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US 2012/0238704 A1Published application
Polyolefin compositions having improved sealability
AssigneeBasell Poliolefine Italia S.r.l.
InventorsGiampaolo Pellegatti, Michele Grazzi, Stefano Spataro
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Abstract
Polyolefin composition with improved sealability comprising from 70 to 95% of one or more copolymers of propylene with one or more comonomers selected from ethylene, a C4-C8 α-olefin and combinations thereof, where the comonomer, or comonomers, content in (A) is from 5 to 25%, and from 5 to 30% by weight of butene-1 (co)polymer (B) having a flexural modulus of 60 MPa or less.
Claims29
Polyolefin compositions comprising, all percentages being by weight:
- A) from 70 to 95% of at least one copolymer of propylene with at least one comonomer selected from ethylene, a C4-C8 α-olefin and combinations thereof, where the comonomer content in (A) is from 5 to 25%;
- B) from 5 to 30% of a butene-1 (co)polymer having:
- a content of butene-1 derived units of at least 75 wt % and
- a flexural modulus of at most 60 MPa.
1 more element
Dependencies are inferred from the claim text.