Patents by Inventor Mariela Leticia Ponce

Mariela Leticia Ponce 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).

  • Production of a functionalized polytriazole polymer
    Patent number: 8026337
    Abstract: A method for the production of a functionalized polytriazole polymer, particularly a poly(1,2,4-triazole)-polymer, includes the steps of (a) mixing a hydrazine salt, particularly hydrazine sulfate, with at least an aromatic and/or heteroaromatic dicarboxylic acid and/or at least a dicarboxylic acid derivate in polyphosphoric acid and if necessary further components for obtaining a solution; (b) heating the solution in a protective gas atmosphere for obtaining polyhydrazides and adding aromatic and/or heteroaromatic primary amines to the solution; and (c) precipitating a polymer. If necessary, neutralization in a basic solution may be carried out.
    Type: Grant
    Filed: March 11, 2010
    Date of Patent: September 27, 2011
    Assignee: Helmholtz—Zentrum Geesthacht Zentrum für Material-und Küstenforschung GmbH
    Inventors: Mariela Leticia Ponce, Dominique De Figueiredo Gomes, Suzana Nunes, Volker Abetz
  • Production of a functionalized polytriazole polymer
    Patent number: 7989579
    Abstract: A method for the production of a functionalized polytriazole polymer, particularly a poly(1,2,4-triazole)-polymer, includes the steps of (a) mixing a hydrazine salt, particularly hydrazine sulfate, with at least an aromatic and/or heteroaromatic dicarboxylic acid and/or at least a dicarboxylic acid derivate in polyphosphoric acid and if necessary further components for obtaining a solution; (b) heating the solution in a protective gas atmosphere for obtaining polyhydrazides and adding aromatic and/or heteroaromatic primary amines to the solution; and (c) precipitating a polymer. If necessary, neutralization in a basic solution may be carried out.
    Type: Grant
    Filed: January 30, 2008
    Date of Patent: August 2, 2011
    Assignee: GKSS-Forschungszentrum Geesthacht GmbH
    Inventors: Mariela Leticia Ponce, Dominique De Figueiredo Gome, Suzana Nunes, Volker Abetz
  • PRODUCTION OF A FUNCTIONALIZED POLYTRIAZOLE POLYMER
    Publication number: 20100168376
    Abstract: A method for the production of a functionalized polytriazole polymer, particularly a poly(1,2,4-triazole)-polymer, includes the steps of (a) mixing a hydrazine salt, particularly hydrazine sulfate, with at least an aromatic and/or heteroaromatic dicarboxylic acid and/or at least a dicarboxylic acid derivate in polyphosphoric acid and if necessary further components for obtaining a solution; (b) heating the solution in a protective gas atmosphere for obtaining polyhydrazides and adding aromatic and/or heteroaromatic primary amines to the solution; and (c) precipitating a polymer. If necessary, neutralization in a basic solution may be carried out.
    Type: Application
    Filed: March 11, 2010
    Publication date: July 1, 2010
    Applicant: GKSS-FORSCHUNGSZENTRUM GEESTHACHT GMBH
    Inventors: Mariela Leticia Ponce, Dominique De Figueiredo Gomes, Suzana Nunes, Volker Abetz
  • PRODUCTION OF A FUNCTIONALIZED POLYTRIAZOLE POLYMER
    Publication number: 20080182964
    Abstract: A method for the production of a functionalized polytriazole polymer, particularly a poly(1,2,4-triazole)-polymer, includes the steps of (a) mixing a hydrazine salt, particularly hydrazine sulfate, with at least an aromatic and/or heteroaromatic dicarboxylic acid and/or at least a dicarboxylic acid derivate in polyphosphoric acid and if necessary further components for obtaining a solution; (b) heating the solution in a protective gas atmosphere for obtaining polyhydrazides and adding aromatic and/or heteroaromatic primary amines to the solution; and (c) precipitating a polymer. If necessary, neutralization in a basic solution may be carried out.
    Type: Application
    Filed: January 30, 2008
    Publication date: July 31, 2008
    Applicant: GKSS-FORSCHUNGSZENTRUM GEESTHACHT GMBH
    Inventors: Mariela Leticia Ponce, Dominique De Figueiredo Gome, Suzana Nunes, Volker Abetz