Sabic Global Technolgoies B.v.

Sadasivam Gopalakrishnan

Anantharaman Dhanabalan

Maria Soliman

Anirban Ganguly

Susanta Mitra

Abderrahman Meddad

Shaneesh Vadake Kulangara

Sangita Nandi

Chandrashekhar Lingannaiah

Bander Al-Farhood

Debasish Banerjee

Kummetha Raghunatha Reddy

Anshita Sudarshan

Prem Prakash Pathak

Sharmila Muthukrishnan

Radha Kamalakaran

Kavya At

Kankan Bhaumik

Carolus Wilsens

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.

Polyethylene with additives for increased environmental stress crack resistance

Polymer blends, methods of making the polymer blends, and articles of manufacture that include the polymer blends are described. A polymer blend can include a high density polyethylene (HDPE) polymer and a random block copolymer. The random block copolymer can include two different saturated alkane blocks between aromatic blocks (e.g., two styrenic blocks).

Polyethylene compositions with improved environmental stress cracking resistance and methods of use

A polyethylene composition having increased environmental stress crack resistance (ESCR) is comprised of a polymer blend of a high density polyethylene (HDPE) and a polycarbonate-siloxane copolymer. The polycarbonate-siloxane copolymer is present in the polymer blend in an amount of from 0.5 wt. % to 15 wt. % by total weight of the polymer blend. In a method of forming a polyethylene composition having increased ESCR, a HDPE is modified by combining the HDPE with a polycarbonate-siloxane copolymer in a polymer blend, the polycarbonate-siloxane copolymer 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.

Polyethylene with polycarbonate-siloxane for increased environmental stress crack resistance

The present invention relates to a polymer composition comprising&#x2014;polycarbonate; -(meth)acrylic polymer; and-&#x2265;1.0 and &#x2264;10.0 wt % polyalkylene glycol with regard to the total weight of the polymer composition. Such polymer composition can be produced by for example a conventional compounding process using melt extrusion, wherein polycarbonates and PMMA can be converted into a polymer composition having the desired properties without need for using dedicated process equipment.

Composition comprising a (meth)acrylic polymer and polycarbonate

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Sadasivam Gopalakrishnan