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serious effort at recycling" because the end product from both
machines was not completely devolatized and required further
processing. It was also Grossman's opinion that an individual
who seriously wanted to recycle would not purchase either of
these machines.
Grossman's opinion regarding the Sentinel EPS recycler was
based on his personal examination of a Sentinel EPS recycler, as
well as the descriptions of such recyclers as set forth in the
writings of other professionals. Grossman did not, however,
observe the Sentinel EPS recycler in actual operation.
Finally, Grossman reported on the relationship between the
plastics industry and the petrochemical industry. Grossman noted
that although the development of the petrochemical industry is a
contributing factor in the growth of the plastics industry, the
two industries have a "remarkable degree of independence".
Grossman observed that the "oil crisis" in 1973 triggered "dire"
predictions about the future of plastics that had not been
fulfilled in 1981. Grossman stated that the cost of a plastic
product depends, in large part, on technology and the price of
alternative materials. Grossman's studies concluded that a 300-
percent increase in oil prices results in a 30- to 40-percent
increase in the cost of plastic.
Grossman did not specifically value the Sentinel EPS
recycler. However, as previously stated, Grossman concluded that
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