Patent
Vibration damped sandwich systems having interlayers of vinyl acetate-ethylene-n-butylacrylate copolymers
TLDR
Vibration damped sandwich systems having an improved damping effect within a broad range of temperature and consisting of hard plates and a vibration damping interlayer, said interlayer comprising a copolymer of ethylene, vinyl acetate, ethyl-acrylate and acrylic and/or methacrylic acid as discussed by the authors.Abstract:
Vibration damped sandwich systems having an improved damping effect within a broad range of temperature and consisting of hard plates and a vibration damping interlayer, said interlayer comprising a copolymer of ethylene, vinyl acetate, ethyl-acrylate and acrylic and/or methacrylic acid.read more
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Sound absorbing article and method of making same
Benson Vernon C,Glenn E. Freeman +1 more
TL;DR: A sound dampening glazing as discussed by the authors includes a pair of glass sheets having facilities therebetween, in cross section and moving from one glass sheet to the other, the facilities include a polyvinyl butyral sheet, an intermediate sheet having a surface harder than the surface of the interlayer to smooth the inter layer surface.
Patent
Sound absorbing/shielding and electric wave absorbing plastic sheet containing encapsulated magnetic fluid, and sound absorbing/shielding and electric wave absorbing plastic panel
TL;DR: In this paper, a light-weight sound absorbing and insulating plastic sheet material which exhibits an excellent sound absorbing effect even in the low and medium-pitched sound range was provided.
Patent
A damping treatment for pipes and bodies.
TL;DR: An anti-vibration treatment for body whose temperature can rise to exceed 150 ° C, uses a number of dampers protruding in cantilever-type sandwich, which consist a layer of viscoelastic material (3) sandwiched between two rigid metal plates (4, 5) which are fixed to a support (2) which can itself be attached to the body.
Patent
Method for inhibiting transmission of airborne noise
TL;DR: In this article, it was found that transmission of airborne noise can be inhibited by interposing in the air space between the noise source and the location to be insulated a thin, dense, normally self supporting film or sheet composed essentially of certain ethylene-vinyl acetate copolymers and from about 60 to about 90 percent by weight of inorganic filler materials.
Patent
Vibration damper having extended temperature range and low temperature shock resistance
TL;DR: In this paper, small amounts of rubbery polymer particles (especially core-shell polymers) are incorporated in the viscoelastic copolymer to alleviate the high temperature and brittleness of the copolymers.