Patents by Inventor Areal Guerra Rogelio

Areal Guerra Rogelio 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).

  • Method for the de-acidification of celluso material
    Publication number: 20040194902
    Abstract: A method for obtaining a chemical composition for de-acidification of cellulose-type material comprises preparing a solution of 30 to 70% carbonated magnesium di-n-propylate in n-propanol and diluting the solution by addition of a hydrofluorocarbon diluent selected from the group consisting of 1,1,1,2-tetrafluoroethane and 1,1,1,2,3,3,3-heptafluoropropane.
    Type: Application
    Filed: April 15, 2004
    Publication date: October 7, 2004
    Applicant: Universitat Politecnica De Catalunya
    Inventor: Areal Guerra Rogelio
  • Composition for de-acidification of cellulose material
    Patent number: 6743336
    Abstract: The product is presented in the form of a solution and is composed of carbonated magnesium di-n-propylate, n-propanol, and a hydrofluorocarbon (HFC) diluent selected from 1,1,1,2-tetrafluoroethane (HFC 134a) and 1,1,1,2,3,3,3-heptafluoropropane (HFC 227). The product may be obtained by a procedure which comprises preparing a solution of carbonated magnesium di-n-propylate in n-propanol and diluting said solution by addition of the HFC diluent. The product is suitable for de-acidifying cellulose-type material and preserving objects based on cellulose-type material.
    Type: Grant
    Filed: March 16, 2001
    Date of Patent: June 1, 2004
    Assignee: Universitat Politecnica de Catalunya
    Inventor: Areal Guerra Rogelio