Patents by Inventor Alice P. Hudson

Alice P. Hudson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20080196463
    Abstract: A controlled release sulfur coated fertilizer with improved abrasion resistance is produced by applying a precursor coating that forms a cohesive film which adheres to the fertilizer substrate particles and to the sulfur that is subsequently applied in molten form. The improved fertilizer also optionally comprises a sealant coating applied after the molten sulfur. This invention is to the composition of the fertilizer and the method of production.
    Type: Application
    Filed: February 21, 2007
    Publication date: August 21, 2008
    Inventors: Alice P. Hudson, James E. Nevin
  • Patent number: 7387991
    Abstract: The compositions of this invention are microemulsions having a. a surfactant consisting essentially of a mixture of one or more alkoxylated amines or alkoxylated quaternary ammonium salts and one or more preferably branched carboxylic acids or salts thereof, b. a solvent or oil that is liquid at 25° C. and is insoluble in water, and c. water, wherein an optically clear isotropic microemulsion is formed.
    Type: Grant
    Filed: October 7, 2005
    Date of Patent: June 17, 2008
    Inventor: Alice P. Hudson
  • Patent number: 6599472
    Abstract: This invention provides oil soluble sulfhydryl compound scavengers which are salt compositions of the formula: Mn+(R—CO2−)x(OH)n−x wherein M is a metal ion whose sulfide salt is less than 0.1% soluble in water, n is 2 or 3, x is an integer from 1 to n, and R a hydrocarbyl radical containing from about 4 to about 19 carbon atoms, or mixture of these compositions. A method is also provided to control odors produced by sulfhydryl compounds wherein the he said sulfhydryl compounds are contacted with the metal salts described above.
    Type: Grant
    Filed: November 3, 2000
    Date of Patent: July 29, 2003
    Assignee: Surface Chemists of Florida Inc.
    Inventor: Alice P. Hudson
  • Patent number: 6300393
    Abstract: Insolubilizing agents are disclosed for pigment binders and surface sizes containing functional groups capable of reacting with carboxylic acid anhydride moieties to form chemical bonds. The insolubilizing agents are polymers or other compounds containing a plurality of carboxylic acid anhydride moieties per molecular entity. The anhydride moieties do not substantially hydrolyze or otherwise react until the paper coating is applied to the paper and dried and cured, at which time the anhydride moieties react with the functional groups of the pigment binder or surface size and render it water insoluble. A method to improve the water resistance and printability of coated paper using the insolubilizing agents of the invention is also disclosed.
    Type: Grant
    Filed: June 12, 2000
    Date of Patent: October 9, 2001
    Inventors: Alice P. Hudson, James E. Nevin
  • Patent number: 6059973
    Abstract: A method of reducing sulfide odors in wastewater collection and treatment systems. The method includes adding nitrate ions in the form of a controlled release composition and microbes to the wastewater effective to reduce hydrogen sulfide levels. The controlled release composition can be in the form of a water-in-oil emulsion. The microbes can be aerobic and facultative Bacillus species.
    Type: Grant
    Filed: July 1, 1999
    Date of Patent: May 9, 2000
    Inventors: Alice P. Hudson, Sasha J. Peggs
  • Patent number: 5984994
    Abstract: Sealant compositions for sulfur coated fertilizer particles are mixtures of wax materials and additives which provide improved moisture barrier properties and abrasion resistance. The sealants have penetration values measured by ASTM D-1321 of at least 20 at 25.degree. C., and congealing points measured by ASTM D-938 of between about 50.degree. C. and about 100.degree. C. The sealed fertilizer particles are conditioned with particulate materials with a surface area of at least about 2 m.sup.2 /g and an oil absorption of at least about 100%. A method for the production of abrasion resistant sulfur coated fertilizers is also disclosed.
    Type: Grant
    Filed: January 16, 1998
    Date of Patent: November 16, 1999
    Inventor: Alice P. Hudson
  • Patent number: 5958867
    Abstract: Sequestrant compositions comprising combinations of an alkali metal or ammonium borate with an adduct formed by reaction of an .alpha., .beta. unsaturated polycarboxylic acid with a mono- or dicarboxylated sugar, in which the adduct has at least two hydroxy groups in a vicinal configuration. The sequestrants can be used to complex alkaline earth and transition metal ions and are especially useful for complexing calcium and magnesium in aqueous laundry solutions. They also are effective for soil dispersion and for inhibiting the deposition of soil on fabric.
    Type: Grant
    Filed: May 21, 1998
    Date of Patent: September 28, 1999
    Assignee: U.S. Borax Inc.
    Inventors: Vincent Lamberti, Alice P. Hudson, Michael J. Greenhill-Hooper
  • Patent number: 5755990
    Abstract: Sequestrant compositions comprising combinations of an alkali metal or ammonium borate with an adduct formed by reaction of an .alpha., .beta. unsaturated polycarboxylic acid with a mono- or dicarboxylated sugar, in which the adduct has at least two hydroxy groups in a vicinal configuration. The sequestrants can be used to complex alkaline earth and transition metal ions and are especially useful for complexing calcium and magnesium in aqueous laundry solutions. They also are effective for soil dispersion and for inhibiting the deposition of soil on fabric.
    Type: Grant
    Filed: April 26, 1996
    Date of Patent: May 26, 1998
    Assignee: U.S. Borax Inc.
    Inventors: Vincent Lamberti, Alice P. Hudson
  • Patent number: 5750130
    Abstract: Granular pesticide compositions wherein a pesticide material is applied to a granular substrate using a carrier composition which provides improved adhesion of the pesticide to the substrate and abrasion resistance. The carrier composition may also provide controlled release of the pesticide.
    Type: Grant
    Filed: August 9, 1996
    Date of Patent: May 12, 1998
    Inventors: Paul Ferrell, Alice P. Hudson
  • Patent number: 5704961
    Abstract: Non-corrosive nitrogen containing fertilizer solutions are provided which contain effective levels of corrosion inhibitors which are monocarboxylic acids or polycarboxylic acids, or their salts, or mixtures thereof.
    Type: Grant
    Filed: October 17, 1996
    Date of Patent: January 6, 1998
    Inventor: Alice P. Hudson
  • Patent number: 5698002
    Abstract: Controlled release, particulate fertilizer products having a water soluble fertilizer central mass encased in a plurality of water insoluble, abrasion resistant coatings plus coating compositions and methods for the production of such products are disclosed. At least one essential inner coating is an epoxide reaction product ofA. at least one epoxide resin containing at least about 2 epoxide moieties per molecule, andB. at least one amine curing agent containing at least about two N--H moieties/molecule.
    Type: Grant
    Filed: November 21, 1994
    Date of Patent: December 16, 1997
    Assignee: Lesco Inc.
    Inventor: Alice P. Hudson
  • Patent number: 5662733
    Abstract: The viscosity and gel strength of organic adhesive coating compositions containing an organic adhesive material, usually asphalt, and clay minerals and cationic surfactants is further enhanced by the addition of small quantities of acidic compounds which have pK.sub.A values less than about 5. The acidic compounds preferably are water soluble and contain phosphorus.
    Type: Grant
    Filed: April 10, 1996
    Date of Patent: September 2, 1997
    Assignee: Surface Chemists of Florida Inc
    Inventors: Alice P. Hudson, James E. Nevin
  • Patent number: 5538531
    Abstract: Controlled release, particulate fertilizer products having a water soluble fertilizer central mass encased in a plurality of water insoluble, abrasion resistant coatings plus unique coating compositions and methods for the production of such products are disclosed. At least one essential inner coating is a urethane reaction product of (1) a polyisocyanate selected from diphenylmethane diisocyanate, toluene diisocyanate, derivatives thereof, polymers thereof and mixtures thereof which contain about 1.5 to 3 isocyannate groups per molecule and between about 10 and 50% NCO, and (2) a polyol having about 2 to 6 hydroxyl moieties and at least one alkyl moiety containing about 10 to 22 carbon atoms, e.g. hydrogenated castor oil. An essential outer coating is formed of an organic wax having a drop melting point of between about 50.degree. and 120.degree. C.
    Type: Grant
    Filed: January 6, 1994
    Date of Patent: July 23, 1996
    Inventors: Alice P. Hudson, Fred E. Woodward, deceased, by Louis Robinson, legal representative
  • Patent number: 5529621
    Abstract: This invention is to surfactant compositions which are organic salts of a polyamine and a carboxylic acid. The polyamine has the structure: ##STR1## wherein R is (i) alkyl or alkenyl containing from about 10 to about 22 carbon atoms or (i) R'--O--CH2CH2CH2-- wherein R' is alkyl containing from about 8 to about 22 carbon atoms;A is a divalent hydrocarbyl group containing about 2 to about 6 carbon atoms;and n is an integer from about 1 to about 3.The carboxylic acid has the structure:R"--COOHwherein R" is alkyl or alkenyl containing about 6 to about 22 carbon atoms.The surfactants may contain polar activators.This invention is also to compositions containing asphalt, a clay mineral, and the above described surfactant.
    Type: Grant
    Filed: June 8, 1995
    Date of Patent: June 25, 1996
    Assignee: Surface Chemists of Florida Inc.
    Inventors: Alice P. Hudson, James E. Nevin
  • Patent number: 5478375
    Abstract: Novel sealants for sulfur coated urea fertilizer are comprised mixtures of fatty esters of polyhydric alcohols and polymers which are soluble therein and contain ester, carboxylate, or hydroxyl functionality; said mixtures are preferably crosslinked with a transesterification catalyst, and optionally contain dicarboxylic or tricarboxylic acids with 9 to 60 carbon atoms, or mixtures thereof.
    Type: Grant
    Filed: October 21, 1994
    Date of Patent: December 26, 1995
    Assignee: Lesco Inc.
    Inventor: Alice P. Hudson
  • Patent number: 5466274
    Abstract: Polymer topcoated sulfur coated fertilizer compositions are provided which exhibit slow release characteristics and are abrasion resistant, free flowing, non-smearing and essentially dustless products.
    Type: Grant
    Filed: April 4, 1994
    Date of Patent: November 14, 1995
    Assignee: OMS Investments, Inc.
    Inventors: Alice P. Hudson, Fred E. Woodward, deceased, by Sam Woodward, executor, Richard J. Timmons, Harvey M. Goertz
  • Patent number: 5423897
    Abstract: Mixtures of 50 to 99 percent hydrocarbon waxes and 1 to 50 percent of hydrocarbon soluble surfactants chosen from the group consisting of (a) primary and secondary alkyl amines in which the alkyl groups contain 16 to 30 carbon atoms, and (b) fatty acid amides of primary alkyl amines and (c) fatty acid esters of alkanols in which the alkyl groups of the acids, amines and alkanols contain 16 to 30 carbon atoms, or mixtures thereof, provide sealant coatings for sulfur coated urea which are superior moisture barriers and are non-blocking and thus do not require the addition of clay or other fine particle materials.
    Type: Grant
    Filed: October 5, 1992
    Date of Patent: June 13, 1995
    Inventors: Alice P. Hudson, Fred E. Woodward
  • Patent number: 5300135
    Abstract: Mixtures of hydrocarbon waxes and hydrocarbon soluble polymers which have oxygen containing polar groups provide an abrasion resistant sealant coating for sulfur coated urea.
    Type: Grant
    Filed: June 9, 1993
    Date of Patent: April 5, 1994
    Assignee: The O. M. Scott & Sons Company
    Inventors: Alice P. Hudson, Fred E. Woodward
  • Patent number: 5008039
    Abstract: A low foaming, rust inhibiting composition is disclosed which contains:A. a rust inhibiting amount of a dicarboxylic acid of the formula: ##STR1## wherein Z is COOH or H, and one of each is present, and x and y are from 3 to 9, with x+y=12;B. a foam inhibiting amount of a triglyceride acid of the formula: ##STR2## wherein x and y are integers from 3 to 9, x and y together equal 12. R.sub.1 and R.sub.2 are saturated/unsaturated hydrocarbon terminals of fatty acids esterified with glycerol; andC. a base sufficient to adjust the pH of the composition of about 6.5 to 10.5.
    Type: Grant
    Filed: June 29, 1990
    Date of Patent: April 16, 1991
    Assignee: Westvaco Corporation
    Inventors: Fred E. Woodward, Alice P. Hudson
  • Patent number: 4956106
    Abstract: A low foaming, rust inhibiting composition is disclosed which contains:A. a rust inhibiting amount of a dicarboxylic acid of the formula: ##STR1## wherein Z is COOH or H, and one of each is present, and x and y are from 3 to 9, with x+y=12;B. a foam inhibiting amount of a triglyceride acid of the formula: ##STR2## wherein x and y are integers from 3 to 9, x and y together equal 12. R.sub.1 and R.sub.2 are saturated/unsaturated hydrocarbon terminals of fatty acids esterified with glycerol; andC. a base sufficient to adjust the pH of the composition to about 6.5 to 10.5.
    Type: Grant
    Filed: March 15, 1988
    Date of Patent: September 11, 1990
    Assignee: Westvaco Corporation
    Inventors: Fred E. Woodward, Alice P. Hudson