Patents Examined by Bibhu Mohonty
  • Production of hybrid yarn
    Patent number: 5177840
    Abstract: Hybrid yarn is produced from thermoplastic and reinforcing fibers by spreading the fibers separately to form a band and combining and homogeneously intermixing the two bands on rolls or rods. The spreading is carried out in such a way that the reinforcing fiber band will be from 20 to 100% wider than the thermoplastic fiber band. The hybrid yarn can be sized and processed into fabrics which can be molded to produce fiber composites.
    Type: Grant
    Filed: October 11, 1991
    Date of Patent: January 12, 1993
    Assignee: BASF Aktiengesellschaft
    Inventor: Regina Laws