Appeal No. 2006-2817 Page 3
Application No. 10/734,979
1. A method of coating a substrate to maximize capture of a compound of
Formula I from wastewater, comprising steps of:
(a) providing a thermosetting composition comprising a compound of
Formula I
an oligomer thereof, or both, wherein each R is independently selected from the
group consisting of alkyl, cycloalkyl, aryl, and akylaryl groups and the R groups
have, on average, five or more carbon atoms, with the proviso that the compound
is a solid when the R groups have, on average, fewer than six carbon atoms;
(b) spraying the thermosetting composition onto the substrate in a spray
booth where overspray of the composition containing the compound of Formula I
or the oligomer thereof or both results from the spraying,
(c) capturing the overspray with a spray booth water wash,
(d) removing spray booth water wash as waster [sic] water and
(e) removing the compound of Formula I or the oligomer thereof or both
from the waste water.
4. The method of claim 1, wherein at least one R comprises an oxygen atom.
Claim 1 has five steps: (a) providing a thermosetting composition that contains a
triisocyanate of Formula I; (b) spraying the composition on a substrate (e.g., an
automobile part) in a spray booth; (c) capturing the overspray with a water wash;
(d) removing the water wash from the spray booth; and (e) removing the Formula I
compound from it.
The Formula I compound has an R group which has “on average, five or more
carbon atoms, with the proviso that the compound is a solid when the R groups have,
on average, fewer than six carbon atoms.” The phrase “on average” is not expressly
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