Appeal No. 1997-2977
Application No. 08/431,688
easily withstand cleaning without destroying the
topcoat in an earth non-space environment.
The subject matter on appeal relates to a substrate which
contains a thermal control coating having certain protected
optical properties and which is useful in a low earth orbit
outer space environment (substitute appeal brief, page 3).
The substrate comprises the recited non-ferrous metal
substrate, the recited porous inorganic white paint thermal
control coating, and the recited fluoropolymer protective
topcoat. According to the appellants, the fluoropolymer
topcoat protects the optical properties, but does not alter or
reduce the solar reflectance, of the inorganic white paint
(substitute appeal brief, page 4). Further, the appellants
state that the fluoropolymer topcoat is sufficiently durable
to easily withstand cleaning without destroying the topcoat in
a non-space environment (id.).
The examiner relies upon the following prior art
references as evidence of unpatentability:
Klahr 4,074,482 Feb. 21,
1978
Mozelewski et al. 5,290,424 Mar. 01,
1994
(Mozelewski) (filed Jan. 31, 1992)
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