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Clariant offers masterbatches that restore recycled PET, PLA for high-value packaging needs

April 19/2017

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.

Pelletized 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.


mrcplast.com
Author:Margaret Volkova
Tags:PC, PP, PET, propylene, sheet extrusion, packaging, masterbatches, Clariant International, China.
Category:General News
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