Fluorochlorohydrocarbon/phosphoric acid ester/carboxylic acid drying compositions
US4606844A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 22, 1985 |
| Grant date | Aug 19, 1986 |
| Priority date | — |
| Expiry date | Jan 22, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23G5/02819
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Surface treating compositions, e.g., for the removal of water therefrom, are comprised of (1) a solvent comprising at least 50% by weight of 1,1,2-trichloro-1,2,2-trifluoroethane and (2) a water-solubilizing additive therefor, said additive (2) comprising (i) at least one phosphoric acid ester of the general formula: ##STR1## in which Y is a radical of the formula --O--T--OC.sub.m H.sub.2m).sub.r OH, and Z is a radical Y or a hydroxyl group, (ii) at least one ester of the above formula (I), in which at least one phosphoric acid moiety has been neutralized with at least one amine salt of the general formula: ##STR2## and (iii) at least one carboxylic acid of the general formula: EQU R'--COOH (III).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.