PTFE-based polymers
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United States of America Patent
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Aug 24, 2004
Grant Date -
Dec 19, 2002
app pub date -
Mar 15, 2002
filing date -
Mar 20, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Compositions containing core-shell particles having a core polytetrafluoroethylene-based polymers (PTFE) and shell styrene-based polymers (PS), wherein the particles contain an amount by weight of PTFE from 3 to 50%, preferably from 5 to 30% by weight, wherein the core PTFE particles have an average diameter from 5 to 100 nm, preferably from 10 to 70 nm, the core-shell particles having an average diameter from 10 to 170 nm, preferably from 20 to 100 nm.
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