Patents by Inventor L. Fernando Del Corral

L. Fernando Del Corral 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).

  • Patent number: 5902820
    Abstract: Microbicidal compositions are described. The compositions contain (a) propiconazole and (b) dodecylamine or a dodecylamine salt. The propiconazole and dodecylamine or dodecylamine salt are present in a synergistically effective amount to control the growth of at least one microorganism. Methods for controlling the growth of microorganisms on various substrates or in aqueous systems are also described. Also described is the industrial application of the microbicidal composition in the leather industry, the lumber industry, the papermaking industry, the textile industry, the agricultural industry, and the coating industry, as well as in aqueous systems.
    Type: Grant
    Filed: March 21, 1997
    Date of Patent: May 11, 1999
    Assignee: Buckman Laboratories International Inc.
    Inventors: Percy A. Jacquess, David Oppong, Sheldon M. Ellis, L. Fernando Del Corral
  • Patent number: 5709880
    Abstract: Tabletized ionene polymers, methods for their preparation and their use in water treatment is described. The tablet contains about 5 to about 60 percent by weight of an ionene polymer, about 40 to about 95 percent by weight of a salt carrier matrix, 0 to about 10 percent by weight of a disintegration rate regulator, and 0 to about 10 percent by weight of an anticaking agent. The tablets may be made by mixing an aqueous solution of an ionene polymer with a carrier matrix to form a moist mass, drying the moist mass to form granules, reducing the granule size to form a powder, and compressing the powder into a tablet. The tablets are useful in a wide variety of water treatment applications. Accordingly, the specification describes a method for controlling the growth of microorganisms in an aqueous system. Using the method, one treats an aqueous system with an ionene polymer in an amount effective to control the growth of at least one microorganism. The ionene polymer is contained in a tablet of the invention.
    Type: Grant
    Filed: July 10, 1995
    Date of Patent: January 20, 1998
    Assignee: Buckman Laboratories International, Inc.
    Inventors: L. Fernando Del Corral, Percy A. Jaquess, Wallace E. Puckett, Russel E. Fues
  • Patent number: 5707534
    Abstract: Tabletized ionene polymers, methods for their preparation and their use in water treatment is described. The tablet contains about 5 to about 60 percent by weight of an ionene polymer, about 40 to about 95 percent by weight of a salt carrier matrix, 0 to about 10 percent by weight of a disintegration rate regulator, and 0 to about 10 percent by weight of an anticaking agent. The tablets may be made by mixing an aqueous solution of an ionene polymer with a carrier matrix to form a moist mass, drying the moist mass to form granules, reducing the granule size to form a powder, and compressing the powder into a tablet. The tablets are useful in a wide variety of water treatment applications. Accordingly, the specification describes a method for controlling the growth of microorganisms in an aqueous system. Using the method, one treats an aqueous system with an ionene polymer in an amount effective to control the growth of at least one microorganism. The ionene polymer is contained in a tablet of the invention.
    Type: Grant
    Filed: July 10, 1995
    Date of Patent: January 13, 1998
    Assignee: Buckman Laboratories International, Inc.
    Inventors: L. Fernando Del Corral, Percy A. Jaquess, Wallace E. Puckett, Russell E. Fues