Aerated materials
AssigneeOnbone Oy
InventorAntti Pärssinen
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Abstract
Aerated composite materials in the shape of a three-dimensional objects and methods of producing the same. The composite comprises a thermoplastic biodegradable polyester mixed with reinforcing agents selected from particles of woody materials having a smallest dimension greater than 0.1 mm. The composite material further comprises regions of elasticity formed by incisions which upon stretching will yield open pores. The incised regions will also provide for flexibility or semi-rigidity in at least one dimension. The material can be used in comfortable splints and circumferential casts.
Claims32
A composite material in the shape of a three-dimensional object, comprising a first component formed by a polymer and a second component formed by a reinforcing material, wherein
- said first component comprises a thermoplastic polymer selected from the group of biodegradable polyesters and mixtures thereof, and
- said second component comprises particles of a woody material, having a smallest dimension greater than 0.1 mm,
- said composite material further comprising
- regions of elasticity formed by mechanical processing of the material to provide for objects having properties of flexibility or semi-rigidity in at least one dimension, and
- said material being moldable and workable at temperatures below 70° C.
A method of producing a composite material in the shape of a three-dimensional object, comprising combining
- a first component which is formed by a thermoplastic polymer selected from the group of biodegradable polyesters and mixtures thereof with
- a second component which is formed by particles of a woody material, having a smallest dimension greater than 0.1 mm to produce a composite material,
- shaping the material into a three dimensional object and, at an optional point of time,
- introducing by mechanical processing of the object into the composite material regions of elasticity to provide the objects with properties of flexibility or semi-rigidity in at least one dimension
- wherein the composite material comprises a first component formed by a polymer and a second component formed by a reinforcing material, wherein
- said first component comprises a thermoplastic polymer selected from the group of biodegradable polyesters and mixtures thereof, and
- said second component comprises particles of a woody material, having a smallest dimension greater than 0.1 mm,
- said composite material further comprising
- regions of elasticity formed by mechanical processing of the material to provide for objects having properties of flexibility or semi-rigidity in at least one dimension, and
- said material being moldable and workable at temperature below 70° C.
Splints and circumferential casts, comprising a composite material in the shape of a three-dimensional object, the composite material comprising a first component formed by a polymer and a second component formed by a reinforcing material, wherein
- said first component comprises a thermoplastic polymer selected from the group of biodegradable polyesters and mixtures thereof, and
- said second component comprises particles of a woody material, having a smallest dimension greater than 0.1 mm,
- said composite material further comprising
- regions of elasticity formed by mechanical processing of the material to provide for objects having properties of flexibility or semi-rigidity in at least one dimension, and
- said material being moldable and workable at temperature below 70° C.
Dependencies are inferred from the claim text.