Surfactant compositions
US4983323A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 12, 1989 |
| Grant date | Jan 8, 1991 |
| Priority date | — |
| Expiry date | Apr 12, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D1/29
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A composition for use in formulating detergents containing water, a neutral salt thixotrope and a water-soluble salt of an ether sulfate having the formula EQU [R-A.sub.n O-SO.sub.3 ].sub.x M wherein R is a hydrocarbon group containing from about 4 to about 30 carbon atoms, A is an oxyalkylene group selected from the group consisting of oxyethylene, oxypropylene, oxybutylene, oxytetramethylene and heteric and block mixtures thereof, n is an integer from 1 to 8 and M is a cation of a water-soluble salt, and wherein at least about 85% by weight of said ether sulfate has a number average oxyalkylene number of p-2 to p+3, wherein p represents the number of oxyalkylene groups of the most prevalent oxyalkylate species, and x is 1 or 2 depending on the valence of M.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.