Patent ID: 6103341
Filing Date: 2000-08-15
Classification: B29C,B32B,B60R,B62D,Y10T

Abstract:
A self-sealing partition for creating a barrier in a passage, said partition comprising:a rigid body formed of a resin-based material and having a principal surface, said principal surface having an outer perimeter; anda plurality of thermally expandable resin-based beads attached to said principal surface of said rigid body, said thermally expandable resin-based beads being positioned on said principal surface of said rigid body such that when said thermally expandable resin-based beads are thermally expanded they form a foamed mass which extends at least to said outer perimeter of said principal surface, said plurality of beads consisting of only a single layer of beads wherein each bead of said single layer is directly attached to said surface.