Gamma ray-sensitive phthalocyanine compound of poly...

Compositions: coating or plastic – Coating or plastic compositions – Marking

Reexamination Certificate

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C106S031780, C540S139000, C540S140000

Reexamination Certificate

active

07981208

ABSTRACT:
The present invention relates to phthalocyanine compound of poly cross-linking type which is represented with the below formula 1 and is useful for preventing forgery and alternation due to a rapid velocity being responded to a gamma ray of Neutron, and an ink composition comprising it.wherein, M1and M2are any one selected from a group consisted of a metal, a metal oxide or a metal halide respectively and may be same or different, R is a hydrogen atom, a halogen atom, a hydroxyl group, an amino group, a hydroxysulfonyl group, an aminosulfonyl group, or an alky group having a substituent group having from 1 to 20 carbon atoms, and n is an integer of 0˜3.

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