C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 7/00 (2006.01) B60K 5/12 (2006.01) C08K 5/00 (2006.01) C08K 5/18 (2006.01) C08K 5/378 (2006.01) F16F 1/36 (2006.01)
Patent
CA 2150880
Resilient elastomeric mounts and in particular, natural rubber engine mounts, which maintain good mechanical and dynamic properties at temperatures in excess of 250°F, are provided. The natural rubber engine mounts of the present invention are thus ideal for use in underhood applications which require durability at high temperatures, i.e. from about 250°F to about 280°F. The mounts generally comprise rubber produced by an efficient vulcanization (EV) system, which employs a curing system having a sulfur accelerator and sulfur donor. In a preferred composition, the accelerator is a sulfant amide and thiazole present at a level of about 1.2 phr to about 1.8 phr, and the sulfur donor is tetramethyl thuiram disulfide present at a level of about 0.1 phr to about 0.4 phr.
Nozik Zina
Cooper-Standard Automotive Inc.
Macrae & Co.
Standard Products Company The
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