Appeal No. 1997-0218 Application No. 08/182,757 silane is further disposed on either side of the polyvinyl chloride film and acts as an adhesion promoter between the film and the glass sheets. Beckmann discloses a laminated safety glass comprising a plasticized polyvinyl chloride film bonded on each side to a glass plate with the aid of an organofunctional silane. Preferred silanes include "alkylene alkoxysilanes containing amino and/or imino or epoxy groups, one or both of the hydrogen atoms of the amino group being replaced by an amino or hydroxyalkyl of polyamino moiety" (col. 5, lines 38-43). However, in Example 5, for purposes of comparison, Beckmann discloses a laminated glass wherein the plasticized polyvinyl chloride film is bonded on each side to a glass plate using a gamma mercaptopropyltrimethoxysilane (see Table III; see also Example 14). Therefore, the teachings of Beckmann alone satisfy the limitations of claim 42. See In re Gurley, 27 F.3d 551, 553, 31 USPQ2d 1130, 1132 (Fed. Cir. 1994) ("A known or obvious composition does not become patentable simply because it has been described as somewhat inferior to some other product for the same use."). 5Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 NextLast modified: November 3, 2007