Nanocomposite articles and process for making
US6818163B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 16, 2001 |
| Grant date | Nov 16, 2004 |
| Priority date | — |
| Expiry date | Nov 16, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J5/005
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An improved process for making a structural foamed polymer, a multilayer polymer film, sheet or tube, a pultrusion polymer profile, a compression molded extruded fiber reinforced polymer pre-form, a strand foamed polymer and a SCORIM formed polymer article. The improvement includes the step of dispersing a multi-layered silicate material with the polymer so that the polymer has dispersed therein single layers of silicate material, double layers of silicate material, triple layers of silicate material, four layers of silicate material, five layers of silicate material and more than five layers of silicate material, the volume percent of the one, two, three, four and five layers of silicate material greater than the volume percent of the more then five layers of silicate material. In each of the above embodiments an important benefit of the instant invention is the orientation of the plane of the layers of silicate material. Preferably, most of the layers of silicate material have substantially the same orientation within thirty degrees of angle. Such orientation improves the properties of the product and provides a practical way to make larger products. The amount of multi-layered s…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.