Patents Assigned to AlliedSignal Inc. /DSM N.V.
  • Process for separation and recovery of waste carpet components
    Patent number: 5722603
    Abstract: A process for separating and recovering waste carpet material components, especially face fiber material, includes removing adhesive material from the waste carpet material feedstock to obtain a mixture containing face fiber material which is passed with a liquid medium to a hydrocyclone, where the solids in the mixture are separated on the basis of specific gravity, and recovered. The recovered components can then be processed into desired products.
    Type: Grant
    Filed: November 28, 1995
    Date of Patent: March 3, 1998
    Assignee: AlliedSignal Inc. /DSM N.V.
    Inventors: Michael Robert Costello, Bernd Roman Keller