Stable alkyl and/or aryl silyl ether capped polyether surfactants for liquid cleaning agents containing hypohalite bleaches
US5073286A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 20, 1989 |
| Grant date | Dec 17, 1991 |
| Priority date | — |
| Expiry date | Nov 20, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D3/3738
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An alkyl and/or aryl silyl ether capped polyether surfactant useful in cleaning compositions. The polyether is described in conjunction with automatic dishwashing detergent composition having improved chlorine bleach stability comprising: PA0 (a) an active chlorine containing compound selected from the group consisting of chlorinated trisodium phosphate, chlorinated cyanuric acid and alkali metal salts thereof, 2,3-dichloro-5,5-dimethylhydantoin, hypochlorite bleach and mixtures thereof to yield available chlorine in an amount of from about 0.1 percent to 5 percent; PA0 (b) about 0.1 percent to 5 percent of a chlorine bleach stable nonionic surfactant having the general formula: EQU Y[A.sub.1 O).sub.n (A.sub.2 O.sub.m (A.sub.3 O).sub.p (X).sub.q A.sub.4 ].sub.z PA0 wherein Y is the residue of an organic compound having from 1 to 8, preferably 1 to 4, reactive hydrogens as measured by the Zerevitinov determination method; z is a number from 1 to 8, A.sub.1, A.sub.2 and A.sub.3 are C.sub.2 to C.sub.4 alkylene groups, tetramethylene, and mixtures thereof; n+m+p are numbers such that the total molecular weight of the uncapped portion of the molecule is from about 500 to 25,000 and the …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.