Patent ID: 8486183

Claim:
A method for producing absorbent materials of the formula by catalytically reacting an alkyloxy alcohol of the formula with an alkyl amine of the formula wherein x is 2, 3 or 4; y is 1, 2, 3, 4, or 5; R 1 is C 1 -C 9 alkyl, C 3 -C 9 branch alkyl, C 5 -C 9 cycloalkyl, C 6 -C 10 aryl, alkylaryl, or aryl alkyl; R 2 is a C 3 -C 9 straight or branched alkyl wherein N is attached to R 2 through a second or tertiary carbon atom of R 2 ; R 5 is hydrogen, or C 1 -C 6 alklyl; R 3 is hydrogen or C 2 -C 5 alkyl.