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US 8,845,761 B1Granted
Fluorescent whitening agent compositions
Assignee3V Sigma S.p.A.
InventorsCarlo Seccomandi, Ivan Balestra, Paolo Alioli
Life of this patent
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Abstract
Disclosed are compositions containing: a) 25-60% by weight of compound of formula (1) wherein X is hydrogen, an alkali or alkaline-earth metal, ammonium, alkylammonium and alkanolalkylammonium, alkanolammonium; b) at least 25% by weight of urea; c) up to 50% by weight of water.
Claims12
Compositions comprising:
- a) 25-60% by weight of the compound of formula (I)
- wherein X is hydrogen, an alkali or alkaline-earth metal, ammonium, alkylammonium and alkanolalkylammonium, alkanolammonium;
- b) at least 25% by weight of urea;
- c) up to 50% by weight of water.
1 more element
Dependencies are inferred from the claim text.