Tape backing substrate
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United States of America Patent
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Jun 6, 1989
Issued Date -
N/A
app pub date -
Sep 20, 1988
filing date -
Dec 4, 1987
priority date (Note) -
Expired
status (Latency Note)
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Abstract
There is disclosed a cloth-like tape substrate. The substrate is made from an essentially unbonded cellulose web having a breaking length between about 0.71 km and 2.66 km which is saturated with a soft rubber-like polymer, coated with a low stiffness polymer, and then embossed. The unbonded web is formed from at least 25% by weight of pulp having R.sub.10 values greater than 94%. The soft rubber-like polymer has a glass-transition temperature between -50.degree. C. and 0.degree. C. and the low stiffness polymer coating has a tensile modulus less than 1,000 MPa.
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