Patents by Inventor Sergio A. Loynaz

Sergio A. Loynaz 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).

  • Non-abrasive bauxite-based fire retardant
    Patent number: 4292188
    Abstract: Fire retardant properties are provided for cellulose insulation materials by the addition of a fire retardant composition comprising from 60 to 85% of bauxite, from 5 to 30% dolomite, and from 5 to 30% boric acid. Loading factors of from about 20 to about 35% fire retardant are effective to meet applicable federal specifications for flame spread and smoldering.
    Type: Grant
    Filed: June 1, 1979
    Date of Patent: September 29, 1981
    Assignee: Martin Marietta Corporation
    Inventors: Joseph P. Barone, Sergio A. Loynaz, Frederick W. Bauer
  • Method for removing ferrous iron from alkali metal aluminate liquor
    Patent number: 4083925
    Abstract: Sufficient anionic polyacrylamide having molecular weight of at least 2,800,000 is contacted with alkali metal aluminate liquor containing ferrous iron until a substantial proportion of the ferrous iron is precipitated, and said precipitate and liquor are separated. The process is particularly useful as an improvement in the Bayer process for preparing alumina from bauxite.
    Type: Grant
    Filed: March 22, 1976
    Date of Patent: April 11, 1978
    Assignee: Martin Marietta Aluminum, Inc.
    Inventors: John A. S. Green, Sergio A. Loynaz