Method for minimizing filler agglomeration
US7354967B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jul 31, 2003 |
| Grant date | Apr 8, 2008 |
| Priority date | — |
| Expiry date | Sep 20, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J3/201
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method for minimizing nanofiller agglomeration within a polymeric material includes the step of introducing the nanofiller at predetermined parameters into an extruder having the polymeric material therein. The nanofiller introduction is downstream of the area of the extruder wherein the polymeric material had been substantially melted and mixed. After the nanofiller introduction, the melted polymeric material has the nanofiller dispersed therewithin substantially without agglomerated nanofiller. Then the melted polymeric material having nanofiller dispersed therewithin exits the extruder before nanofiller agglomeration occurs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.