Appeal No. 2001-2345 Page 4
Application 08/898,627
Appellants also explain:
By using the phase shift, * , between the stress and strain wave forms the
complex modulus may be split into two components - the storage and loss
moduli are a measure of the energy stored and the energy lost
respectively, in an oscillatory cycle. the relative magnitude of the loss and
storage moduli (G"/G' = Tan * ) provides information on the elasticity of
the gel. The lower the value of Tan * the greater the degree of gelation.
Specification, page 3, last paragraph.
'185 describes biologically active spray compositions which include
agrochemicals. Page 1, lines 11-18. The agrochemical is mixed with a polymer which
is swellable in water. Page 2, lines 27-36. In a preferred embodiment of '185, a
substantially water insoluble, water-swellable, crosslinked polymer which may be a high
molecular weight homopolymer or copolymer of acrylic acid is used. Page 2, lines 81-
91. It is also preferred that crosslinked monovalent cationic salts of acrylic acid are
used. Page 2, lines 92-104. The swelled gel of '185 is formed "by merely adding the
polymer to the aqueous dispersion with agitation." Page 3, lines 25-31.
Chen is relied upon by the examiner for its teaching of containerization of
aqueous gels which comprise agrochemicals using water-soluble bags. Paper No. 19,
page 2. The examiner concludes, "It would have been obvious to one of ordinary skill
in the art to containerize the composition of '185 in water-soluble bags to achieve the
beneficial effect of safeguarding the environment in view of Chen." Id.
The examiner amplifies his reasoning in the Answer stating "[t]he alkali
polyacrylates of '185 are made by adding base to CARBOPOL" (Answer, page 3), and
"[a]pplicants add base to crosslinked polyacrylic acid to achieve a gel.
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