Bleaching and dyeing; fluid treatment and chemical modification – Treatment of hides – skins – feathers and animal tissues – Tanning
Patent
1977-01-24
1978-07-18
Clingman, A. Lionel
Bleaching and dyeing; fluid treatment and chemical modification
Treatment of hides, skins, feathers and animal tissues
Tanning
8DIG7, 8 41R, 260 304N, 260879, 526 91, 526 93, 5262321, 526259, 526263, 526264, 526265, 526266, 526284, 526298, 528 86, D06P 300, D06P 500
Patent
active
041012690
ABSTRACT:
Structurally dyed random polymers and copolymers characterized in that their chain comprises a dye of the formula: ##STR1## wherein the residue --CH.dbd.CH--CN is fixed in position 4 or 5, X represents a hydrogen or halogen atom, the benzene ring A can be substituted by halogen atoms, alkyl, alkoxy or acylamino groups, m represents 0 or 1 and B represents the residue of a coupling component, either substituted or unsubstituted and which is free of sulfonic or carboxylic acid groups. Such dyed polymers and copolymers are intensely dyed and useful for making yarns, molded articles, varnishes, synthetic resins, synthetic fibers, and the like. The dye forms an integral part of the chain structure of the polymers and copolymers.
REFERENCES:
patent: 3503087 (1970-03-01), Wolf et al.
patent: 3557048 (1971-01-01), Wilhelm et al.
patent: 3594110 (1971-07-01), Happe et al.
patent: 3627472 (1971-12-01), Parsons et al.
patent: 3637581 (1972-01-01), Horiguchi et al.
Clingman A. Lionel
Produits Chimiques Ugine Kuhlmann
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