Particulate expandable polystyrene (EPS), process for making particulate expandable polystyrene, as well as a particular application of polystyrene foam material
AssigneeSynbra Technology B.V.
InventorJan Noordegraaf
Life of this patent
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Abstract
The present invention relates to a particulate expandable polystyrene (EPS) that can be processed into a foam with a fine cell structure and a low density and contains a material for increasing the thermal insulation value, to improve the thermal insulation value hereof. The present invention also relates to a method for the production of a particulate expandable polystyrene (EPS) and to a foam material based on polystyrene.
Claims16
A particulate expandable polystyrene that can be processed into a foam with a fine cell structure and a low density and contains a material for increasing the thermal insulation value, to improve the thermal insulation value hereof, comprising polystyrene polymer particles which contain a material for increasing the thermal insulation value chosen from the group comprising zeolites and silicates.
A method for the production of a particulate expandable polystyrene wherein styrene polymer, a blowing agent, and a material for increasing the thermal insulation value are jointly extruded in an extruder, cooled and reduced to particles, and wherein the material for increasing the thermal insulation value is chosen from zeolites and silicates.
(canceled)
Dependencies are inferred from the claim text.