Detergent compositions containing polyethyleneimines for enhanced stain removal
US5904735A · kind A · utility
52Cited by
28References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 4, 1997 |
| Grant date | May 18, 1999 |
| Priority date | — |
| Expiry date | Aug 4, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D3/3723
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Detergent compositions, essentially free of peroxygen or chlorine bleach compounds, containing a surfactant, builder, enzyme and from about 0.001% to about 5% by weight polyethyleneimine (PEI) or salts thereof are disclosed. These compositions provide enhanced removal of organic stains, particularly on polyphenolic stains such as morello juice (cherry juice), blueberry juice, red wine, tea and coffee. Improvement was also demonstrated on certain non-polyphenolic stains such as grass.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.