Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1974-07-30
1976-07-27
Whitby, Edward G.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
40135, 427163, 427199, 427250, 427282, 428406, B44C 100
Patent
active
039716929
ABSTRACT:
Retro-reflective material is made by applying a mono-layer of transparent glass beads to a tacky coating formed on a carrier sheet, coating exposed parts of the beads with a reflective material such as aluminium, and embedding the reflectively coated parts of the beads in an adhesive coating on a backing member. The carrier sheet is then stripped off. The thickness of the adhesive coating on the backing member is less than the typical diameter of the beads, and the thickness of the tacky coating on the carrier sheet is less than that of the adhesive on the backing member. In some cases screens or stencils are interposed between the carrier sheet and the backing member. Products resulting from these processes are described.
REFERENCES:
patent: 2143946 (1939-01-01), Hunter
patent: 2592882 (1952-04-01), Fisher et al.
patent: 3005382 (1961-10-01), Weber
patent: 3036928 (1962-05-01), Poole
patent: 3286604 (1966-11-01), DE Vries
patent: 3405025 (1968-10-01), Goldman
patent: 3708378 (1973-01-01), Tung
patent: 3877786 (1975-04-01), Booras
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