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:
Jun. 28, 2005
Filed:
Apr. 30, 2003
Frank T. Sher, St. Paul, MN (US);
Larry A. Meixner, Woodbury, MN (US);
Francis V. Loncar, Jr., Hudson, WI (US);
Clyde D. Calhoun, Stillwater, MN (US);
Frank T. Sher, St. Paul, MN (US);
Larry A. Meixner, Woodbury, MN (US);
Francis V. Loncar, Jr., Hudson, WI (US);
Clyde D. Calhoun, Stillwater, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
Adhesives having a microreplicated topography are prepared from contacting a microembossed pattern to a layer of adhesive. When an adhesion interface is established between the layer of adhesive and a supporting substrate, the topography of the adhesive surface controls the performance of the adhesion interface. Articles having microreplicated adhesive surfaces are also disclosed that have an advantage of providing microchannels for fluid egress for an effective period of time. Multiple microeombossed patterns produce microreplicated adhesive surfaces having both microchannels for fluid egress and pegs for improved adhesive properties.