Appeal No. 2006-0415
Application No. 10/267,200
1 solventless resins as resins having at least one active hydrogen
2 atom contained in an amino group were well known to those of
3 ordinary skill in the art, citing Marten, Tesch, and Waddill as
4 evidentiary support. (Examiner’s Answer, page 8, lines 1-8).
5 The examiner also concludes that the selection of the epoxy
6 resin and curing agent for the claimed viscosity and duration of
7 viscosity would have been obvious to one of ordinary skill in the
8 art at the time the invention was made in that De Keyser describes
9 that a solventless adhesive must have low viscosity for
10 application of the adhesive to the film. The examiner
11 additionally concludes that the selection of the epoxy resin and
12 curing agent for the claimed viscosity and duration of viscosity
13 would have been obvious to one of ordinary skill in the art at the
14 time the invention was made as it was well known in the adhesive
15 art to select the solventless epoxy adhesive in order to obtain a
16 desired low viscosity. As evidentiary support for this
17 conclusion, the examiner again relies upon Marten, Tesch, and
18 Waddill. (Examiner’s Answer, page 8, second paragraph)
19 As to the claimed duration of 20 minutes, the examiner
20 concludes that the selection of the epoxy and curing agent is
21 described by De Keyser’s teaching that adhesivity is acquired over
22 time varying from a few minutes to several hours. (Examiner’s
23 Answer, page 8, second paragraph).
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