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AssigneeSabic Global Technologies B.V.
InventorsAnantharaman Dhanabalan, Shaneesh Vadake Kulangara, Maria Soliman, Radha Kamalakaran, Anshita Sudarshan, Sadasivam Gopalakrishnan, Anirban Ganguly
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A polyethylene composition having increased environmental stress crack resistance comprises a polymer blend of a multimodal high density polyethylene (HDPE) and an additive of at least one of a polycarbonate-siloxane copolymer, a polyethylene glycol (PEG) having an average molecular weight (Mw) of at least 2000, and a random block copolymer comprising two different saturated alkane blocks between two aromatic hydrocarbon blocks. The additive is present in the polymer blend in an amount of from 1 wt. % or less by weight of the polymer blend.
A polyethylene composition having increased environmental stress crack resistance, the composition comprising a polymer blend of a multimodal high density polyethylene (HDPE) and an additive of a polycarbonate-siloxane copolymer and optionally at least one of a polyethylene glycol (PEG) having weight average molecular weight (Mw) of at least 2000, and a random block copolymer comprising two different saturated alkane blocks between two aromatic hydrocarbon blocks, the additive being present in the polymer blend in an amount of 0.1 to 0.9 wt. % by weight of the polymer blend.
A method of forming a polyethylene composition having increased environmental stress crack resistance, the method comprising:
Dependencies are inferred from the claim text.