Patents Represented by Attorney Gary C. Cohn PLLC
  • Patent number: 8324288
    Abstract: Extruded polymer foams are prepared using brominated fatty acids, an ester, amide or ester-amide of a brominated fatty acid, a glyceride of one or more brominated fatty acids, or a polymerized brominated fatty acid as an FR additive. The brominated FR additives unexpectedly are stable at the extrusion temperatures, and provide excellent flame retardancy to the foams.
    Type: Grant
    Filed: November 30, 2011
    Date of Patent: December 4, 2012
    Assignee: Dow Global Technologies LLC
    Inventors: William J. Kruper, Jr., David R. Arrowsmith, Duane R. Romer, Bruce M. Bell, William G. Stobby, Inken Beulich, Zenon Lysenko, John Gordon-Duffy, Chau V. Vo
  • Patent number: 8318829
    Abstract: Polyether polyols are initiated with methylene bis(cyclohexylamines). The polyols are useful in making rigid polyurethane foams, especially foams for pour-in-place applications, where they give a good combination of low k-factor and short demold times.
    Type: Grant
    Filed: June 5, 2009
    Date of Patent: November 27, 2012
    Assignee: Dow Global Technologies LLC
    Inventors: Timothy A. Morley, Francois M. Casati, Adrian J. Birch
  • Patent number: 8318828
    Abstract: Polyether polyols are initiated with 1,3- or 1,4-bis(aminomethyl)cyclohexanes. The polyols are useful in making rigid polyurethane foams, especially foams for pour-in-place applications, where they give a good combination of low k-factor and short demold times.
    Type: Grant
    Filed: June 5, 2009
    Date of Patent: November 27, 2012
    Assignee: Dow Global Technologies LLC
    Inventors: Timothy A. Morley, Francois M. Casati, Adrian J. Birch
  • Patent number: 8318826
    Abstract: Polyether polyols are initiated with orthocyclohexanediamines such as 1,2-diaminocyclohexane. The polyols are useful in making rigid polyurethane foams, especially foams for pour-in-place applications, where they give a good combination of low k-factor and short demold times.
    Type: Grant
    Filed: January 30, 2008
    Date of Patent: November 27, 2012
    Assignee: Dow Global Technologies LLC
    Inventors: Timothy A. Morley, Francois M. Casati, Adrian J. Birch, David A. Babb, Charles A. Martin, II
  • Patent number: 8304492
    Abstract: A polybutadiene brominating method uses a quaternary ammonium tribromide as the brominating agent. The brominating is performed in solution, and dual extractions recover the spent brominating agent and recombine it with fresh bromine to regenerate an active tribromide. Solvent and aqueous extraction streams can be purified and recycled as needed.
    Type: Grant
    Filed: April 3, 2009
    Date of Patent: November 6, 2012
    Assignee: Dow Global Technologies LLC
    Inventors: Douglas C. Greminger, Ronald B. Leng, William G. Stobby, Shari I. Kram
  • Patent number: 8268954
    Abstract: Polyester-carbonate copolymers are prepared by copolymerizing lactide with a 1:4-3:6 dianhydrohexitol in the presence of a carbonate precursor and a polymerization catalyst. The copolymers have an elevated glass transition temperature, relative to polylactide resins.
    Type: Grant
    Filed: August 7, 2008
    Date of Patent: September 18, 2012
    Assignee: NatureWorks LLC
    Inventor: Joseph David Schroeder
  • Patent number: 8242183
    Abstract: Certain brominated polymers compounds are effective FR additives for combustible organic polymers. These FR additives include: i) a copolymer having styrene and 2,3-dibromopropylmaleimide repeating units; ii) a brominated polyester having aliphatically bound bromine; iii) an allyl ether of a ring-brominated novolac resin; iv) a 3-bromo-2-hydroxypropyl ether of a novolac resin; v) a 2,3-dibromopropyl ether of a cresol novolac resin; and vi) a brominated ROMP polymer or copolymer.
    Type: Grant
    Filed: January 30, 2009
    Date of Patent: August 14, 2012
    Assignee: Dow Global Technologies LLC
    Inventors: Bruce A. King, Anteneh Z. Worku, William G. Stobby
  • Patent number: 8202945
    Abstract: Butadiene copolymers are brominated using certain quaternary ammonium tribromides as the brominating agent. The bromination process proceeds easily under mild conditions, and produces a brominated product that has excellent thermal stability.
    Type: Grant
    Filed: August 14, 2007
    Date of Patent: June 19, 2012
    Assignee: Dow Global Technologies LLC
    Inventors: Bruce A. King, David B. Gorman, John W. Hull, Jr., Daniel J. Murray, Terry L. Gehrman
  • Patent number: 8193287
    Abstract: Butadiene copolymers are brominated using certain quaternary ammonium tribromides as the brominating agent. The bromination process proceeds easily under mild conditions, and produces a brominated product that has excellent thermal stability. A quaternary ammonium monobromide salt is produced as a reaction by-product. A solvent for the monobromide salt is added to the reaction after 25-90% bromination of the aliphatic carbon-carbon double bonds. This provides for significantly shorter reaction times while providing a product with few impurities.
    Type: Grant
    Filed: February 25, 2009
    Date of Patent: June 5, 2012
    Assignee: Dow Global Technologies LLC
    Inventor: David B. Gorman
  • Patent number: 8193257
    Abstract: Polyether polyols are initiated with aminocyclohexanealkylamines such as isophoronediamine and 1,8-diaminop-menthane. The polyols are useful in making rigid polyurethane foams, especially foams for pour-in-place applications, where they give a good combination of low k-factor and short demold times.
    Type: Grant
    Filed: December 11, 2007
    Date of Patent: June 5, 2012
    Assignee: Dow Global Technologies LLC
    Inventors: Timothy A. Morley, Francois M. Casati, Adrian J. Birch, David A. Babb, Charles A. Martin, II
  • Patent number: 8181907
    Abstract: A wing-drive mechanism is described that permits, with proper control, movement of a wing about multiple wing trajectories. The wing-drive is capable of independent movement about three rotational degrees of movement; movement about a flap axis is independent of movement about a yaw axis, and both are independent of changes in the pitch of the wing. Methods of controlling the wing-drive mechanism to affect a desired wing trajectory include the use of a non-linear automated controller that generates input signals to the wing-drive mechanism by comparing actual and desired wing trajectories in real time. Specification of wing trajectories is preferably also accomplished in real time using an automated trajectory specification system, which can include a fuzzy logic processor or a neural network.
    Type: Grant
    Filed: August 17, 2004
    Date of Patent: May 22, 2012
    Inventor: Michael J. C. Smith
  • Patent number: 8183321
    Abstract: Polylactide resins are blended with core-shell rubber particles to improve impact strength. A good balance of impact strength and transparency is achieved when the rubber particles are distributed within the polymer matrix such that most of them exist as single particles or agglomerates having a diameter of 150 nanometers or more, and the number average size of the particles and agglomerates is not more than 210 nanometers.
    Type: Grant
    Filed: October 18, 2007
    Date of Patent: May 22, 2012
    Assignee: NatureWorks LLC
    Inventors: Laura Mae Babcock, David E. Henton, Fasil A. Tadesse
  • Patent number: 8182725
    Abstract: PLA stereocomplex fibers are made by separately melting a high-D PLA starting resin and a high-L starting resin, mixing the melts and spinning the molten mixture. Subsequent heat treatment introduces high-melting “stereocomplex” crystallinity into the fibers. The process can form fibers having a high content of “stereocomplex” crystallites that have a high melting temperature. As a result, the fibers have excellent thermal resistance. The process is also easily adaptable to commercial melt spinning operations.
    Type: Grant
    Filed: September 26, 2008
    Date of Patent: May 22, 2012
    Assignee: NatureWorks LLC
    Inventors: Robert A. Green, Chad Henry Kamann, Jeffrey John Kolstad
  • Patent number: 8163336
    Abstract: Layers of a passivating material and/or containing luminescent centers are deposited on phosphor particles or particles that contain a host material that is capable of capturing an excitation energy and transferring it to a luminescent center or layer. The layers are formed in an ALD process. The ALD process permits the formation of very thin layers. Coated phosphors have good resistance to ambient moisture and oxygen, and/or can be designed to emit a distribution of desired light wavelengths.
    Type: Grant
    Filed: February 19, 2010
    Date of Patent: April 24, 2012
    Inventors: Alan W. Weimer, Steven M. George, Karen J. Buechler, Joseph A. Spencer, II, Jarod McCormick
  • Patent number: 8137953
    Abstract: Yeast cells having an exogenous lactate dehydrogenase gene ae modified by reducing L- or D-lactate:ferricytochrome c oxidoreductase activity in the cell. This leads to reduced consumption of lactate by the cell and can increase overall lactate yields in a fermentation process. Cells having the reduced L- or D-lactate:ferricytochrome c oxidoreductase activity can be screened for by resistance to organic acids such as lactic or glycolic acid.
    Type: Grant
    Filed: November 17, 2006
    Date of Patent: March 20, 2012
    Assignee: Cargill Inc.
    Inventors: Matthew Miller, Pirkko Suominen, Aristos Aristidou, Benjamin Matthew Hause, Pim Van Hoek, Catherine Asleson Dundon
  • Patent number: 8133531
    Abstract: Titanium dioxide particles are coated first with an interstitial coating and then with silicon dioxide or alumina. The coatings are suitably applied via an atomic layer deposition process. The interstitial coating preserves the bright white coloration of the particles after they are coated. The particles therefore can be used as pigments and white fillers in polymers, paints, paper and other applications.
    Type: Grant
    Filed: March 6, 2009
    Date of Patent: March 13, 2012
    Assignee: The Regents of the University of Colorado
    Inventors: David M. King, Alan W. Weimer
  • Patent number: 8133420
    Abstract: Expandable polymer compositions are used to reinforce or provide various types of insulation to cavities in structural elements. The polymer compositions include at least two different segments, which may or may not be joined. At least one of the segments will expand before another segment when heated. The first-to-expand segment forms a physical barrier to the expansion of later-expanding segments, thereby restricting the expansion of the later-expanding segment in at least one direction. In this manner, the location of the expanded polymer within the cavity can be easily and inexpensively controlled.
    Type: Grant
    Filed: August 9, 2007
    Date of Patent: March 13, 2012
    Assignee: Dow Global Technologies LLC
    Inventors: Frank V. Billotto, Mark P. Allen, Frank J. Flavin
  • Patent number: 8133419
    Abstract: Vehicle headliners are prepared with a core layer of a fiber-reinforced polyurethane foam. The polyurethane foam is prepared from a polyurethane-forming composition that uses water as a blowing agent and polyol or polyol mixture that has a high functionality and an average hydroxyl equivalent weight of 100-130. The selection of polyols permits cycle times to be reduced by allowing for faster demolding and shortened aging times before post-molding heat lamination steps can be performed.
    Type: Grant
    Filed: December 15, 2006
    Date of Patent: March 13, 2012
    Assignee: Dow Global Technologies LLC
    Inventors: Stephen R. Burks, Rogelio R. Gamboa, Richard G. McNeil, K. Joanne Bladon, Armando Esau Toledo Gonzalez
  • Patent number: 8114939
    Abstract: Metal catalyst residues in resins containing polymerized lactic acid units, such as polylactides, are deactivated by treatment with a polymer or copolymer that contain pendant acid groups and pendant ester groups, with an acid-containing PLA resin, or with a polymer or copolymer having at least one acid groups per 250 atomic mass units and which has pendant lactic acid or poly(lactic acid) groups. The deactivating agent is effective at deactivating the catalyst, and has little effect on the optical clarity of the resin.
    Type: Grant
    Filed: May 12, 2008
    Date of Patent: February 14, 2012
    Assignee: NatureWorks LLC
    Inventors: Laura M. Babcock, Joseph D. Schroeder
  • Patent number: 8114943
    Abstract: Butadiene copolymers are brominated in solution using bromine as the brominating agent. The bromination is conducted in the presence of an excess of an aliphatic alcohol, relative to the amount of bromine that is used. The bromination proceeds rapidly at mild conditions, and is selective in that only aliphatic carbon-carbon double bonds are brominated, and unwanted bromination at tertiary carbon atoms is largely or completely avoided. The resulting brominated polymers are characterized in having very good thermal stability.
    Type: Grant
    Filed: August 14, 2007
    Date of Patent: February 14, 2012
    Assignee: Dow Global Technologies LLC
    Inventors: Daniel J. Murray, David B. Gorman, John W. Hull, Jr., William J. Kruper, Jr., Ted A. Morgan, Bruce A. King, Ronald B. Leng