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Class Information
Number:
534/DIG.7
Name:
Organic compounds -- part of the class 532-570 series
> Automatic and/or continuous temperature control in the preparation of azo compounds
Description:
Patents under this class:
Patent Number
Title Of Patent
Date Issued
4994561
Process for the preparation of metallizable azo dyes carrying out coupling in an inert gas atmosphere in the presence of an ammonium salt
Feb. 19, 1991
4677200
Amino compounds derived from 5-acetoacetylamino-benzimidazolones
Jun. 30, 1987
4454067
Continuous production of azo pigments
Jun. 12, 1984
4432770
Rapid dyeing of polyester fibers with a mixture of disperse dyes
Feb. 21, 1984
4252718
Continuous azo coupling process
Feb. 24, 1981
4190578
Dialysis monitored preparation of metal salts of azo pigments
Feb. 26, 1980
4018751
Continuous process for aminoazobenzene
Apr. 19, 1977
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