Patent AT-E39980-T1: [Translated] DRIVE BELT.

A power transmission belt wherein at least a portion thereof is formed as a composite of 1 to 100 parts by weight of whiskers (25) distributed in 100 parts by weight of rubber. The composite may form the compression section of the belt. The composite may be utilized as impregnating rubber for a fabric cover portion of the belt. The whiskers preferably have a diameter in the range of approximate 0.1 micron to 1.0 micron, and a length of approximately 10 microns to 500 microns. In the illustrated embodiment, the whiskers are acicular single crystal whiskers.