Patents by Inventor Massimo Sparpaglione

Massimo Sparpaglione 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).

  • Sol-gel process for the production of high dimensions dry gels and derived glasses
    Patent number: 7216509
    Abstract: It is described a sol-gel process that allows to obtain dry gels, and possibly the corresponding dense glassy bodies, having higher dimensions compared to similar known processes.
    Type: Grant
    Filed: June 21, 2001
    Date of Patent: May 15, 2007
    Assignee: Degussa Novara Technology S.p.A.
    Inventors: Lorenzo Costa, Massimo Sparpaglione
  • Sol-gel process for the production of glassy articles
    Patent number: 7181862
    Abstract: Glassy articles are prepared by subjecting to hydrolysis and policondensation a solution or suspension of a suitable precursor, mainly comprising a silicon alkoxide, and by drying the obtained gel in a pressure chamber, the gel solvent having been substituted by a non-protic solvent, mainly acetone, under nitrogen flowing, at temperature and pressure conditions lower than the gel solvent critical values. The dried gel is then densified by a thermal treatment.
    Type: Grant
    Filed: December 23, 2003
    Date of Patent: February 27, 2007
    Assignee: Degussa Novara Technology, S.p.A.
    Inventors: Giulio Boara, Massimo Sparpaglione, Lorenzo Costa
  • Silicon oxide based articles
    Publication number: 20060218970
    Abstract: Particularly shaped articles constituted by silicon oxide, as such or with suitable additives, prepared by room temperature molding according to a process comprising: preparation of a sol starting from a silicon alcoxide, or from a silicon alcoxide and at least a precursor of at least one of the additional elements; hydrolysis of the sol obtained thereby; addition of colloidal silica; pouring the resulting mixture into the desired mould; sol gelling and fast removal of the solid product; gel drying; gel densification by means of a thermal treatment at temperature ranging from 900 ° C to 1500 ° C. The articles can be used as preforms for the optic fiber spinning.
    Type: Application
    Filed: March 12, 2004
    Publication date: October 5, 2006
    Applicant: Degussa Novara Technology S.p.A
    Inventors: Giulio Boara, Simone Pedretti, Andreas Rückemann, Massimo Sparpaglione
  • High homogeneity silica glass prepared through a sol-gel procedure
    Publication number: 20060079387
    Abstract: The present invention relates to a Si2O glass characterized by a high homogeneity, prepared through a sol-gel procedure.
    Type: Application
    Filed: March 12, 2004
    Publication date: April 13, 2006
    Inventors: Fulvio Costa, Lorenzo Costa, Massimo Sparpaglione
  • Sol-gel process for the production of glassy articles
    Publication number: 20060059709
    Abstract: Glassy articles are prepared by subjecting to hydrolysis and policondensation a solution or suspension of a suitable precursor, mainly comprising a silicon alkoxide, and by drying the obtained gel in a pressure chamber, the gel solvent having been substituted by a non-protic solvent, mainly acetone, under nitrogen flowing, at temperature and pressure conditions lower than the gel solvent critical values. The dried gel is then densified by a thermal treatment.
    Type: Application
    Filed: December 23, 2003
    Publication date: March 23, 2006
    Applicant: NOVARA TECHNOLOGY S.R.L.
    Inventors: Giulio Boara, Massimo Sparpaglione, Lorenzo Costa
  • Sol-gel process for the production of high dimensions dry gels and derived glasses
    Publication number: 20040025537
    Abstract: It is described a sol-gel process that allows to obtain dry gels, and possibly the corresponding dense glassy bodies, having higher dimensions compared to similar known processes.
    Type: Application
    Filed: July 31, 2003
    Publication date: February 12, 2004
    Inventors: Lorenzo Costa, Massimo Sparpaglione