Built liquid bleaching compositions
US4151104A · kind A · utility
7Cited by
1References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 6, 1978 |
| Grant date | Apr 24, 1979 |
| Priority date | — |
| Expiry date | Feb 6, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D3/3956
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An aqueous bleaching composition having a pH from about 11 to 14, comprising an alkali metal hypochlorite, an alkali metal orthophosphate buffer, and an alkali metal pyrophosphate builder. The buffer increases the stability of the hypochlorite formulation to be comparable to a non-built composition of equal hypochlorite content despite the solution's increased ionic strength. The builder significantly aids in soil removal during laundering operations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.