Patents by Inventor Dwight Latham
Dwight Latham has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20200291166Abstract: A curable resin composition comprising: (1) a urethane (meth)acrylate; (2) a reactive diluent selected from the group consisting of i) a hydroxyl alkyl (meth)acrylate monomer where the acrylate group, which is attached to the carbonyl group, is attached to a hydrogen or a methyl group and the carbonyl group is attached to the hydroxyl group thru an R2 alkylene group containing 2 to 18 carbon atoms per molecule.Type: ApplicationFiled: March 1, 2017Publication date: September 17, 2020Inventors: Huifeng Qian, Muhammad A Shafi, Luigi Pellacani, Harshad M. Shah, Dwight Latham, Qiuyun Xu, William L. Heaner, Emanuele Maiocchi
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Patent number: 10294391Abstract: A method for exposing a substrate to water under superatmospheric pressure at a temperature of at least 70° C. includes (a) applying a reaction mixture to a substrate, which reaction mixture has an isocyanate index of at least 10 and includes an aromatic polyisocyanate component, a polyol component having a polyol with a hydroxyl equivalent weight of at least 500, and a catalyst component having an isocyanate trimerization catalyst, and at least partially curing the reaction mixture to form a polyisocyanurate or polyurethane-isocyanurate polymer having a glass transition temperature of at least 80° C., and (b) exposing the substrate and the polyisocyanurate or polyurethane-isocyanurate polymer to water under superatmospheric pressure at a temperature of at least 70° C.Type: GrantFiled: July 9, 2014Date of Patent: May 21, 2019Assignee: Dow Global Technologies LLCInventors: Kaoru Aou, Juan Carlos Medina, Rajesh P. Paradkar, Dwight Latham, Michelle Tipps-Thomas
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Patent number: 10150834Abstract: A method for making joints in an electrical cable is disclosed. A first cable having polymeric insulation and a first bare conductor end and a second cable having polymeric insulation and a second bare conductor end are provided and joined create a conductor joint. A curable reaction mixture is applied over the conductor joint and cured to form a polymeric insulating sheath over the conductor joint and bonded to the polymeric insulation of each of the first and second cables. The reaction mixture includes a carbon-Michael acceptor compound, a carbon-Michael donor compound and a carbon-Michael reaction catalyst.Type: GrantFiled: August 16, 2014Date of Patent: December 11, 2018Assignee: Dow Global Technologies LLCInventors: Nicole Knight, Dwight Latham, Nathan Wilmot
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Patent number: 9796895Abstract: Embodiments of the present disclosure are directed towards using a carbon-Michael compound. As an example, a method of using a carbon-Michael compound to reduce heat transfer can include locating the carbon-Michael compound between a heat provider and a heat receptor, where the carbon-Michael compound is a reaction product of a multifunctional acrylate compound with a multifunctional Michael donor, and the heat provider has a temperature from 100 C to 290 C.Type: GrantFiled: September 26, 2013Date of Patent: October 24, 2017Assignee: Dow Global Technologies LLCInventors: Xin Jin, Dwight Latham, Steven Crain, Mark Sonnenschein
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Patent number: 9546307Abstract: Embodiments of the invention provide for polyurethane-based sealants. The sealants include a reaction product of a reaction system which includes at least one isocyanate, and at least one polyester polyol. The polyester polyol includes a reaction product of a polyester reaction mixture which includes one or more hydrophobic monomers, one or more organic diacids or methyl esters thereof, and one or more diols.Type: GrantFiled: September 26, 2012Date of Patent: January 17, 2017Inventors: Bindu Krishnan, Dwight Latham, Laura A. Grier, Woo-Sung Bae, Hector Perez, Jorge Jimenez, William A. Koonce
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Publication number: 20160204584Abstract: Joints in an electrical cable are made by joining the ends of the conductors of two cables and applying and then curing a reaction mixture over the joint to form an elastomeric seal. The reaction mixture includes a carbon-Michael acceptor compound, a carbon-Michael donor compound and a carbon-Michael reaction catalyst.Type: ApplicationFiled: August 16, 2014Publication date: July 14, 2016Inventors: Nicole Knight, Dwight Latham, Nathan Wilmot
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Publication number: 20160122582Abstract: A method for exposing a substrate to water under superatmospheric pressure at a temperature of at least 70° C. includes (a) applying a reaction mixture to a substrate, which reaction mixture has an isocyanate index of at least 10 and includes an aromatic polyisocyanate component, a polyol component having a polyol with a hydroxyl equivalent weight of at least 500, and a catalyst component having an isocyanate trimerization catalyst, and at least partially curing the reaction mixture to form a polyisocyanurate or polyurethane-isocyanurate polymer having a glass transition temperature of at least 80° C., and (b) exposing the substrate and the polyisocyanurate or polyurethane-isocyanurate polymer to water under superatmospheric pressure at a temperature of at least 70° C.Type: ApplicationFiled: July 9, 2014Publication date: May 5, 2016Inventors: Kaoru Aou, Juan Carlos Medina, Rajesh P. Paradkar, Dwight Latham, Michelle Tipps-Thomas
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Publication number: 20150336797Abstract: A curable liquid carbon precursor formulation for preparing a porous carbon composition including (a) at least one aromatic epoxy resin; (b)(i) at least one aromatic co-reactive curing agent, or (b)(ii) at least one catalytic curing agent, or (b)(iii) a mixture thereof; and (c) at least one porogen; wherein the liquid composition has a neat viscosity of less than 10,000 mPa-s, at 25° C. prior to adding porogen, prior to adding optional components, prior to curing, and prior to carbonizing; and wherein the liquid composition being cured has a carbon yield of at least 35 weight percent disregarding the weight of the porogen and any optional components present in the composition; a process for preparing the porous carbon composition from the above formulation including the steps of curing the formulation, and carbonizing the cured product resulting from curing the formulation such that a porous carbon composition is produced; and a porous carbon composition made by the above process.Type: ApplicationFiled: May 17, 2013Publication date: November 26, 2015Inventors: Hamed H Lakrout, Maurice J. Marks, Ludovic Valette, Dwight Latham
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Patent number: 9181428Abstract: Moisture curable compositions including silylated polymers and methods for producing the same are provided. A two component moisture curable system for producing a cured or cross-linked silylated polymer having improved compression set properties is provided. The two component system comprises a first formulation and a second formulation. The first formulation comprises a silylated polymer, water, and filler and the second formulation comprises the silylated polymer, a curing catalyst comprising at least one Brønsted acid, and a moisture scavenger. The final cured formulation may have a compression set, determined by ASTM D395 or ISO 815-1, of less than 100%, and in some examples less than 50% and in some examples less than 15%. This demonstrated improvement in compression set not only allows the silylated polymers to be used in applications where cyclic loads are applied but also enhances product durability.Type: GrantFiled: September 17, 2012Date of Patent: November 10, 2015Assignee: Dow Global Technologies LLCInventors: Kamesh R. Vyakaranam, Ling Zhang, Venkat S. Minnikanti, Dwight Latham, Sara Arshad, Rajat Duggal, William A. Koonce
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Publication number: 20150247057Abstract: The present invention provides a method for preparing an aqueous polyurethane dispersion comprising a polyurethane polymer, where the method comprises the step of (A) preparing a prepolymer from a reaction mixture comprising: (1) at least one polyisocyanate compound; (2) at least one polyol; and (3) ions of at least one alkali or alkaline earth metal; followed by the step of (B) contacting the prepolymer with a chain extending agent to form the polyurethane polymer. The present invention further provides an aqueous polyurethane dispersion comprising from 30% to 40%, by weight, of solids which comprise the polyurethane polymer and being prepared by the aforesaid method. A coating composition having enhanced removability and which comprises an aqueous polyurethane dispersion prepared according to the aforesaid method is also provided.Type: ApplicationFiled: September 20, 2013Publication date: September 3, 2015Inventors: Dwight Latham, Niranjan Malvadkar, Christopher J. Tucker, Caroline Woelfle-Gupta
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Publication number: 20150232386Abstract: Polymer concrete compositions comprising a silane-modified polymer (SMP) composition which comprises a silylated polymer, an epoxy resin, e.g., an epoxy-terminated prepolymer, and a cure catalyst, e.g., tetraethyltetraamine, exhibit good adhesion to wet concrete.Type: ApplicationFiled: August 12, 2013Publication date: August 20, 2015Inventors: Kamesh Vyakaranam, Dwight Latham, Kwanho Chang
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Publication number: 20150218428Abstract: Embodiments of the invention provide for polyurethane-based sealants. The sealants include a reaction product of a reaction system which includes at least one isocyanate, and at least one polyester polyol. The polyester polyol includes a reaction product of a polyester reaction mixture which includes one or more hydrophobic monomers, one or more organic diacids or methyl esters thereof, and one or more diols.Type: ApplicationFiled: September 26, 2012Publication date: August 6, 2015Inventors: Bindu Krishnan, Dwight Latham, Laura A. Grier, Woo-Sung Bae, Hector Perez, Jorge Jimenez, William A. Koonce
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Publication number: 20150218431Abstract: Embodiments of the present disclosure are directed towards using a carbon-Michael compound. As an example, a method of using a carbon-Michael compound to reduce heat transfer can include locating the carbon-Michael compound between a heat provider and a heat receptor, where the carbon-Michael compound is a reaction product of a multifunctional acrylate compound with a multifunctional Michael donor, and the heat provider has a temperature from 100 C to 290 C.Type: ApplicationFiled: September 26, 2013Publication date: August 6, 2015Applicant: Dow Global Technologies LLCInventors: Xin Jin, Dwight Latham, Steven Crain, Mark Sonnenschein
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Publication number: 20150087737Abstract: A reaction system for forming a hydrophilic polyurethane foam for liquid based cleaning applications includes a composition that has a prepolymer component and an aqueous component. The prepolymer component is a reaction product of an isocyanate component that includes diphenylemethane diisocyanate (MDI) and a polyol component that includes a polyoxyethylene-polyoxypropylene polyol that has an polyoxyethylene content greater than 65 wt %, based on a total weight of the polyoxyethylene-polyoxypropylene polyol. The aqueous component includes at least 60 wt % of water and at least 0.5 wt % of a surfactant, based on a total weight of the aqueous component. A weight ratio of the prepolymer component to the aqueous component in the composition is from 0.5:2 to 2:0.5, the composition has a cream time of less than 20 seconds and a tack free time of less than 7 minutes, and the hydrophilic polyurethane foam for liquid based cleaning applications has a wet tear strength of at least 500 N/m.Type: ApplicationFiled: September 18, 2014Publication date: March 26, 2015Inventors: Yasmin N. Srivastava, Subodh P. Jagtap, Venkat S. Minnikanti, Rogelio Gamboa, Dwight Latham, Rajat Duggal
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Publication number: 20140228515Abstract: Moisture curable compositions including silylated polymers and methods for producing the same are provided. A two component moisture curable system for producing a cured or cross-linked silylated polymer having improved compression set properties is provided. The two component system comprises a first formulation and a second formulation. The first formulation comprises a silylated polymer, water, and filler and the second formulation comprises the silylated polymer, a curing catalyst comprising at least one Brønsted acid, and a moisture scavenger. The final cured formulation may have a compression set, determined by ASTM D395 or ISO 815-1, of less than 100%, and in some examples less than 50% and in some examples less than 15%. This demonstrated improvement in compression set not only allows the silylated polymers to be used in applications where cyclic loads are applied but also enhances product durability.Type: ApplicationFiled: September 17, 2012Publication date: August 14, 2014Applicant: DOW GLOBAL TECHNOLOGIES LLCInventors: Kamesh R. Vyakaranam, Ling Zhang, Venkat S. Minnikanti, Dwight Latham, Sara Arshad, Rajat Duggal, William A. Koonce
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Publication number: 20070208133Abstract: The invention relates to polyurethane dispersions which develop high hardness and form coating films at room temperature. The dispersions are prepared from prepolymers containing prepolymers containing a polyol or polyol blend having specified equivalent weight and polyisocyanate to polyol molar ratio.Type: ApplicationFiled: September 1, 2006Publication date: September 6, 2007Applicant: Dow Global Technologies Inc.Inventors: Friederike Stollmaier, Dwight Latham, Michael Elwell, Debkumar Bhattacharjee, Bedri Erdem