Sound insulating board

Details Sound insulating board Sound insulating board

2011-08-16

2011-08-16

Tarazano, D. Lawrence (Department: 1786)

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Alkali metal

C428S323000, C428S403000, C428S514000

Reexamination Certificate

active

07998442

ABSTRACT:
The invention relates to a sound-insulating board, in particular a footfall insulating board for laminate floors or similar applications. The sound-insulating board is distinguished by a continuous transition of its density from the one large-area side to the other large-area side of the board and comprises a mixture of unglued wood fibers, a binder and/or supporting fibers and a mixed plastic, such as arises from the dual system during the recovery of plastic parts.

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