Patents Assigned to Dow Global Technologies
  • Patent number: 8993759
    Abstract: A transamination process is described to prepare polyamine product mixtures from reactants comprising mixed nitrogen-containing compounds with binary carbon spacing between nitrogen-containing groups (a binary component). A second nitrogen-containing component with a second carbon atom spacing between nitrogen-containing groups may also be employed. The molar ratio between the binary and second components can be adjusted to customize the product composition for desired end uses.
    Type: Grant
    Filed: October 20, 2011
    Date of Patent: March 31, 2015
    Assignee: DOW Global Technologies LLC
    Inventor: Stephen W. King
  • Patent number: 8993747
    Abstract: The present invention relates to a process for the production of alkali cellulose for the production of alkali cellulose and, optionally, cellulose ethers from cellulose in the presence of alkali and, if applicable, with alkylating and/or hydroxyalkylating agent(s) comprising the reaction of a cellulose with an alkali metal hydroxide, wherein the alkali metal hydroxide is mixed with cellulose in a mixing apparatus, the mixing apparatus (1) having an upper region (20, 102a, 202a) with a first cross-section and a lower region (21, 102b, 202b) with a second cross-section, the second cross-section being the same as or smaller than the first cross-section and comprising at least one non-horizontally oriented mixing device (23, 27, 121, 221, 224).
    Type: Grant
    Filed: January 8, 2010
    Date of Patent: March 31, 2015
    Assignee: Dow Global Technologies LLC
    Inventors: Matthias Sprehe, Bettina Hoelzer
  • Patent number: 8993882
    Abstract: The present invention provides strategies for making high quality CIGS photoabsorbing materials from precursor films that incorporate a sub-stoichiometric amount of chalcogen(s). Chalcogen(s) are incorporated into the CIGS precursor film via co-sputtering with one or more other constituents of the precursor. Optional annealing also may be practiced to convert precursor into more desirable chalcopyrite crystalline form in event all or a portion of the precursor has another constitution. The resultant precursors generally are sub-stoichiometric with respect to chalcogen and have very poor electronic characteristics. The conversion of these precursors into CMS photoabsorbing material via chalcogenizing treatment occurs with dramatically reduced interfacial void content. The resultant CIGS material displays excellent adhesion to other layers in the resultant photovoltaic devices.
    Type: Grant
    Filed: March 14, 2011
    Date of Patent: March 31, 2015
    Assignee: DOW Global Technologies LLC
    Inventors: Jennifer E. Gerbi, Marc G. Langlois, Robert T. Nilsson
  • Patent number: 8995810
    Abstract: This invention relates to a fiber reinforced plastic material with improved flexibility and high tensile strength for use in optic cables. The strength member composition comprises a polypropylene based thermoplastic resin, a continuous fiber having a modulus greater than 80 PGa, and talc.
    Type: Grant
    Filed: September 21, 2011
    Date of Patent: March 31, 2015
    Assignee: Dow Global Technologies LLC
    Inventors: Buo Chen, Bharat I. Chaudhary, Chester J. Kmiec, Jeffrey M. Cogen
  • Patent number: 8992987
    Abstract: Polysaccharide derivatives having a median Equivalent Projected Circle Diameter (EQPC) of less than 140 micrometers and a particle size and shape distribution meeting condition A or B or both are useful for preparing dosage forms, particularly for preparing compressed sustained-release dosage forms: A. non-compacted polysaccharide derivative particles have a flowability of at least 45 g/sec through a vertically inverted cone having a vertex angle of about 40 and an outlet diameter of about 50 mm, or B. i) no more than 40 volume percent of the polysaccharide derivative particles are fine particles having a particle length LEFI of less than 40 micrometers and ii) no more than 40 volume percent of the polysaccharide derivative particles are fibrous particles, and the sum of the fine particles and the fibrous particles does not exceed 50 volume percent.
    Type: Grant
    Filed: March 29, 2012
    Date of Patent: March 31, 2015
    Assignee: Dow Global Technologies LLC
    Inventors: Jennifer L'hote-Gaston, Nicholas S. Grasman, Jorg Theuerkauf, Sjoerd A. De Vries
  • Patent number: 8991027
    Abstract: The present invention is directed toward spiral wound modules along with methods for making and using the same. Several embodiments are described including methods for making spiral wound filtration modules using membrane sheet provided from a roll, wherein the membrane sheet is unrolled and assembled in a direction parallel to the permeate collection tube of the module.
    Type: Grant
    Filed: January 20, 2014
    Date of Patent: March 31, 2015
    Assignee: Dow Global Technologies LLC
    Inventors: Steven D. Jons, Allyn R. Marsh, III
  • Patent number: 8993638
    Abstract: Provided are biocidal compositions comprising: tris(hydroxymethyl)nitromethane; and a brominated nitroalkanol compound of formula I: wherein R1, R2, and R3 are as defined herein. The compositions are useful for controlling microorganisms in aqueous or water-containing systems.
    Type: Grant
    Filed: June 9, 2010
    Date of Patent: March 31, 2015
    Assignee: Dow Global Technologies LLC
    Inventor: Bei Yin
  • Patent number: 8993658
    Abstract: A surfactant composition selected from the group consisting of: ArO—(CH2CH[CH2CH3]O)1-10(CH2CH2O)5-50H, isomers, aromatic ring substituted analogs, and mixtures thereof; and an aqueous coating composition including an aqueous polymeric dispersion, and certain other compositions, including the surfactant composition are provided. Also provided are a method for forming a coating and a method for improving the freeze/thaw stability of an aqueous composition including an aqueous polymeric dispersion.
    Type: Grant
    Filed: April 18, 2013
    Date of Patent: March 31, 2015
    Assignee: Dow Global Technologies LLC
    Inventors: Irina V. Graf, Arkady L. Krasovskiy
  • Patent number: 8991235
    Abstract: The invention includes methods for testing membranes and membrane-based systems by introducing particles into a feed liquid passing across the surface of a membrane wherein the particles have a size larger than the nominal cut-off of the membrane, and measuring the presence of the particles within a permeate solution which passes through the membrane. In one embodiment, the particles are selected from those which dissolve within the permeate solution after being measured. In another embodiment, the particles are selected from inorganic salts. Many additional embodiments are disclosed.
    Type: Grant
    Filed: May 7, 2009
    Date of Patent: March 31, 2015
    Assignee: Dow Global Technologies LLC
    Inventor: Steven D. Jons
  • Patent number: 8991039
    Abstract: A process for manufacturing a multilayer article, the article comprising two crosslinked semiconductive layers separated by and bonded to an insulation layer, the semiconductive layers formed from a peroxide-crosslinkable olefin elastomer and the insulation layer comprising composition comprising a silane-grafted olefinic elastomer, the process comprises the steps of: (A) injecting the silane-grafted olefinic elastomer between the two crosslinked semiconductive layers so as to have direct contact with each semiconductive layer, and (B) crosslinking the silane-grafted olefinic elastomer in the absence of a peroxide catalyst.
    Type: Grant
    Filed: September 21, 2011
    Date of Patent: March 31, 2015
    Assignee: Dow Global Technologies LLC
    Inventors: Mohamed Esseghir, Jeffrey M. Cogen, Saurav S. Sengupta
  • Publication number: 20150087749
    Abstract: A curable composition including (a) at least one divinylarene dioxide; (b) at least one phenol, wherein the phenol is unsubstituted at a 2-, 4-, or 6-phenolic ring position; and (c) at least one acid compound-related cure catalyst; and a cured product made from the above curable composition.
    Type: Application
    Filed: May 23, 2013
    Publication date: March 26, 2015
    Applicant: Dow Global Technologies LLC
    Inventor: Maurice J. Marks
  • Publication number: 20150087787
    Abstract: 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: Application
    Filed: February 22, 2013
    Publication date: March 26, 2015
    Applicants: Dow Global Technologies LLC, GnoSys Global Ltd., University of Southampton
    Inventor: Simon Sutton
  • Publication number: 20150083651
    Abstract: Cross-flow filtration systems and corresponding methods for separation particulate matter from liquids. A representative system includes a cross-flow filtration zone (24) in fluid communication with a particulate settling zone (30) and further includes a fluid inlet (14) in fluid communication with one of the zones and a process fluid outlet (20) and in fluid communication with the other zone. A fluid treatment pathway (28) extends from the fluid inlet (14), through the cross-flow filtration and particulate settling zones (24, 30) to the process fluid outlet (20). A filter assembly (26) is located within the cross-flow filtration zone (24) and comprises a membrane surface (44) that isolates a filtrate chamber (46) from the fluid treatment pathway (28), and the filtrate chamber (46) is in fluid communication with a filtered fluid outlet (16). A recirculation pump (Z) in fluid communication with the process fluid outlet (20) and fluid inlet (14).
    Type: Application
    Filed: May 22, 2013
    Publication date: March 26, 2015
    Applicant: Dow Global Technologies LLC
    Inventors: Steven D. Jons, John H. Mallard
  • Patent number: 8987385
    Abstract: A polymer comprises units derived from ethylene and polyalkylene, the 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: March 24, 2015
    Assignee: Dow Global Technologies LLC
    Inventors: Mehmet Demirors, Teresa P. Karjala, Otto J. Berbee, Cornelis F. J. den Doelder, John O. Osby
  • Patent number: 8987597
    Abstract: The present disclosure provides a composition which includes a thermoplastic elastomer and a flame retardant composed of a metal hydrate and an oligomeric phosphate ester. The weight ratio of metal hydrate to oligomeric phosphate ester is greater than 1.45:1. The composition may be a component of an article such as a coated wire or a coated cable, with the composition present in the coating.
    Type: Grant
    Filed: July 31, 2009
    Date of Patent: March 24, 2015
    Assignee: Dow Global Technologies LLC
    Inventors: Xiang Y. Tai, Wei G. Yao, Yu D. Qi, Given J. Chen, Robert F. Eaton
  • Patent number: 8987506
    Abstract: A process including contacting one or more Strecker sulfonation reaction products of one or more halogenated alkyl ethers in the presence of sulfite with one or more polar water soluble organic solvents selected from acetone, methyl ethyl ketone, the C2-C5 alkyl alcohols, and the like, to form an extraction mixture; allowing the extraction mixture to separate into an aqueous phase and an organic phase; and separating the aqueous phase from the organic phase; wherein the one or more Strecker sulfonation reaction products each comprise at least 30 percent by weight of one or more inorganic salts and the organic phase following separation comprises less than 20 percent by weight of one or more inorganic salts, is provided.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: March 24, 2015
    Assignee: Dow Global Technologies LLC
    Inventor: Edward D. Daugs
  • Patent number: 8985840
    Abstract: Mixing apparatus and methods for the continuous production of monomer emulsions that may be used in the production of polymer dispersions by radical aqueous emulsion polymerization. The mixing apparatus can include a pipe-in-pipe injector (100) and a suitable rotor-stator mixer (102). Liquids are delivered to the rotor-stator mixer via an inner (110) and an outer (108) pipe in such a way as to substantially prevent feed inconsistencies in a feed ratio of the liquids prior to entering a mixing zone of the rotor-stator mixer for emulsion formation.
    Type: Grant
    Filed: June 24, 2009
    Date of Patent: March 24, 2015
    Assignee: Dow Global Technologies LLC
    Inventors: Kenneth W. Hester, Daniel R. Stanley, Mark S. Riddle, Mark A. Greschaw, Dennis D. Hacker
  • Patent number: 8987382
    Abstract: The present invention is a method for increasing the melt strength of a polyethylene resin comprising reacting the polyethylene resin with a free radical generator with a decomposition energy in between ?50 kJoule/mole and ?250 kJoules/mole and a peak decomposition temperature of less than 280 degree C. The resulting resin has increased melt strength with higher ratio of elongational viscosities at 0.1 to 100 rad/s when compared to substantially similar polyethylene resins which have not been reacted with a free radical generator such as an alkoxy amine derivative.
    Type: Grant
    Filed: January 11, 2011
    Date of Patent: March 24, 2015
    Assignee: Dow Global Technologies LLC
    Inventors: Mehmet Demirors, Teresa Karjala, Nicolas Mazzola
  • Patent number: 8986760
    Abstract: Described are methods of providing a shelf-stable probiotic-containing food or beverage, comprising forming a semi-permeable microsphere, said microsphere comprising a probiotic, a high molecular weight polymer, and an effective amount of bacteriostatic agent.
    Type: Grant
    Filed: September 6, 2011
    Date of Patent: March 24, 2015
    Assignee: Dow Global Technologies LLC
    Inventors: Liang Hong, Kathy L. Lichtenwald, Krishna Madduri, Syed A. Shah, Christopher J. Tucker, Caroline Woelfle
  • Patent number: 8987401
    Abstract: Methods of producing a composition comprising a crosslinkable silane-terminated polymer having at least one crosslinkable silyl group in each molecule are provided.
    Type: Grant
    Filed: June 14, 2012
    Date of Patent: March 24, 2015
    Assignee: Dow Global Technologies LLC
    Inventors: Kamesh R. Vyakaranam, Ling Zhang, Venkat S. Minnikanti, Rajat Duggal, William A. Koonce, Amarnath Singh, Phillip S. Athey