Patents by Inventor María Dolores Baeza Alvarado

María Dolores Baeza Alvarado 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).

  • Reactive block copolymers for the preparation of inorganic tubule-polymer composites
    Patent number: 8557907
    Abstract: A method for modifying an inorganic tubule, such as halloysite, cylindrite, boulangerite, or imogolite, with a functionalized block copolymer for improving compatibility with a thermoplastic or thermoset polymer matrix and a composition for the modified inorganic tubule and for the modified inorganic tubule-polymer matrix are provided. In one embodiment, the block copolymer can be added to a slurry of the inorganic tubules. The pH of the slurry can be manipulated to promote ionic bonding between the inorganic tubules and one block of the block copolymer. The other block of the block copolymer is selected for compatibility with the polymer matrix for a particular application.
    Type: Grant
    Filed: February 25, 2008
    Date of Patent: October 15, 2013
    Assignee: Macro-M S.A. de C.V.
    Inventors: Leticia Flores Santos, Alfonso González Montiel, María Dolores Baeza Alvarado, Edgar Espinoza Rodríguez
  • Reactive block copolymers as additives for the preparation of silicate-polymer composites
    Patent number: 8344058
    Abstract: A process for making a block copolymer compatibilizer comprises reacting an acrylic and/or vinyl monomer that has functional groups with one or more vinyl monomers in the presence of a free radical initiator and a stable free radical to form a reaction product that includes residual unreacted acrylic and/or vinyl monomer, and reacting one or more vinyl monomers with the reaction product to form a second block that incorporates the residual unreacted acrylic monomer. The block copolymer is used to compatibilize a clay nanocomposite material with a thermoplastic or thermoset resin. The block copolymer can be used with existing, commercially-available clays, or the block copolymer can be formed with a polar block that is miscible in a polar dispersion medium for use as a intercalate in producing a clay nanocomposite material.
    Type: Grant
    Filed: February 26, 2007
    Date of Patent: January 1, 2013
    Assignee: CID Centro de Investigación y Desarrollo Technológico S.A. de C.V.
    Inventors: Leticia Flores Santos, Alfonso González Montiel, Maria Dolores Baeza Alvarado
  • Reactive Block Copolymers as Additives for the Preparation of Silicate-Polymer Composites
    Publication number: 20120329911
    Abstract: A process for making a block copolymer compatibilizer comprises reacting an acrylic and/or vinyl monomer that has functional groups with one or more vinyl monomers in the presence of a free radical initiator and a stable free radical to form a reaction product that includes residual unreacted acrylic and/or vinyl monomer, and reacting one or more vinyl monomers with the reaction product to form a second block that incorporates the residual unreacted acrylic monomer. The block copolymer is used to compatibilize a clay nanocomposite material with a thermoplastic or thermoset resin. The block copolymer can be used with existing, commercially-available clays, or the block copolymer can be formed with a polar block that is miscible in a polar dispersion medium for use as a intercalate in producing a clay nanocomposite material.
    Type: Application
    Filed: September 6, 2012
    Publication date: December 27, 2012
    Inventors: Leticia Flores Santos, Alfonso Gonzálex Montiel, María Dolores Baeza Alvarado
  • Reactive block copolymers for the preparation of inorganic tubule-polymer composites
    Publication number: 20080200601
    Abstract: A method for modifying an inorganic tubule, such as halloysite, cylindrite, boulangerite, or imogolite, with a functionalized block copolymer for improving compatibility with a thermoplastic or thermoset polymer matrix and a composition for the modified inorganic tubule and for the modified inorganic tubule-polymer matrix are provided. In one embodiment, the block copolymer can be added to a slurry of the inorganic tubules. The pH of the slurry can be manipulated to promote ionic bonding between the inorganic tubules and one block of the block copolymer. The other block of the block copolymer is selected for compatibility with the polymer matrix for a particular application.
    Type: Application
    Filed: February 25, 2008
    Publication date: August 21, 2008
    Applicant: CID Centro de Investigacion y Desarrollo Tecnologico SA de CV
    Inventors: Leticia Flores Santos, Alfonso Gonzalez Montiel, Maria Dolores Baeza Alvarado, Edgar Espinoza Rodriguez