Polymers and laundry detergent compositions containing them
US7160947B2 · kind B2 · utility
9Cited by
8References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 11, 2003 |
| Grant date | Jan 9, 2007 |
| Priority date | — |
| Expiry date | Dec 11, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F290/062
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Graft copolymers providing soil release benefits in laundry detergent compositions contain backbone units derived from an ethylenically unsaturated monomer, hydrophilic uncharged side chains, and cationically chargeable or charged side chains containing a tertiary or quaternary nitrogen atom. Preferred copolymers have a methacrylate backbone with polyethylene oxide and 2-dimethylaminoethyl methacrylate (DMAEMA) side chains. The graft copolymers may be prepared by radical polymerisation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.