Plastic laminate

Details Plastic laminate Plastic laminate

1974-12-20

1976-07-13

Drummond, Douglas J.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156289, 428530, B44C 124

Patent

active

039691748

ABSTRACT:
The surface smoothness of decorative laminate pressed without pans is improved by using as a pressure equalizing medium during consolidation of the laminate lay-up under heat and pressure, a thermoplastic resin layer between successive laminate lay-ups which melts or softens and flows at the consolidation temperature, the thermoplastic resin layer being protected on either side by a release medium. The use of the thermoplastic resin layer eliminates the use of the usual highly polished metal caul plates for all but the smoothest laminates and permits the use of press build-ups of many more laminate lay-ups than when using metal caul plates.

REFERENCES:
patent: 2442422 (1948-06-01), Loetscher
patent: 3215579 (1965-11-01), Hagen
patent: 3236714 (1966-02-01), Traut
patent: 3303081 (1967-02-01), Michaelson et al.
patent: 3373068 (1968-03-01), Grosheim et al.
patent: 3698978 (1972-10-01), McQuade
patent: 3723220 (1973-03-01), Scher et al.
patent: 3761338 (1973-09-01), Ungar et al.

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