IP Library Granted Patent US 11,292,953
Granted Patent B2
US 11,292,953 · App. 16/499,624 · Granted Apr 5, 2022

Method of producing hydroxyalkylcarbamate-functional polyamides and uses thereof

Inventors: Robert Carl Steves (The Woodlands, TX); John H. Clements (The Woodlands, TX); David C. Lewis (The Woodlands, TX)
Assignee: HUNTSMAN Petrochemical LLC
C09K8/36C08G73/1042
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Quick Facts
Patent No.
US 11,292,953
App. No.
16/499,624
Granted
Apr 5, 2022
Kind
B2
Abstract

A modified drilling fluid comprising a drilling fluid and the reaction product(s) of a polyalkylene polyamine, fatty acid, and alkylene carbonate, and methods of making and using the same.

Claims (39)

1. A modified drilling fluid, comprising:

a drilling fluid; and

a hydroxyalkylcarbamate-functional polyamide composition produced by:

reacting a polyalkylene polyamine and a fatty acid to form an amidoamine intermediate product, wherein the molar ratio of the polyalkylene polyamine to fatty acid ranges from 1:1.5 to 1:2.5; and

reacting the amidoamine intermediate product and an alkylene carbonate represented by formula (I) below:

wherein R 2 —R 5 are independently selected from i) hydrogen, ii) an alkyl group, and iii) a moiety comprising a hydroxyl, halide, aldehyde, ether, ester, carboxylic acid, epoxide, or a combination thereof.

2. The method of claim 1 , wherein the polyalkylene polyamine is a polyethylene polyamine selected from the group consisting of diethylenetriamine, triethylenetetramine, tetraethylenepentamine, pentaethylenehexamine, and combinations thereof.

3. The modified drilling fluid of claim 1 , wherein the fatty acid is represented by formula (III):

R 1 —C(O)OH (III) wherein R 1 is a saturated or unsaturated, branched or straight chain, substituted or unsubstituted hydrocarbyl group having from 6 to 24 carbon atoms.

4. The modified drilling fluid of claim 1 , wherein the fatty acid is derived from a fatty acid source selected from the group consisting of soybean oil, coconut oil, rapeseed oil, tall oil, and combinations thereof.

5. The modified drilling fluid of claim 1 , wherein the fatty acid is lauric acid, mystic acid, palmilitic acid, stearic acid, arachidic acid, behenic acid, oleic acid, linoleic acid, linolenic acid, or a combination thereof.

6. The modified drilling fluid of claim 1 , wherein the alkylene carbonate is represented by formula (I), wherein R 2 , R 3 , and R 5 are each hydrogen, and R 4 is selected from the group consisting of hydrogen, CH 3 , C 2 H 5 , and CH 3 OH.

7. The modified drilling fluid of claim 1 , wherein the drilling fluid is a water-in-oil invert emulsion drilling mud.

8. A method of producing a modified drilling fluid, comprising:

producing a hydroxylalkylcarbamate-functional polyamide comprising:

reacting a polyalkylene polyamine and a fatty acid to form an amidoamine intermediate product, wherein the molar ratio of the polyalkylene polyamine to fatty acid ranges from 1:1.5 to 1:2.5; and

reacting the amidoamine intermediate product and an alkylene carbonate, wherein the alkylene carbonate is represented by formula (I) below:

wherein R 2 —R 5 are independently selected from i) hydrogen, ii) an alkyl group, and iii) a moiety comprising a hydroxyl, halide, aldehyde, ether, ester, carboxylic acid, epoxide, or combinations thereof; and

mixing the hydroxyalkylcarbamate-functional polyamide with a drilling fluid.

9. The method of claim 8 , wherein the polyalkylene polyamine is a polyethylene polyamine selected from the group consisting of diethylenetriamine (DETA), triethylenetetramine (TETA), tetraethylenepentamine (TEPA), pentaethylenehexamine (PEHA), and combinations thereof.

10. The method of claim 8 , wherein the fatty acid is represented by formula (III):

R 1 —C(O)OH  (III)

wherein R 1 is a saturated or unsaturated, branched or straight chain, substituted or unsubstituted hydrocarbyl group having from 6 to 24 carbon atoms.

11. The method of claim 10 , wherein the fatty acid is derived from a fatty acid source selected from the group consisting of soybean oil, coconut oil, rapeseed oil, tall oil, and combinations thereof.

12. The method of claim 10 , wherein the fatty acid is lauric acid, myristic acid, palmilitic acid, stearic acid, arachidic acid, behenic acid, oleic acid, linoleic acid, linolenic acid, or a combination thereof.

13. The method of claim 8 , wherein the alkylene carbonate is represented by formula (I), wherein R 2 , R 3 , and R 5 are each hydrogen, and R 4 is selected from the group consisting of hydrogen, CH 3 , C 2 H 5 , and CH 3 OH.

14. A method of producing a modified drilling fluid, comprising mixing:

a drilling fluid; and

a hydroxyalkylcarbamate-functional polyamide composition produced by:

reacting a polyalkylene polyamine and fatty acid to form an amidoamine intermediate product, wherein the molar ratio of the polyalkylene polyamine to fatty acid ranges from 1:1.5 to 1:2.5; and

reacting the amidoamine intermediate product and an alkylene carbonate represented by formula (I) below:

wherein R 2 — R 5 are independently selected from i) hydrogen, ii) an alkyl group, and iii) a moiety comprising a hydroxyl, halide, aldehyde, ether, ester, carboxylic acid, epoxide, or a combination thereof.

15. A modified drilling fluid, comprising:

a drilling fluid; and

a hydroxyalkylcarbamate-functional polyamide composition comprising at least one compound represented by formula (VII):

wherein R 2 —R 5 are independently selected from i) hydrogen, ii) an alkyl group, and iii) a moiety comprising a hydroxyl, halide, aldehyde, ether, ester, carboxylic acid, epoxide, or a combination thereof; and

wherein R 1 is a saturated or unsaturated, branched or straight chain, substituted or unsubstituted hydrocarbyl group having from 6 to 24 carbon atoms.

16. The method of claim 15 , wherein the alkylene carbonate is represented by formula (I), wherein R 2 , R 3 , and R 5 are each hydrogen, and R 4 is selected from the group consisting of hydrogen, CH 3 , C 2 H 5 , and CH 3 OH.

17. The modified drilling fluid of claim 15 , wherein the drilling fluid is a water-in-oil invert emulsion drilling mud.

Assignments (3)
SECURITY INTEREST Recorded May 4, 2026
From: HUNTSMAN INTERNATIONAL LLC; HUNTSMAN ADVANCED MATERIALS AMERICAS LLC; HUNTSMAN NANOCOMP LLC; HUNTSMAN PETROCHEMICAL LLC
To: CITIBANK N.A.
Reel/Frame 075498/0663 →
PATENT SECURITY AGREEMENT Recorded Mar 10, 2026
From: HUNTSMAN INTERNATIONAL LLC; HUNTSMAN ADVANCED MATERIALS AMERICAS LLC; HUNTSMAN NANOCAMP LLC; HUNTSMAN PETROCHEMICAL LLC
To: CITIBANK, N.A.
Reel/Frame 075106/0238 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 30, 2019
From: STEVES, ROBERT CARL; CLEMENTS, JOHN H.; LEWIS, DAVID C.
To: HUNTSMAN PETROCHEMICAL LLC
Reel/Frame 050567/0323 →
Continuity (2)
Provisional Application 62489003 · Apr 24, 2017
Related Publication 20200115615A1 · Apr 16, 2020
Cited By (1)
US 12,454,639