Gary W Beal

US Patent:

62425005, Jun 5, 2001

Filed:

May 26, 2000

Appl. No.:

9/580999

Inventors:

Tie Lan - Palatine IL
Ying Liang - Palatine IL
Semeon Tsipursky - Lincolnwood IL
Gary W. Beal - McHenry IL

Assignee:

AMCOL International Corporation - Arlington Heights IL

International Classification:

B01D 2101

US Classification:

516101

Abstract:

Intercalates formed by contacting a layered material, e. g. , a phyllosilicate, with an intercalant surface modifier selected from the group consisting of a compound having an alkyl radical containing at least 6 carbon atoms, a compound containing an aromatic ring, and mixtures thereof, said surface modifier including a matrix material-reactive functional group, to sorb or intercalate the intercalant surface modifier between adjacent platelets of the layered material. Sufficient intercalant surface modifier is sorbed between adjacent platelets to expand the adjacent platelets to at least about 10. ANG. , up to about 100. ANG. The intercalated complex can be combined with an organic liquid into a viscous carrier material, for delivery of the carrier material, or for delivery of an active compound; or the intercalated complex can be combined with a matrix polymer to form a strong, filled polymer matrix.

US Patent:

60573961, May 2, 2000

Filed:

Aug 11, 1997

Appl. No.:

8/907950

Inventors:

Tie Lan - Palatine IL
Gary W. Beal - McHenry IL
Semeon Tsipursky - Lincolnwood IL

Assignee:

AMCOL International Corporation - Arlington Heights IL

International Classification:

C08K 300

US Classification:

524445

Abstract:

The present invention discloses intercalates formed by contacting a layered material, e. g. , a phyllosilicate, with an intercalant monomer surface modifier including an alkyl radical having at least 6 carbon atoms and a polymerizable monomer, oligomer or polymer. The intercalant monomer surface modifier converts the interlayer region of the layered materials from hydrophilic to hydrophobic, therefore, polymerizable monomers, oligomers or polymers can be easily intercalated into the interlayer spacing. The co-presence of the intercalant monomer surface modifier and polymerizable monomer, oligomer or polymer provide an environment for more polymerizable monomers, oligomers or polymers to be intercalated into the interlayer spacing and the intercalates are readily exfoliated into polymer matrices to form nanocomposites. The nanocomposites (e. g. , epoxy-clay) prepared from the intercalates demonstrated enhanced mechanical, thermal and chemical resistance compared with pristine polymer matrices.

US Patent:

61243655, Sep 26, 2000

Filed:

Sep 19, 1997

Appl. No.:

8/933680

Inventors:

Tie Lan - Palatine IL
Ying Liang - Palatine IL
Semeon Tsipursky - Lincolnwood IL
Gary W. Beal - McHenry IL

Assignee:

AMCOL Internatioanl Corporation - Arlington Heights IL

International Classification:

B01D 2101

US Classification:

516101

Abstract:

Intercalates formed by contacting a layered material, e. g. , a phyllosilicate, with an intercalant surface modifier selected from the group consisting of a compound having an alkyl radical containing at least 6 carbon atoms, a compound containing an aromatic ring, and mixtures thereof, said surface modifier including a matrix material-reactive functional group, to sorb or intercalate the intercalant surface modifier between adjacent platelets of the layered material. Sufficient intercalant surface modifier is sorbed between adjacent platelets to expand the adjacent platelets to at least about 10. ANG. , up to about 100. ANG. The intercalated complex can be combined with an organic liquid into a viscous carrier material, for delivery of the carrier material, or for delivery of an active compound; or the intercalated complex can be combined with a matrix polymer to form a strong, filled polymer matrix.