Propylene-based terpolymers for films
AssigneeBasell Poliolefine Italia S.r.l.
InventorsRoberta Marzolla, Monica Galvan, Tiziana Caputa
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Abstract
A terpolymer containing propylene, ethylene and an alpha olefins of formula CH2═CHZ wherein Z is an hydrocarbon group having from 2 to 10 carbon atoms wherein: (i) the content of ethylene derived units ranges from 0.5 wt % to 5.0 wt %; (ii) the content of alpha olefin derived units ranges from 1.0 wt % to 5.0 wt %; (iii) the area of the DSC curve after the peak of the melting point (Tm) represents more than 22%; of the total area of the DSC curve; (iv) the polydispersity index (PI) ranges from 2.0 to 7.0.
Claims12
An article comprising a terpolymer, wherein the terpolymer comprises propylene, ethylene and an alpha olefin of formula CH2═CHZ wherein Z is an hydrocarbon group having from 2 to 10 carbon atoms, wherein in said terpolymer:
- (i) the content of ethylene derived units ranges from 0.5 wt % to 5.0 wt %;
- (ii) the content of alpha olefin derived units ranges from 1.0 wt % to 5.0 wt %;
- (iii) the area of the DSC curve after the peak of the melting point (Tm) represents more than 22% of the total area of the DSC curve;
- (iv) the polydispersity index (PI) ranges from 2.0 to 7.0.
The article of claim 10, wherein the film is a biaxially oriented film (BOPP).
Dependencies are inferred from the claim text.