Patents Assigned to Therma-Tru Corporation
  • Patent number: 5932314
    Abstract: Compression molded pigmented door skins fabricated by compression molding a pigmented, curable, unsaturated polyester sheet molding compound containing a co-curable unsaturated monomer, a low profile additive, and a microvoid-reducing thermoplastic polymer, exhibit uniform stainability while maintaining a low linear thermal coefficient of expansion. Such door skins are suitable for preparing wood grain textured exterior insulated doors which exhibit minimal thermal deflection when exposed to interior/exterior temperature differentials, even at eight foot door heights. The doors may be stained without first applying a seal coat.
    Type: Grant
    Filed: September 2, 1997
    Date of Patent: August 3, 1999
    Assignee: Therma-Tru Corporation
    Inventor: Kenneth J. West
  • Patent number: RE36240
    Abstract: A door assembly having a core positioned within a frame. The door assembly further includes a pair of opposed molded skins. There are edge adjacent the skins. The skins a made of a polymer material, a low profile additive and reinforcement fibers. Each of the skins has an exterior surface and an interior surface. The interior surface is adjacent the core. The exterior surface includes a textured pattern consisting of level portions and depressions. The depressions have a range in depth from a 0.025 mm to about 1.0 mm from the level portions. The skins further include undercuts adjacent the depressions. The undercuts have a range in extent of undercutting from about 0.025 mm to about 0.10 mm from the depressions.
    Type: Grant
    Filed: September 8, 1997
    Date of Patent: June 29, 1999
    Assignee: Therma-Tru Corporation
    Inventors: Ronald C. Minke, Kenneth J. West