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:
Nov. 29, 2011
Filed:
Dec. 21, 2006
Karl E. Benson, St. Paul, MN (US);
Richard G. Hansen, Mahtomedi, MN (US);
Stephen A. Johnson, Woodbury, MN (US);
Charles M. Leir, Falcon Heights, MN (US);
Richard Y. Liu, Woodbury, MN (US);
Mark D. Purgett, Oakdale, MN (US);
Hildegard M. Schneider, Woodbury, MN (US);
Audrey A. Sherman, St. Paul, MN (US);
Karl E. Benson, St. Paul, MN (US);
Richard G. Hansen, Mahtomedi, MN (US);
Stephen A. Johnson, Woodbury, MN (US);
Charles M. Leir, Falcon Heights, MN (US);
Richard Y. Liu, Woodbury, MN (US);
Mark D. Purgett, Oakdale, MN (US);
Hildegard M. Schneider, Woodbury, MN (US);
Audrey A. Sherman, St. Paul, MN (US);
3M Innovative Properties Company, Saint Paul, MN (US);
Abstract
A composite film includes a first film and a second film contiguous to the first film. The first film includes a light transmissive material. In one embodiment, the second film includes a polydiorganosiloxane polyamide block copolymer. In another embodiment, the second film includes a polydiorganosiloxane polyoxamide block copolymer.