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1. (WO2018034854) POLARIZER

Pub. No.:    WO/2018/034854    International Application No.:    PCT/US2017/045305
Publication Date: Fri Feb 23 00:59:59 CET 2018 International Filing Date: Fri Aug 04 01:59:59 CEST 2017
IPC: G02B 5/30
B32B 27/08
B32B 7/02
Applicants: 3M INNOVATIVE PROPERTIES COMPANY
Inventors: GILLETTE, Kristy, A.
LOCKRIDGE, James, E.
NIESON, Brianna, N.
NOYOLA, Joan, M.
PETAJA, Jason, S.
JOHNSON, Matthew, B.
HAGEN, Jeffrey, W.
Title: POLARIZER
Abstract:
A polarizer including an oriented polymeric first layer is described. The oriented polymeric first layer is preparable from a mixture of polyvinyl alcohol and crosslinker where the crosslinker is included in the mixture at 5 to 40 percent by weight based on the total weight of the polyvinyl alcohol and crosslinker. The oriented polymeric first layer is a substantially uniaxially drawn layer, in that for U=(1/MDDR-1)/(TDDR1/2 -1), U is at least 0.85, with MDDR being a machine direction draw ratio and TDDR being a transverse direction draw ratio.