Dynamic information storage or retrieval – Specific detail of information handling portion of system – Radiation beam modification of or by storage medium
Patent
1988-02-26
1990-10-23
McElheny, Jr., Donald
Dynamic information storage or retrieval
Specific detail of information handling portion of system
Radiation beam modification of or by storage medium
3692752, G11B 700
Patent
active
049657836
ABSTRACT:
The invention relates to a method for recording, storing, and displaying optically readable information in a medium, with the use of a plastic material which can be modified in an optically differentiable way under the action of thermal energy or a form of energy directly convertible into thermal energy. In the method, a polyblend is employed which is comprised of at least two disparate polymers and which are mutually compatible, and which polyblend has an upper critical solution temperature (UCST), whereby an optically differentiable modification of the information storage medium is brought about by the phase transformation from a compatible polyblend above the UCST to the deblended polymers (P1, P2) below the UCST, or the reverse of this transformation.
REFERENCES:
patent: 4635245 (1987-01-01), Smith
patent: 4722595 (1988-02-01), Siol
patent: 4731417 (1988-03-01), Miyata et al.
patent: 4734359 (1988-03-01), Oguchi et al.
patent: 4757492 (1988-07-01), Fukushima et al.
patent: 4777492 (1988-10-01), Ohnishi et al.
Siol Werner
Terbrack Ulrich
McElheny Jr. Donald
Rohm GMBH Chemische Fabrik
LandOfFree
Compatible polymers, and use of same for registering optically r does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Compatible polymers, and use of same for registering optically r, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Compatible polymers, and use of same for registering optically r will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-772047