Method for producing catalyst component for olefin polymerization, method for producing catalyst for olefin polymerization, and method for producing olefin polymer
US12103987B2 · kind B2 · utility
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4References
12Claims
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Key dates
| Filing date | Mar 17, 2020 |
| Grant date | Oct 1, 2024 |
| Priority date | — |
| Expiry date | Oct 22, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F2420/07
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to a method for producing a catalyst component for olefin polymerization, the method including step (3): granulating, by a spray drying, an aqueous slurry of an ion-exchangeable second layered silicate (B) that satisfies that an average particle diameter is 0.03 μm to 0.4 μm, and a Rosin-Rammler distribution constant n determined from a particle size distribution is 1.5 or more; and step (4): bringing the obtained first layered silicate granulated particles (C) into contact with acid to obtain chemically treated ion-exchangeable second layered silicate granulated particles (D).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.