G-P screws may not be wise choices for clear materials because they tend to have dead spots behind the flights in the metering and transition sections where polymer can hang up and
degrade. Rounding the back side (non-pushing side) of the flights can eliminate the dead space.
1991b), which was one of the first organisms reported that can
degrade toluene under anaerobic (denitrifying) conditions.
Since the urethane group
degrades before the urea, it is these degradation reactions I would like to review.
Their fill does not
degrade over time, and they are the least sensitive to temperature-induced zero-shift error.
Sinclair says ECM's active ingredient initiates a similar chain of events that
degrades the entire polyolefin composition in a reasonable timeframe for products bound for landfills or likely to end up as litter.
People possess an apyrase similar to the ones in bloodsucking insects, but it normally
degrades compounds other than ADP.
Since this film is at high temperature, it
degrades in a matter of hours.
It encodes an enzyme known as RNase L, which
degrades RNA, a chemical relative of DNA.
One of these, called trifluoroacetate (TFA), is toxic to plants, and there's no evidence that it
degrades in the environment.
Syndiotactic PP is also not degraded by radiation sterilization--in fact, its properties may actually improve, whereas conventional PP
degrades (as noted in another Mitsui Toatsu patent).
The grade chosen for the tees, Novon 3001, won out over other grades because it
degrades quickly in a soil environment and can be injection molded.