Method of manufacturing moulded articles
AssigneeWoodio Oy
InventorsPetro Lahtinen, Tuomo Nikkinen, Timo Humalainen
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AssigneeWoodio Oy
InventorsPetro Lahtinen, Tuomo Nikkinen, Timo Humalainen
Estimating the term…
A method of producing a moulded article comprising a thermoset polymer and particles of porous natural materials, such as wood materials, and uses thereof. The composite material has a continuous matrix of a hardened thermoset polymer and, distributed within the matrix, and the particles are at least partially encased by the thermoset polymer. The method comprises the steps of providing a mould with two opposite pressing surfaces, said pressing surfaces defining a space between them; feeding particles of porous natural materials into the space between the pressing surfaces; advancing the surfaces towards each other to compress the particles in said space; feeding unhardened thermoset resin in liquid form into the mould so as to fill at least said space between pressing surfaces while keeping the particles compressed between the pressing surfaces; and curing the thermoset resin in the mould to provide a moulded composite article.
A method of producing a moulded composite article comprising:
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The method according to any of the preceding claims, wherein the particles of the porous natural material are selected from the group consisting of particles, fibers, chips and granules of wood, annual or perennial plants, and materials obtained from wood, annual plants or perennial plants by mechanical, chemical or thermal processing.
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A composite moulded article comprising a thermoset polymer and particles of a porous natural material distributed throughout the thermoset polymer, wherein the particles of the porous natural material have a density smaller than that of the polymer, and wherein the particles of the natural material are at least partially encased by the thermoset polymer.
Dependencies are inferred from the claim text.