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:
Jul. 04, 2006
Filed:
Jun. 20, 2003
Clyde D. Calhoun, Grant Township, MN (US);
David C. Koskenmaki, St. Paul, MN (US);
James G. Berg, Lino Lakes, MN (US);
Jennifer M. Aamodt, Woodbury, MN (US);
Clyde D. Calhoun, Grant Township, MN (US);
David C. Koskenmaki, St. Paul, MN (US);
James G. Berg, Lino Lakes, MN (US);
Jennifer M. Aamodt, Woodbury, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
A unitary polymer substrate having a plurality of microfibers projecting from a surface is provided. The presence of the microfibers greatly increases the surface area and can impart a cloth-like feel to the surface. The projecting microfibers may have a variety of forms, including frayed-end microfibers, tapered microfibers, microfibers having an expanded cross-sectional shape, and microfibers having a very high aspect ratio. A number of methods of producing unitary polymer structures with a plurality of projecting microfibers are also provided.