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Energy-absorbent Material and Method of Making

Battelle Memorial Institute

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Technology Marketing Summary

This invention relates to materials that absorb and dissipate energy and/or selectively allow energy to be transmitted – in particular, polymeric materials that include polyol(s) such as polyethers, polyesters, polyether/esters, acrylics, plus other formulary components such as hydroxyl-terminated polybutadienes, polyisocyanates, silicone, RTV (room temperature vulcanizing) silicone, and  suitable catalysts. Included are such polymeric materials that are resilient and resist compression and compression set while exhibiting energy absorbing properties. Optionally, additives may be functionally or cosmetically added.

Description

Included in the concept of energy absorption is the ability to absorb mechanical vibration, shock and impulse such as with engine mounts and other shock absorbing devices, as well as absorb acoustical energy. It has been found that a polyol, polybutadiene, and isocyanate, and a silicone may be combined to produce material with improved energy-absorbent properties.

Benefits

• Reducing the energy in the wave as it traverses the material in any several possible waveforms
• Provides high internal energy loss for mechanical waves propagating through the material
• Less burdensome to the environment

Applications and Industries

Hydrophone mounts and covers sub-marine-related coatings, composite propellers, sonar domes, acoustic panels, sound-reduction mats/blankets, composite hatches/covers, composite fairings/baffles, remote undersea ops vehicles, sound deadening and other sound-reduction devices.

Patents and Patent Applications
ID Number
Title and Abstract
Primary Lab
Date
Patent 7,456,245
Patent
7,456,245
Energy-absorbent material and method of making
This invention relates to materials which absorb and dissipate energy and/or selectively allow energy to be transmitted, methods of making same, and articles comprising such materials. In particular, polymeric materials which include polyol(s) such as, but not limited to, polyethers, polyesters, polyether/esters, acrylics, and combinations thereof, plus other formulary components such as hydroxyl-terminated polybutadienes, polyisocyanates, silicone, preferably RTV (room temperature vulcanizing) silicone, and, preferably, suitable catalysts, preferably organometallic catalysts such as DBTDL (dibutyl tin dilaurate). Included are such polymeric materials which are resilient and which resist compression and compression set while exhibiting energy absorbing properties. Optionally, additives may be functionally or cosmetically added.
11/25/2008
Issued
Technology Status
Development StageAvailabilityPublishedLast Updated
PrototypeAvailable06/08/201206/08/2012

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