Process for the preparation of ethylene-higher alpha olefin polymers (P-891)
US4306041A · kind A · utility
64Cited by
2References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 14, 1980 |
| Grant date | Dec 15, 1981 |
| Priority date | — |
| Expiry date | Mar 14, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F210/18
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A method for obtaining improved diene conversion in the manufacture of EPDM type terpolymers is disclosed in which the polymerization reaction is conducted in a series of two or more stirred reactors with substantially all of the non-conjugated diene monomer being fed to the first reactor to thereby produce a polymer that has a non-uniform diene content.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.