Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Adhesive outermost layer
Patent
1986-01-31
1988-09-06
Herbert, Thomas J.
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Adhesive outermost layer
428 40, 428352, 525240, 604389, 604390, C09J 702, A61F 1316
Patent
active
047692839
ABSTRACT:
Normally tacky, pressure-sensitive adhesive tapes which are soft, pliable, conformable, and heat sealable are provided. The tapes have a backing of a substantially untensilized, tough, ductile film, the film being a blend of crystalline isotactic polypropylene and a compatible ethylene-based polymer, and a normally tacky, pressure-sensitive adhesive on one side of the film. The films have a longitudinal secant modulus of less than 3700 kg/cm.sup.2, a transverse secant modulus of less than 3700 kg/cm.sup.2, a longitudinal elastic modulus of less than 5200 kg/cm.sup.2, a transverse elastic modulus of less than 5200 kg/cm.sup.2, a longitudinal stiffness of less than 1.7, and a transverse stiffness of less than 3.0.
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Kauss Del A.
Sipinen Alan J.
Herbert Thomas J.
Minnesota Mining and Manufacturing Company
Sell D. M.
Truesdale C.
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