Patents Represented by Attorney W. J. Lee

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  • Wettable olefin polymer fibers
    Patent number: 4578414
    Abstract: Wettable fibers and/or filaments, especially those of fine denier, are prepared from olefin polymers, especially linear low density copolymer (LLDPE), by having incorporated into said olefin polymer at least one wetting agent of the group comprising (a) an alkyoxylated alkyl phenol along with a mixed mono-, di-, and/or tri-glyceride, or (b) a polyoxalkylene fatty acid ester, or (c) a combination of (b) and any part of (a) above.
    Type: Grant
    Filed: February 19, 1985
    Date of Patent: March 25, 1986
    Assignee: The Dow Chemical Company
    Inventors: Lawrence H. Sawyer, George W. Knight
  • Treatment of contaminated Stretford solution
    Patent number: 4572788
    Abstract: A side-stream portion of a Stretford Process solution is taken from the main-stream in order to reduce the amount of deleterious side-products in the solution and the ADA values and vanadium values are salvaged from the side-stream by taking up the ADA values on activated charcoal and the vanadium values in an anion exchange resin. The ADA and vanadium values are recovered for re-cycling back to the Stretford Process.
    Type: Grant
    Filed: December 24, 1984
    Date of Patent: February 25, 1986
    Assignee: The Dow Chemical Company
    Inventor: Richard A. Wolcott
  • Chromium oxide in ion exchange resin
    Patent number: 4569765
    Abstract: Novel anion exchange resin composites having hydrous chromium III oxide (Cr.sub.2 O.sub.3.nH.sub.2 O) incorporated therein are useful in removing a wide array of polyvalent metal cations from aqueous solution.
    Type: Grant
    Filed: February 1, 1984
    Date of Patent: February 11, 1986
    Assignee: The Dow Chemical Company
    Inventor: Alvin F. Beale, Jr.
  • Salt-coated magnesium granules
    Patent number: 4559084
    Abstract: Small rotund magnesium (or Mg alloy) granules dispersed in a friable salt matrix are obtained by preparing a molten salt mixture containing molten magnesium (or Mg alloy) stirring to effect good dispersion, and cooling the molten mixture to effect freezing of the magnesium (or Mg alloy) as small rotund globules dispersed in a solid friable matrix.
    Type: Grant
    Filed: March 3, 1983
    Date of Patent: December 17, 1985
    Assignee: The Dow Chemical Company
    Inventors: Edward J. Skach, Jr., George B. Cobel
  • Bonded asbestos diaphragms
    Patent number: 4557810
    Abstract: The hydrophilicity and other properties of fluoropolymer-bonded asbestos diaphragms for use in brine electrolysis cells are improved by incorporating Na.sub.2 CO.sub.3 into the aqueous slurry from which the diaphragms are prepared.
    Type: Grant
    Filed: December 7, 1984
    Date of Patent: December 10, 1985
    Assignee: The Dow Chemical Company
    Inventors: Richard N. Beaver, Kenneth R. Evans, Donald D. Waters
  • Bonded asbestos diaphragms
    Patent number: 4530749
    Abstract: The hydrophilicity and other properties of fluoropolymer-bonded asbestos diaphragms for use in brine electrolysis cells are improved by incorporating Na.sub.2 CO.sub.3 into the aqueous slurry from which the diaphragms are prepared.
    Type: Grant
    Filed: June 5, 1981
    Date of Patent: July 23, 1985
    Assignee: The Dow Chemical Company
    Inventors: Richard N. Beaver, Kenneth R. Evans, Donald D. Waters
  • Olefin polymers containing amides and inorganics
    Patent number: 4529764
    Abstract: Blown films of LLDPE having reduced block and increased slip are provided by incorporating into the polymer, before blowing into films, effective amounts of certain fatty acid amides and inorganic materials which provide fast bloom, thereby obtaining an expedient effect of the additives on the surface properties of the blown film.
    Type: Grant
    Filed: January 30, 1984
    Date of Patent: July 16, 1985
    Assignee: The Dow Chemical Company
    Inventors: Osborne K. McKinney, David P. Flores
  • Removal of Mg.sup.++ and Ca.sup.++ ions from NaCl brine
    Patent number: 4522951
    Abstract: Alkaline earth metal ions, e.g., Mg.sup.++ and/or Ca.sup.++, are removed from alkali metal brines, e.g., NaCl, by use of a particulate, macroporous, anion exchange resin containing the in-situ reaction product of polymeric, amorphous, hydrous zirconium oxide and a source of PO.sub.4.sup.--- ions, e.g., H.sub.3 PO.sub.4.
    Type: Grant
    Filed: September 19, 1983
    Date of Patent: June 11, 1985
    Assignee: The Dow Chemical Company
    Inventors: John M. Lee, William C. Bauman
  • Rotary cooling table
    Patent number: 4519758
    Abstract: A horizontally positioned rotating table is provided with a rotation means, a means for feeding molten material to the topside of the table as it is rotated, a means for cooling the molten material, and a means for scraping the cooled material from the table. This table is especially useful in continuously receiving a molten salt containing molten metal, cooling it to a friable solid, and scraping the friable solid from the table for further processing.
    Type: Grant
    Filed: July 29, 1983
    Date of Patent: May 28, 1985
    Assignee: The Dow Chemical Company
    Inventor: Edward J. Skach, Jr.
  • Lithium stearate aluminate as lubricant additive
    Patent number: 4519924
    Abstract: Crystalline lithium stearate aluminate improves the coefficient of friction, the antiwear properties and the extreme pressure properties of lubricating fluids.
    Type: Grant
    Filed: June 11, 1984
    Date of Patent: May 28, 1985
    Assignee: The Dow Chemical
    Inventor: Kishore K. Kar
  • Treatment of contaminated Stretford solution
    Patent number: 4518504
    Abstract: A side-stream portion of a Stretford Process solution is taken from the main-stream in order to reduce the amount of deleterious side-products in the solution and the ADA values and vanadium values are salvaged from the side-stream by taking up the ADA values on activated charcoal and the vanadium values in an anion exchange resin. The ADA and vanadium values are recovered for re-cycling back to the Stretford Process.
    Type: Grant
    Filed: March 11, 1983
    Date of Patent: May 21, 1985
    Assignee: The Dow Chemical Company
    Inventor: Richard A. Wolcott
  • Fluoride-substituted cobalt spinels
    Patent number: 4514518
    Abstract: A new and useful family of compounds is prepared by fluoride substitution into a cobalt oxide spinel, the new compounds conforming substantially to the empirical formula Co.sub.3 O.sub.x F.sub.y or M.sub.1 'M.sub.2 "--M.sub.i.sup.n Co.sub.(3-.SIGMA.) O.sub.x F.sub.y, where x+2y.congruent.4, where y is an amount such that F.ltoreq.2 wt. % of the compound, and where M.sub.1, M.sub.2, and M.sub.i each represent metal values other than Co. Thus the cobalt oxide spinel may be a single-metal spinel, a bimetal spinel, a trimetal spinel, or a polymetal spinel.
    Type: Grant
    Filed: April 22, 1982
    Date of Patent: April 30, 1985
    Assignee: The Dow Chemical Company
    Inventors: Walter W. Henslee, Stephen I. Foster
  • Halide removal from fluid organic materials
    Patent number: 4511710
    Abstract: Unwanted halogen values are removed from liquid resin, organic or hydrocarbon material by adding particulate crystalline lithium aluminate compounds to the liquid material to act as a halogen scavenger, then separating the crystalline aluminate compound from the liquid material.
    Type: Grant
    Filed: June 11, 1984
    Date of Patent: April 16, 1985
    Assignee: The Dow Chemical Company
    Inventors: Chun S. Wang, Kyle B. Benkendorfer, John L. Burba, III
  • Recovery of fumed SiO.sub.2
    Patent number: 4508538
    Abstract: A method of recovering fumed hydrophobic SiO.sub.2, produced by the flame hydrolysis of a ternary azeotrope of H.sub.2 SiF.sub.6, HF, and H.sub.2 O, is disclosed. The method involves passing the fumed hydrophobic silica, as it leaves the combustion chamber, through a nonclassifying agglomerator at a residence (travel) time of from about 0.5 to several seconds, preferably about 1.0 to about 5.0 seconds, then separating the fumed silica from the product stream in a cyclone separator or other means for collecting dispersoids.
    Type: Grant
    Filed: December 4, 1980
    Date of Patent: April 2, 1985
    Assignee: The Dow Chemical Company
    Inventors: Joel F. M. Leathers, Donald W. Calvin
  • Production of round salt coated metal granules
    Patent number: 4500349
    Abstract: Molten salt containing molten metal is continuously feed to the top side of a horizontal rotating table. As the table rotates the mixture is cooled to a friable solid which is then scraped from the table. Salt coated metal granules are produced which are round in shape and not elongated.
    Type: Grant
    Filed: July 29, 1983
    Date of Patent: February 19, 1985
    Assignee: The Dow Chemical Company
    Inventor: Edward J. Skach, Jr.
  • Stabilized carboxyl-containing ethylene interpolymers
    Patent number: 4500664
    Abstract: The antioxidative degradation process, and/or color stability of carboxyl-containing ethylene interpolymers is improved by incorporating therein at least one aromatic bis(organophosphorus) compound, with or without a hindered phenol antioxidant and/or a dicarboxylic acid.
    Type: Grant
    Filed: August 31, 1983
    Date of Patent: February 19, 1985
    Assignee: The Dow Chemical Company
    Inventors: Osborne K. McKinney, David P. Flores
  • Removal of sulfate ions from brine
    Patent number: 4488949
    Abstract: Macroporous cation exchange resins with sulfonic acid functional groups having polymeric hydrous zirconium oxide and polyacrylic acid contained therein are useful in substantially removing sulfate, borate, bicarbonate and/or phosphate ions from alkali metal salt solutions.
    Type: Grant
    Filed: September 19, 1983
    Date of Patent: December 18, 1984
    Assignee: The Dow Chemical Company
    Inventors: John M. Lee, William C. Bauman
  • Fog-resistant olefin polymer films
    Patent number: 4486552
    Abstract: An ethylene polymer, especially a linear low density ethylene polymer, is mixed with certain antifog agents to provide a film-forming composition for making packaging films which resist fogging. The antifog agents are (1) an alkoxylated alkyl phenol along with a mixed mono-, di-, and/or triglyceride, (2) a polyoxyalkylene fatty acid ester, and (3) a combination of (2) and any part of (1). Optionally, a tackifier is added.
    Type: Grant
    Filed: February 28, 1983
    Date of Patent: December 4, 1984
    Assignee: The Dow Chemical Company
    Inventor: Debra H. Niemann
  • Higher density ion exchange resins of metal compound precipitated within pores
    Patent number: 4477597
    Abstract: Macroporous ion exchange resins having increased apparent density are provided by incorporating into said resins a weighting agent which is of greater apparent density than the resin itself. Such weighted resins exhibit reduced bed expansion when used with upflow streams, with relatively dense liquids, and with relatively viscous liquids.
    Type: Grant
    Filed: October 2, 1981
    Date of Patent: October 16, 1984
    Assignee: The Dow Chemical Company
    Inventors: John M. Lee, William C. Bauman, Richard A. Wolcott, John L. Burba, III
  • Crystalline 2-layer lithium-hydroxy aluminates
    Patent number: 4477367
    Abstract: Crystalline 2-layer LiOH.2Al(OH).sub.3.nH.sub.2 O, preferably supported by a porous substrate, is prepared by treating crystalline 2-layer LiX.2Al(OH).sub.3.nH.sub.2 O, where X is anion, with a LiOH solution or other hydroxide ion source. The so-formed crystalline 2-layer LiOH.2Al(OH).sub.3.nH.sub.2 O is particularly suitable for exchange of the OH ion with larger X' ions to produce other crystalline 2-layer LiX'.2Al(OH).sub.3.nH.sub.2 O.
    Type: Grant
    Filed: August 30, 1982
    Date of Patent: October 16, 1984
    Assignee: The Dow Chemical Company
    Inventor: John L. Burba, III