Intercalates formed by co-intercalation of onium ion spacing/coupling agents and monomer, oligomer or polymer MXD6 nylon intercalants and nanocomposites prepared with the intercalates
US6232388A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 19, 1999 |
| Grant date | May 15, 2001 |
| Priority date | — |
| Expiry date | Mar 19, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K9/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Intercalated layered materials prepared by co-intercalation of an onium ion and MXD6 nylon between the planar layers of a swellable layered material, such as a phyllosilicate, preferably a smectite clay. The spacing of adjacent layers of the layered materials is expanded at least about 3 .ANG., preferably at least about 5 .ANG., usually preferably to a d-spacing of about 15-20 .ANG., e.g., 18 .ANG. with the onium ion spacing/coupling agent. The intercalation of the MXD6 nylon polymer then increases the spacing of adjacent layers an additional at least 3 .ANG., e.g., to at least about 20 .ANG., preferably about 25 .ANG. to about 30 .ANG., generally about 28 .ANG..
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.