Appeal No. 1998-1015
Application No. 08/208,912
having 2 to 22 carbon atoms, acidic phosphoric esters
having I to 44 carbon atoms, metal salts of the acidic
phosphoric esters and triazole compounds having 2 to 24
carbon atoms; and
(C) an ester compound;
said components (A), (B) and (C) being present in a
weight ratio in the range of 1:0.1 to 50:1 to 800 and
being in the form of a homogenous fused mixture,
and
said component (C) being selected from the following
compounds having a ĪT value measured as melting
point (/C) - clouding point (/C) in the range of from
5/C to less than 50/C: an alkyl ester, aryl ester and
cycloalkyl ester of an aromatic-carboxylic acid which
is unsubstituted or substituted by one or more
substituents in the aromatic ring, a branched alkyl
ester, aryl ester, arylalkyl ester, a cycloalkyl ester of
aliphatic carboxylic acid, an alkyl ester of alicyclic
carboxylic acid, a diester of dicarboxylic acid and a
glyceride.
The examiner relies upon the following references as evidence of obviousness:
Shibahashi et al. 4,425,161 Jan. 10, 1984
Kito et al. (Kito '565) 4,554,565 Nov. 19, 1985
Shimizu et al. (Shimizu) 4,560,604 Dec. 24, 1985
Kito et al. (Kito '301) 4,720,301 Jan. 19, 1988
Appellants' claimed invention is directed to a color memory toy which surface is
painted with a quasi-reversible thermochromic coloring material. According to page 5 of
appellants' specification, "the toy of the present invention is constructed such that one
of two visual configurations can be selected and held according to user's desire." We
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