Appeal No. 2007-1487
Application 09/562,632
the aqueous, hydroxy-functional, acid-group containing resin dispersion
(Specification, e.g., 6:23-22).
We agree with the Examiner’s findings that Kubitza would have
disclosed to one of ordinary skill in this art a two-component polyurethane
coating composition comprising an aqueous, hydroxy-functional, acid-group
containing resin dispersion and a polyisocyanate component, each having
the properties specified. Kubitza prepares the composition by producing the
resin in an organic solvent, such as ethyl acetate, converting the resin to an
aqueous dispersion, and emulsifying the polyisocyanate in the aqueous
dispersion of the resin. See Answer 3-4; Kubitza, e.g., Abstract, column 1,
line 51, to column 3, line 37; column 4, line 9, to column 5, line 35; column
6, lines 42-48; and Examples. Kubitza does not disclose or suggest the
addition of an epoxy functional silane component to the coating composition
(Kubitza, e.g., col. 6, ll. 53-58). Kubitza discloses the aqueous coating
compositions can be used “where solvent-containing, solventless or other
aqueous paint and coating systems” are used, including “the painting and
coating of metal surfaces . . . and the painting and sealing of various plastic
surfaces,” and are “suitable for the surface bonding of various materials”
which are the same or different (id. col. 6, l. 59, to col. 7, l. 6).
We find Morikawa would have disclosed to one of ordinary skill in
this art an adhesive for lamination applicable to substrates, including, inter
alia, plastic films, metal foils, and metallized films, which can be a
polyurethane containing composition of a polyurethane resin having
carboxyl groups and a polyisocyanate curing agent in ethyl acetate
(Morikawa, e.g., col. 1, ll. 67-8, col. 2, l. 15, to col. 3, l. 10, col. 7, ll. 9-18,
7
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