Compositions – Heat-exchange – low-freezing or pour point – or high boiling... – Organic components
Patent
1975-06-10
1977-11-01
Pitlick, Harris A.
Compositions
Heat-exchange, low-freezing or pour point, or high boiling...
Organic components
260928, 260929, 260930, C10M 340, C10M 338
Patent
active
040564800
ABSTRACT:
Improved hydraulic fluids contain at least one compound represented by the structure: ##STR1## where Q.sub.1 is --0--R.sub.1 or ##STR2## Q.sub.2 is --O--R.sub.4 or ##STR3## Q.sub.3 is --O--R.sub.7 or ##STR4## and Q.sub.4 is --O--R.sub.10 or ##STR5## R is selected from the group consisting of non-phenolic ether residue, non-phenolic thioether residue, non-phenolic polyether residue, linear alkyl, branched alkyl, cyclic alkyl, substituted cyclic alkyl, cycloalkyl, substituted cycloalkyl and non-phenolic alkyl-aryl, containing from 1 to 16 carbon atoms; provided that the --O--R--O-- portion of the structure is non-phenolic; R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, R.sub.7, R.sub.8, R.sub.9, R.sub.10, R.sub.11 and R.sub.12 are individually selected from the group consisting of linear alkyl, branched alkyl, cyclic alkyl, non-phenolic alkylaryl or substituted cyclic alkyl, containing from 1 to 12 carbon atoms and can be the same or different in any combination; R.sub.2 and R.sub.3 together can form a heterocyclic ring optionally interrupted by hetero atoms selected from the group consisting of oxygen, sulfur and nitrogen; R.sub.5 and R.sub.6 together can form a heterocyclic ring optionally interrupted by hetero atoms selected from the group consisting of oxygen, sulfur and nitrogen; R.sub.8 and R.sub.9 together can form a heterocyclic ring optionally interrupted by hetero atoms selected from the group consisting of oxygen, sulfur and nitrogen; R.sub.11 and R.sub.12 together can form a heterocyclic ring optionally interrupted by hetero atoms selected from the group consisting of oxygen, sulfur and nitrogen.
REFERENCES:
patent: 2632767 (1953-03-01), Smith et al.
patent: 2686760 (1954-08-01), Watson
patent: 2736737 (1956-02-01), Morris
patent: 2978478 (1961-04-01), Sandner et al.
patent: 3081331 (1963-03-01), Friedman
patent: 3954918 (1976-05-01), Hotten
Duffey William H.
Monsanto Company
Pitlick Harris A.
LandOfFree
Hydraulic fluids does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Hydraulic fluids, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydraulic fluids will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-6602