Patents Represented by Attorney Robert D. Jackson
  • Patent number: 5643591
    Abstract: A composition for agricultural and other actives, comprising a finely-divided particulate combination of microcrystalline cellulose, at least one nitrogen compound such as urea, an ammonium sulfate or phosphate and, optionally, a suspending agent for the microcrystalline cellulose. The composition can be compacted to form shaped, solid dosage forms such as tablets which disintegrate rapidly in an aqueous medium.
    Type: Grant
    Filed: April 20, 1994
    Date of Patent: July 1, 1997
    Assignee: FMC Corporation
    Inventors: Dev K. Mehra, Nagui I. Ibrahim, Edwin G. Fleck, Jr.
  • Patent number: 5368741
    Abstract: Aqueous phosphorus wastes from the electric furnace production of phosphors and containing heavy metal bearing particulates are treated with lime whereby the phosphorus is converted into useful phosphorus compounds and the heavy metals rendered sufficiently non-leachable to permit their release into the environment. The treatment is conducted above about 60.degree. C. at a pH of between about 11.0 to 12.5.
    Type: Grant
    Filed: October 12, 1993
    Date of Patent: November 29, 1994
    Assignee: FMC Corporation
    Inventors: Theodore F. Munday, Jay R. Brummer, Paul J. Beck
  • Patent number: 5326572
    Abstract: Freeze-dried polymer latices, which can be reconstituted in water to give aqueous polymer dispersions having high polymer solids content, are described. The reconstituted polymer dispersions are useful in preparing sustained-release drug formulations, particularly of water-soluble drugs, by the wet granulation method without over wetting.
    Type: Grant
    Filed: March 5, 1990
    Date of Patent: July 5, 1994
    Assignee: FMC Corporation
    Inventors: Dev K. Mehra, Chimanlal I. Patel, Clayton I. Bridges, Jr.
  • Patent number: 5289982
    Abstract: A disk reclaimer, having spring mounted harrow and carrier teeth, is described. The spring loaded teeth are less subject to binding or breakage when reclaiming highly cohesive bulk materials such as phosphate shales.
    Type: Grant
    Filed: March 11, 1993
    Date of Patent: March 1, 1994
    Assignee: FMC Corporation
    Inventor: Ronald L. Andersen
  • Patent number: 5272191
    Abstract: The rate of disintegration in cold water of water soluble packaging films is improved by incorporating into a film forming polymer composition, to form a dry blend or aqueous dispersion, a substantially water insoluble cellulose material prepared from alkali metal salts of carboxy(lower alkyl) cellulose or hydroxy(lower alkyl) cellulose. The increased disintegration is achieved without loss of film stability and, in some cases, the film stability is improved.
    Type: Grant
    Filed: August 21, 1991
    Date of Patent: December 21, 1993
    Assignee: FMC Corporation
    Inventors: Nagui I. Ibrahim, Richard M. Herbert
  • Patent number: 5258436
    Abstract: A water dispersible polymeric film-forming particulate composition for use in coating pharmaceuticals and foods or the like, produced by freeze-drying an aqueous solution of water-soluble cellulose acetate as the film-forming polymer, a plasticizer, and optionally a pigment, is described. The product mixes readily with water to form an aqueous dispersion which is applied in the conventional manner to solid pharmaceutical forms.
    Type: Grant
    Filed: September 23, 1991
    Date of Patent: November 2, 1993
    Assignee: FMC Corporation
    Inventors: Thomas A. Wheatley, Clayton I. Bridges, Jr., Carl R. Steuernagel
  • Patent number: 5248516
    Abstract: A water dispersible film-forming particulate composition for use in coating pharmaceuticals and foods or the like, produced by freeze-drying an aqueous solution of a water-soluble polymer, a plasticizer, and optionally a pigment, is described. The product mixes readily with water to form an aqueous dispersion which is applied in the conventional manner to solid pharmaceutical forms.
    Type: Grant
    Filed: September 12, 1991
    Date of Patent: September 28, 1993
    Assignee: FMC Corporation
    Inventors: Thomas A. Wheatley, Clayton I. Bridges, Jr., Carl R. Steuernagel
  • Patent number: 5206030
    Abstract: A water-dispersible, particulate film-forming composition is produced by blending a mixture of particles of water-soluble cellulose acetate; pigment particles, a plasticizer for the water-soluble cellulose acetate, and a surfactant. The composition is useful as a film-forming material for coating solid pharmaceutical forms.
    Type: Grant
    Filed: February 26, 1990
    Date of Patent: April 27, 1993
    Assignee: FMC Corporation
    Inventors: Thomas A. Wheatley, Clayton I. Bridges, Jr., Carl R. Steuernagel
  • Patent number: 5198145
    Abstract: Dry-blended detergent formulations are prepared by absorbing liquid surfactant on absorptive soda ash derived from the dehydration of sodium carbonate decahydrate.
    Type: Grant
    Filed: December 6, 1991
    Date of Patent: March 30, 1993
    Assignee: FMC Corporation
    Inventors: Walter Lobunez, David Goldstein
  • Patent number: 5035871
    Abstract: A concentrated aqueous alkali metal polyphosphate solution is prepared by adding polyphosphoric acid having a P.sub.2 O.sub.5 assay of about 82% to about 85% to a quantity of concentrated aqueous alkali metal hydroxide sufficient to neutralize the acid. The resulting polyphosphate solution is richer in pyrophosphate and tripolyphosphate moieties than the acid.
    Type: Grant
    Filed: June 18, 1990
    Date of Patent: July 30, 1991
    Assignee: FMC Corporation
    Inventors: Charles F. Sikorski, John W. DeMarco
  • Patent number: 4992079
    Abstract: Low bulk density, soda ash-based, nonphosphate laundry detergents are prepared by (a) loading nonaqueous liquid surfactant onto substantially anhydrous, hydratable soda ash particles, (b) turbulently dispersing the surfactant-loaded particles into an inert gaseous medium while wetting the dispersed particles with an atomized stream of dilute aqueous sodium silicate or with separate atomized streams of water and concentrated aqueous sodium silicate, and (c) recovering the resultant particulate detergent. Preferably, natural soda ash is used in the process, and both nonionic and anionic surfactants are loaded onto the soda ash, in that order.
    Type: Grant
    Filed: December 27, 1988
    Date of Patent: February 12, 1991
    Assignee: FMC Corporation
    Inventor: Charles W. Lutz
  • Patent number: 4822583
    Abstract: Compacted shapes of phosphatic material, suitable as a charge for a phosphorus furnace, are produced by compacting a mixture of calcined phosphate fines and phosphoric acid. The compacted shapes are conveniently produced on a roll briquetting press.
    Type: Grant
    Filed: August 17, 1987
    Date of Patent: April 18, 1989
    Assignee: FMC Corporation
    Inventors: Joseph H. Finley, Lewis L. Hammermeister, Jared S. Sproul
  • Patent number: 4806326
    Abstract: Nodule fines, formed by abrasion of an electric furnace feed material of phosphate shale nodules, are utilized by mixing a recycle stream of the nodule fines with fresh phosphate in the presence of phosphoric acid prior to forming the shale into nodules. The phosphoric acid prevents loss in mechanical strength of the nodule caused by admixture with the nodule fines.
    Type: Grant
    Filed: August 17, 1987
    Date of Patent: February 21, 1989
    Assignee: FMC Corporation
    Inventor: Joseph H. Finley
  • Patent number: 4783328
    Abstract: Phosphorus values in the raffinate from wet acid purification and nodule fines from an electric phosphorus furnace are recovered as elemental phosphorus by forming briquettes with a bed of the raffinate and nodule fines, curing the briquettes and feeding the cured briquettes plus the requisite coke and silica fluxing agent into an electric phosphorus furnace.
    Type: Grant
    Filed: December 14, 1987
    Date of Patent: November 8, 1988
    Assignee: FMC Corporation
    Inventors: Joseph H. Finley, Richard E. Hall
  • Patent number: 4751066
    Abstract: Alkali metal phosphates are recovered from a water immiscible solvent solution of aqueous wet process phosphoric acid by neutralizing the acid with a basic alkali metal salt in a ratio of alkali metal to phosphorus of 1 to 3.5 to form at least the mono alkali metal phosphate. The solvent is given a water wash to recover entrained alkali metal phosphates. The resulting aqueous solution aforesaid and wash liquor containing the alkali metal salts are separated from the stripped solvent.
    Type: Grant
    Filed: May 8, 1986
    Date of Patent: June 14, 1988
    Assignee: FMC Corporation
    Inventors: Richard E. Hall, David P. Brochu
  • Patent number: 4713228
    Abstract: Heat is recovered from the phosphorus combustion chamber of a furnace phosphoric acid plant by placing in the combustion chamber a heat exchange surface having a protective meta acid coating thereon. Pressurized water can be used as a heat exchange fluid.
    Type: Grant
    Filed: November 4, 1986
    Date of Patent: December 15, 1987
    Assignee: FMC Corporation
    Inventors: Jonathan F. Shute, Harvey Rosenhouse
  • Patent number: 4698067
    Abstract: Formcoke is produced by introducing feedstocks of calcined coal particles, bituminous binder, an aqueous carbohydrate and phosphoric acid into a mixing zone. The resulting mixture is compacted into shapes, such as briquettes, which are then cured in an oxygen-containing atmosphere and optionally heated to coking temperatures.
    Type: Grant
    Filed: November 19, 1986
    Date of Patent: October 6, 1987
    Assignee: FMC Corporation
    Inventors: Joseph H. Finley, Richard R. Severns, Robert M. Zakotnik
  • Patent number: 4664896
    Abstract: In the process of purifying yellow phosphorus by treating liquid yellow phosphorus with active carbon and separating the purified phosphorus from the spent active carbon containing adhering phosphorus, the spent active carbon is mixed with sufficient liquid phosphorus to form a slurry which is pumped to a disposal zone. The disposal zone is preferably a phosphorus furnace.
    Type: Grant
    Filed: November 14, 1983
    Date of Patent: May 12, 1987
    Assignee: FMC Corporation
    Inventor: Richard E. Hall
  • Patent number: 4602917
    Abstract: Formcoke is produced by separately introducing feedstocks of calcined coal particles, bituminous binder and a carbohydrate, preferably an aqueous sugar, into a mixing zone. The resulting mixture is compacted into shapes, such as briquettes, which are then cured in an oxygen-containing atmosphere and optionally heated to coking temperatures.
    Type: Grant
    Filed: April 22, 1985
    Date of Patent: July 29, 1986
    Assignee: FMC Corporation
    Inventors: Joseph H. Finley, Richard R. Severns, Robert M. Zakotnik
  • Patent number: 4585865
    Abstract: 1-aza bicyclo [2.2.2.]oct-2-ene alcohols are used to form glycolic esters, useful as anticholinergic drugs, which have the formula ##STR1## wherein R.sub.1 is selected from the class consisting of phenyl and cyclopentyl; R.sub.2 represents a hydrocarbon radical of 3 to 6 carbon atoms; Z is selected from the class consisting of --CH.sub.2 --, --CH.sub.2 CH.sub.2 -- and --CH.sub.2 CH.dbd. and R.sub.3 represents an azacyclic ring.
    Type: Grant
    Filed: November 22, 1972
    Date of Patent: April 29, 1986
    Assignee: FMC Corporation
    Inventors: Gino R. Treves, Burton M. Baum