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:
Mar. 23, 1999
Filed:
Jan. 15, 1998
Jack L Price, Austin, TX (US);
James N Kellen, Austin, TX (US);
Minnesota Mining and Manufacturing Company, St. Paul, MN (US);
Abstract
A composite tack-free film having a film substrate with opposing surfaces, bearing on at least one of said surfaces a highly crosslinked, film-forming acrylate composition containing from about 25 to about 78 of at least one lower alkyl (meth)acrylate ester and from about 10 to about 60 percent vinyl acetate and at least about 1 percent of a polar monomer, wherein the acrylate composition is capable of attaching temporarily to polyimide film surface to provide a substantially air-tight seal and being cleanly removable from said polyimide film surface leaving no visible residue, even after being subjected to elevated temperatures.