Intercalated layered silicate
US8568808B2 · kind B2 · utility
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59Claims
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Key dates
| Filing date | Dec 2, 2005 |
| Grant date | Oct 29, 2013 |
| Priority date | — |
| Expiry date | Feb 13, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/265
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
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 Å. 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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.