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:
Dec. 21, 1999
Filed:
Jul. 09, 1998
Applicant:
Inventors:
Jean-Claude Abed, Charlotte, NC (US);
Bobby N Furr, Fort Mill, SC (US);
Bettina E Bonsall, Bridgewater, NJ (US);
Douglas R Holcomb, South Orange, NJ (US);
Assignee:
Hoechst Trespaphan GmbH, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ; B32B / ; B05D / ;
U.S. Cl.
CPC ...
428451 ; 427223 ; 427322 ; 4273978 ; 427403 ; 4274123 ; 427536 ; 427574 ; 428517 ; 428518 ; 428519 ; 428520 ;
Abstract
A method for providing improved adhesion of a waterborne, inorganic barrier coating to polyolefin substrate is described. The method involves corona-treatment of the substrate and applying a barrier coating composition. The polyolefin substrate is coated with an acrylic primer layer and then an inorganic barrier layer of a copolysilicate of lithium and potassium is applied.