Bleach composition containing weakly to non-colored porphine pho

Details Bleach composition containing weakly to non-colored porphine pho Bleach composition containing weakly to non-colored porphine pho

1981-12-16

1983-08-23

Clingman, A. Lionel

Bleaching and dyeing; fluid treatment and chemical modification

Bleaching

Chemical

8101, 8103, 252 86, 252 95, 26024572, 26024585, 26024586, C11D 339, D06L 304

Patent

active

044001738

ABSTRACT:
Bleach compositions comprising a weakly coloring to non-coloring porphine photo-activator and process for bleaching substrates or liquids using said porphine photo-activator are disclosed. The porphine photo-activator used and as defined herein is selected such that the lowest energy allowed electronic transition of the photo-activator molecule gives rise to an absorption band (Q band) with maximum intensity at a wavelength greater than 700 nm.

REFERENCES:
patent: 3927967 (1975-12-01), Speakman
patent: 3927967 (1975-12-01), Speakman
patent: 4033718 (1977-07-01), Holcombe et al.
patent: 4077768 (1978-03-01), Johnston et al.
patent: 4166718 (1979-09-01), Reinert et al.
patent: 4217105 (1980-08-01), Goodman
patent: 4240920 (1980-12-01), de Luque
patent: 4255273 (1981-03-01), Sakkab
patent: 4256597 (1981-03-01), Sakkab
patent: 4256598 (1981-03-01), Sakkab
patent: 4311605 (1982-01-01), Eckhardt et al.

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