The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 24, 1995
Filed:
Aug. 23, 1993
Yutaka Takado, Yokohama, JP;
Toshikazu Nakasato, Yokohama, JP;
Tetsuro Nogata, Yokohama, JP;
Eiji Tezuka, Toyota, JP;
Toshio Yokoi, Toyota, JP;
Tonen Chemical Corporation, Tokyo, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
A multi-layer plastic fuel tank is constituted by at least one high-density polyethylene layer, at least one polyamide layer, and at least one modified high-density polyethylene layer made of high-density polyethylene modified with an unsaturated carboxylic acid or its derivatives, which is interposed between each high-density polyethylene layer and each polyamide layer for bonding them, the polyamide layer being made of a polyamide copolymer comprising 90-60 weight % of polyamide 6 and 10-40 weight % of polyamide 66.