Detergent polymer and composition
AssigneeItalmatch Chemicals S.P.A.
InventorsFrédéric BRUYNEEL, Fabio COSTINITI, Diego BOSCARDIN, Eric KOAY, Ruggero SALA
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Abstract
The present invention refers to a novel polymer that possesses metal ion removal properties, compositions comprising it, its use in cleaning application and the process for its manufacture. The present invention also relates to an improved the process for the manufacturing of known polymer as well, and the use of these known polymers in cleaning applications.
Claims16
An aspartic acid/N-hydroxyaspartamide/succinimide polymer and/or its salts, wherein said polymer comprises non-hydrolyzed succinimide units.
A process for the preparation of an aspartic acid/N-hydroxyaspartamide/succinimide derived polymer and/or its salts, comprising the following steps:
- a′) providing a solution of a salt of hydroxylamine;
- b′) adding poly-succinimide to said solution of step a′), whereby allowing the reaction of said poly-succinimmide with said salt of hydroxylamine;
- and
- c′) adding basic reagents in one step or in more than one step after addition of said poly-succinimide in step b′) is over;
- wherein said process is carried out by controlling the ring opening of said poly-succinimide so that said polymer resulting from step c′) does not comprise non-hydrolyzed succinimide units.
Dependencies are inferred from the claim text.