Thickened aqueous prewash composition
US4648987A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 13, 1985 |
| Grant date | Mar 10, 1987 |
| Priority date | — |
| Expiry date | Feb 13, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D3/3418
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An aqueous laundry prewash composition includes a cosurfactant system with a hydrophobic nonionic surfactant and a hydrophilic nonionic surfactant providing balanced detergency, a hydrotrope for stabilizing the cosurfactant system, a thickener and water forming the balance of the composition. A thickened aqueous laundry prewash composition is also disclosed including a surfactant system, water and a thickener being xanthan gum to develop a pourable product wherein shear caused by dispensing of the composition tends to reduce its viscosity. An aqueous laundry prewash composition thickened in a similar manner maintains in suspension an insoluble particle component to further enhance prewash characteristics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.