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Low Resilience Damping Pad Disclosure Number: IPCOM000065919D
Original Publication Date: 1985-Dec-01
Included in the Prior Art Database: 2005-Feb-19

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Barton, WH Williamson, JA [+details]


The resilience of a rubber damping pad may be lowered by adding SRF carbon black to the rubber. A rubber damping pad was needed for shock isolation. A rubber was found which has stable resilience over the operational temperature range, but the resilience value was 25% too high. By adding SRF carbon black to the formula, the resilience was decreased to the desired 20% (maximum). In addition, by adding ester-type oils, the stiffness of the rubber was kept acceptably low, without increasing the resilience. The correct proportions by weight were found to be as follows: Vamac B-124 rubber (DuPont)---------124.0 SRF Carbon Black--------------------130.0 Dioctyl Sebacate Oil-----------------35.0 Santicizer 409 Oil (Monsanto)--------55.0