Appeal No. 1997-2344 Application No. 08/273,550 of obviousness for using a nucleating package composed of a high melt flow polypropylene and stearamide. As observed above, polypropylene and stearamide have been individually used by prior art workers as nucleating agents for butene-1 polymers. It is well settled that it is prima facie obvious to combine two components or two compositions each of which is taught by the prior art to be useful for the same purpose to form a third composition which is to be used for the very same purpose. In re Susi, 440 F.2d 442, 445, 169 USPQ 423, 426 (CCPA 1971). Applying this principle of law to the disclosures in Hwo, it would have been prima facie obvious to form a nucleating package composed of both polypropylene and stearamide because each material has been disclosed in the prior art as individually useful for the very same purpose of promoting the crystallization of thermoplastic butene-1 polymer compositions. The idea of combining them flows logically from their having been individually taught in the prior art. We recognize, as stressed by appellants, that the herein claimed invention is directed to a nucleating package comprising a high melt flow polypropylene having a melt flow 5Page: Previous 1 2 3 4 5 6 7 8 9 10 11 NextLast modified: November 3, 2007