Patent ID: 7973106

Claim:
A sound damping material for use in a sound damping structure having at least one rigid layer, comprising: an acrylate-based polymer matrix for adhering to the rigid layer(s) of the sound damping structure and being the reaction product of at least one acrylate-based monomer having a molecular weight of about 100 to 400 (Mw), said acrylate-based polymer matrix being at least partially cross-linked; one or more curing agents dispersed in said acrylate-based polymer matrix, and at least one material selected from the group consisting of a precipitated phase and a viscous phase, wherein: said precipitated phase is a rubber-like material that provides elasticity to said sound damping material and is dispersed in said acrylate-based polymer matrix, said precipitated phase being at least partially amorphous, and; said viscous phase is a fluidic or semi-fluidic material that provides viscosity to said sound damping material and is dispersed in said acrylate-based polymer matrix, said viscous phase also being at least partially amorphous.