Sound and thermal insulating construction element
OwnerKlaus Lestiinventor
Life of this patent
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Abstract
Carpet scraps are comminuted into small pieces having a maximum length of between 2 and 10 mm and are mixed with one component of a two-part synthetic-resin foam. The comminuted mixture containing the carpet scraps are then extruded in a thick band on top of a lower cover sheet and the other element of the synthetic-resin foam is sprayed over the band. Thereupon an upper cover sheet is applied to the band and the thus sandwiched band is passed between a pair of pressing belts as the components foam and harden.
Claims10
A method of making a construction element comprising the steps of:
- comminuting carpet which consists of a rubbery backing and fibers anchored thereto on one side into small pieces,
- mixing said pieces with a binder to form a pressable mass, and
- pressing said mass and hardening said binder to form a rigid insulating construction element.
A construction element comprising a pressed rigid mass of a hardened binder and comminuted carpet pieces which consists of a rubbery backing and fibers anchored thereto on one side, said pieces being embedded in said binder and held together thereby.
Dependencies are inferred from the claim text.