Aminated, alkoxylated hydroxyl-terminated polybutadienes

Details Aminated, alkoxylated hydroxyl-terminated polybutadienes Aminated, alkoxylated hydroxyl-terminated polybutadienes

1989-04-17

1991-02-19

Raymond, Richard L.

Organic compounds -- part of the class 532-570 series

Organic compounds

Amino nitrogen containing

564505, C07C21302, C07C21522

Patent

active

049946218

ABSTRACT:
Aminated, alkoxylated hydroxyl-terminated polymers are made by a process involving first polymerizing one or more unsaturated hydrocarbons, such as butadiene, to form a liquid polymer. Next, the liquid polymer is provided with terminal hydroxyl groups. Then, the hydroxylated liquid polymer is alkoxylated with one or more alkylene oxides, such as ethylene oxide, propylene oxide, butylene oxide, and mixtures thereof, to provide secondary terminal hydroxyl groups. Finally, the alkoxylated liquid polymer is aminated over a transition metal oxide catalyst, such as a combination of nickel oxide/copper oxide/chromium oxide. If the alkoxylated, hydroxyl-terminated liquid polymer is terminated with primary hydroxyl groups, then the amination does not proceed well.

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A. V. Pocius, "Elastomer Modification of Structural Adhesives," Rubber Chemistry and Technology, vol. 58, No. 3, Jul.-Aug., 1985, pp. 622-635.

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