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:
Nov. 06, 2007
Filed:
Aug. 18, 2004
Thomas E. Haskett, Oakdale, MN (US);
Kim C. Sachs, White Bear Lake, MN (US);
Randy L. Moseng, Hugo, MN (US);
Ronald E. Bergsten, Minneapolis, MN (US);
Thomas E. Haskett, Oakdale, MN (US);
Kim C. Sachs, White Bear Lake, MN (US);
Randy L. Moseng, Hugo, MN (US);
Ronald E. Bergsten, Minneapolis, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
A method of selectively applying pressure-sensitive adhesive to a nonwoven web and thereby forming a cleaning sheet having adhesive free peaks and adhesive containing valleys includes coating an adhesive transfer roll with adhesive, transferring a portion of the adhesive to raised regions of a female pattern forming roll, separating the adhesive between the adhesive transfer roll and the female pattern forming roll, and transferring the adhesive from the raised regions of the female pattern forming roll to the web. An apparatus for selectively applying pressure-sensitive adhesive to a nonwoven web and forming a cleaning sheet is also described.