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Green Materials: Sabic’s Elcrin upcycled PBT compounds; Indorama’s Deja rPET resins



Myanmar’s plastic makers in conflict with imported goods

Chemical firm Sabic has introduced its LNP Elcrin iQ portfolio of polybutylene terephthalate (PBT) compounded resins derived from recycled polyethylene terephthalate (rPET) to support the circular economy and help reduce plastic waste. products also offer a smaller cradle-to-gate environmental footprint than virgin PBT resin, as measured by Cumulative Energy Demand (CED) and Global Warming Potential (GWP).

The Elcrin iQ compounds and blends are based on upcycled iQ PBT resins, a proprietary Sabic technology. This technology overcomes some of the limitations of mechanical recycling by using chemical processes to depolymerise PET bottles and other PET waste into their precursor chemicals, purify them and then use them to create new PBT resin. The technology can deliver performance and processing benefits such as good chemical resistance, colourability, high flow for faster throughput and flame retardance (FR).

The new resin is a drop-in solution for virgin PBT and other conventional PBT materials, making it easier for manufacturers to make their products more sustainable. It is also able to reduce the energy and carbon footprint of the material by up to 61% and 49%, respectively (The original peer-reviewed life cycle assessment study was completed by Sabic in 2011. The results are being reviewed and updated based on current models, with expected completion and peer-review in 2019, says Sabic).

Further, each kilogram of the resin uses up to 67 post-consumer PET water bottles (0.5 l).

The portfolio is also said to offer multiple options, including glass and mineral-reinforced grades and non-halogenated FR and UV-resistant formulations. Some of the LNP iQ grades have even have the potential to achieve compliance with US Food & Drug Association (FDA) food contact regulations.

Potential applications for these new polymers include internal and aesthetic components for consumer electronics, automotive connectors, and housings for medical devices.

Meanwhile in other news, Thailand-headquartered chemical firm Indorama Ventures Public Company Limited (IVL) is offering new 100% rPET (recycled PET) under the brand Deja.

Indorama says the rPET is available in various forms such as recycled flake, pellet, fiber and filament for use in multiple applications. Headquartered in Bangkok, Thailand, IVL has operating sites in 31 countries on five continents and a global manufacturing footprint across Africa, Asia, Europe and North America.

The rPET products are derived by recycling 140 kilotonne/year of plastic bottles. Indorama says it has been at the forefront of the process in developing the technology to convert rPET bottles into highly usable products for over 40 years.

With unique access to Indorama’s global recycling sources the Deja resin has complete traceability from source to supply.

(PRA)


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