FAST PREPARATION OF LOW PRIMARY AMINE CONTAINING POLYASPARTIC ESTERS AND USE OF THESE POLYASPARTIC ESTERS IN SLOW REACTIVITY POLYUREA SYSTEMS

Low primary amine (LPA) polyaspartic esters are provided which comprise a reaction product of an aliphatic diamine and an excess of a Michael addition receptor optionally, in the presence of a C1-C10 alcohol, wherein the low primary amine (LPA) polyaspartic ester has a monoaspartate content of less...

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Bibliographic Details
Main Authors STEWART, Matthew, GUSTAVICH, Wendy, MILLER, Adam, SQUILLER, Edward P, JOHNSTON, Jay A, MORRIS, Mark, WILLIAMS, Charles Todd
Format Patent
LanguageEnglish
French
German
Published 29.06.2022
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
COMPOSITIONS BASED THEREON
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
METALLURGY
ORGANIC CHEMISTRY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
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Summary:Low primary amine (LPA) polyaspartic esters are provided which comprise a reaction product of an aliphatic diamine and an excess of a Michael addition receptor optionally, in the presence of a C1-C10 alcohol, wherein the low primary amine (LPA) polyaspartic ester has a monoaspartate content of less than 10%. The low primary amine (LPA) polyaspartic esters of the invention may find use in slow reactivity polyurea systems and react with polyisocyanates to produce polyurea coatings, adhesives, sealants, films, composites, castings, and paints.
Bibliography:Application Number: EP20200764258