Process for the preparation of an olefinic copolymer having polar groups and the products obtained therefrom
US11603419B2 · kind B2 · utility
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16Claims
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Key dates
| Filing date | Dec 4, 2017 |
| Grant date | Mar 14, 2023 |
| Priority date | — |
| Expiry date | Jan 4, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F2420/01
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention concerns a process for the preparation of a copolymer comprising the steps of copolymerizing under suitable reaction conditions at least one first type of olefin monomer and at least one second type of functionalized olefin monomer using a catalyst system to obtain a polyolefin main chain having one or multiple functionalized short chain branches, the catalyst system comprising: i) a single-site catalyst or catalyst precursor comprising a metal selected from Ti3+ or Cr3+; ii) a co-catalyst; iii) optionally a scavenger.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.