Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1974-10-08
1976-10-12
Hines, Robert V.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
260552R, 260553R, 2605705P, 260462R, 252 475, 252 515R, C07C12717, C07C15707
Patent
active
039858022
ABSTRACT:
Oil soluble high molecular weight Mannich condensation products formed by reacting (1) high molecular weight alkyl-substituted hydroxy aromatic compounds whose alkyl-substituent has a number average molecular weight (Mn) from about 600-100,000, (2) a compound containing at least one HN < group, and (3) an aldehyde in the respective molar reactant ratio of 1:0.1-10:1.0-10, are highly efficient ashless type (metal free) dispersant-detergent lubricant oil addition agents. Lubricating oils containing these compositions provide a high degree of protection against the deposition of sludge and varnish and corrosion when used as crankcase lubricants. Bis-Mannich products prepared by condensing (1) a 850-2500 Mn polyalkyl-substituted phenol, (2) an alkylene polyamine and (3) formaldehyde in the respective molar ratio of 1.0:0.7-1.0:1.5-2.1 are novel products and are especially effective for high severity detergent-dispersant function over the extended oil drain range of crankcase lubricant oils recommended by automobile manufacturers.
REFERENCES:
patent: 1963762 (1934-06-01), Pungs et al.
patent: 2353192 (1944-07-01), Sargent et al.
patent: 2353491 (1944-07-01), Oberright
patent: 2363134 (1944-11-01), McCleary
patent: 2403453 (1946-07-01), Otto
patent: 3036003 (1962-05-01), Verdol
patent: 3368972 (1968-02-01), Otto
patent: 3449362 (1969-06-01), Lee
patent: 3725277 (1973-04-01), Worrel
patent: 3726882 (1973-04-01), Traise et al.
patent: 3736357 (1973-05-01), Piasek et al.
patent: 3787458 (1974-01-01), Piasek et al.
patent: 3787492 (1974-01-01), Lee
patent: 3798247 (1974-03-01), Piasek et al.
patent: 3859351 (1975-01-01), Keller et al.
patent: 3872019 (1975-03-01), Culbertson et al.
Karll Robert E.
Piasek Edmund J.
Ahlers Fred R.
Gilkes Arthur G.
Hines Robert V.
McClain William T.
Standard Oil Company (Indiana)
LandOfFree
Lubricating oils containing high molecular weight Mannich conden does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Lubricating oils containing high molecular weight Mannich conden, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lubricating oils containing high molecular weight Mannich conden will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-942263