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Molecules of the Modifying Agent that represent symmetrical silicones are reacting with molecular chains of PET. Firstly the Modifying Agent reacts with the most active, low molecular weight pieces of polymer chain.
We can compare this process to re-synthesis of PET, but as the base material we use not monomers, but PET oligomers. Silicon based modifier plays the role of the catalyst in the process.
This mechanism performs a double effect. On one hand toxic, low molecular weight particles are integrating back into PET chain and on the other hand, there is a significant growth of the average molecular weight of the polymer. The result is the physic-mechanical properties of the resin are restored.
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| October, 2006 |
The first presentation at the global conference of the Modification Technology will be given by PTP Group, at NOVA-PACK EUROPE 2006, The 21st International Conference on PET Containers in Food & Beverages. aaaIt will take place in Prague, Czech Republic on 2-3 October 2006. This will be a late addition to the half-day session on Recycling of PET Containers. |
| September, 2006 |
PTP Group obtains a complete approval from Food and Drug Administration for PET-M material as food contact substance, produced by means of the patented Modification Technology. |
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