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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.:

US 9873276 B1

PDFFull Text
Date of Patent:
Jan. 23, 2018

Filed:

Oct. 30, 2014

Microcontact printing stamps with functional features

Applicant:

3m Innovative Properties Company, St. Paul, MN (US);

Inventors:

Catherine P. Tarnowski, Mahtomedi, MN (US);

David A. Johnson, Woodbury, MN (US);

Roger W. Barton, Afton, MN (US);

Larry L. Johnson, Hudson, WI (US);

Jonathan J. O'Hare, Oakdale, MN (US);

Tyler J. Rattray, Minneapolis, MN (US);

Daniel M. Lentz, Cottage Grove, MN (US);

Jeffrey H. Tokie, Scandia, MN (US);

Matthew H. Frey, Cottage Grove, MN (US);

Mikhail L. Pekurovsky, Bloomington, MN (US);

Assignee:

3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US);

Attorney:

James A. Baker

Primary Examiner:

Lixi C Simpson

Int. Cl.
CPC ...
B41K 1/38 (2006.01); G06F 3/041 (2006.01); B41D 7/00 (2006.01); G03F 7/00 (2006.01); H05K 3/12 (2006.01); B41K 3/44 (2006.01);
U.S. Cl.
CPC ...
B41K 1/38 (2013.01); B41D 7/00 (2013.01); B41K 3/44 (2013.01); G03F 7/0002 (2013.01); G06F 3/041 (2013.01); H05K 3/1275 (2013.01); G06F 2203/04112 (2013.01); H05K 2203/0143 (2013.01);
Abstract

A method includes providing an elastomeric stamp including a stamping surface with a first pattern element having a fill factor of 20 to 99 percent and including a continuous region and at least one discontinuous region, the discontinuous region including at least one of: (1) one or more elongated concavities, and (2) one or more interior voids. A second pattern element of the stamping surface has a fill factor of 0.25 to 10 percent, and includes traces with a width from 0.1 micrometers to 50 micrometers. The stamping surface is inked with an ink composition including a functionalizing molecule with a functional group selected to bind to a surface of the ink-receptive material. The inked stamping surface is contacted with an ink-receptive material selected from a sheet or a web for a contact time sufficient to bind the functional group with the surface of the ink-receptive material to form a self-assembled monolayer (SAM) of the functionalizing material.

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