Process for removing contaminants, in particular material residues, in poorly accessible machine parts
US5254175A · kind A · utility
2Cited by
6References
3Claims
0Family size
Inventor
Key dates
| Filing date | Jul 18, 1990 |
| Grant date | Oct 19, 1993 |
| Priority date | — |
| Expiry date | Jul 18, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D17/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A cleaning agent for cleaning poorly accessible machine parts in transport or molding of materials in a pasty state, in particular for removal of molding material residues on changeover of the materials. The cleaning agent contains either inorganic salt or organic salt in solution with at least one of either an inorganic solvent and a polar organic solvent. A melting point of the inorganic salt or organic salt is above a processing temperature of the subsequent material. A boiling point of the inorganic solvent or the polar organic solvent is below a processing temperature of the subsequent material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.