Microcellular thermoplastic elastomeric structures
First Claim
Patent Images
1. An article comprising a microcellular thermoplastic elastomeric polymeric structure including an average cell size of less than 100 μ
- m and a compression set of less than about 30%, the thermoplastic elastomeric polymeric structure comprising a thermoplastic phase, having a first softening temperature, intermingled with an elastomeric phase, having a second softening temperature different than the first softening temperature.
3 Assignments
0 Petitions
Accused Products
Abstract
Microcellular thermoplastic elastomeric polymeric structures are provided. The articles have an average cell size of less than 100 μm and a compression set ranging from less than about 30% to less than about 5%, and a rebound value of at least 50%. The articles may be formed from a thermoplastic elastomeric olefin, preferably metallocene-catalyzed polyethylene. The density of the articles ranges from less than 0.5 gm/cm3 to less than 0.3 gm/cm3.
111 Citations
36 Claims
-
1. An article comprising a microcellular thermoplastic elastomeric polymeric structure including an average cell size of less than 100 μ
- m and a compression set of less than about 30%, the thermoplastic elastomeric polymeric structure comprising a thermoplastic phase, having a first softening temperature, intermingled with an elastomeric phase, having a second softening temperature different than the first softening temperature.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 36)
-
23. An article comprising a microcellular thermoplastic elastomeric polymeric structure including a compression set of less than about 30%, a density of less than 0.5 gm/cm3, a rebound value of at least 50%, an average cell size of less than 100 μ
- m, and a maximum cell size of less than 125 μ
m, the thermoplastic elastomeric polymeric structure comprising a thermoplastic phase, having a first softening temperature, intermingled with an elastomeric phase, having a second softening temperature different than the first softening temperature. - View Dependent Claims (24, 25, 26)
- m, and a maximum cell size of less than 125 μ
-
27. An article comprising a crosslinked microcellular thermoplastic elastomeric polymeric structure including a compression set of less than about 2%, a density of less than 0.5 gm/cm3, a rebound value of at least 50%, an average cell size of less than 100 μ
- m, and a maximum cell size of less than 125 μ
m, the thermoplastic elastomeric polymeric structure comprising a thermoplastic phase, having a first softening temperature, intermingled with an elastomeric phase, having a second softening temperature different than the first softening temperature. - View Dependent Claims (28, 29, 30)
- m, and a maximum cell size of less than 125 μ
-
31. An article comprising a shoe sole constructed for attachment to a shoe upper, formed of thermoplastic elastomeric polymeric microcellular material comprising a thermoplastic phase, having a first softening temperature, intermingled with an elastomeric phase, having a second softening temperature different than the first softening temperature.
-
32. An article comprising a gasket formed of thermoplastic elastomeric polymeric microcellular material comprising a thermoplastic phase, having a first softening temperature, intermingled with an elastomeric phase, having a second softening temperature different than the first softening temperature.
-
33. A method comprising:
-
providing a precursor of a crosslinked microcellular thermoplastic elastomeric polymeric structure comprising a thermoplastic phase, having a first softening temperature, intermingled with an elastomeric phase, having a second softening temperature different than the first softening temperature; and
crosslinking the precursor to form a crosslinked microcellular thermoplastic elastomeric polymeric structure. - View Dependent Claims (34, 35)
-
Specification