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:
Jun. 06, 2017
Filed:
Sep. 02, 2011
Ryan E. Marx, Rosemount, MN (US);
Jay M. Jennen, Forest Lake, MN (US);
Daniel E. Meyer, Lake Elmo, MN (US);
William J. Schultz, North Oaks, MN (US);
Wendy L. Thompson, Roseville, MN (US);
Ryan E. Marx, Rosemount, MN (US);
Jay M. Jennen, Forest Lake, MN (US);
Daniel E. Meyer, Lake Elmo, MN (US);
William J. Schultz, North Oaks, MN (US);
Wendy L. Thompson, Roseville, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
Multilayer polymeric films which may be useful for protecting the leading edges of aircraft from rain and sand erosion are presented. Typical surface protection films comprising two or more layers of a first material alternating with one or more layers of a second material, wherein the first and second materials are different materials, wherein the first and second materials comprise first and second polymers, wherein the first and second materials have a first and second Shore hardness, and wherein the first Shore hardness is greater than the second Shore hardness by more than 5 A or more typically more than 10 A.