SK Functional Polymer (SK-FP) launches two brand new products for the rigid gas barrier packaging applications. OREVAC® 18730, a phthalate free PP tie resin, has been designed with a rheology optimized for sheet and blow molding coextrusions. Its adhesion to EVOH and polyamides resins has been improved with the latest SK-FP technologies for tie layers. It shows outstanding bonding to EVASIN®EV3251FT, an EVOH grade with 32% ethylene content.
Those two materials are enlarging SK-FP product portfolio and allows SK Functional Polymer to complete its tie and barrier layers product range for both rigid and flexible multilayer packaging markets.
With OREVAC® 18730 and EVASIN® EV3251FT, SK-FP offers his rigid packaging customers a one-stop solution for barrier bottles, trays, and tubes. Indeed, both materials can be advantageously combined and processed together through sheet and blow molding co-extrusion. While OREVAC 18730 confers internal packaging cohesion by developing a strong adhesion against PA and EVOH, EV3251FT imparts effective gas barrier properties thanks to its low ethylene content within its composition (32%).
As OREVAC® 18730 is PP homo-polymer based, it is suitable for retort and sterilization processes.
Nowadays, food safety is a major concern for consumers. Indeed, packaging has to protect packed food against both external chemical and mechanical aggressions. Packaging has also to be inert with regard to the packed food and protects against microorganism. That’s why SK-FP has developed a phthalate free PP tie layer by selecting the right components of its composition.
Phthalate-free OREVAC® 18730 tie resin meets food industry key players’ requirement.
Typical characteristics of OREVAC®18730 and EVASASIN®EV3251FT:
| Grade | MFI (190°C, g/10 min) | Vicat T (°C) | Melting T (°C) | Density | OTR* (23°C, 0% HR) |
| 18730 | 3-4 | 137 | 162 | 0.90 | — |
| EV3251FT | 1.8 | — | 183 | 1.19 | 0.76 |
*cm3.20µm/ m3.24h.atm