Drycleaning method using dipropylene glycol dimethyl ether
US7144850B2 · kind B2 · utility
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13References
14Claims
0Family size
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Key dates
| Filing date | Aug 25, 2004 |
| Grant date | Dec 5, 2006 |
| Priority date | — |
| Expiry date | Oct 19, 2024 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06L1/02
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A drycleaning method is disclosed. In the method, a composition that comprises at least about 85 wt. % dipropylene glycol dimethyl ether (DMM) is used. The limited solubility of water in DMM is ideal for drycleaning. The method provides good stain removal and fast drying while avoiding excessive fabric shrinkage or soil redeposition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.