Abstract: Processes for making a polyvinyl chloride (PVC) dry blend composition with a phthalate-free, bio-based plasticizer and filler, having a bulk density of greater than 0.67 g/cc and an extrusion rate of greater than 65 gm/minute for a single screw extruder of 0.75 in barrel diameter with a 25:1 L:D general purpose polyethylene screw at 75 rotations per minute screw speed, and compositions made by the processes are provided.
Type:
Grant
Filed:
September 14, 2012
Date of Patent:
June 16, 2015
Assignee:
Dow Global Technologies LLC
Inventors:
Manish Mundra, Neil W. Dunchus, Anthony C. Neubauer, Caroline H. Laufer, Michael B. Biscoglio, Robert F. Eaton, Abhijit Ghosh-Dastidar
Abstract: Barrier films made from a composition comprising vinylidene chloride (VDC) interpolymer and poly(butylene succinate) (PBS) exhibit improved tear resistance in both the machine and cross directions without a significant deterioration in oxygen transmission rate as compared to barrier films made under like conditions and from a composition alike in all respects except that the PBS is replaced with additional VDC interpolymer.
Abstract: The instant invention is a high-density polyethylene composition, method of producing the same, closure devices made therefrom, and method of making such closure devices. The high-density polyethylene composition according to the present invention comprises (a) a first component comprising a high molecular weight ethylene alpha-olefin copolymer having a density in the range of 0.927 to 0.938 g/cm3, and a melt flow rate (I21) in the range of 4 to 10 g/10 minutes, and (b) a second component comprising a low molecular weight ethylene polymer having a density in the range of 0.960 to 0.975 g/cm3, and a melt index (I2) in the range of 100 to 1200 g/10 minutes; and wherein the high-density polyethylene composition has a melt index (I2) in the range of from 2 to 10 g/10 minutes, a density in the range of from 0.950 to 0.960 g/cm3, and a flow direction shrinkage to cross flow direction shrinkage ratio in the range of from 2 to 3.
Type:
Grant
Filed:
January 27, 2010
Date of Patent:
June 16, 2015
Assignee:
Dow Global Technologies LLC
Inventors:
Mark B. Davis, Dale M. Elley-Bristow, William J. Michie, Jr., Stephanie M. Whited, Theresa J. Hermel-Davidock
Abstract: Halogen-free flame-retardant polymer composition, preparation method and use thereof are provided. The composition comprises a propylene polymer, a thermoplastic elastomer, and an intumescent flame retardant system comprising a piperazine component. The obtained halogen-free flame-retardant polymer composition is used to make wire or cable sheath.
Type:
Grant
Filed:
June 21, 2011
Date of Patent:
June 16, 2015
Assignee:
Dow Global Technologies LLC
Inventors:
Brian Yu, Yabin Sun, Journey Lu Zhu, Wilson Yan, David Guo, Jing Given Chen, Yu Rong Cao
Abstract: A solvent-free curable epoxy resin composition including (a) at least one divinylarene dioxide; and (b) at least one hardener; wherein the solvent-free curable epoxy resin composition is substantially free of solvent and has at least two exotherm peaks and wherein the exothermic peak difference of the two exotherm peaks is sufficient to allow the curable solvent-free epoxy resin composition of being B-staged.
Type:
Grant
Filed:
July 18, 2012
Date of Patent:
June 16, 2015
Assignee:
Dow Global Technologies LLC
Inventors:
Angela I. Padilla-Acevedo, Ludovic Valette, Michael J. Mullins, Kandathil E. Verghese, Mark B. Wilson
Abstract: An insulating composite for powder transmission and distribution containing a continuous reinforcing fiber embedded in a thermoset resin, wherein the thermoset resin is a reaction product of a curable epoxy resin composition comprising (a) at least one bisphenol A-type epoxy resin, (b) at least one oxazolidone ring containing epoxy resin, and (c) at least one anhydride hardener and wherein the curable epoxy resin composition has a viscosity of 6,000 millipascals·second or less at 25° C.; and a process for preparing the insulating composite.
Abstract: A hydroclone (10) including a tank (12) with a fluid inlet (14), a filtered fluid outlet (16), an effluent outlet (18), a process fluid outlet (20) and a chamber (24) including an inner peripheral wall (22) centered about a central axis (X). The hydroclone further includes: i) a filter assembly (26) located within the chamber (24) which has an outer membrane surface (44) symmetrically located about the central axis (X) and encloses a filtrate chamber (46) that is in fluid communication with the filtered fluid outlet (16), and ii) a cleaning assembly (50) concentrically located and rotatably engaged about the membrane surface (44). A fluid pathway (28) extends from the fluid inlet (14) and defines a vortex region (25) between the inner peripheral wall (22) of the chamber (24) and the membrane surface (44) and is adapted for receiving incoming fluid.
Type:
Grant
Filed:
May 7, 2013
Date of Patent:
June 9, 2015
Assignee:
Dow Global Technologies LLC
Inventors:
George D. Caffell, Gene A. McKay, Steven E. O'Reilly
Abstract: The present invention provides a process for the production of chlorohydrins, comprising generating a chlorohydrins processing stream and contacting at least a portion of a surface comprising a austenitic stainless steel with the chlorohydrin processing stream. It has now been surprisingly discovered that certain stainless steels can be utilized to form portions, or the entirety of, one or more pieces of processing equipment utilized in such processes.
Abstract: Cellulose ethers, wherein at least a part of the hydroxyl groups of the cellulose backbone are substituted by methoxy groups and hydroxyalkoxy groups, and optionally alkoxy groups being different from methoxy groups, having an unconventional distribution of methoxy substituents at the 2-, 3- and 6-positions of the anhydroglucose units are described. Such cellulose ethers exhibit significantly higher thermoreversible gel strengths than any known hydroxyalkyl methyl celluloses of comparable viscosity and kind and level of substitution rendering them useful as additives for building compositions such as cement based tile adhesives. In particular, such cellulose ethers can be used to improve the attainable adhesion strength after heat storage conditioning and the temporal setting characteristics of a building composition.
Abstract: A method for increasing the solubility of a hydrocarbon compound comprising an aliphatic or arene moiety substituted with at least one acyl halide and at least one carboxylic acid functional group within a hydrocarbon solvent, wherein the method includes the step of preparing a solution comprising: at least 80 v/v % of the hydrocarbon solvent, the hydrocarbon compound, and a tri-hydrocarbyl phosphate compound, wherein the concentration of the hydrocarbon compound is greater than its solubility limit within the solvent but less than its solubility limit in the solution and the hydrocarbon.
Type:
Grant
Filed:
March 16, 2013
Date of Patent:
June 9, 2015
Assignee:
Dow Global Technologies LLC
Inventors:
XiaoHua Sam Qiu, Steven D. Jons, Joseph D. Koob, Martin H. Peery, Steven Rosenberg, Abhishek Roy, Ian A. Tomlinson
Abstract: An in-situ method for preparing a hydrolyzed, acyl halide-containing compound by combining a reactant including a plurality of acyl halide functional groups containing reactant, a tri-hydrocarbyl phosphate compound and water within a hydrocarbon or halogenated hydrocarbon solvent.
Type:
Grant
Filed:
March 16, 2013
Date of Patent:
June 9, 2015
Assignee:
Dow Global Technologies LLC
Inventors:
Abhishek Roy, Steven D. Jons, Joseph D. Koob, Martin H. Peery, XiaoHua Sam Qiu, Steven Rosenberg, Ian A. Tomlinson
Abstract: Provided is a process for preparing a diaryl ether compound through the dehydration of an aromatic alcohol compound in the presence of a dehydration catalyst. The dehydration catalyst is an oxide of a light rare earth element, wherein the light earth element is lanthanum, praseodymium, neodymium, or mixtures thereof.
Type:
Grant
Filed:
May 29, 2013
Date of Patent:
June 9, 2015
Assignee:
Dow Global Technologies LLC
Inventors:
David G. Barton, Adam Chojecki, Paul R. Elowe, Beata A. Kilos, Eric E. Stangland
Abstract: Prepare polymeric foam articles having low yellowing using a styrene-acrylonitrile copolymer that contains less than 145 weight-parts acrylonitrile dimer and less than 8,500 weight-parts acrylonitrile trimer per million weight parts acrylonitrile copolymer.
Type:
Grant
Filed:
May 4, 2011
Date of Patent:
June 9, 2015
Assignee:
Dow Global Technologies LLC
Inventors:
Lawrence S. Hood, Brian H. Deshano, David J. Frankowski
Abstract: A method for making a composite polyamide membrane comprising a porous support and a thin film polyamide layer, wherein the method includes the step of applying a polyfunctional amine monomer and polyfunctional acyl halide monomer to a surface of the porous support and interfacially polymerizing the monomers to form a thin film polyamide layer, wherein the step of applying the polyfunctional acyl halide monomer to the porous support includes the step of combining the polyfunctional acyl halide monomer with a non-polar solvent at a concentration of at least 0.18 weight percent to form a coating solution which is applied to the surface of the porous support, and wherein the interfacial polymerization is conducted in the presence of a tri-hydrocarbyl phosphate compound which is provided in a molar ratio of at least 0.5:1 with the polyfunctional acyl halide monomer. Many additional embodiments are described including membranes made from the subject method and applications for such membranes.
Type:
Application
Filed:
July 3, 2013
Publication date:
June 4, 2015
Applicant:
Dow Global Technologies LLC
Inventors:
Abhishek Roy, Tina L. Arrowood, Robert C. Cieslinski, Derek M. Stevens, David D. Hawn, Steven D. Jons, Mou Paul, Martin H. Peery, Steven Rosenberg, Ian A. Tomlinson
Abstract: The invention provides a film comprising at least two layers, a first layer and a second layer; and wherein the first layer is formed from a first composition comprising a polyester, a polylactic acid, or a combination thereof; and wherein the second layer is formed from a second composition comprising at least the following: A) functionalized ethylene-based polymer, and B) ethylene/alpha-olefin interpolymer; and wherein the first layer is adjacent to the second layer.
Type:
Application
Filed:
March 5, 2013
Publication date:
June 4, 2015
Applicants:
Dow Brasil SA, Dow Global Technologies LLC
Inventors:
Didem Oner-Deliormanli, Marlos Giuntini de Oliveira, Ashish Batra, Rajen Patel, Brian Walther
Abstract: Aromatic dicyanate compounds which comprise aliphatic moieties having at least about six carbon atoms and resins and thermoset products based on these compounds.
Type:
Grant
Filed:
March 9, 2009
Date of Patent:
June 2, 2015
Assignee:
Dow Global Technologies LLC
Inventors:
Michael J. Mullins, Robert E. Hefner, Jr., Ulrich Herold, Mark B. Wilson
Abstract: The invention provides a process to form an ethylene-based polymer composition, the process comprising at least the following: Step 1: polymerizing a first ethylene-based polymer in the presence of at least one molecular catalyst and a hydrocarbon chain transfer agent, and at a polymerization pressure of at least 14,000 psi; Step 2: polymerizing a second ethylene-based polymer.
Type:
Grant
Filed:
November 21, 2011
Date of Patent:
June 2, 2015
Assignee:
Dow Global Technologies LLC
Inventors:
Sean W. Ewart, Sarat Munjal, Alfred E. Vigil, Jr., Teresa P. Karjala, Mehmet Demirors
Abstract: A process comprising contacting a) an epoxy resin; b) an adduct comprising at least one oxazolidone ring prepared from a multifunctional epoxy resin and an isocyanate compound; and c) an unsaturated acid to form a vinyl ester, is disclosed.
Type:
Grant
Filed:
July 30, 2012
Date of Patent:
June 2, 2015
Assignee:
Dow Global Technologies LLC
Inventors:
Joseph Gan, Patrick P. Yan, Yan L. Feng, Wayne Y. Zhang
Abstract: A low viscosity toughened epoxy resin formulation including a divinylbenzene dioxide as a component in the formulation; wherein the formulation is useful for the manufacture of thermoset polymers.
Abstract: The present invention is an aliphatic or cycloaliphatic isocyanate obtained form a process comprising the steps of reacting an aliphatic or cycloaliphatic primary amine, with phosgene in the presence of an inert solvent, wherein the initial reaction temperature is between 100 and 130° C. and the temperature is subsequently ramped to 150 to 180° C. during the course of the reaction, the solvent to amine weight ratio is 95:5 to 80:20, the total reaction pressure is maintained between 50 and 350 psig and the amine is rapidly dispersed in the phosgene through injection in a region of high efficiency mixing.
Type:
Grant
Filed:
May 6, 2013
Date of Patent:
June 2, 2015
Assignee:
Dow Global Technologies LLC
Inventors:
Rory D. Daussin, Paula A. Cameron, Lao-Jer Chen, Jorge Jimenez, Joerg-Peter Gehrke