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US 2015/0087770 A1Published application
Propylene based terpolymers
AssigneeBasell Poliolefine Italia S.r.l.
InventorsRoberta Marzolla, Monica Galvan, Tiziana Caputo
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Abstract
A propylene, ethylene, 1-butene terpolymer containing from 0.5 wt % to 2.2 wt % of ethylene derived units and from 6.0 wt % to 20.0 wt % of 1 butene derived units; wherein: i) the ratio C2 wt %/C4 wt % ranges from 0.09 to 0.06; wherein C2 wt % is the weight per cent of ethylene derived units and C4 wt % is the weight per cent of 1-butene derived units; ii) the Melt flow rate ranges from 0.4 to 54 g/10 min; iii) the xylene soluble fraction at 25° C. is lower than 15.0 wt % the minimum value being 5.0 wt %.
Claims8
A terpolymer comprising:
- (A) from 0.5 to 2.2 wt. %, based upon the total weight of the terpolymer, of ethylene derived units;
- (B) from 6.0 to 20.0 wt. %, based upon the total weight of the terpolymer, of 1-butene derived units;
- and
- (C) from 77.8 to 93.5 wt. %, based upon the total weight of the terpolymer, of propylene derived units,
- wherein:
- i) the weight ratio of ethylene derived units to 1-butene derived units ranges from 0.12 to 0.06;
- ii) the terpolymer has a melt flow rate from 0.4 to 54 g/10 min;
- and
- iii) the terpolymer contains 5 to lower than 15 wt. %, based upon the total weight of the terpolymer, of a xylene soluble fraction at 25° C.
6 more elements
Dependencies are inferred from the claim text.