Polymer composite material and process for preparing the same
US6472460B1 · kind B1 · utility
12Cited by
6References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 29, 1999 |
| Grant date | Oct 29, 2002 |
| Priority date | — |
| Expiry date | Nov 29, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C48/03
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Polymeric composites may be produced by a process comprising melt-kneading an organophilic clay and a polymer at an average reduced pressure of at 5×104 Pa, a maximum reduced pressure of at least 1×105 Pa, and a total shear strain between 105 and 107, and/or a total shear energy per unit volume falling between 1010 and 1014 Pa. Polymeric composites produced under these conditions may have 50% or more of the entire layers of the layered organophilic clay dispersed as monolayers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.