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:
Sep. 08, 1992
Filed:
Nov. 22, 1991
James J Pedginski, Stillwater, MN (US);
Ronald B Birkholz, White Bear Lake, MN (US);
Minnesota Mining and Manufacturing Company, St. Paul, MN (US);
Abstract
A tape comprising a biaxially-oriented backing made from a polymeric film bearing on one major surface thereof a layer of pressure-sensitive adhesive and on the other major surface thereof a layer of low-adhesive backsize composition. The backing and the layer of pressure-sensitive adhesive intermix so as to form a commingled layer between them. This invention also provides a process of preparing pressure-sensitive adhesive tape comprising the steps of (1) providing an extruded polymeric film backing, (2) orienting said backing in the machine direction, (3) applying a low-adhesive backsize layer to one major surface of said backing, (4) applying a pressure-sensitive adhesive layer to the major surface of said backing not bearing the low-adhesion backsize layer, (5) orienting the layer-bearing backing in the transverse direction by heating and cross-stretching the layer-bearing backing, (6) winding the machine direction oriented, transverse direction oriented, layer-bearing backing onto a roll, and (7) optionally, converting the machine direction oriented, transverse direction oriented, layer-bearing backing to form a tape.