Sabic launches two new high-clarity polypropylenes

Sabic has extended its PP Qrystal line with the development of two new high-clarity polypropylenes. These random copolymers, suited for injection molding, were specially designed with unique flow behavior, providing processors with the flexibility to produce parts faster and with lower energy consumption, according to the company.

The new PP Qrystal grades include:
Sabic PP QR674K, with a melt flow rate (MFR) of 40 g/10min, was developed for sensitive food-contact applications, owing to its organoleptic performance. Typical target applications are caps and closures, houseware, kitchenware, and food/non-food containers.

Sabic PP QR678K, with its high MFR of 80 g/10 min, is suited for production of parts with complex shapes and/or long and narrow flow paths.

Sabic has a broad package of PP random copolymers for a wide range of applications. The Sabic PP Qrystal range, which was launched in 2010, now comprises four grades, with MFRs ranging from 25-80 g/10 min.

The company claims all of its PP Qrystal grades have a good balance of impact strength and stiffness and enable customers to produce parts without losing transparency or aesthetics.

"When we started developing the Sabic PP Qrystal range, we looked at how we could develop materials that not only yielded a better finished product, but which also enabled our direct customers, the injection molding companies, to produce them as cost-effectively as possible," said Ricardo Calumby, technical marketing engineer PP at Sabic.

The Sabic PP Qrystal grade family is produced both in Europe and the Middle East and can be delivered globally.

"We have substantial technical resources in-house, but it's only by developing long-term relationships with our customers and listening to what they really want, that we can use expertise from both sides to channel those resources in exactly the right direction," Calumby said. "I think the launch of these new grades demonstrates that this cooperative process is working very well. We have best-in-class aesthetics that are achievable within a broadened processing window."