IP Library › Granted Patent US 12,208,377
Granted Patent B2
US 12,208,377 · App. 17/263,536 · Granted Jan 28, 2025

Solvents for organometallic reagents

Inventors: David E. Bergbreiter (College Station, TX); Thomas J. Malinski (Bryan, TX)
Assignee: The Texas A&M University System
B01J31/122B01J31/06B01J35/27B01J37/04C07C33/20C07C49/76C07C233/65B01J2231/12B01J2231/342B01J2231/44B01J2531/11
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Quick Facts
Patent No.
US 12,208,377
App. No.
17/263,536
Granted
Jan 28, 2025
Kind
B2
Abstract

A solution consisting of: a poly(a-olefin) (PAO) selected from the group consisting of PAO 283 , PAO 432 , and PAO 687 ; and a reactive organometallic reagent selected from the group consisting of n-butyllithium, sec-butyllithium, tert-butyllithium, n-butyllithium in hexane, sec-butyllithium in cyclohexane, and tert-butyllithium in pentane.

Claims (6)

1. A solution consisting of:

a poly(α-olefin) (PAO) selected from the group consisting of PAO 283 , PAO 432 , and PAO 687 ; and

a reactive organometallic reagent selected from the group consisting of n-butyllithium, sec-butyllithium, tert-butyllithium, n-butyllithium in hexane, sec-butyllithium in cyclohexane, and tert-butyllithium in pentane.

2. The solution of claim 1 , wherein the reactive organometallic reagent comprises n-butyllithium having a molar concentration of 2.7 M.

3. The solution of claim 1 , wherein the reactive organometallic reagent comprises sec-butyllithium having a molar concentration of 1.5 M.

4. The solution of claim 1 , wherein the reactive organometallic reagent comprises tert-butyllithium having a molar concentration of 1.0 M.

Assignments (2)
CONFIRMATORY LICENSE Recorded May 19, 2025
From: TEXAS A&M UNIVERSITY
To: NATIONAL SCIENCE FOUNDATION
Reel/Frame 071293/0001 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 19, 2021
From: BERGBREITER, DAVID E.; MALINSKI, THOMAS J.
To: THE TEXAS A&M UNIVERSITY SYSTEM
Reel/Frame 055956/0468 →
Continuity (2)
Provisional Application 62711892 · Jul 30, 2018
Related Publication 20210178375A1 · Jun 17, 2021
References Cited (8)
US 6248702B1 · Coolbaugh · 2001 [cited by examiner]
Liang et al. Angew. Chem. Int. Ed. Year 2014, 53, 8084-8087. [cited by examiner]
Supporting Information: Harrell al. J. Polymer Science, Year 2014, 52, 545-551. [cited by examiner]
Harrell dissertation: Studies of Alternative Solvent Systems to Recycle Phase Selectively Soluble Catalyst, Dec. 2017, pp. 1-156. [cited by examiner]
Harrell, Mary L. et al.; “Alternatives for Conventional Alkane Solvents”; Journal of the American Chemical Society; vol. 138; Oct. 18, 2016; pp. 14650-14657. [cited by applicant]
Priyadarshani, Nilusha et al.; “Polyolefin Soluble Polyisobutylene Oligomer-Bound Metallophthalocyanine and Azo Dye Additives”; Journal of Polymer Science, Part A: Polymer Chemistry; vol. 52; Nov. 30, 2013; pp. 545-551. [cited by applicant]
Samunual, Peerada et al.; “S [cited by applicant]
Malinski, Thomas J. et al.; “Safer solvents for reactive organometallic reagents”; Tetrahedron Letters; vol. 59; Sep. 17, 2018; pp. 3926-3929. [cited by applicant]