| abstract |
1,127,784. Polyether lubricating compositions. OLIN MATHIESON CHEMICAL CORP. 2 Nov., 1965 [5 Nov., 1964], No. 46364/65. Heading C3R. [Also in Division C5] A lubricant comprises 20-50% of (A) a compound of formula where R<SP>a</SP> is (1) (OC n H 2n ) z OH, where n is 2-4, z is 1-25 with the proviso that when n is 2, z is 1-5 or (2) a heteric polymeric chain of oxyethylene units and oxyalkylene units derived from propylene or butylene oxide, said chain terminating in an hydroxyl group and containing not more than 40 oxyalkylene units, the oxyethylene units forming 5-65 wt. per cent of the chain; R<SP>b</SP> is hydrogen or C 1 -C 20 alkyl; R<SP>c</SP> hydrogen, C 1 -C 20 alkyl or as R<SP>a</SP> above; R<SP>d</SP> is hydrogen or as R<SP>a</SP> above or (B) a compound of formula where R<SP>a</SP> is as above and 50-80% of at least one diluent consisting of (1) a glycol of formula where R<SP>e</SP> is a C 2 or C 3 alkylene and p is 1-3 or (2) a glycol ether of formula R<SP>f</SP>O(R<SP>g</SP>O) m H, where R<SP>f</SP> is C 1 -C 6 alkyl, R<SP>g</SP> is C 2 or C 3 alkylene and m is 1-4. Component (A) is preferably prepared from nonyl phenol. The composition may also contain alkaline inhibitors, e.g. alkali metal borates, potassium oleate, potassium soaps of rosin and tall oil acids, morpholines, ethanolamines, mono- and di-butyl ammonium borates, dibutylamine phosphates, ethylene glycol condensate of potassium tetraborate, antioxidants, e.g. 2,2-di-(4-hydroxyphenyl)-propane, phenothiazine, polymerized trimethyldihydro-quinoline, phenyl-naphthylamines, dioctyl diphenyl-amine, dibutyl cresol, butylated 2,2 - di - (4 - hydroxy phenyl) propane, nbutylated amino phenol and butylated hydroxyanisole and various other additives, e.g. butynediol, dodecyl or tridecyl-benzene and water. |