Apparatus for bonding sheet material

Details Apparatus for bonding sheet material Apparatus for bonding sheet material

1982-09-24

1985-10-15

Dawson, Robert A.

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

With work feeding or handling means

100153, 100154, 118225, 156324, B32B 3112

Patent

active

045472548

ABSTRACT:
Three paperboard webs are glued to one another with as little expenditure of energy as possible. After leaving the gluing apparatus, the finished sheets cut to size are ready for shipment. The middle paperboard web is passed through between two steel rolls which apply glue homogeneously to both sides of the web. High linear pressure is produced in the region of the generatrices of the steel rolls respectively touching the web. Such pressure is necessary in order that a highly viscous polymeric synthetic or natural adhesive, preferably with a solids content of more than 50%, can be used. No special drying facilities are needed, and the water-soluble glue allows recycling without problems.

REFERENCES:
patent: 1504218 (1924-08-01), Crowell
patent: 2554988 (1951-05-01), Hollis
patent: 2566249 (1951-08-01), Rainey et al.
patent: 3690981 (1972-09-01), DiFrank et al.
patent: 4198446 (1980-04-01), Goetz
patent: 4290837 (1981-09-01), Bova

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