Methods of controlling polyolefin melt index while increasing catalyst productivity
US10167351B2 · kind B2 · utility
1Cited by
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19Claims
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Key dates
| Filing date | Nov 24, 2015 |
| Grant date | Jan 1, 2019 |
| Priority date | — |
| Expiry date | Jan 7, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F2400/02
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The catalyst productivity of a polyolefin catalyst in the methods disclosed herein may be increased by increasing the concentration of an induced condensing agent (ICA) in the reactor system. The effect the increased ICA concentration may have on a melt index may be counteracted, if necessary, in various ways.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.