Stock material or miscellaneous articles – Sheet including cover or casing – Including elements cooperating to form cells
Patent
1992-12-16
1995-01-03
Ryan, Patrick J.
Stock material or miscellaneous articles
Sheet including cover or casing
Including elements cooperating to form cells
359518, 359538, 156276, 156290, 1563084, 428240, 428241, 428261, 428269, 428283, 428284, 428286, 428325, 428327, 428406, 428407, 4284231, 4284242, G02B 5128
Patent
active
053785207
ABSTRACT:
Encapsulated-lens retroreflective sheeting comprising (1) a layer of binder material having a layer of retroreflective elements partially embedded in its top surface; (2) a transparent cover sheet disposed in spaced relation from the layer of retroreflective elements; (3) a network of narrow intersecting bonds comprising binder material embossed from the layer of binder material into contact with the cover sheet so as to adhere the layer of binder material and cover sheet together and form a plurality of cells within which retroreflective elements are hermetically sealed; the embossing of the layer of binder material leaving the bottom surface of the layer of binder material with an embossed configuration; and (4) a support sheet lastingly and directly adhered to said bottom surface of the layer of binder material and embossed with the layer of binder material so as to follow the embossed configuration of said bottom surface.
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Lightle Vera L.
Nagaoka Yoshiyuki
Griswold Gary L.
Kirn Walter N.
Macholl Marie R.
Minnesota Mining and Manufacturing Company
Ryan Patrick J.
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