Process for stain removal
US7513915B2 · kind B2 · utility
4Cited by
5References
41Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 23, 2006 |
| Grant date | Apr 7, 2009 |
| Priority date | — |
| Expiry date | Dec 7, 2026 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D7/34
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Disclosed are processes whereby stains on a variety of substrates may be removed by treating a stained area of a substrate with a solution of a sulfonamide compound. The sulfonamide-containing solutions are particularly useful as stain removal agents for stains which originate with body fluids such as blood, urine, vomit, feces etc. The stain removal solutions may be buffered to a predetermined pH. The stain removal solutions may further incorporate small percentages of low molecular weight alcohols and wetting agents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.