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:
Apr. 24, 2001
Filed:
Jun. 09, 1998
Stefan H. Gryska, Woodbury, MN (US);
Ronald S. Steelman, Woodbury, MN (US);
Loren R. Schreader, Lino Lakes, MN (US);
Clinton P. Waller, Jr., White Bear Lake, MN (US);
Joseph W. Frisk, St. Paul, MN (US);
Steven B. Johnson, River Falls, WI (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
Environmental stabilizing agents are stored in an adhesive adjoining, directly or indirectly, a film or membrane that requires protection from the environment. Such stabilizing agents include ultra-violet protectors and anti-oxidants. Migration of such environmental stabilizing agents from an adhesive to a film or membrane permits the use of new and different materials for such films and membranes because their method of manufacture no longer needs to accommodate the heat and processing sensitivities of the stabilizing agents.