Appeal No. 1998-0346
Application No. 08/718,653
hydride composite wherein first and second mixtures of particular
ingredients are combined to form a sol and metal hydride
particles capable of absorbing and desorbing hydrogen made of a
La-Ni-Al alloy are mixed with the sol, whereupon the resulting
mixture is gelled and then dried to form an aerogel having the
particles uniformly dispersed therein. This appealed subject
matter is adequately illustrated by independent claim 32 which
reads as follows:
32. A sol-gel method for preparing a metal hydride
composite, said method comprising the steps of:
mixing a first alcohol and water to form a first mixture;
adjusting the pH of said first mixture;
mixing a second alcohol and an organometal to form a second
mixture;
mixing said first and second mixtures to form a sol;
mixing particles of a metal hydride with said sol to form a
third mixture, said particles being capable of absorbing and
desorbing hydrogen, said metal hydride particles being made of a
La-Ni-Al alloy;
gelling said third mixture to form a gel; and
drying said gel to form an aerogel having said particles
uniformly dispersed therein.
The references set forth below are relied upon by the
examiner in the obviousness-type double patenting rejection and
the section 103 rejection before us on this appeal:
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