Polyethylene with polyethylene glycol with increased environmental stress crack resistance
AssigneeSabic Global Technologies B.V.
InventorsAnantharaman Dhanabalan, Maria Soliman
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Abstract
A polyethylene composition having increased environmental stress crack resistance (ESCR) is comprised of a polymer blend of a high density polyethylene (HDPE) and polyethylene glycol (PEG). The PEG is present in the polymer blend in an amount of from 0.5 wt. % to 15 wt. % by total weight of the polymer blend. The PEG may have an average molecular weight of from 2000 to 40,000. In a method of forming a polyethylene composition having increased ESCR, a HDPE is modified by combining the HDPE with PEG in a polymer blend, the PEG being present in an amount of from 0.5 wt. % to 15 wt. % by total weight of the polymer blend. The polymer blend can be formed into an article of manufacture, such as a bottle cap.
Claims18
A polyethylene composition having increased environmental stress crack resistance, the composition comprising a polymer blend of a high density polyethylene (HDPE) and polyethylene glycol (PEG) present in an amount of from 2.5 wt. % to 15 wt. % by total weight of the polymer blend.
A method of forming a polyethylene composition having increased environmental stress crack resistance, the method comprising modifying a high density polyethylene (HDPE) by combining the HDPE with a polyethylene glycol (PEG), the PEG being present in an amount of from 2.5 wt. % to 15 wt. % by total weight of the polymer blend.
Dependencies are inferred from the claim text.