the smooth extrudates, which represent batches of the same compound with
Carr has synthesized a compound with
roughly seven times the cholesterol-lowering potency of the ester alone.
Extrudate appearance can also be improved by straining the compound with
a gear extruder or "gear pump" (ref.
Use of SFR-100 resin enables molders to achieve superior flame retardance in a compound with
very high filler loading (in excess of 60%) that is still melt processable.
Figure 8 shows the SPC three sigma charts for S' of the RPA viscoelastic properties for the developmental replacement compound with
optimal elastic torque.
The RPA can directly measure the viscous heating of a rubber compound with
good repeatability (ref.
Engineering a subtread compound with
aramid pulp reinforcement is a route to lower rolling resistance, better cornering performance, reduced abrasion and a greater resistance to punctures (ref.
Assuming that the compound has been properly formulated, a quality extruded product can be maintained by removing the small amount of undispersed particles that might be included from the compound with
the use of a screen pack in the extruder.
Because this additional carbon black displaces a comparable volume of the more expensive polymer, the compound with
Sterling carbon black shows a lower "out-the-door" cost for the finished product than the compounds using conventional grades.
The test formulations compounded were based on an EVA elastomer containing 18% vinyl acetate (VA) and an EVM compound with
50% VA content (table 3).
For example, a natural rubber compound with
a 70 phr loading of the new product displays a crack growth rate of 1.
Figure 6 shows that, as the loadings of carbon black and oil are increastaticd, the maximum S' (MH) decreastatics; however, the viscous torque S" at MH increastatics greatly indicating a more hysteretic compound with
The compound specific gravity (using a theoretical compound with