Appeal No. 2005-1247
Application No. 09/963,423 Page 2
BACKGROUND
Appellants' invention relates to a solid, pulverulent,
adduct having particle diameters of from about 1 to 1000 microns.
An understanding of the invention can be derived from a reading
of exemplary claim 2, which is reproduced below.
2. A solid, pulverulent, water-dispersible,
blocked polyisocyanate adduct having particle diameters
of from about 1 to 1000 µm, obtained by reacting, in a
water-free, organic auxiliary solvent,
at least one isocyanate component selected from
the group consisting of aliphatic, cycloaliphatic and
aromatic isocyanates, wherein said isocyanate has an
average, NCO functionally of 2-4
with
at least one hydrophilicizing component containing
at least one group which is reactive toward the NCO
groups, in an amount such that there is on average not
more than one NCO-reactive function for each isocyanate
molecule;
blocking with at least one blocking agent from 95
to 100% to the NCO group not reacting with the
hydrophilicizing component;
optionally neutralizing with at least one
neutralizing agent; and
removing the organic auxiliary solvent.
The prior art references of record relied upon by the
examiner in rejecting the appealed claims are:
Reiff et al. (Reiff ‘370) 5,508,370 Apr. 16, 1996
Reiff et al. (Reiff ‘482) 5,607,482 Mar. 04, 1997
Reiff et al. (Reiff ‘737) 5,693,737 Dec. 02, 1997
Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 Next
Last modified: November 3, 2007