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US 2022/0177614 A1Published application
Polyethylene and Its Chlorinated Polyethylene
AssigneeLG Chem, Ltd.
InventorsEun Kyoung Song, Sun Mi Kim, Si Jung Lee, Bog Ki Hong, Cheolhwan Jeong, Daesik Hong
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Abstract
The present disclosure relates to a polyethylene, which is reacted with chlorine to prepare a chlorinated polyethylene having excellent chlorination productivity and thermal stability by enabling an increase in chlorination temperature, and facilitating deoxidation, dehydration and drying processes during chlorination processing, by implementing an enlarged area of the middle and high molecular weight regions in the molecular structure of the polyethylene.
Claims18
A polyethylene, having:
- a MI5 (a melt index measured at 190° C. under a load of 5 kg) of 0.55 g/10 min or less,
- a MI21.6 (a melt index measured at 190° C. under a load of 21.6 kg) of 6 g/10 min or less,
- a complex viscosity (η*(ω0.05)) of 68000 Pa·s or more, measured at a frequency (ω) of 0.05 rad/s, and
- a complex viscosity (η*(ω500)) of 900 Pa·s to 1600 Pa·s, measured at a frequency (ω) of 500 rad/s.
1 more element
Dependencies are inferred from the claim text.