C - Chemistry – Metallurgy – 08 – K
Patent
C - Chemistry, Metallurgy
08
K
C08K 9/04 (2006.01) C01B 33/44 (2006.01) C08K 5/06 (2006.01) C08K 5/103 (2006.01) C08K 5/17 (2006.01)
Patent
CA 2586792
An intercalated layered silicate comprises a layered silicate and an intercalating agent sorbed between the silicate layers of the layered silicate. The amount of intercalating agent is effective to provide an average interlayer spacing between the silicate layers of at least about 20~. The intercalating agent has a formula selected from formulas I through VII described herein. The intercalated layered silicate may be exfoliated by mixing it with a matrix medium and adding sufficient energy to form a dispersed-particle composition. A packaging film, such as a food packaging film, may comprise the dispersed-particle composition
La présente invention a trait à un silicate en couches intercalé comportant un silicate en couches et un agent intercalant sorbé entre les couches de silicate du silicate en couches. La quantité d'agent intercalant est efficace pour assurer un espacement inter-couches moyen entre les couches de silicate égal ou supérieur à environ 20 Å. L'agent intercalant est d'une formule choisie parmi les formules I à VII définies dans la description. Le silicate en couches intercalé peut être expansé par mélange avec un milieu matriciel et par ajout d'énergie suffisante pour la formation d'une composition de particules dispersées. Un film d'emballage, tel qu'un film d'emballage alimentaire, peut comporter la composition de particules dispersées.
Bartels Jeremy
Beall Gary W.
Becraft Michael L.
Grah Michael D.
Speer Drew V.
Cryovac Inc.
Smart & Biggar
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