Bleaching and dyeing; fluid treatment and chemical modification – Treatment of hides – skins – feathers and animal tissues – Treatment of untanned skins or hides
Patent
1980-05-07
1982-09-07
Tungol, Maria Parrish
Bleaching and dyeing; fluid treatment and chemical modification
Treatment of hides, skins, feathers and animal tissues
Treatment of untanned skins or hides
8 9426, 8 9427, C14C 104, C14C 306
Patent
active
043482015
ABSTRACT:
A tanning process comprising pickling a hide which has previously subjected to beamhouse works such as depilation if necessary, decalcification and beating, in the presence of urotropin and at least one tanning improver selected from chromium and aluminum salts as well as from phenolic compounds, organic compounds containing nitrogen and sulphur or halogen atoms, organic carboxylic acids, organotin compounds, copper compounds and arsenic compounds.
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patent: 3482925 (1969-12-01), Schmid et al.
patent: 3521990 (1970-07-01), Schmid et al.
patent: 3870464 (1975-03-01), Briggs
patent: 4211529 (1980-07-01), Spahrkas et al.
Adachi Mitsuji
Hayashi Saburo
Isono Teizo
Mizutani Mochifumi
Okabe Tohru
Seitetsu Kagaku Co., Ltd.
Tungol Maria Parrish
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