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:
Feb. 02, 2010
Filed:
Jul. 27, 2006
Christopher K. Haas, Cottage Grove, MN (US);
Robert D. Taylor, Stacy, MN (US);
William B. Black, Eagan, MN (US);
James M. Jonza, Woodbury, MN (US);
Terrence E. Cooprider, Woodbury, MN (US);
Christopher K. Haas, Cottage Grove, MN (US);
Robert D. Taylor, Stacy, MN (US);
William B. Black, Eagan, MN (US);
James M. Jonza, Woodbury, MN (US);
Terrence E. Cooprider, Woodbury, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
The present invention is directed an oriented, foamed article having an ink-receptive surface, and a method of making the article. The invention provides a printable substrate comprising at least one high melt-strength, oriented polypropylene foam layer having an ink-receptive surface. The high melt-strength polypropylene having a melt strength of 25 to 60 cN at 190° C. The ink-receptive surface may comprise and oxidizing treatment, such as corona or flame-treatment of the foam surface, or may comprise an ink-receptive coating, such as a primer coating, on the foam surface. The oriented foam article is particularly useful in the preparation of printed security documents such as currency, stock and bond certificates, birth and death certificates, land titles and abstracts and the like.