Appeal 2007-2023
Application 10/757,453
For the reasons discussed below, we answer this question in the
affirmative.
RELEVANT FINDINGS OF FACT
1) Nishino discloses an automotive fuel hose (col. 1, ll. 8-10)
comprising an innermost layer 10, an adhesive layer 11, a middle
layer 12, an adhesive layer 13, and an outer layer 14 (col. 4, ll. 11-
13).
2) Nishino uses fluorine type resins and polyamide type resins
for the innermost layer 10 (col. 5, ll. 48-49). According to
Nishino, polyvinylidene fluoride resin (PVDF) and ethylene-
tetrafluoroethylene copolymer resin (ETFE) are “especially
preferable in view of their molding facility and adhesion to other
resins” (col. 6, ll. 13-15).
3) According to Nishino, the middle layer 12 is made from
polyalkylene naphthalate resins (col. 7, ll. 26-27).
4) Nishino states that “[t]he polyalkylene naphthalate resin
may, if necessary, melt-include other resins, elastomer
components, or compounds having a functional group for
improving the adhesion to the other layers” (col. 8, ll. 17-20).
5) Nishino teaches that where the innermost layer 10 is a
fluorine type resin and the middle layer 12 is a polyalkylene
naphthalate resin, the adhesive layer 11 preferably includes a
fluorine type resin and at least one of a crystalline polyester type
resin and polyester type elastomer (col. 9, ll. 27-37).
3
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Last modified: September 9, 2013