Appeal No. 95-2270
Application 08/005,856
"resin" and a "fluid." The resin is essentially the same as the
resin described by applicants for making their silicone pressure-
sensitive adhesive. The M units of applicants' resin correspond
to the units derived from Goodwin's R SiX units and the Q units
3
of applicants' resin correspond to the units derived from
Goodwin's (RO) Si units. Likewise, the fluid is essentially the
4
same as the fluid described by applicants for making their
pressure-sensitive adhesive. Both are organopolysiloxane fluids.
Applicants' fluid has a viscosity of about 50,000 to 3,000,000
centipoise and Goodwin's fluid has a viscosity of 200,000 to
3,000,000 centipoise. Applicants and Goodwin mix the resin and
fluid in essentially identical ratios of 0.5 to 6 weight parts
fluid per weight part of resin. In both instances, hydroxyl
groups on the resin will react with hydroxyl groups on the fluid.
On this record, Goodwin's resin alone or Goodwin's fluid alone
has not been shown to function as a "silicone pressure-sensitive
adhesive" within the meaning of claim 45.
There is no composition described in Goodwin which comprises
what applicants' refer to in claim 45 as a "silicone pressure-
sensitive adhesive" in combination with a "silicone cross-linking
agent." Accordingly, even if one were to combine the teachings
of Goodwin and Doehnert, and even if one were to assume that it
would have been obvious to use a mixture of an acrylic polymer
- 14 -
Page: Previous 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 Next
Last modified: November 3, 2007