Propylene/1-hexene copolymer composition with low sealing temperature
AssigneeBorealis AG
InventorsJuha Paavilainen, Petar Doshev, Kristin Reichelt
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Abstract
Propylene copolymer composition (P) comprising (a) a propylene copolymer (A) having a comonomer content of at least 1.0 wt.-%, the comomers are C5 to C12 a-olefins, and (b) a propylene copolymer (B) having a comonomer content of 4.0 to 20.0 wt.-%, the comomers are C5 to C12 a-olefins, wherein further (i) the comonomer content in the propylene copolymer (A) is lower compared to the comonomer content in the propylene copolymer (B), (ii) the propylene copolymer composition (P) has a comonomer content of 2.0 to 10.0 wt.-%, the comomers are C5 to C12 a-olefins, (iii) the weight ratio of the propylene copolymer (A) to the propylene copolymer (B) is the range of 30/70 to 80/20.
Claims15
Propylene copolymer composition (P) comprising:
- (a) a propylene copolymer (A) having a comonomer content of at least 1.0 wt %, the comonomers are C5 to C12 α-olefins, and
- (b) a propylene copolymer (B) having a comonomer content of 3.5 to 6.5 wt %, the comonomers are C5 to C12 α-olefins,
- wherein further:
- (i) the comonomer content in the propylene copolymer (A) is lower compared to the comonomer content in the propylene copolymer (B),
- (ii) the propylene copolymer composition (P) has a comonomer content of 2.0 to 10.0 wt. %, the comonomers are C5 to C12 α-olefins,
- (iii) the weight ratio of the propylene copolymer (A) to the propylene copolymer (B) is in the range of 20/80 to 80/20, and
- (iv) the propylene copolymer composition (P) has crystallization temperature (Tc) measured according to ISO 11357-3 in the range of 88 to 110° C.
Dependencies are inferred from the claim text.