FIELD: cover materials.
SUBSTANCE: invention relates to a composition comprising perfluoropolyester with acid terminal group and a solvent. As a solvent the composition comprises azeotropic mixture of fluorocarbon and fluorochlorohydrocarbon in the following ratio of components, wt.-%: perfluoropolyester, 0.1-1.0, and azeotropic mixture 99.0-99.9. As a fluorocarbon the azeotropic mixture comprises mixture of trans- and cis-isomers of perfluoro-(4-methylpentene-2) and as a fluorochlorohydrocarbon it comprises 1-fluoro-1,1-dichloroethane in the following ratio of components, wt.-%: mixture of trans- and cis-isomers of perfluoro-(4-methylpentene-2), 43.3, and 1-fluoro-1,1-dichloroethane, 56.7. Invention provides enhancing wear-resistance of surface to be treated and providing the more uniform cover.
EFFECT: improved properties of composition.
1 tbl, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| FORMULATION FOR CLEANING SURFACES FROM OIL-AND-FAT POLLUTIONS | 2005 |
|
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| COMPOSITION FOR CLEANING SURFACES FROM FAT-AND-OIL IMPURITIES | 2008 |
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|
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| PROCESS FOR INTEGRATED PRODUCTION OF FLUOROCARBONS | 2001 |
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| METHOD FOR TREATING RAZOR BLADES | 1997 |
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| COMPOSITION FOR TREATMENT OF BOTTOM-HOLE FORMATION ZONE | 2001 |
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