Azo polymers for reversible optical storage

Details Azo polymers for reversible optical storage Azo polymers for reversible optical storage

1991-08-05

1992-12-22

Bowers, Jr., Charles L.

Radiation imagery chemistry: process, composition, or product th

Erasable imaging

430 21, 430270, 430495, 430945, 365113, 3461351, G11B 724

Patent

active

051733811

ABSTRACT:
A novel series of azo polymers, copolymers and polymer blends for reversible optical storage devices are described. Various azobenzenes can be bound in the side chain or within the main chain of long chain polymers such as polyester, polystyrene and poly methacrylates with very short or no spacers to a form amorphous polymers which as a film or deposited on a transparent substrate can be used to record optical information using a linearly polarized laser beam which induces optical anisotropy in the film. The information can be erased thermally by heating above the glass transition temperature, or optically by overwriting with light polarized in a predefined zero direction or with circularly polarized light.

REFERENCES:
patent: 4619990 (1986-10-01), Elmasry
patent: 5023859 (1991-06-01), Eich et al.
Makromol Chem., 191 2133 (1990), Wiesner et al.
Makromol Chem., Rapid Commun. 12 81-87 (1991), Stumpe et al.
Nature vol. 351 49-50 May 1991, Gibbons et al.
Macromolecules 1990, 23, 42-48, Ikeda et al.
Makromol Chem., 192 215-221 (1991), Ikeda et al.
Applied Optics vol. 29 No. 4, 446-447 (1990), Ebralidze et al.
Makromol Chem., Rapid Commun. 10 477-483 (1989), Andesle et al.

Affiliated with

Also associated with

Rating

Azo polymers for reversible optical storage does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Azo polymers for reversible optical storage, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Azo polymers for reversible optical storage will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-974621