Offset laminated intumescent mounting mat
AssigneeMinnesota Mining and Manufacturing Company
InventorsRoger L. Langer, Alan J. Marlor
Life of this patent
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Abstract
At least two similar sheets of intumescent sheet material one of which is coated with adhesive on one face are adhered with an offset and with liner paper covering the exposed adhesive covered layer of the offset. Dimensions are made so that the laminate can be conformably wrapped around a ceramic monolith, the liner removed and the ends of the two laminate adhered. This provides ease of insertion of ceramic monoliths in coverings and after heating expansion of the intumescent material secures the monolith in the covering.
Claims3
As an article of manufacture an intumescent conforming mounting pad comprised of at least a first ply of intumescent sheet material having one adhesive-coated face and having ends and edges separated by predetermined dimensions and a second ply of intumescent sheet material of substantially the same dimensions as said first ply longitudinally displaced from one end of said first ply by a predetermined amount and adhered to the adhesive-coated face of said first ply leaving a free end of said first ply with exposed adhesive-coated face.
Dependencies are inferred from the claim text.