Patents by Inventor M. Antonieta Macip-Boulis

M. Antonieta Macip-Boulis 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).

  • Thermally insulative, microporous xerogels and aerogels
    Patent number: 5525643
    Abstract: Microporous aerogel and xerogel compositions are prepared by a random polymerization reaction of a silanol-terminated polydimethylsiloxane (PDMS) and tetraethoxysilane (TEOS) and/or methyltriethoxysilane (MTEOS) at a molar ratio of at least about 0.012 of the PDMS to TEOS and/or MTEOS to form a gel. The reaction is in the presence of an acid catalyst at a molar ratio of at least about 0.5 acid to TEOS and/or MTEOS, water at a molar ratio in the range of from about 6 to about 15 of the water to TEOS and/or MTEOS and a solvent at a minimum molar ratio of about 4 of the solvent to TEOS and/or MTEOS. In the preparation process, the gel is aged. When elevated temperatures of at least about 40.degree. C. up to the boiling point of the solvent are used in aging, the gel can be aged for a period of at least about 24 hours. At temperatures from ambient up to about 40.degree. C., the gel is aged for a minimum of about 48 hours.
    Type: Grant
    Filed: July 28, 1995
    Date of Patent: June 11, 1996
    Assignee: Armstrong World Industries, Inc.
    Inventors: M. Antonieta Macip-Boulis, Aheed G. Boulis