Patents by Inventor Christopher S. Velazquez

Christopher S. Velazquez 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).

  • Chemical modification of solid, fully crystalline polydiacetylenes
    Patent number: 4699954
    Abstract: Chemical modification of crystalline poly-1,6-di-(N-carbazolyl)-2,4-hexadiyne is disclosed. There is provided a chlorinated poly-1,6-di-(N-carbazolyl)-2,4-hexadiyne having at least 12 chlorine atoms per repeat unit. The chlorinated poly-1,6-di-(N-carbazolyl)-2,4-hexadiyne of the invention is characterized by a Fourier transform infrared (FTIR) spectrum including peaks at about 745.+-.5, 798.+-.5, and 851.+-.5 cm.sup.-1. There is also provided a nitrated poly-1,6-di-(N-carbazolyl)-2,4-hexadiyne having at least 2 nitro groups per repeat unit. The nitrated poly-1,6-di-(N-carbazolyl)-2,4-hexadiyne of the invention is characterized by an FTIR spectrum including absorption at about 1511.+-.5, 1342.+-.5, 794.+-.5, 751.+-.5, and 718.+-.5 cm.sup.-1.
    Type: Grant
    Filed: January 12, 1987
    Date of Patent: October 13, 1987
    Assignee: GTE Laboratories Incorporated
    Inventors: Daniel J. Sandman, Boris S. Elman, Christopher S. Velazquez
  • Chemical modification of solid, fully crystalline polydiacetylenes
    Patent number: 4699952
    Abstract: Chemical modification of crystalline poly-1,6-di-(N-carbazolyl)-2,4-hexadiyne is disclosed. There is provided a chlorinated poly-1,6-di-(N-carbazolyl)-2,4-hexadiyne having at least 12 chlorine atoms per repeat unit. The chlorinated poly-1,6-di-(N-carbazolyl)-2,4-hexadiyne of the invention is characterized by a Fourier transform infrared (FTIR) spectrum including peaks at about 745.+-.5, 798.+-.5, and 851.+-.5 cm.sup.-1. There is also provided a nitrated poly-1,6-di-(N-carbazolyl)-2,4-hexadiyne having at least 2 nitro groups per repeat unit. The nitrated poly-1,6-di-(N-carbazolyl)-2,4-hexadiyne of the invention is characterized by an FTIR spectrum including absorption at about 1511.+-.5, 1342.+-.5, 794.+-.5, 751.+-.5, and 718.+-.5 cm.sup.-1.
    Type: Grant
    Filed: January 12, 1987
    Date of Patent: October 13, 1987
    Assignee: GTE Laboratories Incorporated
    Inventors: Daniel J. Sandman, Boris S. Elman, Christopher S. Velazquez
  • Chemical modification of solid, fully crystalline polydiacetylenes
    Patent number: 4699953
    Abstract: Chemical modification of crystalline poly-1,6-di-(N-carbazolyl)-2,4-hexadiyne is disclosed. There is provided a chlorinated poly-1,6-di-(N-carbazolyl)-2,4-hexadiyne having at least 12 chlorine atoms per repeat unit. The chlorinated poly-1,6-di(N-carbazolyl)-2,4-hexadiyne of the invention is characterized by a Fourier transform infrared (FTIR) spectrum including peaks at about 745.+-.5, 798.+-.5, and 851.+-.5 cm.sup.-1. There is also provided a nitrated poly-1,6-di-(N-carbazolyl)-2,4-hexadiyne having at least 2 nitro groups per repeat unit. The nitrated poly-1,6-di-(N-carbazolyl)-2,4-hexadiyne of the invention is characterized by an FTIR spectrum including absorption at about 1511.+-.5, 1342.+-.5, 794.+-.5, 751.+-.5, and 718.+-.5 cm.sup.-1.
    Type: Grant
    Filed: December 22, 1986
    Date of Patent: October 13, 1987
    Assignee: GTE Laboratories Incorporated
    Inventors: Daniel J. Sandman, Boris S. Elman, Christopher S. Velazquez
  • Chemical modification of solid, fully crystalline polydiacetylenes
    Patent number: 4665133
    Abstract: Chemical modification of crystalline poly-1,6-di-(N-carbazolyl)-2,4-hexadiyne is disclosed. There is provided a chlorinated poly-1,6-di-(N-carbazolyl)-2,4-hexadiyne having at least 12 chlorine atoms per repeat unit. The chlorinated poly-1,6-di-(N-carbazolyl)-2,4-hexadiyne of the invention is characterized by a Fourier transform infrared (FTIR) spectrum including peaks at about 745.+-.5, 798.+-.5, and 851.+-.5 cm.sup.-1. There is also provided a nitrated poly-1,6-di-(N-carbazolyl)-2,4-hexadiyne having at least 2 nitro groups per repeat unit. The nitrated poly-1,6-di-(N-carbazolyl)-2,4-hexadiyne of the invention is characterized by an FTIR spectrum including absorption at about 1511.+-.5, 1342.+-.5, 794.+-.5, 751.+-.5, and 718.+-.5 cm.sup.-1.
    Type: Grant
    Filed: July 3, 1985
    Date of Patent: May 12, 1987
    Assignee: GTE Laboratories Incorporated
    Inventors: Daniel J. Sandman, Boris S. Elman, Christopher S. Velazquez