Deposition aid polymer for laundry
A deposition aid polymer for laundry is provided, comprising >50 to 99 wt % of structural units of formula (I) wherein R 1 is selected from hydrogen, —C 1-4 alkyl and —CH 2 OR 3 ; wherein R 3 is selected from —C 1-12 alkyl and phenyl; and 1 to <50 wt % of structural units of formula (II) wherein R 2 is selected from a moiety of Formula (III), a moiety of Formula (IV) and a moiety of Formula (V) wherein A − is a counter anion balancing the cationic charge on the N; wherein R 4 is selected from hydrogen, —C 1-12 alkyl and phenyl; and wherein R 5 is selected from hydrogen and —C 1-8 alkyl; wherein the deposition aid polymer has a weight average molecular weight of <100,000 Daltons; and with the proviso that the deposition aid polymer has an average of at least two structural units of formula (II) per molecule.
1. A deposition aid polymer for laundry, comprising:
(a) 82 to 96 wt %, based on weight of the deposition aid polymer, of structural units of formula (I)
wherein each R 1 is independently selected from the group consisting of a hydrogen and a methyl group; and
(b) 4 to 18 wt %, based on weight of the deposition aid polymer, of structural units of formula (II)
wherein each R 2 is independently selected from the group consisting of a moiety of Formula (III) and a moiety of Formula (IV)
wherein A − is a counter anion balancing the cationic charge on the N; wherein each R 4 is a methyl group;
wherein the deposition aid polymer contains no more than 0.01 wt %, based on weight of the deposition aid polymer, of azetidinium moieties, epoxide moieties, carboxylic acid moieties, carbonyl moieties and halomethyl moieties;
wherein the deposition aid polymer has a weight average molecular weight of 5,000 to 30,000 Daltons; and
with the proviso that the deposition aid polymer has an average of 2.5 to 300 structural units of formula (II) per molecule.
2. The deposition aid polymer of claim 1 ,
wherein each R 1 is a hydrogen; and
wherein each R 2 is a moiety of Formula (IV).
3. The deposition aid polymer of claim 1 , with the proviso that the deposition aid polymer has an average of 3 to 50 structural units of formula (II) per molecule.
4. The deposition aid polymer of claim 1 , with the proviso that the deposition aid polymer has an average of 3 to 20 structural units of formula (II) per molecule.
5. The deposition aid polymer of claim 1 , with the proviso that the deposition aid polymer has an average of 3.5 to 15 structural units of formula (II) per molecule.
6. The deposition aid polymer of claim 1 , wherein each R 2 is a moiety of Formula (III).
7. The deposition aid polymer of claim 6 , with the proviso that the deposition aid polymer has an average of 3 to 50 structural units of formula (II) per molecule.
8. The deposition aid polymer of claim 6 , with the proviso that the deposition aid polymer has an average of 3 to 20 structural units of formula (II) per molecule.
9. The deposition aid polymer of claim 6 , with the proviso that the deposition aid polymer has an average of 3.5 to 15 structural units of formula (II) per molecule.