Patents Assigned to Teiyo Limited
  • Heat-shrinkable tubing, process for production thereof, and use thereof
    Patent number: 5718953
    Abstract: A heat-shrinkable tubing formed substantially from a polyphenylene sulfide, which can be produced by stretching an unstretched tubing formed substantially from a polyphenylene sulfide 1.05 to 4.5 times in the longitudinal direction and 1.3 to 4.5 times in the direction perpendicular to the longitudinal direction at 85.degree. to 105.degree. C.; and a surface-covered inorganic material product which is obtained by covering an inorganic material product with the above tubing and then subjecting the tubing to heat shrinkage.
    Type: Grant
    Filed: October 4, 1996
    Date of Patent: February 17, 1998
    Assignee: Teiyo Limited
    Inventors: Kozo Shikama, Seiki Mukai