Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1982-05-17
1985-02-12
Dawson, Robert A.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
156206, 156210, 156324, 156462, 156499, 156578, 428182, 428186, B32B 3108
Patent
active
044989431
ABSTRACT:
The present invention relates to a method and apparatus for laminating two webs of corrugating medium to produce a composite corrugating medium for the manufacture of corrugated fiberboard. The method essentially consists of the steps of (a) applying a coat of a water-soluble adhesive onto one side of at least one web of a first and second corrugating medium; (b) conveying the first and second corrugating medium over the surface of a first heating cylinder such that the water-soluble adhesive is between the first and second corrugating medium to join them together into a loosely bound composite corrugating medium, wherein heat is applied to one surface of said composite corrugating medium through the first heating cylinder; and (c) passing the opposite surface of the composite corrugating medium to a second heating cylinder to subject the composite to a second heating step. The present invention contemplates an apparatus for carrying out this invention.
REFERENCES:
patent: 1410879 (1922-03-01), Bither
patent: 4078958 (1978-03-01), Patin
Hayashi Koichi
Itoh Shuji
Dawson Robert A.
Kyokuto Fatty-Acid Corporation
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