Appeal 2007-2677
Application 10/622,229
that the small particles have a median particle size between about 80 and
140 nm. Specification 7:2-5.
The preferred particle size ranges of the small particles are said to
provide image-receiving layers with particularly high gloss. Specification
7:5-6.
The large particles of the image-receiving element should have a
median particles size between about 200 and 500 nm, and it is further
preferred that the large particles have a median particle size between about
200 and 300 nm. Specification 7:27-30.
The preferred particle size ranges of the large particles are said to
provide image-receiving layers with greatest porosity. Specification 7:30-
31.
In a preferred embodiment, the weight ratio of large to small particles
is from 80:20 to 20:80, and more preferably from 65:35 to 35:65. These
ratios are preferred because they are said to provide image receiving-layers
with both high porosity and high gloss. Specification 8:21-26.
It is preferred that the image-receiving element have a porosity of
greater than about 40% as calculated by the method of Inventive Example 5.
Specification 9:7-10.
It is also preferred that the image-receiving element have a 60º gloss
of greater than 15, and more preferably greater than 25. Specification 9:13-
15.
These gloss values are said to improve the overall image quality of the
printed image. Specification 9:15-16.
3. Appellants’ claimed invention
Claim 1 is the only independent claim on appeal.
5
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