Methods of using a soil release polymer in a prewash composition
US10377979B2 · kind B2 · utility
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21References
8Claims
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Assignee
Inventors
Key dates
| Filing date | Jan 3, 2018 |
| Grant date | Aug 13, 2019 |
| Priority date | — |
| Expiry date | Jan 3, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D2111/44
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention provides methods of cleaning including the use of a soil release polymer. In some embodiments, the soil release polymer can be included in a neutral to low alkalinity prewash or main wash that is substantially free of hydroxide-based alkalinity. In some embodiments, the soil release polymer can be included in a neutral to low alkalinity prewash that is substantially free of hydroxide-based alkalinity, followed by an alkaline main wash with any alkalinity source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.