Coating processes – Coating remains adhesive or is intended to be made adhesive – Pressure sensitive adhesive
Reexamination Certificate
2007-08-07
2007-08-07
Fletcher, III, William Phillip (Department: 1762)
Coating processes
Coating remains adhesive or is intended to be made adhesive
Pressure sensitive adhesive
C427S256000, C427S428060, C427S210000, C427S211000
Reexamination Certificate
active
10920473
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, 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.
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Handbook of Pressure-Sensitive Adhesive Technology, 2nd ed., Chapter 13, D. Satas, Editor, Van Nostrand Reinhold, Publisher, NY 1989.
Handbook of Pressure-Sensitive Adhesive Technology, 2nd ed., Chapter 16, p. 473, D. Satas, Editor, Van Nostrand Reinhold, NY, 1989.
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Haskett et al., U.S. Appl. No. 10/920,953, filed Aug. 18, 2004, titled “Method and Apparatus for Making An Adhesive Cleaning Sheet”.
Bergsten Ronald E.
Haskett Thomas E.
Moseng Randy L.
Sachs Kim C.
3M Innovative Properties Company
Adamson Trisha D.
Fletcher, III William Phillip
Sellman Cachet I.
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