Appeal No. 2003-1684
Application No. 09/508,080
(claims 17-22 and 34-41), a method of surface treatment of glass
(claims 23-29), a treated substrate (claims 30 and 31), an
article comprising the treated substrate (claim 32), and an
equipment for “transports” comprising the article (claim 33).
According to the appellants (specification, page 3, line 13 to
page 4, line 22), conventional surface treatment compositions
suffer from various drawbacks (e.g., uneven application,
unsatisfactory adhesiveness to a substrate, and “unenduring
antifouling property”), which “are attributed to inappropriately
selected partial hydrolysis conditions which lead to a high
proportion of molecules with low- or high-molecular weights in
the resulting partial hydrolysate and a composition having large
acid and water contents.” The claimed invention, by contrast,
is described as being “excellent in water repellency,
antifouling property, waterdrop rolling property, adhesiveness
(durability), abrasion resistance, chemical resistance and
storage stability.” Further details of this appealed subject
matter are recited in representative claim 17 reproduced below:
17. A surface treatment composition, comprising:
a partial hydrolysate of a fluorine-containing
reactive silane represented by Formula (1):
(Rf-Q-)a(R1)bSi(X1)4-a-b Formula (1)
wherein
Rf is a monovalent fluorine-containing C1-30
organic group;
2
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