Appeal No. 2004-0824
Application 09/879,422
Ciba-Geigy AG (EP ‘824) EP 0 719 824 A2 Jul. 3, 1996
(European patent application)
THE REJECTION
Claims 21-23 and 26-30 stand rejected under 35 U.S.C. § 103
as being unpatentable over the combined teachings of Molenaar,
EP ‘824, PCT ‘377 and GB ‘637.
OPINION
We affirm the aforementioned rejection.
The appellants state that the claims stand or fall together
(brief, page 3). We therefore limit our discussion to the sole
independent claim, i.e., claim 21. See In re Ochiai, 71 F.3d
1565, 1566 n.2, 37 USPQ2d 1127, 1129 n.2 (Fed. Cir. 1995); 37 CFR
§ 1.192(c)(7)(1997).
EP ‘824 discloses low-dust granules of plastics additives
having a particle size distribution, in accordance with ISO 3435,
of 1-10 mm and a loose bulk density preferably greater than
500 g/l (page 2, lines 35-38 and 54). The additives include
sterically hindered phenols, organic phosphites and phosphonites,
and UV absorbers, and generally are solids (page 3, lines 12, 24
and 45-49; page 24, line 58). The granules preferably are made
by extruding a melt using an extruder having a nozzle or hole
diameter preferably of 2-6 mm and having a temperature above
3
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