Stress and/or temperature-indicating composition for roll covers
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United States of America Patent
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Aug 28, 2007
Grant Date -
Dec 4, 2003
app pub date -
Apr 17, 2003
filing date -
Apr 18, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An industrial roll includes: a substantially cylindrical core and a cover overlying the adhesive layer. The cover typically comprises a polymeric top stock layer which comprises a mixture of a polymeric material and at least one of a piezochromic material and a thermochromic material. In this configuration, the pressure and/or temperature experienced by the roll cover at any location thereon can be determined visually, without the need for external equipment.
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