Patents Assigned to Dow Chemical Company
  • Patent number: 7617719
    Abstract: A method and apparatus for its practice are provided of differentiating at least one component of a heterogeneous sample from other component(s) using harmonic resonance imaging and of obtaining information regarding the sample from the differentiation. In a preferred embodiment, an image is created of a property of a harmonic or a combination of a harmonics producing a response having a contrast factor between the sample's constituent components. The desired harmonic(s) can be identified either in a preliminary data acquisition procedure on the sample or, if the sample's constituent components are known in advance, predetermined. The desired harnonic(s) may be identified directly by the user or automatically through, e.g., pattern recognition. A compositional map may then be generated and displayed and/or additional information about the sample may be obtained.
    Type: Grant
    Filed: November 30, 2006
    Date of Patent: November 17, 2009
    Assignees: The Dow Chemical Company, Veeco Instruments Inc.
    Inventors: Chanmin Su, Craig Prater, Gregory F. Meyers, Bryant R. LaFreniere
  • Publication number: 20090214395
    Abstract: A method and apparatus are disclosed for controlling product discharge from a fluidized bed reactor and for minimizing the loss of the unreacted monomer in the fluidizing gas upon removing the solid polymer product from the reactor. The method and apparatus utilize at least one detector in the product tank or its vent line and a control system in communication with the detector and the product tank fill valve, along with certain algorithms, to adjust by an iterative process, the product discharge time, thereby maximizing resin fill in the product tank and minimizing the lost reactor gas volume.
    Type: Application
    Filed: February 27, 2008
    Publication date: August 27, 2009
    Applicant: THE DOW CHEMICAL COMPANY
    Inventors: John R. Parrish, Jeffrey B. Drabish, Oscar M. Longoria, JR., James L. Swecker, II
  • Patent number: 7579392
    Abstract: The invention is a formulation that contains: (1) a low-viscosity epoxy resin; (2) a phenolic chain extender whose concentration is less that 0.6 equivalents phenolic hydroxyl group per equivalent of the low-viscosity epoxy resin; (3) a catalyst that promotes self-curing reactions between epoxy groups; (4) an inhibitor that inhibits the activity of the catalyst under “B-staging” conditions; (5) less than 25 weight percent of a volatile organic solvent; and (6) optionally, a multifunctional cross-linking agent. The formulation contains low levels of volatile organic solvent, and can be used to make electrical laminates. It builds molecular weight controllably in B-staging, so that dripping is avoided but the prepreg can be easily laminated.
    Type: Grant
    Filed: October 13, 1995
    Date of Patent: August 25, 2009
    Assignee: The Dow Chemical Company
    Inventors: Joseph Gan, Alan R. Goodson
  • Publication number: 20090133834
    Abstract: Improved adhesives are provided through the use of styrenic radial block copolymers, containing at least 40 wt % diblock copolymers, the adhesives have improved adhesive properties and a reduced elastic behavior under die-cutting conditions. Compared to conventional linear block copolymers of similar molecular weight, radial copolymers offer higher holding power and lower melt viscosity for the adhesive. They therefore contribute to an improved balance between processability and end-use properties.
    Type: Application
    Filed: October 31, 2007
    Publication date: May 28, 2009
    Applicants: THE DOW CHEMICAL COMPANY, EXXONMOBIL CHEMICAL PATENTS, INC.
    Inventors: Jacques Bernard Lechat, Michael Oliver Myers, Marie-Noelle Cazenave, Christophe Derail, Nicolas Kappes, Jurgen Schroeyers
  • Publication number: 20090118523
    Abstract: A method of separating propylene oxide from a mixture (M) comprising propylene oxide and methanol, said method comprising: (i) introducing said mixture (M) into an extractive distillation column; (ii) additionally introducing an extracting solvent into said extractive distillation column; (iii) distilling propylene oxide overhead from said extractive distillation column as top stream; (iv) withdrawing a bottoms stream from said extractive distillation column; (v) compressing the top stream obtained overhead in (iii) by means of at least one compressor to give a compressed vapor.
    Type: Application
    Filed: July 6, 2005
    Publication date: May 7, 2009
    Applicants: BASF AKITENGESELLSHAFT, THE DOW CHEMICAL COMPANY
    Inventors: Hans-Georg Gobbel, Henning Schultz, Peter Schultz, Renate Patrascu, Malte Schultz, Meinolf Weidenbach
  • Publication number: 20080306290
    Abstract: The present invention provides a process for the epoxidation of propene which comprises reacting propene with hydrogen peroxide in the presence of methanol as solvent and a titanium zeolite catalyst, the process further comprising separating propylene oxide from the reaction mixture to obtain a mixture comprising methanol, water, at least one carboxylic acid and at least one carbonyl compound, wherein the at least one carboxylic acid is at least partially neutralized, said process optionally comprising a hydrogenation stage.
    Type: Application
    Filed: December 18, 2006
    Publication date: December 11, 2008
    Applicants: Basf Se, The Dow Chemical Company
    Inventors: Hans-Georg Gobbel, Peter Bassler, Joaquim Henrique Teles, Peter Rudolf, Ulrich Muller, Anna Forlin, Malte Schulz, Meinolf Weidenbach
  • Publication number: 20080289948
    Abstract: The present invention relates to a process for separating at least one propylene glycol from a mixture (M) comprising water and said propylene glycol, said process comprising (I) evaporating the mixture in at least two evaporation and/or distillation stages at decreasing operating pressures of the evaporators and/or distillation columns obtaining mixture (M?) and mixture (M?); (II) separating the mixture (M?) obtained in (I) in at least one further distillation step, obtaining a mixture (M-I) comprising at least 70 wt.-% of water and a mixture (M-II) comprising less than 30 wt.-% of water.
    Type: Application
    Filed: December 13, 2006
    Publication date: November 27, 2008
    Applicants: BASF SE, THE DOW CHEMICAL COMPANY
    Inventors: Armin Diefenbacher, Hans-Georg Gobbel, Stefan Bitterlich, Hartwig Voss, Henning Schultz, Anna Forlin, Renate Patrascu
  • Publication number: 20080289758
    Abstract: A reactive hot melt composition, having a softening point of at least 50° C., and being curable on heating to a temperature of 150° C. The composition comprises a blend of (a) a macrocyclic oligomer having a softening point of at least 50° C., containing at least one ring having eight or more atoms, and being able to undergo decyclization at a temperature of 150° C. or more, to produce a polymerizable species, wherein each cyclic oligomer molecule provides two or more structural repeat units of the same or different formula for the resulting polymer, and (b) a thermoplastic resin, its use as an adhesive and methods of its application.
    Type: Application
    Filed: March 23, 2005
    Publication date: November 27, 2008
    Applicants: THE DOW CHEMICAL COMPANY, DOW BENELUX B.V., DOW EUROPE GMBH
    Inventors: Franciscus J.T. Krabbenborg, David H. Bank, Robert P. Dion, Brian D. Dickie
  • Publication number: 20080167484
    Abstract: The present invention relates to a process for producing propylene oxide comprising (I) reacting propene with hydrogen peroxide in the presence of a catalyst to give a mixture (GI) comprising propylene oxide, unreacted propene, and oxygen; (II) separating propylene oxide from mixture (GI) to give a mixture (GII) comprising propene and oxygen; (III) reducing the oxygen comprised in mixture (GII) at least partially by reaction with hydrogen in the presence of a catalyst comprising Sn and at least one noble metal.
    Type: Application
    Filed: June 20, 2006
    Publication date: July 10, 2008
    Applicants: BASF Aktiengesellschaft, The Dow Chemical Company
    Inventors: Gotz-Peter Schindler, Christian Walsdorff, Reinhard Korner, Hans-Georg Gobbel
  • Publication number: 20080076844
    Abstract: A method for generating a thermoplastic foam from an aqueous dispersion, the aqueous dispersion comprising a thermoplastic resin, water, and a dispersion stabilizing agent, the method including: adding at least one froth stabilizing surfactant to the aqueous dispersion to form a mixture; adding a fiber to the mixture; and frothing the mixture to create a froth, removing at least a portion of the water in the froth to create a foam, wherein the foam generated has a non-cellular fibrillated morphology. In another aspect, embodiments disclosed herein relate to a foam having a thermoplastic-based, fibrillated, non-cellular structure, wherein the foam has an average density of about 0.02 g/cm3 to about 0.07 g/cm3. In certain embodiments, the foam may be used in an absorbent article.
    Type: Application
    Filed: September 22, 2006
    Publication date: March 27, 2008
    Applicant: The Dow Chemical Company
    Inventors: Mark W. Van Sumeren, Luther Stockton, Sue Machelski
  • Patent number: 7323579
    Abstract: A method of separating propylene oxide from a mixture (M) comprising 5 to 50 percent by weight propylene oxide and 50 to 85 percent by weight methanol, said method comprising (i) introducing said mixture (M) into an extractive distillation column; (ii) additionally introducing a polar solvent into said extractive distillation column; (iii) distilling propylene oxide overhead from said extractive distillation column at a bottoms temperature of from 40 to 70° C. and at a pressure of from 300 to 750 mbar.
    Type: Grant
    Filed: July 7, 2004
    Date of Patent: January 29, 2008
    Assignees: BASF Aktiengesellschaft, The Dow Chemical Company Legal Department Intellectual Property Section
    Inventors: Hans-Georg Göbbel, Henning Schultz, Peter Schultz, Renate Patrascu, Malte Schulz, Meinolf Weidenbach
  • Publication number: 20070287675
    Abstract: Inhalable compositions are described. The inhalable compositions comprise one or more respirable aggregates, the respirable aggregates comprising one or more poorly water soluble active agents, wherein at least one of the active agents reaches a maximum lung concentration (Cmax) of at least about 0.25 ?g/gram of lung tissue and remains at such concentration for a period of at least one hour after being delivered to the lung. Methods for making such compositions and methods for using such compositions are also disclosed.
    Type: Application
    Filed: August 26, 2005
    Publication date: December 13, 2007
    Applicants: THE DOW CHEMICAL COMPANY, BOARD OF REGENTS UNIVERSITY OF TEXAS SYSTEM
    Inventors: James Hitt, True Rogers, Brian Scherzer, Ian Gillespie, Paula Garcia, Nicholas Beck, Christopher Tucker, Timothy Young, David Hayes, Robert Williams III, Keith Johnston, Jason McConville, Jay Peters, Robert Talbert, David Burgess
  • Patent number: 7291767
    Abstract: This invention relates to putative known and unknown deoxyribonucleic acid (DNA) and amino acid sequences identified in one or more metabolic pathways that lead to dwarfism and stunting in plants and the use of these sequences in agriculture to create dwarf varieties of any plant species. This invention also relates to nucleic acids sequences and polypeptides that produce altered metabolism phenotypes in plants.
    Type: Grant
    Filed: July 20, 2001
    Date of Patent: November 6, 2007
    Assignee: The Dow Chemical Company
    Inventors: J. Vincent B. Oriedo, David McCrery, Philip Savickas, Barbara A. Miller, Randy Pell, Ignacio M. Larrinua, Ted Weglarz, Daniel Gachotte, Avutu S. Reddy, Max Ruegger, Beth Blakeslee, Gregory P. Pogue, Rodney Crosley, Wenjin Zheng, Guy R. Della-Cioppa, Gerson Wolfe
  • Patent number: 7288590
    Abstract: Improved adhesives are provided through the use of styrenic tetrablock or pentablock copolymers which have a reduced elastomeric behavior under the die-cutting conditions used in label production.
    Type: Grant
    Filed: June 26, 2001
    Date of Patent: October 30, 2007
    Assignees: Exxon Chemical Patents, Inc., The Dow Chemical Company
    Inventors: Jacques S. Lechat, Kenneth Lewtas, Roger R. Delme, Oliver J. Georjon, Francois-Xavier Gibert, Gerard Marin, Michael O. Myers
  • Publication number: 20070238888
    Abstract: A method of separating propylene oxide from a mixture (M) comprising 5 to 50 percent by weight propylene oxide and 50 to 85 percent by weight methanol, said method comprising (i) introducing said mixture (M) into an extractive distillation column; (ii) additionally introducing a polar solvent into said extractive distillation column; (iii) distilling propylene oxide overhead from said extractive distillation column at a bottoms temperature of from 40 to 70° C. and at a pressure of from 300 to 750 mbar.
    Type: Application
    Filed: July 6, 2005
    Publication date: October 11, 2007
    Applicants: BASF AKTIENGESELLSCHAFT, THE DOW CHEMICAL COMPANY
    Inventors: Hans-Georg Goebbel, Henning Schultz, Peter Schultz, Renate Patrascu, Malte Schulz, Meinolf Weidenbach
  • Publication number: 20070141323
    Abstract: An aqueous dispersion including (A) at least one base polymer selected from the group consisting of an ethylene-based co-polymer and a propylene-based co-polymer; (B) at least one polymeric stabilizing agent; and at least one filler; wherein the polymeric stabilizing agent is different from the at least one base polymer and is compatible with the at least one base polymer and the at least one filler, and wherein the dispersion has filler in the range of greater than 0 to about 600 parts per hundred parts of a combined amount of the at least one base polymer and the polymeric stabilizing agent is disclosed.
    Type: Application
    Filed: December 15, 2005
    Publication date: June 21, 2007
    Applicants: The Dow Chemical Company, Dow Global Technologies, Inc.
    Inventors: Ronald Wevers, James Kennedy, Aaron Bujnowski, Brad Moncla
  • Publication number: 20070135563
    Abstract: Disclosed are adhesives and processes for preparing the same, comprising at least one first homogeneous ethylene/?-olefin interpolymer, and optionally at least one tackifier, and optionally at least one plasticizer. The claimed adhesives are useful as adhesives such as are employed in various applications, such as in masking tape, clear office tape, labels, decals, bandages, decorative and protective sheets (such as shelf and drawer liners), floor tiles, sanitary napkin/incontinence device placement strips, sun control films, the joining of gaskets to automobile windows, packaging, bookbinding, construction of nonwoven articles, and insulation bonding.
    Type: Application
    Filed: February 5, 2007
    Publication date: June 14, 2007
    Applicant: The Dow Chemical Company
    Inventors: Eugene Simmons, William Bunnelle, David Malcolm, Keith Knutson, Thomas Harleysville, Mark Kroll, Michael Keehr, Deepak Parikh, Jimmy Allen, David Speth, Selim Yalvac, Malcolm Finlayson, Cyndi Rickey
  • Publication number: 20070122614
    Abstract: The present invention provides a bicomponent fiber having increased surface roughness. The fiber includes a first polymer and a composite, wherein the composite forms a layer which forms at least a portion of the fiber's surface. The composite is formed by a second polymer and a filler, where an average particle size of the filler can be greater than a thickness of the layer formed by the composite. The fibers can have a round, oval, trilobal, triangular, dog-boned, flat or hollow shape and a symmetrical or asymmetrical sheath/core or side-by-side configuration. When the fiber has a sheath/core configuration, the composite can form the sheath, and the average particle size of the filler can be greater than the thickness of the sheath.
    Type: Application
    Filed: November 30, 2005
    Publication date: May 31, 2007
    Applicant: The Dow Chemical Company
    Inventors: Hong Peng, Jozef Van Dun, Randy Pepper, Edward Knickerbocker
  • Patent number: 7223876
    Abstract: The present invention relates to a method of separating an olefin from a gas stream, said gas stream comprising the olefin and at least one other component, said method comprising (i) compressing and cooling the gas stream; (ii) separating the olefin from the gas stream by absorbing the olefin in an absorbent; (iii) separating the olefin from the absorbent by desorption; wherein compressing or cooling or compressing and cooling in (i) is carried out at least twice.
    Type: Grant
    Filed: April 21, 2004
    Date of Patent: May 29, 2007
    Assignees: BASF Aktiengesellschaft, The Dow Chemical Company, Legal Department, Intellectual Property Section
    Inventors: Hans-Georg Göbbel, Henning Schultz, Peter Schultz, Renate Patrascu, Malte Schulz, Meinolf Weidenbach
  • Patent number: 7208655
    Abstract: The invention relates to assembled particles of a plant virus containing a predetermined foreign peptide as part of the coat protein of the virus, and a method for their production. The foreign peptide is preferably a biologically functional peptide, the biological application of which requires or is enhanced by presentation of the peptide in association with a larger molecule or particle.
    Type: Grant
    Filed: May 30, 2000
    Date of Patent: April 24, 2007
    Assignee: The Dow Chemical Company
    Inventors: George Peter Lomonossoff, John Emil Johnson