US 2010/0247829 A1Published application

Resin fuel-supply component

AssigneeTokai Rubber Industries, Ltd.

InventorsTakashi Yajima, Kazutaka Katayama

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Abstract

A resin fuel-supply component which has lower fuel permeability and excellent weldability to a resin fuel tank. The resin fuel-supply component is composed of an alloy material which comprises a sea phase, an island phase dispersed in the sea phase and a sea-island compatibilizing layer present between the sea phase and the island phase. The sea phase comprises a higher-acid-modification-ratio high-density polyethylene resin (A), a lower-acid-modification-ratio high-density polyethylene resin (B), and an unmodified high-density polyethylene resin (C). The island phase comprises an unmodified polyamide resin (D) and a modified polyamide resin (E). In the resin fuel-supply component, the proportion of the modified polyamide resin (E) is not greater than 8 wt % based on the total weight of resins (A)-(E).

Claims7

Dependent claims

A resin fuel-supply component composed of an alloy material which comprises a sea phase, an island phase dispersed in the sea phase and a sea-island compatibilizing layer present between the sea phase and the island phase,

the sea phase comprising a higher-acid-modification-ratio high-density polyethylene resin (A), a lower-acid-modification-ratio high-density polyethylene resin (B), and an unmodified high-density polyethylene resin (C),
the island phase comprising an unmodified polyamide resin (D) and a modified polyamide resin (E),
wherein the modified polyamide resin (E) is present in the alloy material in a proportion of not greater than 8 wt % based on a total weight of the higher-acid-modification-ratio high-density polyethylene resin (A), the lower-acid-modification-ratio high-density polyethylene resin (B), the unmodified high-density polyethylene resin (C), the unmodified polyamide resin (D) and the modified polyamide resin (E).

Dependencies are inferred from the claim text.

Facts

Application: 12/749,059Filed 29 Mar 2010
Priority: JP 2009-08210430 Mar 2009
Published: 30 Sep 2010
Term ends: Not estimatedThe source records don’t support an estimate.

Classification15 codes

B60K 15/04
Fuel tanks: tank inlets
B60K 15/03177
Fuel tanks: made of non-metallic material, e.g. plastics, or of a combination of non-metallic and metallic material
C08L 23/06
Homopolymers or copolymers of ethene: polyethylene
C08L 77/00
Compositions of polyamides obtained by reactions forming a carboxylic amide link in

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