Amine alkoxylate compositions and their use as lubricant additives
Provided are compositions and their use as dispersant and/or detergent additives for lubricants. The compositions comprise an amine alkoxylate of the formula I: (I) wherein R 1 -R 7 , R 1 ′-R 7 ; x, x′, A, A′ and A″ are as defined herein.
1. A composition comprising an amine alkoxylate of formula I:
wherein R 1 -R 7 and R 1′ -R 7′ are independently hydrogen or hydrocarbyl groups; x and x′ are independently 0 (a covalent bond) or an integer in the range of 1-10, and if x or x′ is greater than 1, then R 1 and R 1′ are the same or different; and A, A′ and A″ are independently alkoxylate homopolymer or copolymer chains where the alkyl of the alkoxylate units is independently selected from CH 2 CH 2 , CH 2 CH(CH 3 ), CH(CH 3 )CH 2 , CH 2 CH(CH 2 CH 3 ), or CH(CH 2 CH 3 )CH 2 groups.
2. The composition of claim 1 , comprising an amine alkoxylate having the following structure:
wherein R 1 -R 7 and R 1′ -R 7′ are independently hydrogen or hydrocarbyl groups;
x and x′ are independently 0 (a covalent bond) or an integer in the range of 1-10, and if x or x′ is greater than 1, then R 1 and R 1′ are the same or different;
y y′, or y″ are independently an integer ranging from 0 to 250; and
R 8 R 8′ , R 8″ , R 9 , R 9′ , and R 9″ are independently CH 2 CH 2 , CH 2 CH(CH 3 ), CH(CH 3 )CH 2 , CH 2 CH(CH 2 CH 3 ), or CH(CH 2 CH 3 )CH 2 , wherein if y y′, or y″ is greater than 1, then each corresponding R 9 , R 9′ , or R 9″ is the same or different and in the event they are different they may be in random or block configuration.
3. The composition of claim 1 wherein R 1 -R 7 and R 1′ -R 7′ are independently hydrogen or linear or branched C 1 -C 6 alkyl.
4. The composition of claim 1 wherein R 1 -R 7 and R 1′ -R 7′ are each hydrogen.
5. The composition of claim 1 wherein the amine alkoxylate is of the formula II:
wherein R 1 -R 3 and R 1′ -R 3′ are independently hydrogen or linear or branched C 1 -C 6 alkyl; x and x′ are independently 0 (a covalent bond) or an integer in the range of 1-10 (preferably they are 0 or 1-4), and if x or x′ is greater than 1, then R 1 and R 1′ are the same or different; and A, A′ and A″ are as defined for formula I.
6. The composition of claim 5 wherein the amine alkoxylate is of the formula II′:
wherein R 1 -R 3 and R 1′ -R 3′ are independently hydrogen or linear or branched C 1 -C 6 alkyl; x and x′ are independently 0 (a covalent bond) or an integer in the range of 1-10, and if x or x′ is greater than 1, then R 1 and R 1′ are the same or different; y y′, or y″ are independently an integer ranging from 0 to 250; and R 8 R 8′ , R 8″ , R 9 , R 9′ , and R 9″ are independently CH 2 CH 2 , CH 2 CH(CH 3 ), CH(CH 3 )CH 2 , CH 2 CH(CH 2 CH 3 ), or CH(CH 2 CH 3 )CH 2 , wherein if y y′, or y″ is greater than 1, then each corresponding R 9 , R 9′ , or R 9″ is the same or different and in the event they are different they may be in random or block configuration.
7. The composition of claim 2 wherein R 8 , R 8′ , R 8″ , R 9 , R 9′ , and R 9″ are independently CH 2 CH(CH 3 ) or CH(CH 3 )CH 2 .
8. The composition of claim 1 wherein the amine alkoxylate has a number average molecular weight ranging from 280 to 10,000 g/mol.
9. The composition of claim 1 further comprising an amine alkoxylate of formula III:
wherein R 1 -R 7 and R 1′ -R 7′ are independently hydrogen or hydrocarbyl groups;
x and x′ are independently 0 (a covalent bond) or an integer in the range of 1-10, and if x or x′ is greater than 1, then R 1 and R 1′ are the same or different;
y y′, or y″ are independently an integer ranging from 0 to 250; and
R 8 R 8′ , R 8″ , R 9 , R 9′ , and R 9″ are independently CH 2 CH 2 , CH 2 CH(CH 3 ), CH(CH 3 )CH 2 , CH 2 CH(CH 2 CH 3 ), or CH(CH 2 CH 3 )CH 2 , wherein if y y′, or y″ is greater than 1, then each corresponding R 9 , R 9′ , or R 9″ is the same or different and in the event they are different they may be in random or block configuration.
10. A lubricant formulation comprising:
a base oil; and
a performance additive comprising the composition of claim 1 .
11. A method for providing dispersancy, detergency, or both to a lubricant formulation for use in a fuel burning engine, the method comprising: including in the lubricant formulation the composition of claim 1 .