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US 12,760,704 B2Granted
Extruded thermoplastic foams and uses in applications requiring strength and lightweight
AssigneeHoneywell International Inc.
InventorsHayim Abrevaya, Keith Lehuta, Susie Martins
Life of this patent
Estimating the term…
Abstract
Disclosed are extruded foam comprising an extruded thermoplastic, closed-cell foam having at least a first surface and comprising: (i) thermoplastic polymer cell walls formed by an extrusion step, with the walls being comprised of at least about 0.5% by weight of ethylene furanoate moieties and optionally one or more co-monomer moieties; (ii) blowing agent contained in at least a portion of said closed cells; and a material different than said thermoplastic, closed-cell foam attached to and/or integral with at least a portion of said first foam surface.
Claims10
A wind turbine blade comprising:
- a. a blade shell;
- and
- b. a faced foam in said blade shell, said faced foam comprising an extruded foam having a foam density of from about 125 kg/m3 to about 425 kg/m3 and comprising a thermoplastic foam comprising:
- (1) thermoplastic polymer cells comprising cell walls forming closed cells, wherein said thermoplastic polymer comprises ethylene furanoate moieties;
- and
- (2) 1234ze (E) contained in the closed cells.
3 more elements
Dependencies are inferred from the claim text.