Procatalyst for polymerization of olefins comprising an aminobenzoate internal donor and a 1,3-diether internal donor in a specific ratio
US10730971B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 17, 2016 |
| Grant date | Aug 4, 2020 |
| Priority date | — |
| Expiry date | Jun 17, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F110/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process for preparing a procatalyst for polymerization of olefins, comprising contacting a magnesium-containing support with a halogen-containing titanium compound, a first internal electron donor represented by Formula A, a second internal electron donor represented by Formula B, and an activator; wherein the molar ratio of the first internal donor to the second internal donor is between 0.01 and 0.7; wherein in Formula A each R80 group is independently a substituted or unsubstituted aromatic group; and R81, R82, R83, R84, R85, R86 and R87 are each independently selected from a hydrogen or a hydrocarbyl group; wherein in Formula B R51 and R52 are each independently selected from a hydrogen or a hydrocarbyl group; and R53 and R54 are each independently selected from hydrogen, a halide or a hydrocarbyl group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.