06368699 is referenced by 214 patents and cites 22 patents.

A multilayer polymer film has an optical stack including a plurality of alternating polymer layers with skin layers having mechanical, optical, or chemical properties differing from those of the layers in the optical stack, wherein the refractive indices in the in-plane direction n

x

and n

y

, and the refractive index in the thickness direction n

z

for each layer are all selected to obtain optical effects such as reflection, transmission, and/or polarization.

Title
Multilayer polymer film with additional coatings or layers
Application Number
8/910660
Publication Number
6368699 (B1)
Application Date
August 13, 1997
Publication Date
April 9, 2002
Inventor
William W Merrill
St. Paul
MN, US
Michael F Weber
St. Paul
MN, US
Carl A Stover
St. Paul
MN, US
Andrew J Ouderkirk
St. Paul
MN, US
James M Jonza
St. Paul
MN, US
Laurence R Gilbert
St. Paul
MN, US
Assignee
3M Innovative Properties Company
MN, US
IPC
B32B 7/00
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