Colored polarizing film and method of making same

Details Colored polarizing film and method of making same Colored polarizing film and method of making same

1988-01-11

1989-06-27

Ivy, C. Warren

Plastic and nonmetallic article shaping or treating: processes

Optical article shaping or treating

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

524 84, 524 87, 524 89, 524190, 524207, 524208, 524242, 524259, 524325, 524358, 524467, 524485, 524285, 524605, 524606, C09K 300

Patent

active

048427810

ABSTRACT:
Disclosed is a colored polarizing film having excellent durability which comprises (a) an organic polymer film or sheet and (b) at least one dichroic dye having an azo, anthraquinone, thioindigo, perylene or phthalone structure containing no water-soluble group. Also disclosed is a method of making a colored polarizing film using an organic polymer film or sheet formed of a polyamide or polyester resin, which comprises the steps of (a) blending (preferably, dry blending) a dichroic dye with the resinous polymer in advance, (b) melting the resulting blend and forming it into a film, and then (c) stretching the film in at least one direction.

REFERENCES:
patent: 2246087 (1941-06-01), Bailey
patent: 3846369 (1974-11-01), Whyte

Affiliated with

Also associated with

Rating

Colored polarizing film and method of making same does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Colored polarizing film and method of making same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Colored polarizing film and method of making same will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-811724