Sterically hindered polyether polyols as chlorine bleach stable surfactants
US4913833A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 9, 1988 |
| Grant date | Apr 3, 1990 |
| Priority date | — |
| Expiry date | Jun 9, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D1/722
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Cleaning compositions, especially liquid detergent compositions containing chlorine bleach, are disclosed. The compositions include a chlorine bleach stable nonionic surfactant which is a mixture of the formula EQU y[A.sub.1 O).sub.n (A.sub.2 O).sub.n' (A.sub.3 O).sub.n' H].sub.m wherein A.sub.1 and A.sub.2 are C.sub.2 -C.sub.4 alkylene groups, tetramethylene and mixtures thereof, A.sub.3 is a sterically hindered C.sub.4 -C.sub.30 alkylene group, C.sub.4 -C.sub.30 arylalkylene group, and mixtures thereof, n+n'=a value such that the total molecular weight of the uncapped portion of the molecule is about 500 to 25,000, n" is a number from 1 to 8, m is a number from 1 to 8, and Y is the residue of an organic compound having from about 1 to 30 carbon atoms and at least 1 reactive hydrogen atom. The surfactant has a hydrophilic content of from about 5 to 40 weight percent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.