Why Borstar?

As an innovation leader, Borealis has always been at the forefront when it comes to developing and offering unique solutions to the plastics industry. There is no better example of this than Borstar®, Borealis’ state-of-the-art multi-modal proprietary technology for PE and PP.

Borealis did not accept the traditional limitations that processing polyolefins presented to the industry. Instead, it actively sought ways to overcome these limitations and find new ways to benefit the plastics industry, the environment and society as a whole.

The Borstar process offers simultaneous improvements in conversion economics and in key environmental aspects, such as source reduction and recyclability. Borealis guarantees continued Borstar development and is further commercialising the next generation of Borstar: Borstar 2G for both polyethylene and polypropylene.

Tailoring molecular structure to meet the need

The cornerstone of our Borstar technology for manufacturing PE and PP is tailoring the molecular structure of the polyolefins to meet customers' demands. It is the only existing advanced technology designed for PE and PP which offers such a high level of process and product tailoring.

The Borstar process provides innovative polymers:

• with both good mechanical properties and good processability
• in a broad range of product applications (e.g. pipe, packaging, etc.)
• at competitive cost and less burden on the environment (e.g. downgauging)
• resulting in higher sales margins for the plastics industry and creating value for Borealis in the process

Our customers expect more and Borstar delivers. Value for our customer means delivering consistently superior property products that can be converted faster and often at lower thickness to give sustainable value.

Borstar yields a number of special property and structural benefits. These include:

• high environmental stress-cracking resistance (ESCR) 
• low shrinkage 
• long-term creep/burst resistance 
• in PP homopolymers & copolymers the stiffness/impact balance is tailored to uniquely high levels

All this comes from tailoring the resin's molecular structure in both the PE and PP processes.