Catalysts for polymerizing olefins to spheroidal-form polymers
US4111835A · kind A · utility
50Cited by
4References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 17, 1976 |
| Grant date | Sep 5, 1978 |
| Priority date | — |
| Expiry date | Sep 17, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F10/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Supported catalysts for the high-yield polymerization of olefins to polymers which occur in spheroidal form are disclosed. The catalysts are prepared from starting components which comprise (a) organometallic compounds of metals belonging to Groups II or III of the Mendelyeev Periodic Table and (b) a product obtained by reacting a halogenated Ti compound with a Mg hydrate chloride in the form of spheroidal particles having controlled dimensions comprised between 10 and 70 microns.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.