1-butene ethylene copolymers
AssigneeBasell Polyolefine GmbH
InventorsGiampaolo Pellegatti, Stefano Spataro, Roberta Marchini, Simona Guidotti, Simona Esposito
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Abstract
A 1-butene ethylene copolymer having an ethylene derived units content ranging from 15.10% by molto 18.00% by mol having the following properties: a) distribution of molecular weight lower than 3; preferably b) hardness shore A (measured according to ISO 868) lower than 65; c) tension set lower than 30% at 100% of deformation (ISO 2285) d) no melting pointdetectable at the DSC; e) Melting enthalpy measured after 10 days of aging at room temperature comprised between 4 and 15 J/g.
Claims7
A 1-butene ethylene copolymer having an ethylene derived units content ranging from 15.10% by mol to 18.00% by mol having the following properties:
- a) distribution of molecular weight Mw/Mn lower than 3;
- preferably
- b) hardness shore A (measured according to ISO 868) lower than 65;
- c) tension set lower than 30% at 100% of deformation (ISO 2285)
- d) no melting point detectable at the DSC at the second heating scan;
- e) melting enthalpy measured after 10 days of aging at room temperature comprised between 4 and 15 J/g.
Dependencies are inferred from the claim text.