EP0559445A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Fuel transfer tube
Assignee: Nitta Moore Co
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Filing: 1993-03-03
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Granted: —
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Expires: 2013-03-03
Abstract
Abstract A fuel transfer tube comprises an inner layer (11,21) of hot-melt fluororesin, which reliably prevents alcohol from permeating into the tube, and an outer layer of partial aromatic polyamide resin (13, 23) or ethylene-vinyl alcohol copolymer (17, 27) which effectively prevents gasoline from permeating into the tube. The tube, therefore, is suitable for transferring alcohol, gasoline or a mixture thereof.
Inventors
- 👤 Todomu c/o Nabari Factory of Nishino
- 👤 Minoru c/o Nabari Factory of Hirota
- 👤 Yuji c/o Nabari Factory of Nakabayashi
- 👤 Akashi c/o Nabari Factory of Nakatsu
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-28 14:42
CPC Classifications
F; F16; F16L; F16L11/00; F16L11/04; F16L11/045; F16L11/12; F16L9/00; F16L9/12; F16L9/133; F16L2011/047; Y; Y10; Y10T; Y10T428/00; Y10T428/13; Y10T428/1352; Y10T428/1379; Y10T428/139; Y10T428/1393
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
47 words
A fuel transfer tube comprising at least a first layer and a second layer, the first layer being an inner layer of hot-melt fluororesin (11, 21) and the second layer being an outer layer of partial aromatic polyamide resin (13, 23) or ethylene-vinyl alcohol copolymer (17, 27).
Claim 2
Dependent Claim
21 words
A fuel transfer tube according to claim 1, wherein the hot-melt fluororesin of the first layer (11) is polyvinylidene fluoride resin.
Claim 3
Dependent Claim
22 words
A fuel transfer tube according to claim 1, wherein the hot-melt fluororesin of the first layer (21) is ethylene-ethylene tetrafluoride copolymer resin.
Claim 4
Dependent Claim
77 words
A fuel transfer tube according to claim 1, wherein the second layer is a partial aromatic polyamide resin (13, 23) comprising a polyamide containing a diamine component and a dicarboxylic acid component, with an aromatic ring in at least part of the molecular chain of at least one of the two components and an aliphatic or alicyclic component in the other part thereof, and which is obtained by condensation polymerizition of the diamine and dicarboxylic acid components.
Claim 5
Dependent Claim
28 words
A fuel transfer tube according to claim 1, wherein the second layer is an ethylene-vinyl alcohol copolymer (17, 27) which is obtained by saponification of ethylene-vinyl acetate copolymer.
Claim 6
Dependent Claim
32 words
A fuel transfer tube according to claim 5, wherein the ethylene-vinyl alcohol copolymer has an ethylene content of 60 mol% or less and a degree of the saponification of 90% or more.
Claim 7
Dependent Claim
28 words
A fuel transfer tube according to any preceding claim further comprising an adhesive layer between the first layer (11, 21) and the second layer (13, 23, 17, 27).
Claim 8
Dependent Claim
44 words
A fuel transfer tube according to claim 3, wherin the outside surface of the first layer (21) is treated by corona discharge and an epoxy adhesive layer is provided between the treated surface of the first layer (21) and the second layer (23, 27).
References Cited (Backward Citations)
US4330017A
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EP0124931A1
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JPS6081590A
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JPS61171981A
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JPH01286829A
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JPH04140585A
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US5170011A
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