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ELASTO helps Swedish inventor keep things cool

Carolina Sundberg is the inventor of Frozzypack, a unique lunchbox with integrated cooling that helps to keep food cool and fresh until lunch. ELASTO developed the Thermoplastic Elastomer (TPE) which is used in the lid seal. 

The inspiration behind Frozzypack came from Sundberg’s frustration with sending away her children to school with lunches that she knew would be un-fresh before it was time to eat them. “My daughter was going to skate with the school. At 7am I packed pancakes in her lunchbox that would be eaten 5 hours later. I wanted her to put the lunchbox in a cooling-bag with an icepack, but my daughter did not want that. She had enough to carry; skates, helmet, lunchbox and drink. I tried to just put the icepack in the bag, but that did not work either. I thought - why is there no lunchbox with cooling in it?” 

With Frozzypack the food keeps fridge-cold up to seven hours at room temperature. The lunchbox lid contains a non-toxic, cool-keeping gel that after ten hours in the freezer guarantees fresh food until lunch and later. 

ELASTO developed a TPE which needs to form a tight seal for the lid. The Dryflex TPE is food approved with a Normpack certificate verifying food contact status according to the Normpack norm which includes the EU Commission regulation 10/2011 on plastic materials and articles intended to come into contact with food. The material is BPA free as well as being dishwasher and freezer friendly. Frozzypacks are available in a range of vibrant colours, so it was important that the material was easy to colour. ELASTO worked with moulder, Bonaj AB, to ensure the material was easy to process and gives an excellent bond to polypropylene in overmoulding process.



The HEXPOL TPE Family brings together the ELASTO businesses in Sweden, UK and China and Müller Kunststoffe in Germany. We are at the forefront in the development and manufacture of custom formulated thermoplastic elastomers (TPE) and complimentary compounds.

Our family delivers a trusted combination of material know-how, R&D, production capability and comprehensive technical services. Alongside European and Asian production and product development facilities, as part of the HEXPOL group of companies, we share an extensive global footprint covering EU, Asia and NAFTA, enabling us to support our customers worldwide.

A comprehensive product portfolio covering TPS, TPO, TPV, TPU, soft PVC, cork compounds and masterbatch is led by global brands Dryflex®, Mediprene®, Lifoflex®, EPSeal®, Lifolit®, Lifocork®, Lifobatch® and Lifoprene®. We support OEMs, moulders and designers at all stages of product development in the medical, electronic, automotive, caps & closures, construction and consumer markets.

HEXPOL TPE is part of the compounding division of HEXPOL, one of the world’s leading polymer groups. www.hexpolcompounding.com

Mediprene®, Dryflex®, EPSeal® , Lifoprene®, Lifoflex®, Lifocork®, Lifolit® and Lifobatch® are registered trademarks property of the Hexpol group of companies.

For further information please contact:
Jill Bradford Marketing & PR Manager, HEXPOL TPE
tel +44 161 654 2369 | jill.bradford@elasto.co.uk

About Frozzypack:
Frozzypack is made in Sweden by food-approved polypropylene. The volume is 0.9 litre, dimensions 19.8 x 13.2 x 8 cm and the lunchbox can be used in dishwasher and can be warmed in a microwave (not the lid in the microwave). The weight is 425 gram. www.frozzypack.se

Frozzypack is a registered trademark, design and patent protected.