Amino-terminated polybutadienes

Improved amine-terminated polybutadienes (ATPBs) having one or two terminal amino groups, are prepared by cyanoalkylating a hydroxyl-terminated polybutadiene by Michael addition of acrylonitrile in the presence of a base, forming nitrile termination, followed by hydrogenation in the presence of a Gr...

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Bibliographic Details
Main Authors TIAN, NAN, DREXLER, ALAIN, SCHMIDHAUSER, JOHN C, CHAO, HERBERT
Format Patent
LanguageEnglish
French
German
Published 21.07.2004
Edition7
Subjects
CHEMISTRY
COMPOSITIONS BASED THEREON
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS
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Summary:Improved amine-terminated polybutadienes (ATPBs) having one or two terminal amino groups, are prepared by cyanoalkylating a hydroxyl-terminated polybutadiene by Michael addition of acrylonitrile in the presence of a base, forming nitrile termination, followed by hydrogenation in the presence of a Group VIII metal as catalyst. The ATPBs may be hydrogenated or partially hydrogenated, either prior to or after the amination, to saturate or partially saturate the polymers. Polyureas, polyurethanes, crosslinked epoxies, polyamides and other derivatives with improved properties can be prepared from the ATPBs. The resultant derivatives are useful in liquid binders for braking systems, electric potting compositions, coatings, adhesives, sealants, and water proofing membranes, for example.
Bibliography:Application Number: EP20040100056