Appeal No. 2002-0173
Serial No. 09/273,040
concrete. Appellants state that the accelerator in Ceska merely
improves the copolymerization and not the final curing of the
polymer concrete. On pages 4 through 5 of the answer, the
examiner responds to appellants' other arguments presented in the
brief, but does not specifically respond to the aforementioned
argument regarding the function of the catalyst disclosed in
Ceska. Hence, we provide a response below.
We agree with appellants' interpretation of the function of
the catalyst set forth in Ceska. Ceska discloses that one aspect
of the invention is a composition for preparing a polymer
concrete comprising a substantial non aqueous slurry of (1) an
aggregate material and (2) a amount of a monomer binder system
wherein the binder comprises (a) a liquid comonomer component,
(b) a macromonomer component and (c) a polymerization catalyst.
See column 2, lines 30 through 41 of Ceska. The catalyst system
(c) is described in column 7 beginning at line 36 of Ceska.
Here, Ceska discloses that for a copolymerization of
macromonomers and comonomers, free radical catalyst systems are
commonly employed. Preferably, the free radical catalyst
comprises an oil-soluble organic azo or peroxide primary catalyst
(initiator), often in combination with a co-catalyst, also known
as an accelerator or promoter. Ceska discloses that useful
accelerators are reducing agents such as tertiary amines,
absorbic acid including isomers, reducing sugars, or transition
metal organic compounds.
Bivens is concerned with a grouting composition comprising
(a) a first component containing a resin formulation comprising
an unsaturated polymerizable polyester resin mixed with a
3
Page: Previous 1 2 3 4 5 6 7 Next
Last modified: November 3, 2007