Reduced crystallinity polyethylene oxide with intercalated clay
US6555610B1 · kind B1 · utility
5Cited by
27References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 17, 2000 |
| Grant date | Apr 29, 2003 |
| Priority date | — |
| Expiry date | May 16, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S977/897
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a method of forming a polymer composite comprising mixing smectite clay and polyvinyl pyrrolidone to form a first dispersion of intercalated clay, mixing said dispersion with polyethylene oxide to form a second dispersion, flowing said second dispersion into ketone so as to flocculate a polymer composite of polyethylene oxide and intercalated clay and recovering said flocculate, wherein the polyethylene oxide is rendered to reduced crystallinity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.