Suds suppressor compositions and their use in detergent compositions
US4732694A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 2, 1986 |
| Grant date | Mar 22, 1988 |
| Priority date | — |
| Expiry date | Jul 2, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S516/931
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A suds suppressor composition comprising, as suds-suppressor, a blend of: PA0 (i) a high shear mix of polydimethylsiloxane (PDMS) and hydrophobic silica, the PDMS having a viscosity of from about 20 to about 12,500 cs, and PA0 (ii) PDMS having a viscosity of at least about 25,000 cs wherein the blend has a viscosity of at least about 18,000 cs, the suds suppressor being dispersed in a water-soluble or water-dispersible organic carrier comprising: PA0 (i) from about 1% to about 100% of a first carrier component melting in the range of about 38.degree. C. to about 90.degree. C. and PA0 from 0% to about 99% of a second carrier component which is an ethoxylated nonionic surfactant melting in the range from about 5.degree. C. to about 36.degree. C. The compositions are particularly suitable in high-active containing heavy duty detergent compositions and provide improved foam regulation across the range of wash temperature, product usage, soil, load and rinsing conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.