# US 2022/0033596 A1 · Propylene terpolymer

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- Number: US 2022/0033596 A1
- Document ID: US20220033596A1
- Status: Published application
- Kind: A1
- Application number: 17/275,939
- Filed: 2019-09-04
- Published: 2022-02-03
- Earliest claimed: 2018-09-20
- Assignees: Basell Poliolefine Italia S.r.l.
- Applicants: Basell Poliolefine Italia S.R.L.
- Inventors: PAOLA MASSARI; CLAUDIO CAVALIERI; CAROLINE CATHELIN; DAVIDE TARTARI; MARCO CIARAFONI; ROBERTO PANTALEONI
- Web page: https://patentgrep.com/patent/US20220033596A1

## CPC

- C08J 5/18: Manufacture of films or sheets
- C08L 23/14: Copolymers of propene (C08L23/16 takes precedence)
- C08F 2/001: {Multistage polymerisation processes characterised by a change in reactor conditions without deactivating the intermediate polymer (C08F295/00, C08F297/00 take precedence)}
- C08F 210/02: Ethene
- C08F 210/06: Propene
- C08F 210/08: Butenes
- C08F 210/16: Copolymers of ethene with alpha-alkenes, e.g. EP rubbers
- C08J 2323/14: Copolymers of propene (C08J2323/16 takes precedence)
- C08J 2423/14: Copolymers of propene (C08J2423/16 takes precedence)
- C08L 23/16: Ethylene-propylene or ethylene-propylene-diene copolymers
- C08L 23/20: having four to nine carbon atoms
- C08L 2203/162: sealable films
- C08L 2205/025: containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
- C08L 2314/02: Ziegler natta catalyst
- C08J: WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H (working, e.g. shaping, of plastics B29)
- C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06)
- C08F: MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS

## Abstract

A terpolymer compositions made from or containing: A) From 80 wt % to 97 wt %; of a first propylene, ethylene, 1-butene terpolymer having: i) the content of ethylene derived units ranging from 0.5 wt % to 3.2 wt %; ii) the content of 1-butene derived units ranging from 7.2 wt % to 14.8 wt %; and B) From 20 wt % to 3 wt %; of a second propylene, ethylene, 1-butene terpolymer having: i) the content of ethylene derived units ranging from 0.5 wt % to 3.2 wt %; ii) the content of 1-butene derived units ranging from 14.4 wt % to 26.5 wt %; and the terpolymer composition having the melt flow rate, MFR, measured according to ISO 1133 at 230° C. with a load of 2.16 kg, ranging from 3.0 g/10 min to 20.0 g/10 min; the sum of the amounts of A) and B) being 100 wt %.

## Claims

### Claim 1

A terpolymer composition comprising:
A) From 80 wt % to 97 wt %; of a first propylene, ethylene, 1-butene terpolymer having:
i) the content of ethylene derived units ranging from 0.5 wt % to 3.2 wt %, based upon the total weight of the first terpolymer;
ii) the content of 1-butene derived units ranging from 7.2 wt % to 14.8 wt % based upon the total weight of the first terpolymer;
iii) the xylene soluble fraction at 25° C. ranging from 7.2 wt % to 13.4 wt %, based upon the total weight of the first terpolymer;
iv) the melting point determined by differential scanning calorimetry (DSC), according to ISO 11357-3, with a heating rate of 20° C./minute ranging from 123° C. to 138° C.;
v) the C13 NMR sequences EEE ranging from 0.16 mol % to 0.40 mol %; and
vi) the melt flow rate, MFR, measured according to ISO 1133 at 230° C. with a load of 2.16 kg, ranging from 1.0 g/10 min to 20.0 g/10 min; and
B) From 20 wt % to 3 wt %; of a second propylene, ethylene, 1-butene terpolymer having:
i) the content of ethylene derived units ranging from 0.5 wt % to 3.2 wt %, based upon the total weight of the second terpolymer;
ii) the content of 1-butene derived units ranging from 14.4 wt % to 26.5 wt % based upon the total weight of the second terpolymer; and
iii) the xylene soluble fraction at 25° C. ranging from 38.2 wt % to 60.2 wt % based upon the total weight of the second terpolymer;
wherein the content of 1-butene derived units of component A) is lower than the amount of the content of 1-butene derived units of component B); and
the terpolymer composition having -the melt flow rate, MFR, measured according to ISO 1133 at 230° C. with a load of 2.16 kg, ranging from 3.0 g/10 min to 20.0 g/10 min;
the sum of the amounts of A) and B) being 100 wt %.

### Claim 2 (depends on 1)

The terpolymer composition according to claim 1 comprising from 83 wt % to 95 wt % of component A) and from 17 wt % to 5 wt % of component B).

### Claim 3 (depends on 1)

The terpolymer composition according to claim 1, wherein in component A) the xylene soluble fraction at 25° C. ranges from 8.3 wt % to 13.2 wt %, based upon the total weight of the first terpolymer.

### Claim 4 (depends on 1)

The terpolymer composition according to claim 1, wherein in component A) the melting point determined by differential scanning calorimetry (DSC), according to ISO 11357-3, with a heating rate of 20° C./minute ranges from 127° C. to 134° C.

### Claim 5 (depends on 1)

The terpolymer composition according to claim 1, wherein in component A) the C13 NMR sequences EEE ranges from from 0.18 mol % to 0.35 mol %.

### Claim 6 (depends on 1)

The terpolymer composition according to claim 1, wherein in component A) the content of ethylene derived units ranges from 0.7 wt % to 2.8 wt %, based upon the total weight of the first terpolymer.

### Claim 7 (depends on 1)

The terpolymer composition according to claim 1, wherein in component A) the content of 1-butene derived units ranges from 8.3 wt % to 13.2 wt %, based upon the total weight of the first terpolymer.

### Claim 8 (depends on 1)

The terpolymer composition according to claim 1, wherein in component B) the content of ethylene derived units ranges from 0.7 wt % to 2.8 wt %, based upon the total weight of the second terpolymer.

### Claim 9 (depends on 1)

The terpolymer composition according to claim 1, wherein in component B) the content of 1-butene derived units ranges from 16.6 wt % to 23.3 wt %, based upon the total weight of the second terpolymer.

### Claim 10 (depends on 1)

The terpolymer composition according to claim 1, having the melt flow rate, MFR, measured according to ISO 1133 at 230° C. with a load of 2.16 kg, ranging from 4.0 g/10 min to 13.2 g/10 min.

### Claim 11 (depends on 1)

The terpolymer composition according to claim 1, wherein in component A) the melt flow rate, MFR, measured according to ISO 1133 at 230° C. with a load of 2.16 kg, ranges from 3.0 g/10 min to 13.0 g/10 min.

### Claim 12 (depends on 1)

The terpolymer composition according to claim 1, wherein in component A) the content of ethylene derived units ranges from 0.9 wt % to 2.2 wt %, based upon the total weight of the first terpolymer.

### Claim 13 (depends on 1)

The terpolymer composition according to claim 1, wherein in component A) the content of 1-butene derived units ranges from 9.5 wt % to 12.2 wt %, based upon the total weight of the first terpolymer.

### Claim 14 (depends on 1)

A film comprising the terpolymer composition of claim 1.

### Claim 15 (depends on 14)

The film according to claim 14 being a BOPP film.