OREVAC® PP 18750

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Description

Maleic anhydride grafted polypropylene tie resin used in extrusion coating and extrusion lamination technologies. Designed to develop adhesion onto substrates like aluminum foil, paper or PP films and in coextrusion with resins like PP and PA.

Excellent processing properties, particularly regarding drawability, neck-in and melt stability.

The special formulation of OREVAC® 18750 allows to design aluminum lids for PP or PP coated cups and containers with controlled opening forces.

Processing

OREVAC® 18750 is not corrosive and is readily processed with standard polyolefin equipment.
Conditions typically used in extrusion of polypropylene resins are suitable.
Typical extrusion temperature settings could be:

Zone 1 : 200-220°C
Zone 2 : 220-250°C
Zone 3 : 250-275°C
Zone 4 : 275°C
Fittings-Channels : 275°C
Die : 275°C

Final profile and settings depend on the line and the multi-layer structure being run. Although
it is not necessary for short runs, it is recommended to dry OREVAC® 18750 pellets prior to
extrusion in order to reduce die build-up during long runs. Typical drying conditions would be
from 2 to 4 hours at 80-90°C under dry air.

Storage, Handling & Safety

OREVAC® 18750 should be stored in dry conditions protected from UV-light. Improper storage conditions may cause degradation and have consequences on physical properties of the
product.
Safety data sheet as well as information on handling and storage of the OREVAC® 18750 is available upon request to your SK Functional Polymer representative.

Shelf Life

Three years from the date of delivery, in unopened packaging. For any use above this limit, please refer to our technical services.

Applications

PackagingFlexible PackagingHigh Barrier PackagingExtrusion Coating LaminationCircular Economy

Additional information

Base Polymer

Homo PP

Reactivity

++

Melt index (g/10 min) (230°C–2.16 kg)

35

Melting point (°C)

160

Vicat (°C)

121

Density (g/cm3)

0.920