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US 2024/0279408 A1Published application
Superior c2c3c4 terpolymer based cast film and c2c3c4 terpolymer
AssigneeBorealis AG
InventorsJingbo Wang, Markus Gahleitner, Klaus Bernreitner, Pauli Leskinen
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Abstract
Cast film made from terpolymers, and terpolymers containing units derived from propylene, ethylene and 1-butene.
Claims8
-5. (canceled)
Cast film made from an ethylene-propylene-1-butene terpolymer, wherein the ethylene-propylene-1-butene terpolymer includes
- a) units derived from ethylene in an amount of 0.2 to 1.2 mol-% with respect the total terpolymer;
- and
- b) units derived from propylene in an amount of 93.6 to 95.3 mol-% with respect the total terpolymer;
- and
- c) units derived from 1-butene in an amount of 4.5 to 5.2 mol-% with respect the total terpolymer,
- d) wherein the units derived from ethylene, propylene and 1-butene add up to 100 mol-% and
- e) a total amount of units derived from ethylene and 1-butene of 4.8 to 6.5 mol-%, and
- f) 2.1 regioinversions in an amount of 0.36 to 0.55 mol-% as determined by 13C-NMR analysis (as described in the experimental part);
- and
- g) a melt flow rate MFR2 (230° C./2.16 kg) measured according to ISO 1133 in the range from 10 to 14.5 g/10 min, and
- h) a melting temperature Tm measured by differential scanning calorimetry (DSC) following the equation
- Tm
- ≥
- [
- 150
- -
- 1.6
- *
- (
- defects
- )
- -
- 0.12
- *
- (
- defects
- )
- 2
- ]
-
- °
-
- C
- ,
- wherein defects denote the sum of units derived from ethylene, units derived from 1-butene and 2.1 regioinversions, all values in mol-%,
- wherein the film has a sealing initiation temperature (SIT) (as determined by a method described in the experimental part) below 112° C., particularly from 105 to 111° C.
33 more elements
(canceled)
An ethylene-propylene-1-butene terpolymer having
- a) units derived from ethylene in an amount of 0.2 to 1.2 mol-% with respect the total terpolymer;
- and
- b) units derived from propylene in an amount of 93.6 to 95.3 mol-% with respect the total terpolymer;
- and
- c) units derived from 1-butene in an amount of 4.5 to 5.2 mol-% with respect the total terpolymer,
- d) wherein the units derived from ethylene, propylene and 1-butene add up to 100 mol-% and
- e) a total amount of units derived from ethylene and 1-butene of 4.8 to 6.5 mol-%, and
- f) 2.1 regioinversions in an amount of 0.36 to 0.55 mol-% as determined by 13C-NMR analysis (as described in the experimental part);
- and
- g) a melt flow rate MFR2 (230° C./2.16 kg) measured according to ISO 1133 in the range from 10 to 14.5 g/10 min, and
- h) a melting temperature Tm measured by differential scanning calorimetry (DSC) following the equation
- Tm
- ≥
- [
- 150
- -
- 1.6
- *
- (
- defects
- )
- -
- 0.12
- *
- (
- defects
- )
- 2
- ]
-
- °
-
- C
- ,
- wherein ‘defects’ denote the sum of units derived from ethylene, units derived from 1-butene and 2.1 regioinversions, all values in mol-%.
32 more elements
Dependencies are inferred from the claim text.