Patent Number: 6,251,980

Title: Nanocomposites formed by onium ion-intercalated clay and rigid anhydride-cured epoxy resins

Abstract: 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.

Inventors: Lan; Tie (Lake Zurich, IL), Westphal; Erin K. (Oakwood Hills, IL)

Assignee: AMCOL International Corporation

International Classification: C01B 33/00 (20060101); C01B 33/44 (20060101); C08K 9/00 (20060101); C08K 9/04 (20060101); C09C 3/10 (20060101); C09C 1/40 (20060101); C09C 1/42 (20060101); C08K 003/00 ()

Expiration Date: 06/26/2018