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US 4,599,090 AGranted
Method for preparing nitrogen- and oxygen-containing compositions useful as lubricant and fuel additives
AssigneeThe Lubrizol Corporation
InventorThomas F. Steckel
Life of this patent
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Abstract
Nitrogen- and oxygen-containing compositions prepared by reacting, in the presence of an acid catalyst, (A) at least one aliphatic hydroxy compound of the formula R.sup.1 (OH).sub.x wherein R.sup.1 is an aliphatic hydrocarbon-based radical and x is an integer which is at least 1, with (B) at least one (tertiary amino) alkanol useful as lubricant and fuel additives. Also disclosed are concentrates of these compositions and lubricants and fuels containing these compositions.
Claims43
A method for preparing nitrogen- and oxygen-containing compositions which comprises reacting, in the presence of an acidic catalyst,
- (A) at least one aliphatic hydroxy compound of the formula R.sup.1 (OH).sub.x wherein R.sup.1 is an aliphatic hydrocarbon-based radical and x is an integer which is at least 1, with
- (B) at least one (tertiary amino) alkanol;
- wherein the ratio of equivalents of reagents (A):(B) is in the range of about 1:100 up to about 100:1;
- wherein the amount of catalyst is in the range of about 0.01 up to about 20 based on the weight of the reaction mixture of (A) and (B);
- and wherein the reaction is conducted at a temperature from about 140.degree. C. up to just below the decompostion temperture of any component of the reaction mixture.
2 more elements
Dependencies are inferred from the claim text.