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:
Sep. 01, 2026
Filed:
Nov. 07, 2023
Contitech Usa, Inc., Fairlawn, OH (US);
Heath Harris, Akron, OH (US);
Thomas George Burrowes, North Canton, OH (US);
CONTITECH USA, LLC, Fairlawn, OH (US);
Abstract
A multilayer permeation resistant article, such as a fuel transfer hose, includes an elastomeric layer and a polyketone (PK) barrier layer. The elastomeric layer may be directly bonded to the PK barrier layer without an intervening adhesive layer. To facilitate such direct bonding, the elastomeric layer may be formed from a composition including one or more ethylene vinyl acetate elastomer(s). The elastomeric composition may include additional elastomer(s), such as chlorinated polyethylene (CPE), acrylonitrile butadiene rubber (NBR), hydrogenated nitrile rubber (HNBR), or chlorosulfonated polyethylene (CSM). The barrier layer may exhibit a permeation rate of less than 10 g/m/day. The bonding performance of the elastomeric layer to the PK barrier layer may be characterized by an average load per width of 10 lbf/in or greater.