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:
Jan. 15, 2002
Filed:
Oct. 04, 1993
Multi-stage irradiation process for production of acrylic based adhesives and adhesives made thereby
John D. Moon, Hastings, MN (US);
Louise A. Ziegler, Minneapolis, MN (US);
George F. Vesley, Hudson, WI (US);
Robert C. Mehner, Oakdale, MN (US);
Mark S. Edberg, Centerville, MN (US);
Robert D. Anderson, St. Paul, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
Disclosed is a novel, multi-stage irradiation process for the production of an acrylic-based adhesive or pressure-sensitive adhesive tape. The first irradiation step or stage employs electromagnetic radiation at a relatively low average intensity (i.e., 0.1 to 20 mW/cm ) and the subsequent step employs electromagnetic radiation at a relatively higher average intensity (i.e., greater than 20 mW/cm .) Also disclosed are acrylic-based psa tape materials made by the novel process.