Polydiacetylene polymer blends

Radiation imagery chemistry: process – composition – or product th – Thermographic process

Reexamination Certificate

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C430S346000, C430S364000, C428S500000, C522S162000, C522S174000, C522S150000, C522S152000, C522S153000, C522S154000, C522S173000, C522S178000, C522S182000, C526S285000

Reexamination Certificate

active

07371511

ABSTRACT:
Polymer blend compositions that include diacetylene segments are provided. The polymers containing diacetylene segments are capable of a calorimetric indication in response to stimuli, such as heat, an analyte or exposure to certain environmental factors, despite being blended with other materials, such as polymers or additives.

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USPTO Office Action dated Jan. 16, 2007; U.S. Appl. No. 10/922,092, filed Aug. 19, 2004; Inventor: Jeffrey J. Cernohous; 7 pages.

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