Interference No. 102,922
Interference No. 103,088
The junior party's record indicates the following: In
October 1986, inventor Dumas, an employee of Hercules at the
Wilmington, Delaware facility had an idea of treating clay,
calcium carbonate and other fillers with Hercon® emulsions to
render them easy to size (DX 3). On October 30, 1986, Dumas
sent a work request to the attention of Techentin at Hercules'
Kalamazoo, Michigan facility asking that clay be dispersed in
0.35% Hercon® 40 and that handsheets employing 10 and 20%
filler level be made and evaluated. (DX 7 page 1) Dumas,
himself, identified Hercon® 40 as a AKD cationic emulsion
containing alkyl ketene dimer known under the name of Aquapel®
364 and Resin 2399 in a 1:1.5 ratio; and identified Resin 2399
as a cationic polymer resin used in Hercon® emulsions made by
condensing
diethylenetriamine(DETA) and dicyandiamide(DICY) and later
cross-
linked with epichloride to yield the cationic polymer resin
(DR-12-14, and 17-18). DXs 4 and 17-19 confirm Dumas'
testimony with regard to the content of Hercon® 40. Techentin
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