Appeal No. 2007-1487
Application 09/562,632
col. 8, ll. 24-32, and col. 9, ll. 16-43). Morikawa teaches a coupling agent
improves the workability and bonding strength of the coating, with silane
coupling agents, used in 0.05 to 10.0 parts by weight per 100 parts, that is,
0.05 to 10 parts by weight, preferred (id. col. 8, l. 54, to col. 9, l. 2).
Preferred silane coupling agents include, inter alia, “epoxy-silane
compounds such as β-(3,4-epoxycyclohexyl)ethyltrimethoxysilane,
γ-glycidoxypropyl-trimethoxylsilane,” wherein “[p]articularly preferable are
epoxysilane compounds for improving the adhesiveness” (id. col. 9,
ll. 3-13). The polyurethane compositions can be applied by such methods as
“wet lamination” and “nonsolvent lamination” (id. col. 9, ll. 44-46).
Morikawa discloses adhesive formulations in Table 4 which include
the polyurethane resin and polyisocyanate curing agent, and additionally
contain in adhesives AD-A and AD-C, 0.5 parts coupling agent A-186:
β-(3,4-epoxycyclohexyl)ethyltrimethoxysilane, and in adhesives AD-E,
AD-F, and AD-G, 0.5 parts coupling agent A-187: γ-glycidoxypropyl-
trimethoxylsilane (Morikawa cols. 13-15, and col. 15, ll. 18-21). Each of the
adhesives AD-A through AD-H is prepared with a different polyurethane
resin PU-A through PU-H (id. cols. 9-13 and Tables 1 and 3). Each of the
adhesives AD-A through AD-H is coated on PET film which is then
laminated to aluminum foil, and each is further coated on the aluminum foil
which is then laminated to PP film (id. col. 15, ll. 25-41). The laminates
were subject to a T-peel test with the results set forth in Table 6 (id. col. 15,
ll. 25-41). Morikawa discloses that the results in Tables 1, 3, and 6
demonstrate that “bonding strength” is “good” (id. col. 6, ll. 31-41). We
agree with the Examiner’s finding that this evidence provides a comparison
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