EP 0000209 B1 19820210 - VISIBLE-RANGE LIGHT POLARIZER WITH AN IODINE-STAINED POLYVINYL ALCOHOL FILM, AND METHOD FOR ITS PREPARATION.
Title (en)
VISIBLE-RANGE LIGHT POLARIZER WITH AN IODINE-STAINED POLYVINYL ALCOHOL FILM, AND METHOD FOR ITS PREPARATION.
Publication
Application
Priority
US 81099677 A 19770629
Abstract (en)
[origin: EP0000209A1] Avisible range light polariser with an iodine stained polyvinyl-alcohol film is prepared by treating the previously oriented and stained film with a borating solution containing a high level of potassium iodide. The insufficient red light dichroism resulting from this treatment can be avoided by incorporating zinc ions into the polariser after staining.
IPC 1-7
IPC 8 full level
B29C 49/00 (2006.01); B29C 55/00 (2006.01); B29C 55/04 (2006.01); B29C 55/06 (2006.01); C08J 5/18 (2006.01); D06P 3/00 (2006.01); G02B 5/30 (2006.01)
CPC (source: EP)
G02B 5/3033 (2013.01)
Designated contracting state (EPC)
BE DE FR GB NL
DOCDB simple family (publication)
EP 0000209 A1 19790110; EP 0000209 B1 19820210; AU 3627778 A 19791122; AU 517329 B2 19810723; DE 2861617 D1 19820318; IT 1097458 B 19850831; IT 7825114 A0 19780629; JP S5416575 A 19790207; JP S6033245 B2 19850801
DOCDB simple family (application)
EP 78200002 A 19780601; AU 3627778 A 19780519; DE 2861617 T 19780601; IT 2511478 A 19780629; JP 7850478 A 19780628