Clariant

Clariant launches new CESA® ProTect brand oxygen scavenger additives for polyester packaging

  • Unmatched shelf-life extension for packaged food and beverages
  • Bottles for fruit juice and beer are large target markets
  • Combines enhanced food protection with sustainable packaging design

Muttenz, October 21, 2019 – Clariant, a focused, innovative and entrepreneurial specialty chemical company, today announced the creation of a new brand of patent protected oxygen scavenger additive masterbatches – CESA ProTect.

The primary target market for the new additive masterbatch is monolayer polyethylene terephthalate (PET) packaging, although it may also be beneficial for other polyester-based materials. Well known for its ubiquitous use in soft-drink and water bottles, PET has many advantages. Compared to other polymers, it has excellent transparency, is food contact compliant, easy to process and it is the most recycled polymer today.

“PET is already a good barrier material,” notes Antonello Decortes, Global Product Manager at Clariant, “but sensitive applications may still suffer from oxygen inlet. This is not a problem for water or most carbonated soft drinks, but fruit juices lose vitamin potency and undergo a color shift, dairy products can sour, coffee capsules suffer flavor loss, and as little as 1 ppm of oxygen can change the taste and odor of beer. CESA ProTect additives can help extend the shelf life of these products and ensure that less food is thrown away.”

The active ingredients in CESA ProTect masterbatches do not slow down penetration of oxygen through the container’s PET wall. Instead, it is an “oxygen scavenger,” which absorbs O2 molecules as they enter so they cannot reach the protected product.

CESA ProTect is active only after processing, and PET-treated containers are protected after production and can be filled and shipped. CESA ProTect is also suitable for cold chain distribution as it has perfomed well when used on refrigerated products.

Exactly how long CESA ProTect additive masterbatches can protect food and beverages, Decortes says, depends on a number of factors, including additive loading, package size and design. In testing of a 23g, 0.5-liter bottle, a 3,6% loading of CESA ProTect masterbatch successfully held oxygen levels below 1 ppm for 588 days or more than 18 months. In contrast, untreated PET maintained levels below 1 ppm for just 22 days, and a competitive oxygen scavenger lasted just 63 days. Even at a loading of 2%, CESA ProTect masterbatches were found to be effective for 266 days.

“Based on these test results,” says to Alessandro Dulli, Global Head of Segment and Business Development, Packaging, “we believe that CESA ProTect is one of the most powerful oxygen-scavenging masterbatch on the market.”

CESA ProTect masterbatch also appears to have little, if any, impact on appearance or mechanical properties of the packaging. When CESA ProTect is used at recommended dosages, finished containers of different sizes and shapes maintain a level of transparency in line with market expectations. The product is highly compatible with PET and does not appear to impact processing. Food contact approvals are pending.

To discover more on how Clariant is supporting a circular economy for plastics through sustainable innovations and collaborations, please visit us in hall 8A, booth J11. Our press kit is available for download on www.clariant.com/K2019

CESA® IS A TRADEMARK OF CLARIANT REGISTERED IN MANY COUNTRIES.

Reader enquiries

Clariant International Ltd
Rothausstrasse 61
4132 Muttenz 1
Switzerland
+41 61 469 6742
www.clariant.com
@clariant
clariant
ClariantInternational
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Notes for editors

www.clariant.com

Clariant is a focused and innovative specialty chemical company, based in Muttenz near Basel/Switzerland. On 31 December 2018 the company employed a total workforce of 17 901. In the financial year 2018, Clariant recorded sales of CHF 4.404 billion for its continuing businesses. The company reports in three business areas: Care Chemicals, Catalysis and Natural Resources. Clariant’s corporate strategy is based on five pillars: focus on innovation and R&D, add value with sustainability, reposition portfolio, intensify growth, and increase profitability.

Related images

Clariant launches new CESA ProTect brand oxygen scavenger additives for polyester packaging. 
(Photo: Clariant)

 

 

Editorial enquiries

Stefanie NehlsenStefanie Nehlsen
Clariant International Ltd

+41 61 469 63 63
stefanie.nehlsen@​clariant.com

Caroline SchmidCaroline Schmid
Clariant International Ltd

+41 61 469 63 63
caroline.schmid@​clariant.com

Siria NielsenSiria Nielsen
EMG

+31 164 317 036
snielsen@​emg-marcom.com
@siriajonna

 

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