Cotton fiber dissolution and regeneration and 3D printing of cellulose based conductive composites
US10311993B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 18, 2016 |
| Grant date | Jun 4, 2019 |
| Priority date | — |
| Expiry date | Jan 22, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/34
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The present invention includes composition and methods for a core matrix comprising a dissolved cellulose fiber of, e.g., high molecular weight (DP>5000) or microcrystalline cellulose of low molecular weight (DP: 150-300), printed into a two or three dimensional pattern; a conductive material comprising a carbon nanotube or graphene oxide disposed on or about the cellulose fiber or microcrystalline cellulose; and an enhancer or stabilizer that stabilizes the dissolved cellulose or microcrystalline cellulose disrupted during a printing process, wherein the conductive material and the cellulose or microcrystalline cellulose forms one or more features in or on the cellulose fiber or microcrystalline cellulose.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.