Patents by Inventor Luiz Antonio M. da SILVA

Luiz Antonio M. da SILVA 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).

  • Stable polyacrylic acids, their manufacture and their use
    Patent number: 10889661
    Abstract: A polymer and methods of producing the polymer for use, for instance, in mineral processing, including kaolin and calcium carbonate beneficiation are discussed. The method of producing the polymer can include polymerizing at least one monomer in the presence of a polymerization initiator, a chain transfer agent, and a polymerization stabilizer to produce a polymer containing at least one carboxylic acid, wherein the at least one monomer includes an unsaturated carboxylic acid monomer, and wherein the polymer containing at least one carboxylic acid is stable and has a molecular weight of about 1000 g/mol to about 10,000 g/mol.
    Type: Grant
    Filed: December 16, 2011
    Date of Patent: January 12, 2021
    Assignee: BASF SE
    Inventors: Luiz Antonio M. da Silva, Juraci Marques da Silva, Adilson Ignacio da Silva, Antonio Severo Porto Junior
  • Stable Polyacrylic Acids, Their Manufacture and Their Use
    Publication number: 20120157596
    Abstract: A polymer and methods of producing the polymer for use, for instance, in mineral processing, including kaolin and calcium carbonate beneficiation are discussed. The method of producing the polymer can include polymerizing at least one monomer in the presence of a polymerization initiator, a chain transfer agent, and a polymerization stabilizer to produce a polymer containing at least one carboxylic acid, wherein the at least one monomer includes an unsaturated carboxylic acid monomer, and wherein the polymer containing at least one carboxylic acid is stable and has a molecular weight of about 1000 g/mol to about 10,000 g/mol.
    Type: Application
    Filed: December 16, 2011
    Publication date: June 21, 2012
    Applicant: BASF Corporation
    Inventors: Luiz Antonio M. da SILVA, Juraci Marques da SILVA, Adilson Ignacio da SILVA, Antonio Severo Porto Junior