06251980 is referenced by 52 patents and cites 103 patents.

Intercalates formed by contacting a layered material, e.g., a phyllosilicate, with an intercalant onium ion spacing agent and an anhydride-curable epoxy resin. The intercalant onium ion spacing agent converts the interlayer region of the layered materials from hydrophilic to hydrophobic, therefore, the anhydride-curable epoxy resin can be easily intercalated into the interlayer spacing. The co-presence of the co-intercalant anhydride-curable epoxy resin in the interlayer space provides surprising increase in glass transition temperature for anhydride-curable epoxy resin matrix polymer/co-intercalant compounded nanocomposites. The nanocomposites (e.g., epoxy-clay) prepared from the intercalants demonstrate enhanced mechanical, thermal and chemical resistance compared with pristine polymer matrices.

Title
Nanocomposites formed by onium ion-intercalated clay and rigid anhydride-cured epoxy resins
Application Number
9/272277
Publication Number
6251980 (B1)
Application Date
March 19, 1999
Publication Date
June 26, 2001
Inventor
Erin K Westphal
Oakwood Hills
IL, US
Tie Lan
Lake Zurich
IL, US
Agent
Marshall O&apos Toole Gerstein Murray & Borun
US
Assignee
AMCOL International Corporation
IL, US
IPC
C08K 3/00
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