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Patent

Vibration damper material

TLDR
A vibration damper sheet is composed of a laminated sheet having a base stock layer 3, a resilient layer 4, an primer layer 5, an organic component barrier layer 6 and an adhesive layer 7 successively laminated in that order from one to the other side thereof as mentioned in this paper.
Abstract
A vibration damper material 1 composed of a laminated sheet having a base stock layer 3, a resilient layer 4, an primer layer 5, an organic component barrier layer 6 and an adhesive layer 7 successively laminated in that order from one to the other side thereof, and a release liner 8 stuck on the adhesive layer 7. The resilient layer 4 is constituted by a resilient material containing a vehicle consisting of a member or a mixture of two or more members selected from the group of asphalt, rubber, synthetic resins and cellulose derivatives, synthetic resin powder, and an elastic material having an elongation rate of 500% or higher. The organic component barrier layer functions to block permeation therethrough of organic components such as tar and oil components which would otherwise tend to migrate into the adhesive layer from the resilient layer. Despite a substantial reduction in thickness, the vibration damper sheet possesses satisfactory vibration damping properties, along with excellent adhesion to curved surfaces and punching machinability and sticking machinability.

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Citations
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Patent

Vibration damping composite material

TL;DR: In this paper, a new composite damping material is presented which exhibits an enhanced ability to dampen mechanical oscillations through the entrapment of highly viscous damping fluids within the pores of a porous material (such as: an expanded polymer, felt, foam, fabric, metal etc.).
PatentDOI

Sound absorbing article and method of making same

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TL;DR: In this article, a self-adhesive vibration damping tape for adhering to a substrate is provided, consisting of a synthetic rubber polymer, thermoplastic polymer, a plasticizer, and an organic filler comprised of recycled automotive paint powder.
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Multi-layer preparation in film form, consisting of hydrophilic polymers, for the rapid release of active ingredients

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TL;DR: In this article, a multi-layer preparation in film form, consisting of hydrophilic polymers for the rapid release of substances contained in the film layers into a liquid environment, is described.
References
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Energy absorbing elements comprising rigid non-elastomeric layer and visco-elastic layer with twisted fiber bundles embedded therein

TL;DR: An energy absorbing element such as a spring, shock absorber or vibration damper in the form of a laminated structure comprising at least one rigid non-elastomeric layer such as reinforced plastic material bonded to a visco-elastic layer, in which twisted fiber bundles are embedded in the viscous layer.
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TL;DR: In this article, a multilayer, multi-component thermoplastic adhesive film was used for bonding automotive interior trim foam-backed fabric to headliner shell materials with shorter headliner fabrication times and excellent deep draw performance.