Appeal No. 1998-2985 5
Application No. 08/725,212
(1), that is to prevent the variation of the physical properties of the cord and
rubber due to the local heating but two times of vulcanizations must be carried
out and there is [a] problem in the production cost.
The above described process (3) comprises having stuck the vulcanized
color patch to the mold corresponding to the side wall and sticking said color
patch to the tire side wall portion when vulcanizing the green case, but when
the green case is generally vulcanized, a releasing agent is coated on the outer
surface of the green case in many cases in order to decrease
formation of inferior products during vulcanization as far as possible, so that the
color patch is hindered by the releasing agents during vulcanization and there is
a problem in the adhesion to the tire. In addition, the color patch stuck to
the mold corresponding to the side wall portion is liable to slip off upon contact
with the green case and furthermore it is not practically easy to stick the
color patch on the mold and even if this process is adopted, the color patch
is stuck only on one side of the tire.
See column 1, line 34 to column 2, line 7. It is evident from the above
disclosure that substantial considerations enter into the product of a cured tire having an
applique on the sidewall. Furthermore, Hayakawa specifically discloses that the state of
the patch is critical to the inventive process.
Hayakawa states that:
when the conventional unvulcanized or vulcanized color patch is used and
applied to the present invention, the following problems are caused and such uses
are practically difficult.
(1) In the case of use of the unvulcanized patch.
The color patch is enlarged upon shaping and the printed mark becomes thin
or causes unevenness, or the print itself sticks to the mold to cause stains and the
appearance of the formed color patch becomes bad and there is [a] problem in
the maintenance in view of vulcanization.
(2) In the case of [the] use of the vulcanized color patch.
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