Stock material or miscellaneous articles – Liquid crystal optical display having layer of specified... – With charge transferring layer of specified composition
Patent
1992-06-11
1993-11-02
Buffalow, Edith
Stock material or miscellaneous articles
Liquid crystal optical display having layer of specified...
With charge transferring layer of specified composition
428500, 4284111, 524 89, C09K 1900
Patent
active
052582086
ABSTRACT:
Process for the manufacture of a polarizing film by drawing a polymer film containing a dichroic dye at a temperature above the glass transition temperature of the polymer, the polymer film consisting mainly of a semi-crystalline polyolefine and being drawn at a temperature below the crystalline melting point of the polyolefine, the dye being present in liquid form at that drawing temperature, and a polarizing dye-containing polyolefine film having a dichroic ratio of at least 15.
REFERENCES:
patent: 4824882 (1989-04-01), Nakamura et al.
patent: 4842781 (1989-06-01), Nishizawa et al.
Buffalow Edith
DSM N.V.
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