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US 8,574,374 B2Granted
Formulations, their use as or for producing dishwashing compositions and their preparation
AssigneeBASF SE
InventorsStephan Hueffer, Alejandra Garcia Marcos, Markus Hartmann, Heike Weber
Life of this patent
Estimating the term…
Abstract
Formulations comprising (A) at least one compound selected from aminocarboxylates and polyaminocarboxylates, and salts and derivatives thereof, (B) at least one zinc salt, and (C) at least one homopolymer or copolymer of ethyleneimine.
Claims19
A formulation, comprising:
- (A) in total, from 1 to 50% by weight of at least one compound selected from the group consisting of methylglycine diacetate (MGDA) and the trisodium salt of MGDA,
- (B) in total, from 0.05 to 0.4% by weight of at least one zinc salt, given as Zn,
- (C) in total, 0.05 to 2% by weight of at least one homopolymer of ethyleneimine or copolymer of ethyleneimine, and
- (D) optionally, 0.5 to 15% by weight of bleach,
- based in each case on the solids content of said formulation.
2 more elements
A process for the preparation of a formulation, comprising:
- mixing, in one or more steps, the following components with one another in the presence of water
- (A) in total, from 1 to 50% by weight of at least one compound selected from the group consisting of methylglycine diacetate (MGDA) and the trisodium salt of MGDA,
- (B) in total, from 0.05 to 0.4% by weight of at least one zinc salt, given as Zn,
- (C) in total, 0.05 to 2% by weight of at least one homopolymer of ethyleneimine or copolymer of ethyleneimine,
- (D) optionally, 0.5 to 15% by weight of bleach,
- based in each case on the solids content of said formulation, and optionally, further ingredients, and
- then removing the water.
4 more elements
Dependencies are inferred from the claim text.