Circular foam for cushions and matrasses, cushion and matrass provided therewith, and method for manufacturing such foam
AssigneeFoamplant B.V.
InventorsMartin TIETEMA, Martijn BELJAARS, Vincent VAN ASSEN, Wilfred ROO
Life of this patent
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Abstract
A circular foam for cushions and mattresses, cushions and mattresses provided therewith, and method for manufacturing such foam. The circular foam for cushions and mattresses includes a circular polymer and a nucleating agent, where the circular polymer is a polyester and/or an aromatic polymer, the circular foam includes an open cell structure, and a fatigue of at most 15% as determined according to ISO 1856:2018.
Claims24
A circular foam for cushions and mattresses, comprising a circular polymer and a nucleating agent, wherein the circular polymer is a polyester and/or an aromatic polymer, wherein the circular foam comprise an open cell structure and a fatigue of at most 15% as determined according to ISO 1856:2018.
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Method for producing circular foam, comprising the steps of:
- providing circular foam and/or circular polymer to an extruder;
- heating the circular foam and/or circular polymer forming a mixture;
- providing a physical blowing agent to the mixture;
- and
- substantially completely extruding of the mixture to form a circular foam substrate, comprising a circular polymer and a nucleating agent, wherein the circular polymer is a polyester and/or an aromatic polymer, and wherein the circular foam comprises an open cell structure and a fatigue of at most 15% as determined according to ISO 1856:2018;
- wherein the circular foam of the step of providing circular foam and/or circular polymer to an extruder comprises said circular foam.
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Dependencies are inferred from the claim text.