Polyethylene compositions having living hinge properties
AssigneeDow Global Technologies LLC
InventorsStephanie M. Whited, Mridula Babli Kapur, Yijian Lin
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Abstract
A polyethylene composition suitable for use in a living hinge component, the composition comprising a first ethylene-based polymer component, the first ethylene-based polymer component has a density of from 0.91.5 g/cc to less than 0.940 g/cc. and a melt index, I2.16, of less than 5 g/10 min. and a second ethylene-based polymer component, wherein the composition has an overall density of from 0.945 g/cc to 0.960 g/cc and an overall melt index, I2.16, of from 5 g/10 min to 20 g/10 min.
Claims12
A polyethylene composition suitable for use in a living hinge component, the composition comprising:
- a first ethylene-based polymer component, the first ethylene-based polymer component has a density of from 0.915 g/cc to less than 0.940 g/cc, a melt index, I2.16, of less than 5 g/10 min, and an overall melt flow ratio (I21.6/I2.16) of 15 to 34;
- and
- a second ethylene-based polymer component;
- wherein the composition has an overall density of from 0.945 g/cc to 0.960 g/cc and an overall melt index, I2.16, of from 5 g/10 min to 20 g/10 min.
A living hinge component comprising a polyethylene composition, the composition comprising:
- a first ethylene-based polymer component, the first ethylene-based polymer component has a density of from 0.915 g/cc to less than 0.940 g/cc, a melt index, I2.16, of less than 5 g/10 min, and an overall melt flow ratio (I21.6/I2.16) of 15 to 34;
- and
- a second ethylene-based polymer component;
- wherein the composition has an overall density of from 0.945 g/cc to 0.960 g/cc and an overall melt index, I2.16, of from 5 g/10 min to 20 g/10 min.
Dependencies are inferred from the claim text.