C - Chemistry – Metallurgy – 09 – B
Patent
C - Chemistry, Metallurgy
09
B
31/105, 260/196,
C09B 47/04 (2006.01) B41M 5/30 (2006.01) C07C 255/49 (2006.01) C09B 47/067 (2006.01) C09K 19/32 (2006.01) G11B 7/248 (2006.01)
Patent
CA 2030392
6-17839/- Substituted naphthalocyanines and their use Abstract Compounds of the formula I Image (I), in which R is the group Image and M is two H or is Cu or Ni, R1 is -OH, -Cl, -Br, C1-C30alkoxy or -OC(O)R2, m is an integer from 2 to 6 and n is a number from 1 to 20, and R2 is C1-C20alkyl, C2-C20alkenyl, cyclopentyl, cyclohexyl or C6-C10aryl or C6-C10arylmethyl which is unsubstituted or substituted by Cl-C18alkyl. The compounds are dyes and IR absorbers and can be used for optical information storage systems employing diode lasers.
Baumann Marcus
Fischer Walter
Mizuguchi Jin
Stricker Hanspeter
Vogt Jurgen
Ag Ciba-Geigy
Fetherstonhaugh & Co.
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