Composition for use in cleaning metal components
US11788036B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 17, 2021 |
| Grant date | Oct 17, 2023 |
| Priority date | — |
| Expiry date | Mar 17, 2042 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D2111/16
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A composition for use in cleaning metal components having Hansen Solubility Parameters for the composition of δD≥15, δP<6, and δH from about 5.5 to about 6.9. The composition includes a blend of organic solvents, none of which are classified as a volatile organic compound, a hazardous air pollutant, or a potential carcinogen, or exhibit a vapor pressure of less than 0.1 mmHg at 20° C. Further, the blend of organic solvents includes a halogenated aromatic solvent having one or more halide groups and from 6 to 8 carbon atoms, an organic solvent having one or more ester functional group and from 3 to 9 carbon atoms, and one or more of a linear or branched hydrocarbon solvent with 6-12 carbon atoms with a single polar moiety head group or a solvent containing one or more ketone functional groups and from 2 to 5 carbon atoms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.