04215208 is referenced by 58 patents and cites 7 patents.

Certain polyacetylenes exhibit reversible color changes at transition temperatures in the range -180.degree. to 220.degree. C., wherein the thermochromic cycles can be repeated many times with no apparent degradation and little change in spectroscopic properties.

These thermochromic polyacetylenes are useful in temperature-indicator and indicia-display device applications.

A process for laser-beam recording of images is described employing a thermochromic polyacetylene, in which the hysteresis properties of the polyacetylene can be suitably altered allowing for selectively storing or erasing the formed image.

Title
Thermochromic polyacetylenes containing urethane groups
Application Number
5/839678
Publication Number
4215208
Application Date
October 5, 1977
Publication Date
July 29, 1980
Inventor
Ray H Baughman
Morris Plains
NJ, US
Granville G Miller
Morristown
NJ, US
Ronald R Chance
Morris Plains
NJ, US
Gordhanbhai N Patel
Morris Plains
NJ, US
Anthony F Preziosi
Ledgewood
NJ, US
Kwok C Yee
Randolph
NJ, US
Agent
Robert A Harman
Robert J North
Gerhard H Fuchs
Assignee
Allied Chemical Corporation
NJ, US
IPC
C08L 49/00
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