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US4115404A Benzodifuran dyestuffs 失效
Benzodifuran染料

Benzodifuran dyestuffs
摘要:
Substituted 2,6-dioxo-2,6-dihydrobenzo[1:2-b, 4:5-b.sup.1 ]difurans or -dipyrroles and processes for their manufacture. The compounds are dyestuffs which are particularly useful in the form of aqueous dispersions for application to polyester textile materials.
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