BorPure organoleptic HDPE brings the
"as bottled" taste for caps and closures

BorPure™ enables

• Downgauging potential
• Step change innovation
• Energy saving up to 10%

BorPure, comprising multimodal high density polyethylene (HDPE) products, brings greater benefits which means improved processing for the converter, enhanced aesthetics for the brand owner and greater user friendliness and convenience for the consumer. It is based on multimodal technology that provides outstanding flowability compared to unimodal material solutions. The multimodality gives better organoleptic behaviour, thereby ensuring preservation of the “as bottled” taste of the product.

Initially the BorPure PE product family consists of three grades developed to meet specific cap and closure needs:

BorPure MB6561 for still and sparkling water, and carbonated soft drinks

BorPure MB6562 for carbonated soft drinks

BorPure MB7541 for still water

Borealis also offers a BorPure polypropylene (PP) grade, BorPure RE450MO. This grade is a unique PP random copolymer with organoleptic properties. It is designed to fulfil the needs of the bottled water, sports and energy drinks market. BorPure RE450MO retains its natural taste of the liquid inside while delivering design possibilities not previously available with existing PE or PP caps.

The multimodal BorPure grades save 10% energy cost

Each grade can be injection or compression moulded. Besides a good low temperature impact strength, these grades also show a superior flow and processing. The high flowability of BorPure MB6561 and MB7541 brings energy savings up to 10%. Furthermore, the lower holding pressure necessary with these materials leads to reduced internal stress and, consequently, higher environmental stress crack resistance (ESCR).

Table 1: Flowability of BorPure versus Unimodal
Flowability of BorPure MB6561 and Borpure MB7541 is higher than the same melt flow rate (MFR) unimodal materials generating a potential 10% energy saving.

High ESCR allowing for potential downgauging

The following graph describes how much higher the environmental stress crack resistance (ESCR) of BorPure compared to unimodal produced materials is.

Table 2: ESCR of BorPure versus Unimodal
ESCR of BorPure is far higher than unimodal materials allowing for potential downgauging

Step change innovation

In response to the faster growing demand for polyethylene (PE) materials for standardised caps for bottled water, juices and carbonated soft drinks, Borealis has taken innovation to the next level.

For more detailed information please contact:

Marcus Kothe, Sales Manager, Business Unit Moulding
Tel. +49/(0)172/858 98 63 or marcus.kothe@borealisgroup.com