SHEET WITH MULTIPLE THICKNESS AND METHODS FOR FORMING SAME
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United States of America Patent
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Issued Date -
May 23, 2013
app pub date -
Nov 20, 2012
filing date -
Nov 22, 2011
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A method of forming thermoforming sheets includes providing a molten polymer source. The method further includes providing a first and second roller, the second roller having a first and second section, the first section having a first diameter and the second section having a second diameter. The method further includes feeding molten polymer from the molten polymer source into a nip between the first and second roller. The method further includes forming the thermoforming sheets having a first and second portion, the first portion corresponding to the first and second section of the second roller respectively, the first portion have a first thickness corresponding to the first diameter and the second portion having a second thickness corresponding to the second diameter.
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