Catalytic bleaching with chlorites
United States Patent 2477631

Inventors:
Levy, Robert M.
Brennan, James E.
Publication Date:
08/02/1949
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Assignee:
ECUSTA PAPER CORP
Primary Class:
162/87
Other Classes:
8/108.100, 162/79, 252/187.230
International Classes:
D06L3/08; D21C9/14; D06L3/00; D21C9/10
US Patent References:
2249646Bleaching cellulose with titanium compounds
2353823Bleaching cellulosic materials
2367771Bleaching cellulosic materials
Foreign References:
GB260190A
GB311435A
FR722871A