ELASTOMERIC COMPOSITIONS COMPRISING RECLAIMED VULCANIZED ELASTOMER PARTICLES AND IMPROVED METHODS OF MANUFACTURE THEREOF
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United States of America Patent
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Issued Date -
Mar 27, 2014
app pub date -
Sep 24, 2013
filing date -
Sep 25, 2012
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Abstract
Methods for making elastomer compounds are described. The compounds include reclaimed vulcanized elastomer materials such as micronized rubber powders (MRP). The elastomeric compositions exhibit lower tensile strength variability. As described herein, shorter mixing times can be used to achieve the same minimum tensile strength as composition containing no reclaimed material. The elastomeric compositions may include various proportions of reclaimed vulcanized elastomer materials. A rubber compound is also described which comprises reclaimed material and which has a minimum tensile strength equal to or higher than a predetermined minimum tensile strength associated with a compound containing no reclaimed material. The rubber compound is manufactured with a reduced mixing time compared to that of the compound with no MRP.
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