Translucent gel prespotting composition
US5538662A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 28, 1994 |
| Grant date | Jul 23, 1996 |
| Priority date | — |
| Expiry date | Oct 28, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S516/902
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Disclosed is a translucent prespotting composition containing a single phase liquid microemulsion at the processing temperature. The single phase microemulsion comprises a gelling agent, one or more surfactants, a water immiscible solvent or a mixture of water immiscible solvents which may contain no more than about 2 weight percent water at 25.degree. C. when the organic solvent is saturated with water in absence of surfactants or other additives, and water in amounts greater than about 15 percent by weight and less than about 60 percent by weight of the composition. The microemulsions before gelling or solidifying may be oil continuous, water continuous, or bicontinous.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.