US2014256988A1PendingUtilityA1
Polyetheramines, compositions including polyetheramines, and methods of making
Assignee: INVISTA NORTH AMERICA SARLPriority: Sep 10, 2010Filed: May 20, 2014Published: Sep 11, 2014
Est. expirySep 10, 2030(~4.1 yrs left)· nominal 20-yr term from priority
Inventors:Ronald L. Amey
C08G 73/00C08G 65/3255C08G 65/325C08L 71/00C08L 79/00C08L 79/02C08G 73/024C07C 213/02C08G 2650/50C08L 63/00
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Claims
Abstract
Embodiments of the present disclosure include polyetheramines, methods of making polyetheramine, methods of using polyetheramine, and the like.
Claims
exact text as granted — not AI-modified1 - 10 . (canceled)
11 . A method of preparing a α,ω-diamino poly(oxyethylene-co-oxytetramethylene ether) random copolymer composition, the method comprising reductive amination of a poly(oxyethylene-co-oxytretramethylene ether) glycol in the presence of ammonia, hydrogen, and a reductive amination catalyst at an elevated temperature and elevated total pressure.
12 . The method of claim 11 , wherein the elevated temperature is about 150° C. to about 300° C.
13 . The method of claim 11 , wherein the total pressure is about 1500 psig to about 4000 psig.
14 . The method of claim 11 , wherein the amination catalyst comprises cobalt, nickel, or cobalt/nickel mixtures.
15 . The method of claim 14 , wherein the amination catalyst further comprises metal promoters.
16 . The method of claim 11 , wherein the molar ratio of ammonia to poly(oxyethylene-co-oxytretramethylene ether) glycol is greater than the stoichiometric amount of ammonia required for complete conversion of hydroxyl ends to amine ends.
17 . The method of claim 11 , wherein the molar ratio of ammonia to poly(oxyethylene-co-oxytretramethylene ether) glycol is about 10:1 to about 150:1.
18 . The method of claim 11 , wherein the molar ratio of ammonia to poly(oxyethylene-co-oxytretramethylene ether) glycol is about 40:1 to about 150:1.
19 . A method of preparing a α,ω-diamino poly(oxyethylene-co-oxytetramethylene ether) random copolymer composition, the method comprising:
hydrogenating a poly(oxyethylene-co-oxytretramethylene ether) glycol at a temperature of about 150° C. to about 300° C. and a total pressure of about 1500 psig to about 4000 psig in the presence of about 10:1 to about 150:1 molar ratio of ammonia to poly(oxyethylene-co-oxytretramethylene ether) glycol and a reductive amination catalyst to form an α-ω-diamino poly(oxyethylene-co-oxytetramethylene ether) random copolymer; and
recovering α,ω-diamino poly(oxyethylene-co-oxytetramethylene ether) random copolymer.
20 . (canceled)
21 . (canceled)Join the waitlist — get patent alerts
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