Polymerization process
US4056669A · kind A · utility
14Cited by
3References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 9, 1973 |
| Grant date | Nov 1, 1977 |
| Priority date | — |
| Expiry date | Jul 9, 1993 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S526/908
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Polymerization of ethylene using a transition metal hydrocarbyl complex, especially zirconium tetrabenzyl, supported on alumina consisting of substantially spherical particles having diameters in the range 20-150 .mu.m. The particulate polymer produced by the process contains substantially no "fines" (i.e. particles <100 .mu.m diameter) and has improved pourability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.