Method of covering a substrate by overidge bonding of a covering material about the edges of the substrate
AssigneesAshland Oil, Inc., Riverside Laboratories, Inc.
InventorsRobert L. Schmidt, Hubert J. Beckman
Life of this patent
Estimating the term…
Abstract
Laminates are prepared from rigid panels or sheets (e.g. gypsum board or plywood) and resin-saturated paper by a unidirectional pressure process which simultaneously bonds the paper to one of the broad flat sides of the panel or sheet and to one or more of the adjacent thin sides of the panel or sheet which intersect the broad side. The resulting laminates are useful in the construction of walls and furniture.
Claims12
Process for preparing a laminate from a rigid sheet and a resin-impregnated covering material wherein the covering material is to be bonded to a broad flat side of said sheet, the improvement which comprises:
- A. applying a preformed strip of heat moldable resin along at least one of the thin sides bordering and adjacent to a broad flat side of a support substrate sheet;
- B. positioning a resin-impregnated covering material over said flat side, said covering material extending beyond said strip of heat moldable resin;
- and
- C. hot pressing said covering material with unidirectional compressive forces against said broad flat surface of said sheet and over said heat moldable resin, thereby simultaneously laminating said at least one of the thin sides and the broad flat surface.
Dependencies are inferred from the claim text.