Composite board structure and a method of and an apparatus for p

Details Composite board structure and a method of and an apparatus for p Composite board structure and a method of and an apparatus for p

1977-07-20

1979-04-17

Lesmes, George F.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including aperture

156210, 296137A, 428137, 428138, 428182, 428186, 428178, 428212, 428332, B32B 328, B32B 310

Patent

active

041501861

ABSTRACT:
A composite board structure comprising a corrugated fiberboard and a facing web which is attached to the outer face of a liner of the corrugated fiberboard by means of a layer of a hot melt adhesive material between the liner and the facing web, the liner being formed with perforations and the layer of the hot melt adhesive material having embossed spot portions respectively filling in the perforations in the liner. Such embossed spot portions are formed by building up a partial vacuum in the open spaces between the layer of the hot melt adhesive material and the corrugated paper medium forming part of the corrugated fiberboard.

REFERENCES:
patent: 206436 (1878-07-01), Greene
patent: 2234517 (1941-03-01), Coffman
patent: 3616010 (1971-10-01), Dunholter et al.
patent: 4093482 (1978-06-01), Ogata et al.

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