Method of making overlaid plywood

Details Method of making overlaid plywood Method of making overlaid plywood

1984-02-27

1985-09-17

Dawson, Robert A.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

144332, 156330, 264 36, 427140, 428 63, B32B 3500

Patent

active

045418802

ABSTRACT:
Overlaid plywood is made by filling surface defects on a plywood panel with a thermosetting resin; overlaying the filled surface(s) with sheet(s) of overlay paper and then compressing the panel, while heating the panel. Gluelines in the plywood veneer and in the overlay paper(s) are cured during the hot pressing operation, which also flattens and hardens the resin-filled defects to form a smooth-surfaced overlaid plywood panel.

REFERENCES:
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patent: 2419614 (1947-04-01), Welch
patent: 2656296 (1953-10-01), Grangaard
patent: 3011903 (1969-12-01), Clock et al.
patent: 3155558 (1964-11-01), Clapp
patent: 3380213 (1968-04-01), Hartman et al.
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patent: 3547170 (1970-12-01), Maxey
patent: 3690979 (1972-09-01), Jarvi
patent: 3741853 (1973-06-01), Forsythe et al.
patent: 3844863 (1974-10-01), Forsythe et al.
Kreibich, "A New Filler is Developed for Plywood Patching", Plywood Magazine, Nov.-Dec., 1964.
Hy-Fil.RTM. Technical Data Sheets A-800, A-801A, A-802; Hysol Corp., Olean, New York.
McCann, "Chemical Repairs in Plywood Panels", Southern Lumberman, vol. 229, No. 2848, 1974, pp. 126-130.

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