Back to results
US 12,606,685 B2Granted
Extruded non-crosslinked polyethylene foam
AssigneeTotal American Services, Inc.
InventorsJayna Brown, Leonardo Cortes Rodriguez, Fengkui Li
Life of this patent
Estimating the term…
Abstract
Disclosed is an extruded non-crosslinked polyethylene foam containing a metallocene polyethylene, a density of 0.35 g/cc or less, and a closed cell content higher than 70%, methods of making the extruded non-crosslinked polyethylene foam and articles containing the extruded non-crosslinked polyethylene foam.
Claims12
A polyethylene foam consisting of:
- at least 60 wt. % of a metallocene polyethylene having a density of 0.918 g/cc to 0.930 g/cc, as measured in accordance with ASTM D792 and a melt index (MI2) of 0.2 to 5.5 g/10 min at 2.16 kg, 190° C., as measured in accordance with ASTM D1238;
- a low density polyethylene (LDPE) having a density of 0.915 g/cc to 0.925 g/cc;
- optionally a blowing agent;
- and
- optionally an additive,
- wherein the polyethylene foam:
- has a density of 0.04 to 0.35 g/cc;
- has a closed cell content of at least 85%;
- and
- is an extruded non-crosslinked polyethylene foam.
7 more elements
A polyethylene foam consisting of:
- at least 60 wt. % of a metallocene polyethylene having a density of 0.918 g/cc to 0.930 g/cc, as measured in accordance with ASTM D792 and a melt index (MI2) of 0.2 to 5.5 g/10 min at 2.16 kg, 190° C., as measured in accordance with ASTM D1238;
- an additive selected from an antioxidant, a nucleator, a processing aid, a plasticizer, or a flow modifier, or blends thereof;
- optionally a low density polyethylene (LDPE) having a density of 0.915 g/cc to 0.925 g/cc;
- and
- optionally a blowing agent,
- wherein the polyethylene foam:
- has a density of 0.04 to 0.35 g/cc;
- has a closed cell content of at least 85%;
- and
- is an extruded non-crosslinked polyethylene foam.
7 more elements
A polyethylene foam consisting of:
- at least 60 wt. % of a metallocene polyethylene having a density of 0,918 g/cc to 0.930 g/cc, as measured in accordance with ASTM D792 and a melt index (MI2) of 0.2 to 5.5 g/10 min at 2.16 kg, 190° C., as measured in accordance with ASTM D1238, wherein the metallocene polyethylene is a blend of metallocene polyethylenes;
- optionally a low density polyethylene (LDPE) having a density of 0.915 g/cc to 0.925 g/cc;
- optionally a blowing agent;
- and
- optionally an additive,
- wherein the polyethylene foam:
- has a density of 0.04 to 0.35 g/cc;
- has a closed cell content of at least 85%;
- and
- is an extruded non-crosslinked polyethylene foam.
7 more elements
Dependencies are inferred from the claim text.