Amine alkoxylate compositions and their use as lubricant additives

Patent metadata

Field	Value
Publication number	US-9822324-B2
Application number	US-201314429102-A
Country	US
Kind code	B2
Filing date	Oct 15, 2013
Priority date	Oct 24, 2012
Publication date	Nov 21, 2017
Grant date	Nov 21, 2017

Abstract

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.

First claim

The invention claimed is:

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 .

Assignees

• Dow Global Technologies Llc

Inventors

• Pierre Cynthia
• King Stephen W
• Aguilar Daniel A
• Jazdzewski Brian A
• Cuthbert John B
• Elowe Paul R
• Bharadwaj Ashwin R

Classifications

• C10N2030/04

  Detergent property or dispersant property · CPC title

• C10M2215/064

  Di- and triaryl amines · CPC title

• C10M2223/047

  Thioderivatives not containing metallic elements · CPC title

• C10M2207/026

  with tertiary alkyl groups · CPC title

• C10N2030/041

  Soot induced viscosity control · CPC title