Stock material or miscellaneous articles – Structurally defined web or sheet – Including variation in thickness
Patent
1980-03-05
1981-09-29
Bell, James J.
Stock material or miscellaneous articles
Structurally defined web or sheet
Including variation in thickness
156628, 156278, 156296, 428220, 428280, 428282, 428284, 428290, 428297, 428298, 428299, 428302, 428303, 428343, 428354, B32B 704, B32B 522, B32B 3108
Patent
active
042923603
ABSTRACT:
A multi-ply non-woven sheet material and pressure-sensitive adhesive tape made therefrom are disclosed. The sheet material comprises a first layer of randomly interlaced fibers bonded to each other by a rewettable binder and at least one additional layer of randomly interlaced fibers bonded to each other and to the first layer by a rewettable binder. The fibers of the additional layer are laid directly on the first layer prior to application of the binder to the additional layer whereby the binder bonds the fibers of the additional layer to each other and to the first layer.
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Cheney Paul G.
Riedel John E.
Alexander Cruzan
Bates Carolyn A.
Bell James J.
Minnesota Mining and Manufacturing Company
Sell Donald M.
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