Methods for making catalyst compositions and polymer products produced therefrom
US9975974B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 13, 2016 |
| Grant date | May 22, 2018 |
| Priority date | — |
| Expiry date | Oct 13, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J5/18
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Methods for making olefin polymerization catalysts and methods for making polymers using the catalysts are provided. The method for making the catalyst can include combining one or more supports with one or more magnesium-containing compounds under reaction conditions to form a first reacted product. One or more chlorinating compounds selected from the group consisting of aluminum alkyl chlorides and chloro substituted silanes can be combined with the first reacted product under reaction conditions to form a second reacted product. One or more titanium-containing compounds selected from the group consisting of titanium alkoxides and titanium halides can be combined with the second reacted product under reaction conditions to form a catalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.