Method for clay exfoliation, compositions therefore, and modified rubber containing same
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United States of America Patent
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Aug 18, 2009
Grant Date -
Oct 19, 2006
app pub date -
Dec 18, 2003
filing date -
Dec 18, 2002
priority date (Note) -
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Abstract
A polymer composition of low gas permeability. The composition includes an exfoliated organically-modified clay, butyl rubber, and a polymeric exfoliant. A method for producing the butyl composition by dry mixing the butyl rubber with the exfoliated clay is also provided.
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