Energy absorbing material
AssigneeRheon Labs Ltd
InventorDaniel James Plant
Life of this patent
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Abstract
A composition comprising a liquid-castable polymer system combined with solid particles of a shear thickening additive; an energy absorbing material formed from the composition; and an article comprising the energy absorbing material on a substrate, for example, a glove (1) including the material of the present disclosure as energy absorbing elements (2a, 2b, 2c, 3a, 3b, 3c, 3d, 3e) incorporated onto the surface (4) of a textile substrate to provide protection over the metacarpophalangeal and proximal interphalangeal joints.
Claims25
A composition for use in forming an energy absorbing material, the composition comprising:
- a liquid-castable polymer system, which is configured to solidify to form a material comprising an elastomeric polymer matrix, the material comprising the elastomeric polymer matrix having a Shore D hardness in a range of 30 to 60;
- and
- a shear thickening additive, the shear thickening additive comprising particles having a D10 of at least 0.05 mm and a D90 of 2 mm or less and a Shore D hardness of at least 30,
- wherein the shear thickening additive is a blend comprising a thermoplastic elastomer and a silicone polymer.
An energy absorbing material comprising:
- a solid elastomeric polymer and a shear thickening additive, wherein the shear thickening additive is in a form of solid particles having a D10 of at least 0.05 mm and a D90 of 2 mm or less, wherein the material has a Shore D hardness of 30 to 60, wherein the shear thickening additive is a blend comprising a thermoplastic elastomer and a silicone polymer.
A method of preparing a material, comprising placing a composition in a mold and solidifying the composition to form the material, wherein the composition comprises:
- an elastomeric polymer, and
- a shear thickening additive in a form of solid particles having a D10 of at least 0.05 mm and a D90 of 2 mm or less,
- wherein the material has a Shore D hardness of 30 to 60,
- wherein the shear thickening additive is a blend comprising a thermoplastic elastomer and a silicone polymer.
An article, comprising:
- a substrate;
- and
- an energy absorbing material comprising:
- a solid elastomeric polymer and a shear thickening additive, wherein the shear thickening additive is in a form of solid particles having a D10 of at least 0.05 mm and a D90 of 2 mm or less, wherein the material has a Shore D hardness of 30 to 60,
- wherein the shear thickening additive is a blend comprising a thermoplastic elastomer and a silicone polymer.
Dependencies are inferred from the claim text.