High temperature paper
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United States of America Patent
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Mar 25, 2003
Grant Date -
N/A
app pub date -
Apr 10, 2002
filing date -
Apr 10, 2002
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Provided is a paper structure comprised of two outside layers and at least one inside layer. The two outside layers are comprised of substantially cellulosic pulp fiber, and the inside layer is comprised of a high temperature fiber and a polymeric binder, and preferably cellulosic pulp fiber. In a preferred embodiment, the structure comprises at least three inside layers, all comprised of cellulosic pulp fiber, high temperature fiber and a polymeric binder. The resulting paper structure finds particular use as a high temperature transformer paper in the manufacture of transformers.
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