Patents Assigned to Unitex Limited
  • Patent number: 4469733
    Abstract: The invention provides a laminate or sandwich suitable for structural purposes and which comprises a lightweight foam core having bonded on one or both sides a lightweight structural skin. More particularly the structural skin adapted to be bonded to the foam core to form the laminate or sandwich construction comprises a composite of resin and monofilaments. This structural skin is characterized in that these monofilaments are laid to extend along the skin without directional change relative to the extent of the skin. The monofilaments are at least 10 cm in length and are neither crimped nor woven. Within the composite forming the structural skin the ratio of resin to monofilament is ess than 2:1 by weight.
    Type: Grant
    Filed: February 6, 1984
    Date of Patent: September 4, 1984
    Assignee: Unitex Limited
    Inventor: Robert M. Seddon
  • Patent number: 4121008
    Abstract: A foam sandwich construction and a method for generating same. The construction includes a central foam layer which is formed of materials selected so that central layer can be a stress carrying member of the construction.
    Type: Grant
    Filed: October 27, 1976
    Date of Patent: October 17, 1978
    Assignee: Unitex Limited
    Inventor: Robert Maxwell Seddon