Appeal No. 1996-2004
Application No. 08/225,889
Appealed claims 27-29, 31, 38, 39, and 43-45 stand
rejected under 35 U.S.C. § 103 over Pletcher in view of
Mueller-Cunradi and Schrader. Appealed claims 30, 32, 40-42
and 47-49 stand similarly rejected as above further in view of
Fagan. Appealed claim 46 stands rejected under 35 U.S.C. §
103 as unpatentable over Pletcher in view of Mueller-Cunradi,
Schrader, and Borisof.
We cannot sustain the stated rejections.
The subject matter on appeal is directed to a method for
adhering two surfaces involving the friction rubbing of a
certain thermoplastic, pressure sensitive adhesive mass on a
first surface followed by applying pressure to a second
surface placed in contact with the adhesive on the first
surface to form a bond between the two surfaces. The adhesive
used in appellants’ process “consists essentially of” a
mixture of 1) about 40% to 75% by weight of polyisobutylene
having a Flory molecular weight of from about 40,000 to 70,000
and 2) about 25% to 60% by weight of a wax having a melting
point of at least 165 F and a needle penetration value of fromo
about 1 to 15. An adhesion promoter resin is an optional
component of appellants’ adhesive composition.
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