Patents by Inventor Pilar Erra Serrabasa

Pilar Erra Serrabasa 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).

  • Process for the synthesis of cationic surfactants comprising esterification with basic character amino acids
    Patent number: 5780658
    Abstract: The process of the invention is directed to the synthesis of cationic type surfactant compounds consisting of natural basic-character amino acids, and any of their homologs, suitably modified for the purpose of obtaining products having specific applications as antimicrobial (biocidal) agents. The process comprises a first step of esterification of an amino acid, and a second step of the condensation of a fatty acid chloride with an esterified amino acid derivative. Nontoxic reaction media and catalysts are used, and a final product free from impurities is obtained. The cost of the process of the invention is reduced from prior art processes due to the use of cheaper starting materials and simpler equipment.
    Type: Grant
    Filed: September 10, 1996
    Date of Patent: July 14, 1998
    Assignee: Laboratorios Miret, S.A.
    Inventors: Marta Rosa Infante Martinez-Pardo, Augustin Contijoch Mestres, Pilar Erra Serrabasa