Appeal No. 97-4294 Page 15
Application No. 08/294,155
Jackson teaches that the pulp fibers will most typically
be a wood pulp or cellulose material such as wood pulp fibers
(commonly referred to as fluff), cotton, cotton linters,
bagasse or rayon fibers. In addition, synthetic counterparts
to the foregoing materials are also considered to be within
the scope of Jackson's invention. The fibers will have
lengths in the range of about to 2 to about 10 millimeters.
Examples of wood pulp fluff include CR2054 fluffing pulp
produced by Kimberly-Clark Corporation of Neenab, Wis. and
NB416 fluffing pulp produced by Weyerhauser Corporation of
Federal Way, Washington.
Jackson discloses that the superabsorbent material is
oftentimes referred to as a "hydrogel" or "hydrocolloid".
Such
superabsorbents are well known and produced in at least three
forms including granules, fibers and flakes. Granular forms
are the most common and typically have particle diameters in
the range of about 50 to 1000 micrometers with liquid
retention capacities in the range of 10 to 40 grams per gram
of superabsorbent under a load of 0.5 pounds per square inch
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