Appeal 2007-1024
Application 10/231,144
11) Tomiyama identifies desirable binders as including PVDF, PTFE,
polyacrylic acid, polyacrylic acid NA as well as acrylonitrile copolymer
binders. (Id.).
12) Tomiyama explicitly identifies two types of acrylonitrile copolymer
binders: 1) acrylonitrile-butadiene copolymer, and 2) acrylic ester-
acrylonitrile copolymer. (Id.).
13) Both of the described acrylonitrile copolymers fall within the scope of
Applicant’s preferred Binder B as they are polymers having acrylonitrile
units and -(CH2)n- portions wherein 6 ≤ n.
14) Tomiyama “especially” mentions PTFE and PVDF binders and states
that “[e]specially as these resin, a fluororesin is desirable.” (Tomiyama at ¶
0036).
15) Tomiyama states that conductive agents may be used in the electrodes
and identifies carbon black particles having a size ranging from 0.02 to 0.5
microns as most desirable. (Id. ¶ 0035).
16) Tomiyama Example 1 describes the formation of a positive electrode
with acetylene black having a mean diameter of 0.1 microns. (Id. ¶ 0062).
17) Tomiyama exemplifies a positive electrode formed with acetylene
black, PVDF and an acrylonitrile copolymer. (Id. ¶ 0070).
7
Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Next
Last modified: September 9, 2013