Patents Assigned to ProChroma Technologies
  • Process for dyeing or printing/flame retarding aramids with N-octyl-pyrrolidone swelling agent
    Patent number: 5215545
    Abstract: Poly(m-phenyleneisophthalamide) fabrics are printed and optionally flame retarded in a two-step process in which the dye diffusion promoting agent N-octyl-2-pyrrolidone optionally with a flame retardant is applied following by printing and print fixation.
    Type: Grant
    Filed: March 16, 1992
    Date of Patent: June 1, 1993
    Assignees: Burlington Industries, Inc., ProChroma Technologies, Inc.
    Inventors: Barbara J. Cates, Phillip H. Riggins, David R. Kelly
  • Nomex printing
    Patent number: 4981488
    Abstract: Poly(m-phenyleneisophthalamide) fabrics containing N-cyclohexyl-2-pyrrolidone on them are printed with a print paste. Print pastes containing N-cyclohexyl-2-pyrrolidone are also described.
    Type: Grant
    Filed: August 16, 1989
    Date of Patent: January 1, 1991
    Assignees: Burlington Industries, Inc., ProChroma Technologies
    Inventors: Barbara J. Cates, Phillip H. Riggins, David R. Kelly