Abstract: A process for the preparation of thermoplastic auxetic foams comprising the steps of: a) taking conventional thermoplastic foam; b) subjecting said foam to at least one process cycle wherein the foam is biaxially compressed and heated; c) optionally subjecting the foam to at least one process cycle wherein the biaxial compression is removed and the foam mechanically agitated prior to reapplying biaxial compression and heating; d) cooling said foam to a temperature below the softening temperature of said foam; and e) removing said compression and heat.

Abstract: An auxetic knitted fabric, comprising an auxetic component knitted from at least a first type of fibre, and a stabilising component knitted from at least a second type of fibre, wherein the first and second fibre types have different mechanical properties.

Abstract: A composite material includes a layer of fibres conjoined to a matrix, wherein one of the matrix and fibres has a first component which exhibits auxetic behaviour for loading along a first direction, and the other of the matrix and fibres has a second component which exhibits non-auxetic behaviour for loading along the first direction.

Abstract: A multi-layer adhesive interface, comprising at least one film layer and at least one adhesive layer, each adhesive layer being adhered to at least one film layer, the film layers being impermeable to the adhesive of the adhesive layers, wherein at least one of the adhesive or film layers has a negative Poisson's ratio. The Poisson's ratio of the layers may vary through the interface and may vary from positive at one surface to negative at the other surface.

Abstract: A composite material comprises a layer of fibres conjoined to a matrix, where one of the matrix and fibres comprises a first component which exhibits auxetic behaviour for loading along a first direction, and the other of the matrix and fibres comprises a second component which exhibits non-auxetic behaviour for loading along the first direction.

Abstract: A composite material comprises a layer of fibres conjoined to a matrix, where one of the matrix and fibres comprises a first component which exhibits auxetic behaviour for loading along a first direction, and the other of the matrix and fibres comprises a second component which exhibits non-auxetic behaviour for loading along the first direction.

Abstract: A process for the preparation of thermoplastic auxetic foams comprising the steps of: a) taking conventional thermoplastic foam; b) subjecting said foam to at least one process cycle wherein the foam is biaxially compressed and heated; c) optionally subjecting the foam to at least one process cycle wherein the biaxial compression is removed and the foam mechanically agitated prior to reapplying biaxial compression and heating; d) cooling said foam to a temperature below the softening temperature of said foam; and e) removing said compression and heat.

Abstract: A garment is provided that has a support region and a foam pad at the region. The foam pads has at least one auxetic foam layer. A garment is also provided that includes at least one auxetic foam layer.

Abstract: A garment is provided that has a support region and a foam pad at the region. The foam pads has at least one auxetic foam layer. A garment is also provided that includes at least one auxetic foam layer.

Abstract: A garment is provided that has a support region and a foam pad at the region. The foam pads has at least one auxetic foam layer. A garment is also provided that includes at least one auxetic foam layer.

Abstract: A fabric is provided that includes a knit structure having a geometric shape imparting an auxetic property to the fabric due to rotation of one or more portions of the knit structure. In some aspects, the fabric includes a knit structure having a triangular lattice shape that imparts an auxetic property to the fabric.

Abstract: A method of separating at least part of one or more components from a mixture of components includes exposing the mixture to a porous barrier, the barrier being formed of a material structure having, or behaving in the manner associated with, a negative Poisson ratio. Through the use of such materials, improved reparations, improved de-fouling of barriers and a variety of other beneficial properties can be obtained.

Abstract: A method of separating at least part of one or more components from a mixture of components includes exposing the mixture to a porous barrier, the barrier being formed of a material structure having, or behaving in the manner associated with, a negative Poisson ratio. Through the use of such materials, improved reparations, improved de-fouling of barriers and a variety of other beneficial properties can be obtained.

Abstract: A method of separating at least part of one or more components from a mixture of components includes exposing the mixture to a porous barrier, the barrier being formed of a material structure having, or behaving in the manner associated with, a negative Poisson ratio. Through the use of such materials, improved reparations, improved de-fouling of barriers and a variety of other beneficial properties can be obtained.