Patents Assigned to Swiss Aluminum Ltd. - Research Laboratores
  • Composite panel that is difficult to combust and produces little smoke, and process for manufacturing same
    Patent number: 4751137
    Abstract: Composite panels with plastic core of polyvinylchloride and metal outer layers bonded to the core by means of adhesive layers, including those where flame retardant additives are incorporated in the plastic core, do not exhibit completely satisfactory properties for certain applications, in particular with respect to behavior under fire conditions viz., the creation of smoke. Composite panels having a plastic core of post-chlorinated polyvinylchloride or a mixture of the same with polyvinylchloride avoid these disadvantages.
    Type: Grant
    Filed: January 23, 1987
    Date of Patent: June 14, 1988
    Assignee: Swiss Aluminum Ltd. - Research Laboratores
    Inventors: Paul Halg, Harald Severus