Method and apparatus for producing solid foam, product and use
AssigneeWoamy Oy
InventorsMikko ALAVA, Juha KOIVISTO, Antti PUISTO
Life of this patent
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Abstract
The application relates to a method and apparatus for producing a solid foam continuously. A homogeneous suspension is formed from a raw material in which the suspension comprises a solidifying agent, and a foam mixture which comprises bubbles is formed by mixing air bubbles into the suspension. The foam mixture is injected via at least one nozzle to form a foam pattern and the foam pattern is laid on a moving surface and the foam mixture of the foam pattern is solidified in order to form a solid foam such that the bubbles of the foam mixture shrink in off-length directions to form the shaped bubbles. Further, the application relates to the product and the use of the method.
Claims18
A method for producing a solid foam continuously, wherein the method comprises
- forming a homogeneous suspension from a raw material in which the suspension comprises a solidifying agent,
- forming a foam mixture which comprises bubbles by mixing air bubbles into the suspension, and
- injecting the foam mixture via at least one nozzle to form a foam pattern and laying the foam pattern on a moving surface and solidifying the foam mixture of the foam pattern in order to form a solid foam such that the bubbles of the foam mixture shrink in off-length directions to form the shaped bubbles.
An apparatus for producing a solid foam continuously, wherein the apparatus comprises
- at least one mixer for forming a homogeneous suspension from a raw material in which the suspension comprises a solidifying agent,
- at least one foamer for forming a foam mixture which comprises bubbles by mixing air bubbles into the suspension, and
- at least one nozzle for injecting the foam mixture to form a foam pattern, a moving surface on which the foam pattern is laid and at least one solidifying device for solidifying the foam mixture of the foam pattern to form a solid foam such that the bubbles of the foam mixture shrink in off-length directions to form the shaped bubbles.
Dependencies are inferred from the claim text.