Production of light polarizing films

Details Production of light polarizing films Production of light polarizing films

1992-07-14

1994-02-15

Lowe, James

Plastic and nonmetallic article shaping or treating: processes

Optical article shaping or treating

Utilizing plasma, electric, electromagnetic, particulate, or...

264205, 264216, 427163, B29D 1100

Patent

active

052864200

ABSTRACT:
A process for the production of light-polarizing films containing polyvinyl alcohol, dichroic dye-producing components, optionally other dye-producing components, optionally additives, and optionally surface active compounds, wherein the films comprise two or more layers and said film layers have a sudden change in composition at the layer phase boundaries between at least two layers, and said layers are applied to a substrate by means of a multiple coater.

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