Appeal 2006-1581
Application 10/2006-1581
1 to 50 parts by weight of a monomer mixture (B) comprising 0 to
49% by weight of methyl methacrylate,
51 to 100% by weight of at least one monomer selected from the
group consisting of a methacrylate ester except methyl methacrylate and an
acrylate ester, and
0 to 20% by weight of a vinyl monomer copolymerizable therewith, in
the presence of a latex of a (co)polymer having specific viscosity of at least
ηsp 0.7,
which is obtained by polymerizing in emulsion 99 to 50 parts by
weight of a monomer mixture (A) comprising
51 to 100% by weight of methyl methacrylate,
0 to 49% by weight of at least one monomer selected from the group
consisting of a methacrylate ester except methyl methacrylate and an
acrylate ester, and
0 to 20% by weight of a vinyl monomer copolymerizable therewith,
wherein the total amount of (A) and (B) is 100 parts by weight,
and wherein specific viscosity is measured at 30ºC using Ubberlohde's
Viscometer on 0.1 g of polymer dissolved in 100 mL chloroform.
The Examiner relies upon the following references as evidence of
unpatentability:
Kanegafuchi 1 GB 1 378 434 Dec. 27, 1974
Tuzuki US 4,179,481 Dec. 18, 1979
Matsuba EPA 0 392 465 A1 Oct. 17, 1990
Matsuba US 5,093,420 Mar. 3, 1992
1 We use the first listed name from the title of the corporation as shown in
col. 1, ll. 1-3 of this patent.
2
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