In-line silicone coated polyester film and a process for coating the film
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United States of America Patent
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Mar 17, 1998
Issued Date -
N/A
app pub date -
Feb 14, 1996
filing date -
Oct 11, 1991
priority date (Note) -
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Abstract
A silicone release film including an oriented polyester film having a coating thereon in an amount sufficient to act as a silicone release film. The aqueous coating comprises glycidoxy silane and an aqueous based thermosetting silicone release composition. The minimum amount of glycidoxy silane present in the coating is at least 1.0% by weight of the silicone solids. Typical glycidoxy silanes are glycidoxypropyltrimethoxysilane or glycidoxypropyltriethoxysilane. A process for coating a polyester film with a silicone coating is also disclosed, where the coating occurs in-line, during the manufacturing process for the film before it is heat-set.
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