Method of preparing a multilayered belt
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United States of America Patent
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-
Jun 4, 1991
Grant Date -
N/A
app pub date -
Dec 29, 1989
filing date -
Dec 29, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A process for preparing a multilayered belt comprises heating a substrate formed of a polymeric material, the substrate having a predetermined inner circumference, to at least about the glass transition temperature of the polymeric material and then placing the sleeve on a cylindrical mandrel. The mandrel has an outer circumference slightly greater than the predetermined inner circumference of the seamless tube. The substrate on the mandrel is subsequently coated to form a multilayered composite belt. The composite belt is then heated to a temperature of at least about the glass transition temperature of the substrate and the composite structure is removed from one end of the mandrel. Removal of the composite belt from the mandrel may be facilitated by any suitable means such as small driven elastomeric rollers, vacuum cups, gravity with vacuum assist and the like. Upon cooling, the composite structure has the predetermined inner circumference.
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