Process for the preparation of polymerized polyethylene wax
AssigneeSCG Chemicals Co., Ltd.
InventorsSaovalak Sripothongnak, Thawesak Parawan, Nittiphat Nealmongkolrattana, Tossapol Khamnaen, Sumate Charoenchaidet
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Abstract
The present invention relates to a process for the preparation of a polyethylene wax, the process comprising the steps of providing a catalyst solution, wherein the catalyst solution comprises at least one activating compound, an alkylaluminoxane and a me-tallocene complex, wherein the molar ratio of the activating compound to aluminum comprised in the alkylaluminoxane is from 0.0005 to 0.20; and polymerizing ethylene, by contacting the ethylene and the catalyst solution.
Claims20
A process for the preparation of a polyethylene wax, the process comprising the steps:
- (i) providing a catalyst solution,
- wherein the catalyst solution comprises at least one activating compound, an alkylaluminoxane and a metallocene complex, wherein a molar ratio of the activating compound to aluminum in the alkylaluminoxane is from 0.002 to 0.12;
- and
- (ii) polymerizing ethylene, by contacting the ethylene and the catalyst solution,
- wherein the activating compound is selected from the group consisting of phenol, 2,6-bis(tert-butyl)-4-methylphenol, 2,3,4,5,6-pentafluorophenol, 2,3,5,6-tetrafluorophenol, 2,4,6-trifluorophenol, 2,5-difluorophenol, 3,5-difluorophenol, 4-fluorophenol, 3,5 bis(trifluoromethyl)phenol, trifluoromethanol, 1,1,2,2,2-pentafluoroethanol, 2,2,2-trifluoroethanol, 1,1,1,3,3,3-hexafluoro-2-(trifluoromethyl)propan-2-ol, 1,1,1,3,3,3-hexafluoropropan-2-ol, 1,1,1-trifluoropropan-2-ol, 2,2,3,3-tetrafluoropropan-1-ol, 2,2,3,3,3-pentafluoropropan-1-ol, 1,3-difluoropropan-2-ol, methanesulfonic acid, 4-methylbenzenesulfonamide, 4-methylbenzenesulfonic acid, trifluoromethanesulfonic acid, 4-fluorophenylboronic acid, phenylboronic acid, pyridine, 1H-indole and mixtures thereof.
Dependencies are inferred from the claim text.