Abstract: A variety of improved hydroclone based fluid filtering systems are described. The hydroclones generally include a tank having an internal chamber and a filter (preferably a surface filter) that is positioned within the internal chamber. The filter defines a filtered fluid chamber within the internal chamber of the tank. The hydroclone may be operated such that a vortex of flowing fluid is formed between the chamber wall and the filter with the filter being located in the center of the vortex. With this arrangement, the filter acts as a cross-flow filter. In one aspect of the invention, a circulating cleaning assembly is provided in the hydroclone region. In yet another aspect of the invention, improved hydroclone intake structures are described.
Abstract: A floating dock system contains a polymeric foam core, a structural collar, attachment means connected to the structural collar and a protective coating adhering to and completely covering the polymer foam core and structural collar and is free of decking or plates that are independent of the structural collar between the top surface of the polymeric foam core and the protective coating.
Type:
Grant
Filed:
July 5, 2012
Date of Patent:
April 22, 2014
Assignee:
Dow Global Technologies LLC
Inventors:
Clinton M. Schmidt, Daniel G. Darling, Gary D. Parsons, Jeffrey M. Alcott
Abstract: A dispensing device (10) for dispensing compressed fluid from a can (100) through a valve stem (110) of the can, the dispensing device containing a hollow tube (20) defining a channel (22) there-through, a connector (40) defining a conduit (46) there-through that is in fluid communication with the channel of the hollow tube, a plug (30) located in the channel of the hollow tube that is able to move in the channel of the hollow tube and seal the hollow tube from fluid flow when pressed towards the dispensing end (24) of the hollow tube (22), a sealed port between the inside and outside of the dispensing device and a flexible and inelastic extension piece (50) attached to the plug and extending through the channel of the hollow tube and, optionally, the conduit of the connector then out from the dispensing device through the sealed port and capable of attaching to a can (100) to which the dispensing device (100) is connected.
Type:
Grant
Filed:
February 16, 2012
Date of Patent:
April 22, 2014
Assignee:
Dow Global Technologies LLC
Inventors:
Mary M. Hoagland, Peter J. Schulz, Christopher J. Siler
Abstract: A process for preparing propylene oxide by epoxidizing propylene with an oxidant in the presence of a pretreated catalyst; wherein the catalyst comprises an activated titanium silicalite with MFI structure (TS-1) catalyst; and wherein the catalyst has been activated by pretreatment with methanol to form the pretreated catalyst. The pretreated TS-1 catalyst may be used in the epoxidizing propylene reaction with no additional methanol added; and the pretreated catalyst has equivalent activity to TS-1 catalyst used with large excesses of methanol.
Abstract: Provided are polyhydroxy-diamine compounds of the formula I: or salt thereof, wherein R1, R2, and R3 are as defined herein. The compounds are useful as low additives for paints, coatings and epoxy formulations.
Type:
Grant
Filed:
April 28, 2010
Date of Patent:
April 22, 2014
Assignees:
Dow Global Technologies LLC, ANGUS Chemical Company
Abstract: Embodiments of the invention generally relate to polyols having resistance to hydrocarbons and articles made therefrom. More specifically, embodiments of the invention generally relate to hydrophilic polyester-polycarbonate polyols having resistance to hydrocarbons at high temperatures and articles made therefrom. The novel hydrophilic polyester-polycarbonate polyols described herein may be used in adhesive or elastomer applications requiring enhanced oil and/or diesel resistance. The disclosed polyols are liquid at room temperature, which facilitates processing into polyurethane products As described herein, an elastomer made from such hydrophilic polyester-polycarbonate polyols and methylene diphenyl diisocyanate (MDI) retained >90% of tensile strength after 500 hours ageing at 121 degrees Celsius. A comparative example made from a polyester polyol retained 50% of tensile strength under similar conditions.
Type:
Application
Filed:
March 27, 2012
Publication date:
April 17, 2014
Applicant:
Dow Global Technologies LLC
Inventors:
Harpreet Singh, Jorge Jimenez, William H. Heath, Woo-Sung Bae, Amarnath Singh
Abstract: PVC resin-based compositions that include biochemical plasticizers as the primary plasticizers are provided. The compositions include PVC resin, a compatibilizer, one or more biochemical plasticizers and, optionally, a thermoplastic elastomer impact modifier. The biochemical plasticizers are present in substantial quantities in the compositions and, in some embodiments, are the only plasticizers present in the compositions.
Abstract: Described are devices for retaining a nonporous substrate, as well as methods for their use, the devices comprising a housing for receiving the nonporous substrate, a removable well insert attached to the housing and adjacently coplanar to the substrate, the well insert having at least one opening that, together with the substrate, defines a well, and means for exerting a force against the substrate such that the substrate engages the well insert with sufficient force to attain a fluid-tight seal in the well.
Type:
Grant
Filed:
October 6, 2009
Date of Patent:
April 15, 2014
Assignee:
Dow Global Technologies LLC
Inventors:
J. Keith Harris, David A. Hayes, Linda A. Moore, Jessica L. Bell
Abstract: A multiple liquid phase composition and process for preparing an oxirane product, such as epichlorohydrin, including a reaction mixture of: (a) at least one olefin, wherein the olefin is selected from one of (i) an aliphatic olefin or substituted aliphatic olefin, with the proviso that the aliphatic olefin is not propylene, (ii) a cycloaliphatic olefin, (iii) an aromatic olefin, (iv) a cycloaromatic olefin, and (v) mixtures thereof; (b) at least one peroxide compound, (c) at least one catalyst, and (d) and a solvent mixture; wherein the solvent mixture comprises at least (i) at least one alcohol or a combination of alcohols, and (ii) at least one non-reactive co-solvent; wherein the solvents are mixed at a predetermined concentration; wherein the non-reactive co-solvent has a different boiling point than the oxirane product; and wherein the oxirane product partitions into a high affinity solvent during the reaction.
Type:
Grant
Filed:
August 4, 2010
Date of Patent:
April 15, 2014
Assignee:
DOW Global Technologies, LLC
Inventors:
Hannah L. Crampton, Philip J. Carlberg, David H. West, Bruce D. Hook, William W. Fan, Anna Forlin
Abstract: The present invention is premised upon a through-roof connector assembly comprising one or more photovoltaic building sheathing elements capable of being affixed on a building structure, the photovoltaic building sheathing element including a sheathing element electrical connector along a sheathing element peripheral edge; a through-roof connector edge piece assembly that abuts a portion of the photovoltaic building sheathing element and includes: a body portion, an edge piece electrical connector, one or more wire leads that are connected on one end to the edge piece electrical connector; a wire guiding member with at least one conduit hole, the wire guiding member located under the through-roof connector edge piece assembly when assembled; and an under-roof junction device that is removably connected to the wire guiding member.
Type:
Grant
Filed:
May 2, 2011
Date of Patent:
April 15, 2014
Assignee:
Dow Global Technologies LLC
Inventors:
Stephen G. Pisklak, James Miller, Michael I Lesniak, Ryan S. Gaston, Timothy C. Plum, Gerald K. Eurich, Joseph A. Langmaid, James R. Keenihan
Abstract: The instant invention is a high-density polyethylene composition, method of producing the same, articles made therefrom, and method of making such articles. The high-density polyethylene composition of the instant invention includes a first component, and a second component. The first component is a high molecular weight ethylene alpha-olefin copolymer having a density in the range of 0.915 to 0.940 g/cm3, and a melt index (I21.6) in the range of 0.5 to 10 g/10 minutes. The second component is a low molecular weight ethylene polymer having a density in the range of 0.965 to 0.980 g/cm3, and a melt index (I2) in the range of 50 to 1500 g/10 minutes. The high-density polyethylene composition has a melt index (I2) of at least 1, a density in the range of 0.950 to 0.960 g/cm3, and g? of 1.
Type:
Grant
Filed:
April 22, 2013
Date of Patent:
April 15, 2014
Assignee:
Dow Global Technologies
Inventors:
William J. Michie, Jr., Thomas W. Kay, Stephanie M. Whited, Dale M. Elley-Bristow, David T. Gillespie, Lonnie G. Hazlitt
Abstract: Convert a methylamine (e.g. monomethylamine, dimethylamine and trimethylamine) to a mixture of olefins (e.g. ethylene, propylene and butylene) by placing the methylamine, optionally in a mixture with at least one of ammonia and an inert diluent, in contact with a microporous acidic silicoaluminophosphate catalyst or a microporous aluminosilicate catalyst.
Type:
Grant
Filed:
May 31, 2011
Date of Patent:
April 15, 2014
Assignee:
Dow Global Technologies LLC
Inventors:
Robert G. Bowman, Eric E. Stangland, Rainer Bruening, Angelika Heilmann, Roland Wagner, Jason Lee Bronkema
Abstract: Embodiments of the present disclosure include dispersion compositions having a nonionic surfactant for use in enhanced petroleum recovery, and methods of using the dispersion compositions in petroleum recovery processes. For the various embodiments, the nonionic surfactant of the dispersion composition promotes the formation of a dispersion from carbon dioxide and water.
Type:
Grant
Filed:
August 19, 2009
Date of Patent:
April 15, 2014
Assignee:
Dow Global Technologies LLC
Inventors:
Aaron W. Sanders, Keith P. Johnston, Quoc Nguyen, Stephanie Adkins, Xi Chen, Ed G. Rightor
Abstract: An ethylenic polymer comprising amyl groups from about 0.1 to about 2.0 units per 1000 carbon atoms as determined by Nuclear Magnetic Resonance and both a peak melting temperature, Tm, in ° C., and a heat of fusion, Hf, in J/g, as determined by DSC Crystallinity, where the numerical values of Tm and Hf correspond to the relationship Tm?(0.2143*Hf)+79.643. An ethylenic polymer comprising at least one preparative TREF fraction that elutes at 95° C. or greater using a Preparative Temperature Rising Elution Fractionation method, where at least one preparative TREF fraction that elutes at 95° C. or greater has a gpcBR value greater than 0.05 and less than 5 as determined by gpcBR Branching Index by 3D-GPC, and where at least 5% of the ethylenic polymer elutes at a temperature of 95° C. or greater based upon the total weight of the ethylenic polymer.
Type:
Grant
Filed:
September 23, 2013
Date of Patent:
April 15, 2014
Assignee:
Dow Global Technologies LLC
Inventors:
Mehmet Demirors, Teresa P. Karjala, Christopher R. Eddy, Lonnie G. Hazlitt, Pak-Meng Cham, Sarat Munjal, Wallace W. Yau
Abstract: A multilayer film structure comprising a top encapsulation layer A, a tie Layer B between top Layer A and bottom Layer C and a bottom layer C, the multilayer film structure characterized in that tie Layer B comprises a crystalline block composite resin or a block composite resin and bottom Layer C comprises a polyolefin having at least one melting point greater than 125° C.
Type:
Application
Filed:
June 28, 2012
Publication date:
April 10, 2014
Applicant:
Dow Global Technologies LLC
Inventors:
Jeffrey E Bonekamp, Yushan Hu, Nichole E. Nickel, Lih-Long Chu, John a. Naumovitz, Mark G. Hofius
Abstract: A method for preparing a compound having formula (II) wherein R1 and R2 independently are methyl or ethyl, or R1 and R2 combine to form a C5 or C6 cycloalkyl or cycloalkenyl group. The method includes a step of combining R1R2CHNO2, glutaraldehyde and an amine. The compound is useful in coating compositions and other applications for pH adjustment.
Type:
Grant
Filed:
October 8, 2010
Date of Patent:
April 8, 2014
Assignees:
Dow Global Technologies LLC, ANGUS Chemical Company
Inventors:
Ian Anthony Tomlinson, Glenn Nelson Robinson, Asghar Akber Peera
Abstract: Agglomerated fine solids, e.g., agglomerated pellets (2B), that are located within a restricted space or pinch point of a conveyance system (1), and that impede the free-flow of fine solids from one vessel (4) to another vessel (10), are detected and fragmented through the coordinated use of a flow detector (12), breaker plate (8) and press (6). The flow detector (12) senses an interruption or diminishment in the flow of the fine solids and signals and actuates the press (6) which in turn engages and fragments the agglomeration. The breaker plate (8) is sized and configured to trap major agglomerates.
Type:
Grant
Filed:
August 14, 2008
Date of Patent:
April 8, 2014
Assignee:
Dow Global Technologies LLC
Inventors:
Yongyong Yang, Ang Zhao, Shinichi Suzuki, Xiaohai Gong
Abstract: A half ester of an organic polyol made by reacting polyols with anhydrides; a thermosettable composition including (i) the half ester of an organic polyol, (ii) an anhydride, (iii) an epoxide, and (iv) a catalyst; and a thermoset product made from such thermosettable composition. The thermosettable compositions of the present invention are useful in various applications such as casting, potting, and encapsulation, such as electrical and electronics applications, and composites. The thermoset products made from the thermosettable compositions of the present invention have improved mechanical performances, especially toughness and mechanical strength, while maintaining high thermal resistance.
Abstract: The invention provides a polymer comprising units derived from ethylene and siloxane, polymer having at least 0.15 units of amyl groups per 1000 carbon atoms as determined by 13C Nuclear Magnetic Resonance (NMR).
Type:
Grant
Filed:
September 14, 2010
Date of Patent:
April 8, 2014
Assignee:
Dow Global Technologies LLC
Inventors:
Mehmet Demirors, Teresa P. Karjala, John O. Osby