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US 12,304,976 B2Granted
Polyethylene and chlorinated polyethylene thereof
AssigneeLG Chem, Ltd.
InventorsCheolhwan Jeong, Si Jung Lee, Bog Ki Hong, Sunghyun Park, Sun Mi Kim, Yi Young Choi
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Abstract
A polyethylene according to the present disclosure maintains a stable crystal structure at a high temperature and ensures excellent uniformity in chlorine distribution, thereby preparing a chlorinated polyethylene having excellent chlorination productivity and thermal stability by reacting with chlorine, and may also prepare a PVC compound with improved impact strength by including the chlorinated polyethylene.
Claims19
A polyethylene having an alpha transition temperature of 120° C. or more, and
- a crystalline region ratio on a temperature rising elution fractionation (TREF) graph of 12.5% or less, wherein the crystalline region ratio is obtained by dividing a graph area of a crystalline region having an elution temperature or more by a total graph area in percentage, wherein the elution temperature is a splitting point corresponding to a smallest peak between two highest peaks,
- wherein the polyethylene is an ethylene homopolymer.
Dependencies are inferred from the claim text.