Appeal 2006-2307
Application 10/370,686
Appellant’s invention is directed to an aqueous pressure sensitive adhesive
emulsion blend, a method of preparing such an emulsion, and products
including such a blend. Claim 20 is illustrative of the claimed subject matter
and is reproduced below:
20. An aqueous based pressure sensitive adhesive emulsion blend
comprising an aqueous pressure sensitive adhesive polymer emulsion and a
high Tg polymer emulsion, said high Tg polymer having a Tg of 50 ēC to
300 ēC and a number average particle size of 80 nm to 1000 nm, said
aqueous pressure sensitive adhesive polymer emulsion having a number
average particle size of less than 500 nm.
The Examiner relies on the following prior art references as evidence
in rejecting the appealed claims:
Otsuki JP 05-2716451 Oct. 19, 1993
Rosenski US 5,319,020 Jun, 07, 1994
Brown US 5,641,567 Jun. 24, 1997
Claims 1-20 and 23 stand rejected under 35 U.S.C. § 102(b) as being
anticipated by or, in the alternative, under 35 U.S.C. § 103(a) as obvious
over JP05-271645. Claims 1-20 and 23 stand rejected under 35 U.S.C. §
103(a) as being unpatentable over JP05-271645 in view of Rosenski. Claim
21 stands rejected under 35 U.S.C. § 103(a) as being unpatentable over
JP05-271645. Claim 22 stands rejected under 35 U.S.C. § 103(a) as being
unpatentable over Otsuki JP05-271645 in view of Brown.
OPINION
We have reviewed each of Appellant’s arguments for patentability.
However, we are in agreement with the Examiner that the claimed subject
1 Our references to JP05-271645 in this Decision are to the English language
translation thereof of record.
2
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