VIBRATION ABSORBING PASTE Russian patent published in 2011 - IPC C09D131/04 

FIELD: chemistry.

SUBSTANCE: vibration-absorbing paste contains an aqueous polyvinylacetate epoxy dispersion containing 50-57 wt % dry substance and modified with 10-30 wt % diane or aminophenol epoxy resin, nepheline antipyrene, alkylbenzylpyridinium chloride, hardener in form of polyethylenepolyamine or diethylenetriamine and filler - bauxite, characterised by weight ratio of basic components Al₂O₃, SiO₂, TiO₂ equal to (81-85):(10-14):(3.0-3.5) respectively, particle size of 63 mcm or less, specific surface area of (2.6-3.3) m²/g and crystallinity of 91% or higher.

EFFECT: high level of absorption of mechanical energy, high coefficient of mechanical loss with stable vibroacoustic and accompanying characteristics in time.

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