Use of radical scavengers to reduce fouling during high pressure polymerization
AssigneeDow Global Technologies LLC
InventorsSean W. Ewart, Alexander Williamson, Ivan A. Konstantinov
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AssigneeDow Global Technologies LLC
InventorsSean W. Ewart, Alexander Williamson, Ivan A. Konstantinov
Estimating the term…
Embodiments of methods of producing high pressure ethylene-based polymer comprise polymerizing via free-radical polymerization at a pressure of at least 1000 atmospheres (atm) an ethylene monomer feed and optionally additional comonomer feed in the presence of radical scavenger to produce the high pressure ethylene-based polymer, wherein the radical scavenger comprises Structure 1: wherein: n can be 0 to 100; R1, R2 and R3 are each independently H, (C1-C40)hydrocarbyl, (C1-C40)heterohydrocarbyl, or an aromatic containing moiety; and R4-R8 are each independently H, OH, (C1-C40)hydrocarbyl, (C1-C40)heterohydrocarbyl, or an aromatic containing moiety with the proviso that at least one of R4-R8 needs to be OH.
A method of producing high pressure ethylene-based polymer comprising:
9-14. (canceled)
A high pressure ethylene-based polymer produced by a method comprising:
Dependencies are inferred from the claim text.