Polymer alloy material and process for production thereof
US5367048A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 19, 1992 |
| Grant date | Nov 22, 1994 |
| Priority date | — |
| Expiry date | Jun 19, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2379/08
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A polymer alloy material is produced by a process including the step of heating a powdered precursor material comprising polymer particles having an average particle size less than about 1000 .mu.m to a temperature less than the melting point of the polymer at a pressure of at least about 5 MPa to produce the polymer alloy material. Preferably the powdered precursor material is produced by mechanically milling a polymer to provide a powdered precursor material having an average particle size in the range of from about 0.5 .mu.m to about 200 .mu.m. The invention is particularly suited for processing a single polymer or a mixture of two or more polymers which are otherwise difficult to process at a temperature less than the melting point of the polymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.