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US 8,475,900 B2Granted
Container prepared from PCR HDPE resin blend
AssigneeAlbea Services
InventorRobert Daniel Miskevich
Life of this patent
Estimating the term…
Abstract
The invention relates to a container prepared from a PCR HDPE blend comprising PCR HDPE and an effective amount of an impact modifier to provide acceptable ESCR results.
Claims12
A high-content PCR HDPE container comprising:
- 40 wt % to 70 wt % by weight PCR HDPE based on total weight of the blend:
- and
- 30 wt % to 60 wt % by weight of an impact modifier based on total weight of the blend;
- wherein the PCR HDPE has a density of 0.95-0.97 g/cm3 and melt flow index of about 1.5 or less;
- wherein the impact modifier comprises at least one of:
- ULDPE having a density of 0.89-0.92 g/cm3 and a melt flow index of about 1.5 or less, and
- an elastomer having a density of 0.87 to 0.91 g/cm3 and a melt flow index of about 1.5 or less;
- and
- wherein the container has a density of 0.90-0.95 g/cm3.
6 more elements
A method of making a high-content PCR HDPE container comprising extruding or molding a composition comprising,
- 40 wt % to 70 wt % by weight PCR HDPE based on total weight of the blend:
- and
- 30 wt % to 60 wt % by weight of an impact modifier based on total weight of the blend;
- wherein the PCR HDPE has a density of 0.95-0.97 g/cm3 and melt flow index of about 1.5 or less;
- wherein the impact modifier comprises at least one of:
- ULDPE having a density of 0.89-0.92 g/cm3 and a melt flow index of about 1.5 or less, and
- an elastomer having a density of 0.87 to 0.91 g/cm3 and a melt flow index of about 1.5 or less;
- and
- wherein the container has a density of 0.90-0.95 g/cm3.
6 more elements
Dependencies are inferred from the claim text.