Intercalates and exfoliates formed with long chain (c6+) or...

C - Chemistry – Metallurgy – 01 – B

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C01B 33/44 (2006.01) C08K 3/34 (2006.01) C08K 9/04 (2006.01) C08K 9/08 (2006.01) C08K 9/12 (2006.01) C09C 1/42 (2006.01) C09C 3/10 (2006.01)

Patent

CA 2223350

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.

Intercalats formés par mise en contact d'une matière en feuillet, p. ex. un phyllosilicate, avec un modificateur de surface intercalant choisi parmi le groupe constitué d'un composé portant un radical alkyle contenant au moins 6 atomes de carbone, un composé contenant un noyau aromatique et des mélanges de ces derniers, ledit modificateur de surface comprenant un groupe fonctionnel qui réagit avec la matière matrice, pour sorber ou intercaler le modificateur de surface intercalant entre les lamelles adjacentes de la matière en feuillet. Une quantité suffisante de modificateur de surface intercalant est sorbée entre les lamelles adjacentes pour accroître l'espacement entre les lamelles adjacentes à au moins environ 10 Angstroms jusqu'à environ 100 Angstroms. Le complexe intercalé peut être combiné avec un liquide organique dans une matière de transport visqueuse pour l'administration de la matière de transport, ou pour l'administration d'un composé actif; ou le complexe intercalé peut être combiné avec un polymère matriciel pour former une matrice polymérique forte additionnée d'une charge.

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