90%, and/or • wherein the sealing layer (13) is formed from a composition A comprising at least one ethylene/?-olefin interpolymer, and wherein the composition has a density from 0.905 to 0.930 g/cc, preferably from 0.910 to 0.Type: GrantFiled: October 18, 2011Date of Patent: February 27, 2018Assignees: DOW CHEMICAL IBERICA S.L., HAVER & BOECKER OHG, STARLINGER & CO GESELLSCHAFT M.B.H.Inventors: Maria Isabel Arroyo Yillan, Thomas Schütte, Franz Schneider
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Publication number: 20170174567Abstract: The present invention provides substantially nonionic brush polymers having pendant polyether groups, preferably poly(alkylene glycol) groups, which polymers are useful as synthetic polymer substitutes for cellulose ethers in mortars and hydraulic binders. The brush polymers are preferably crosslinked, such as with ethylene glycol di(meth)acrylates.Type: ApplicationFiled: March 27, 2015Publication date: June 22, 2017Applicants: Dow Europe GmbH, Dow Wolff Cellulosics GmbH & Co. OHG, The Dow Chemical CompanyInventors: Robert Baumann, Adam W. Freeman, Philip M. Imbesi, Marc Schmitz, Hongwei Shen, Wei-Wen Tsai, Sipei Zhang
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Publication number: 20170107149Abstract: The present invention provides aqueous compositions that are stable after at least a 24 hour period comprising a polysaccharide viscosity modifying additive and more than 60 wt. %, based on the weight of total solids in the compositions of one or more polycarboxylate ether, the compositions comprising an acid chosen from an organic acid having 1 hydroxy group or less, a strong acid containing a single hydrogen, an ascorbic acid, and mixtures thereof, the compositions having a pH of less than the pH of the polycarboxylate ether itself, or from 1.0 to 6.0. The present invention enables stable concentrates of aqueous polycarboxylate ethers and polysaccharide viscosity modifying agents for use in hydraulic binder applications, the compositions having a total solids content of 10 wt. % to as high as 65 wt. %.Type: ApplicationFiled: March 27, 2015Publication date: April 20, 2017Applicants: Dow Europe GmbH, Dow Wolff Cellulosics GmbH & Co. OHG, The Dow Chemical CompanyInventors: Robert Baumann, Marc Schmitz, Anette Wagner
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Publication number: 20170037266Abstract: The present invention is a composition comprising a stable aqueous dispersion of polymer particles and a sorbate ester, which is a liquid at 20° C. and has a molecular weight in the range of 125 to 500 g/mol. The composition of the present invention provides a way to enhance film formation of coatings prepared using relatively high Tg latexes without the aid of high volatile organic content (VOC) coalescents.Type: ApplicationFiled: April 16, 2014Publication date: February 9, 2017Applicants: The Dow Chemical Company, Dow Chemical (China) Investment Company LimitedInventors: Steven Arturo, Selvanathan Arumugam, Kebede Beshah, David Conner, John Ell, Ralph C. Even, Fujun Lu, Bo Lu, Brandon Rowe, Justin Sparks, Jianping Xu, Jiguang Zhang
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Publication number: 20170022402Abstract: An epoxy adhesive composition is provided that has superior wash-off resistance after pre-gelling, and may be used, for example, in manufacturing processes, for example, in the automobile industry. The composition also provides unique viscosity profile after pre-gelling to significantly reduce failure mode in subsequent processing steps. In preferred embodiments the adhesive composition comprises an epoxy type resin and a gelling agent selected from polyesterdiols and polyvinyl butyrals.Type: ApplicationFiled: March 19, 2015Publication date: January 26, 2017Applicants: Dow Europe GmbH, Dow Deutschland Vertriebs GmbH & Co. OHG, The Dow Chemical CompanyInventors: Andreas Lutz, Jeannine Flueckiger, Benjamin Alexander Haag, Regina Ditschuneit
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Publication number: 20160369038Abstract: A new polyurethane (PU) adhesive composition having unique properties in automotive related applications such as composite bonding.Type: ApplicationFiled: July 24, 2014Publication date: December 22, 2016Applicants: Dow Europe GmbH, The Dow Chemical CompanyInventors: Andreas A. Lutz, Daniel Schneider, Stefan Schmatloch, Ilona Caderas
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Publication number: 20160280951Abstract: The present invention provides aqueous polyolefin dispersion compositions for use in metal coatings, such as can coatings, comprising one or more polyolefin base polymer, one or more at least partially neutralized olefinic stabilizing agent having an acid number (AN) of from 80 to 250, preferably, a polyolefin stabilizing agent, such as an olefin-carboxylic acid copolymer or a blend of two such polymers, an optional coupling agent having an acid number (AN) of from 10 to 70 and a melt index of from 500 to 5,000,000 grams of polymer melt passing in 10 minutes through a heated syringe or cylinder at 190° C. with a plunger loaded with 2.16 kg, preferably, a polymer, and a hindered phenolic antioxidant containing an ester linkage dispersed in the polyolefin dispersion composition.Type: ApplicationFiled: March 9, 2016Publication date: September 29, 2016Applicants: Dow MF Produktions GmbH & Co. OHG, The Dow Chemical CompanyInventors: Ray E. Drumright, Bernhard Kainz, Richard A. Lundgard, Cynthia Stants, Houxiang Tang, Jeffrey Wilbur
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Publication number: 20160251507Abstract: A novel polymer mixture having fast drying time, a multilayer article comprising at least two layers of the dried polymer mixture and having good mechanical properties, water resistance and weatherability, and a method of preparing the multilayer article.Type: ApplicationFiled: October 11, 2013Publication date: September 1, 2016Applicant: Dow Chemical (China) Investment Company LimitedInventors: Liang Zhang, Jingui Jiang, Yongchun Chen, Yan Li, Wei Li
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Patent number: 9404005Abstract: The disclosure provides a process for producing a material with improved breakdown strength. The process includes heating a polymeric composition composed of a low density polyethylene (LDPE) and a minority amount of a high density polyethylene (HDPE). The polymeric composition is heated to at least the melting temperature of the HDPE. The process includes control-cooling the heated polymeric composition at a cooling rate from 0.1° C./min to 20° C./min, and forming a polymeric composition. The control-cooled polymeric composition has a unique morphology which improves breakdown strength. Also provided is a coated conductor with an insulating layer composed of the polymeric composition with the unique morphology. The insulating layer exhibits improved breakdown strength.Type: GrantFiled: September 23, 2011Date of Patent: August 2, 2016Assignees: Dow Global Technologies LLC, Dow Chemical Company Limited, University of Southampton, GnoSys Global Ltd.Inventors: Simon Sutton, Theo E. Geussens, Alun Vaughan, Gary Stevens
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Patent number: 9334374Abstract: Polymer blends of polypropylene homopolymer and propylene-?-olefin interpolymer. Processes for producing polymeric compositions comprising control-cooling heated blends of polypropylene and propylene-?-olefin interpolymer. Such polymeric compositions can be employed in forming coated wires and cables.Type: GrantFiled: February 22, 2013Date of Patent: May 10, 2016Assignees: Dow Global Technologies LLC, Dow Chemical Company Limited, University of Southhampton, GnoSys Global Ltd.Inventors: Simon Sutton, Theo E. Geussens, Alun Vaughan, Gary Stevens