Patent ID: 11898025
Assignee: SABIC GLOBAL TECHNOLOGIES B.V.
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C | IPC C

Claim 0:
1. 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.