Patents Assigned to VOBECK MATERIALS CORP.
  • Articles having a compositional gradient and methods for their manufacture
    Patent number: 9447251
    Abstract: Articles comprising a composition comprising a polymeric binder and at least one carbonaceous filler, wherein the article has a compositional gradient such that the concentration of the filler is increased or decreased in at least one direction in the article. Methods for their preparation and structures comprising the articles are also described.
    Type: Grant
    Filed: June 30, 2009
    Date of Patent: September 20, 2016
    Assignee: VOBECK MATERIALS CORP.
    Inventor: John S. Lettow