Stock material or miscellaneous articles – Structurally defined web or sheet – Including variation in thickness
Patent
1991-01-24
1993-07-13
Loney, Donald J.
Stock material or miscellaneous articles
Structurally defined web or sheet
Including variation in thickness
428156, 428167, 428143, 428323, 428402, 427137, 404 12, 404 14, 404 94, B32B 1800, E01F 900
Patent
active
052272214
ABSTRACT:
A polymeric base sheet has a plurality of protuberances and valleys located on a first side of the base sheet. A layer of bonding material is located on a top surface of the protuberances and is substantially absent from the valleys located between the protuberances. A plurality of skid-preventative particles are secured to the layer of bonding material so as to be substantially absent from the valleys. A sheet of this construction allows the skid-preventative particles to be used in a more efficient manner than heretofore known. By placing the skid-preventative particles exclusively on the protuberances of the base sheet, less particles need to be employed to obtain the skid-preventative surface.
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Griswold Gary L.
Hanson Karl G.
Kirn Walter N.
Loney Donald J.
Minnesota Mining and Manufacturing Company
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