Fluorinated benzenesulfonate diacetylenes

Details Fluorinated benzenesulfonate diacetylenes Fluorinated benzenesulfonate diacetylenes

1978-09-13

1981-07-14

Padgett, Benjamin R.

Compositions

Nonreactive analytical, testing, or indicating compositions

20415911, 422 56, 73356, 116207, 250474, 260456P, 426 87, 426 88, 526285, C09K 300

Patent

active

042785618

ABSTRACT:
New fluorinated benzenesulfonate diacetylene compositions are described which are useful in time-temperature devices for monitoring the shelf-lives of perishable articles. The compositions are solid-state polymerizable by thermal annealing or exposure to actinic or high energy ionizing radiation. Some of the compositions, in addition, exhibit relatively longer polymerization induction periods, compared to other known diacetylene compositions, and an "autocatalytic" effect upon polymerization during which a rapid color change occurs. These characteristics are extremely useful in monitoring situations which require a striking color change as an indication that a particular time-temperature history profile, e.g. shelf-life, has expired.

REFERENCES:
patent: 3966414 (1976-06-01), Khattab et al.
patent: 3999946 (1976-12-01), Patel et al.
patent: 4154107 (1979-05-01), Giezen et al.
Die Makromolekulare Chemie, vol. 145, (1971) pp. 85-94 by Gerhard Wegner.
Acta Crystal (1978) B-34, pp. 143-147 and 147-151, by J. J. Mayerle and T. C. Clark.

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