Method for synthesising a rare earth organophosphate and use thereof to prepare a “preformed” catalytic system
US9090637B2 · kind B2 · utility
3Cited by
5References
27Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | May 18, 2010 |
| Grant date | Jul 28, 2015 |
| Priority date | — |
| Expiry date | Sep 1, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K6/842
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The invention relates to a process for preparing a rare-earth organophosphate in the form of a fluid or not very viscous solution that can be used as is for the preparation of a “preformed” catalyst system intended, in particular, for the cis-1,4 stereospecific polymerization of conjugated dienes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.