发明授权
US4028412A Novel chelate formers 失效
新型螯合物

Novel chelate formers
摘要:
Benzoin oximes of the formula ##STR1## wherein R.sup.1 is alkyl of 3 to 16 carbon atoms, alkenyl of 3 or 4 carbon atoms, 3,7-dimethyl-2,6-octadienyl-1, or -A-S-R.sup.4 ; R.sup.2 and R.sup.3 independently are H, methyl or chlorine; R.sup.4 is alkyl or 1 to 8 carbon atoms; and A is alkylene of 3 or 4 carbon atoms, are chelating agents for copper.
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