B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
154/123, 20/17
B32B 11/04 (2006.01) B32B 5/18 (2006.01) B32B 33/00 (2006.01) E04B 1/86 (2006.01) E04C 2/26 (2006.01) E04F 15/18 (2006.01)
Patent
CA 2039235
IN THE C A N A D I A N PATENT & TRADEMARK OFFICE PATENT APPLICATION entitled: Complex sound-insulating material and flooring in the names of: Jean-Jacques POURTAU Thierry, Eric POURTAU assignee : TOMECANIC ABSTRACT OF THE DISCLOSURE This invention relates to a complex sound-insula- ting material comprising a first lower sub-assembly, itself comprising at least one layer of a bituminous product, and a second upper layer which covers said first sub-assembly. The first sub-assembly comprises a first upper layer, a first intermediate layer and a first lower layer, whilst a) each of the first upper and lower layers is made of oxidized bitumen reinforced with first fibers and has a surface mass of between 500 and 1000 g/m2; b) the first intermediate layer is made of an organic binding agent, such as a bitumen, and by second fibers which are embedded in said binding agent and are in a non-woven form; and c) the second upper layer is made of an elastic foam. One application of the invention is the production of a sound-insulated tiled flooring.
Pourtau Jean-Jacques
Pourtau Thierry E.
Pourtau Jean-Jacques
Pourtau Thierry E.
Robic
Tomecanic
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