Polymer/clay intercalates, exfoliates; and nanocomposites having improved gas permeability comprising a clay material with a mixture of two or more organic cations and a process for preparing same
US6387996B1 · kind B1 · utility
29Cited by
2References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 1, 1999 |
| Grant date | May 14, 2002 |
| Priority date | — |
| Expiry date | Dec 1, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K2201/014
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
This invention relates to a polymer-clay nanocomposite having an improved gas permeability comprising (i) a melt-processible matrix polymer, and incorporated therein (ii) a layered clay material intercalated with a mixture of at least two organic cations. The invention also relates to processes for preparing a nanocomposite and articles produced from a nanocomposite.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.