Intercalates; exfoliates; process for manufacturing...

Details Intercalates; exfoliates; process for manufacturing... Intercalates; exfoliates; process for manufacturing...

C - Chemistry, Metallurgy

01

B

C01B 33/44 (2006.01) C08K 9/04 (2006.01) C08K 9/12 (2006.01) C09C 3/10 (2006.01) C11C 5/00 (2006.01)

Patent

CA 2178398

Intercalates formed by mixing the phyllosilicate with a polymer and a liquid carrier, and extruding the mixture through a die-opening to adsorb or intercalate the polymer between adjacent phyllosilicate platelets. Sufficient polymer is adsorbed between adjacent phyllosilicate platelets to expand the adjacent platelets to a spacing of at least about 10 .ANG. (as measured after water removal), up to about 55 .ANG. and preferably in the range of about 30-40 .ANG., so that the intercalate easily can be exfoliated into individual platelets by heating the polymer to its melting point, to provide a matrix polymer/platelet composite material.

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