Method of improving the oxidative thermal stability of ethylene polymers
US5756659A · kind A · utility
59Cited by
23References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 21, 1994 |
| Grant date | May 26, 1998 |
| Priority date | — |
| Expiry date | Oct 21, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C48/762
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method of improving the oxidative thermal stability of ethylene polymers is disclosed. The method comprises removing residual unreacted monomer(s), solvent and thermally unstable species from the molten polymer. The resulting polymer is characterized by having an oxidative exotherm of not more than about 50 percent of the original polymer, as measured by differential scanning calorimetry.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.