Application of Rudolph S. Bley

ALMOND, Judge.

Rudolph S. Bley appeals from a decision of the Board of Appeals affirming the examiner’s rejection of all of the claims in appellant’s application 1 for a process, of spinning viscose rayon yarn. Claims. 7, 8, 9, 10 and 12, which are directed to-a process of producing high tenacity regenerated cellulose by extruding unripened viscose containing a spinning modifier into a spin bath containing aluminum sulfate, were rejected as unpatentableover the prior art.

In claims 7, 8 and 9 the unripened viscose is characterized by its salt point and in claims 10 and 12 by its degree of…