MOSCOW (MRC) -- Clariant, a world
leader in specialty chemicals, now offers enhanced formulations of CESA-extend
masterbatches that restore important material properties to recycled
condensation polymers including PET, PLA, and polycarbonate (PC), as per Plastemart.
This means even high
percentages of regrind can be incorporated with virgin resin without
significantly reducing physical properties required in food-contact and other
high-performance packaging applications.
The latest CESA-extend
masterbatches provide a simple, low-cost solution for increasing molecular
weight and restoring physical properties, melt strength, and processability that
are lost when PET and PLA polymer chains break down during processing and
recycling. When added to these recycled materials during processing, CESA-extend
masterbatches react with, and re-link, broken polymer chains. Long polymer
chains are essential in both PET and PLA extrusion because they give the
extruded material the tensile strength essential for good performance when
formed into packaging materials.
"CESA-extend masterbatches give
processors an affordable, sustainable way to meet growing market demands for
higher levels of recycled content in food packaging applications. One of our
customers was even able to achieve acceptable results using 100% regrind," says
Peter Prusak, Clariant Head of Marketing for North America.
CESA-extend masterbatches are available in standard and custom formulations, and
can be used to control or enhance a range of material parameters, including
melt-flow index (MFI), intrinsic viscosity, hydrolytic stability, mechanical
properties and clarity. They can also be custom formulated to provide both
linear and branched chain extension.
As MRC informed before,
in March 2017, Clariant announced that it had been awarded a contract by
Dongguan Grand Resource Science & Technology Co. Ltd. to develop a new
propane dehydrogenation unit in cooperation with CB&I. The project includes
the license and engineering design of the unit, which is to be built in Dongguan
City, Guangdong Province, China. The Dongguan plant will be one of the largest
single-train dehydrogenation units in the world. Clariant's technology partner
CB&I will base the plant's design on its Catofin® catalytic dehydrogenation
technology, which uses Clariant's tailor-made Catofin catalyst and Heat
Generating Material (HGM).
Clariant AG is a Swiss chemical company and a
world leader in the production of specialty chemicals for the textile, printing,
mining and metallurgical industries. It is engaged in processing crude oil
products in pigments, plastics and paints. Clariant India has local masterbatch
production activities at Rania, Kalol and Nandesari (Gujarat) and Vashere
(Maharashtra) sites in India.