Patent ID: 6346567
Filing Date: 2002-02-12
Classification: C08K

Abstract:
A resilient elastomeric mount comprising natural rubber produced by an efficient vulcanization system having a curing system comprising an accelerator component at a level of about 1.2 phr to about 1.8 phr and a sulfur donor component at a level of about 0.1 phr to about 0.4 phr, wherein the natural rubber further comprises antidegradants including an antioxidant comprising a blend of p-phenylene diamine in combination with zinc salt derivatives of mercaptobenzimidazole, wherein said natural rubber has a majority of monosulfidic crosslinks and wherein the mount has stable dynamic properties after exposure to a temperature of 250Â° F. for 70 hours, when tested using the MTS 830 elastomer test system.