Title:
AUTOMOBILE FUEL TANK
Document Type and Number:
WIPO Patent Application WO/2013/099873
Kind Code:
A1
Abstract:
[Problem] To provide a fuel tank with excellent blow moldability, high heat resistance and deformation-suppressing properties. [Solution] This automobile fuel tank, wherein a high-density polyethylene (HDPE) with an outer body layer (12) and an inner body layer (16) of an outer wall (10) has the following physical properties: 1) a modulus of elasticity of 1100 to 1400 MPa at 23°C; 2) a modulus of elasticity of 340 to 430 MPa at 65°C; 3) a modulus of elasticity of 400 to 510 MPa at 23°C after being immersed in a fuel (D) for 200 hours at 65°C; 4) a Charpy impact strength of 7 to 14 kJ/m2 at -40°C; 5) a full-notch creep test (FNCT) result of 50 to 300 hours at 80°C; 6) a melt flow rate (MFR) result of 4 to 6 (g/10 minutes) at 190°C and a load of 21.6 kg; and 7) a melt tension of 18 to 25 g when a sample that has been melted at 210°C is extruded from a nozzle with a diameter of 2.095 mm and a length of 8 mm at an extrusion rate of 15 mm/minute, and drawn at a take-up speed of 7.5 m/minute.
Inventors:
AOE RYUTA (JP)
TANAKA HIROYUKI (JP)
NAITO KAZUAKI (JP)
KATO HISAMITSU (JP)
IWAI HISAYUKI (JP)
UMEMOTO YOSHIRO (JP)
KAJIKAWA KATSUHIRO (JP)
TANAKA HIROYUKI (JP)
NAITO KAZUAKI (JP)
KATO HISAMITSU (JP)
IWAI HISAYUKI (JP)
UMEMOTO YOSHIRO (JP)
KAJIKAWA KATSUHIRO (JP)
Application Number:
PCT/JP2012/083489
Publication Date:
July 04, 2013
Filing Date:
December 25, 2012
Export Citation:
Assignee:
FTS CO LTD (JP)
International Classes:
B60K15/03; B32B27/28; B32B27/32; C08F10/02
Foreign References:
| JP2009006858A | 2009-01-15 | |||
| JP2008114819A | 2008-05-22 | |||
| JP2009155492A | 2009-07-16 |
Attorney, Agent or Firm:
KASUYA TAKAHIKO (JP)
Norihiko Kasuya (JP)
Norihiko Kasuya (JP)
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Claims: