US 12,187,980 B2
Polymeric cleaning booster
Asghar A. Peera, Royersford, PA (US); Stephen J. Donovan, Sellersville, PA (US); and Roy Roberts, Bristol, PA (US)
Assigned to Dow Global Technologies LLC, Midland, MI (US); and Rohm and Haas Company, Collegeville, PA (US)
Appl. No. 17/606,275
Filed by Dow Global Technologies LLC, Midland, MI (US); and Rohm and Haas Company, Collegeville, PA (US)
PCT Filed May 28, 2020, PCT No. PCT/US2020/034806
§ 371(c)(1), (2) Date Oct. 25, 2021,
PCT Pub. No. WO2020/251767, PCT Pub. Date Dec. 17, 2020.
Claims priority of provisional application 62/861,477, filed on Jun. 14, 2019.
Prior Publication US 2022/0213408 A1, Jul. 7, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. C11D 1/00 (2006.01); C08F 20/06 (2006.01); C11D 1/38 (2006.01); C11D 11/00 (2006.01)
CPC C11D 1/008 (2013.01) [C08F 20/06 (2013.01); C11D 1/38 (2013.01); C11D 11/0094 (2013.01); C11D 2111/12 (2024.01)] 8 Claims
 
1. A liquid laundry additive, comprising:
a cleaning booster polymer, comprising:
50 to 95 wt %, based on dry weight of the cleaning booster polymer, of structural units of a monoethylenically unsaturated carboxylic acid monomer;
5 to 50 wt %, based on dry weight of the cleaning booster polymer, of structural units of an ethylenically unsaturated monomer of formula (I)

OG Complex Work Unit Chemistry
wherein a is an average of 1-3; wherein b is 1; wherein c is 0; wherein d is 4-100; wherein A is an anion (preferably, a SO3− or a PO32−; more preferably, SO3−); and wherein M is an NH4+ charge balancing the anion; and
0 to 20 wt %, based on dry weight of the cleaning booster polymer, of structural units of an ethylenically unsaturated monomer of formula (II)

OG Complex Work Unit Chemistry
wherein each R2 is independently selected from a —C1-4 alkyl group; and wherein each R3 is independently selected from the group consisting of a hydrogen and a methyl group.