| 摘要 |
1,249,133. Lubricants. EASTMAN KODAK CO. 27 Sept., 1968 [29 Sept., 1967], No. 45957/68. Heading C5F. [Also in Division F2] A lubricant comprises a C 3 -C 13 ketone and a diester. The lubricant is preferably a phthalate diester having 6 to 18 carbon atoms in each ester group (e.g. diisodecylphthalate) and the ketone may be acetone, methyl ethyl ketone or methyl isobutyl ketone. Other lubricants which may be used are dioctyl phthalate, didodecyl phthalate, dihexadecyl phthalate, octyldecylphthalate. |
