Co-crystallized acetylenic compounds

Details Co-crystallized acetylenic compounds Co-crystallized acetylenic compounds

1978-11-13

1983-05-24

Barr, J. L.

Chemistry: analytical and immunological testing

Including use of radioactive properties

Dosage determination of high energy radiation,

116202, 116207, 427270, 427283, 20415922, 436147, 436164, 436905, C09K 300

Patent

active

043849806

ABSTRACT:
A composition is described comprising at least two co-crystallized acetylenic compounds, of different chemical structures, each containing at least one --C.tbd.C--C.tbd.C-- group and substituents selected from the group consisting of sulfonate, urethane and alcohol radicals, at least one of the compounds capable of ungergoing a contrasting color change upon exposure to actinic radiation or thermal annealing, wherein the composition exhibits a substantially different thermogram than the sum of thermograms of the individual components as obtained by differential scanning alorimetry.
A device is also described useful for measuring the time-temperature or radiation-dosage history of an article comprising a substrate having deposited thereon the described composition.
A process is also described for producing the composition of this invention.

REFERENCES:
patent: 3501308 (1970-03-01), Adelman
patent: 3615719 (1971-10-01), Michel et al.
patent: 3811895 (1974-05-01), Ehrlich
patent: 3999946 (1976-12-01), Patel et al.

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