Appeal No. 96-2341
Application 08/389,554
claims 1, 3, 4 and 6-10, which are all of the claims remaining
in the application.
THE INVENTION
Appellants’ claimed invention is directed toward a shear
thinnable, thickened composition containing recited amounts of
a water-miscible organic liquid, water, hydrated alumina, and
a water-soluble agent which induces flocculation or gelling of
the alumina. Appellants indicate that the uses of the
composition include providing sufficient viscosity to paint
removers that they adhere to vertical surfaces, and providing
sufficient viscosity to aircraft deicing compositions that
they adhere to the inclined surfaces of wings until being
removed by wind shear (specification, page 1, lines 8-19).
Claim 1 is illustrative and reads as follows:
1. A shear thinnable, thickened composition comprising:
from about 30 to about 85% by weight of a water-miscible,
organic liquid:
from about 0.5 to about 25% by weight of a hydrated
alumina, calculated as A1 O , said alumina being of a type that
2 3
will function as a thixotrope in said composition;
from about 15 to about 70% by weight water; and
2
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