Patent ID: 11885333
Assignee: ABACO DRILLING TECHNOLOGIES LLC
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  B  C | IPC B  C  F

Claim 16:
17. The rubber compound of claim 15, in which the fiber reinforcement comprises a blend of fibrillated fibers and short chop fibers in a ratio by weight, and in which:
(a) the ratio by weight of fibrillated fibers to short chop fibers in the blend is in a range of 50:1 to 3:1;
(b) the fibrillated fibers have surface areas in a range of 2 m2/g to 20 m2/g; and
(c) the short chop fibers have lengths in a range of 0.05 mm to 3.0 mm.