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. 07, 1982
Filed:
Dec. 10, 1980
Applicant:
Inventor:
Roger A Shefford, Aldershot, GB;
Assignee:
Koninklijke Emballage Industrie Van Leer B.V., Amstelveen, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65D / ; B05B / ;
U.S. Cl.
CPC ...
428 35 ; 428215 ; 428523 ; 428689 ; 428461 ; 427400 ; 4272552 ; 4272553 ; 4272554 ; 220455 ; 220456 ;
Abstract
The present application relates to enclosure members consisting essentially of solid, non-aromatic polymers that have a linear carbon to carbon backbone structure and having a plurality of free hydrogen atoms attached to the carbon atoms with a permeability to wet solvents and fuels of less than 1/7, optionally less than 1/40 of the permeability of untreated enclosure members having a thickness of 1 mm. Said low permeability is due to the presence of a layer of an iron phenanthroline complex on at least the inner surface of said enclosure members, having a portion of the hydrogen atoms replaced by sulfonic acid or sulfonate groups.