Soil release polymer in a solid sour
US10533147B2 · kind B2 · utility
1Cited by
10References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 9, 2014 |
| Grant date | Jan 14, 2020 |
| Priority date | — |
| Expiry date | Nov 6, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D17/0086
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Applicants have developed a physically and chemically stable solid composition containing a soil release polymer and an acidulant. The sour step thus accomplishes both stain removal and residual alkalinity removal. A novel method of using a soil release polymer and an acidulant together in the same post wash step of a laundry wash process is also disclosed. The solid composition is physically stable, even during aqueous dispensing, i.e. non-slumping and non-weeping. The solid could be formed through a melt, cast, or pressed process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.