POLYSILOXANE MODIFIED POLYISOCYANATES FOR USE IN COATINGS

The invention relates to an isocyanate-terminated polysiloxane material that can preferably be used as a curing agent, hardener or co-reactant in coatings. The invention further relates to a method of manufacturing the isocyanate-terminated polysiloxane material by partially hydrolyzing a methoxy-fu...

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Bibliographische Detailangaben
Hauptverfasser: KOAY, CHIEW, W, KEUK, JASMINE, GASMENA, ROLAND, L, JOHNSTON, DOUGLAS, E, WYMAN, LARRY, DALE, FLANIGAN, CAROLINA, A, LUM, PAUL, ANTHONY
Format: Patent
Sprache:eng ; fre ; ger
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Zusammenfassung:The invention relates to an isocyanate-terminated polysiloxane material that can preferably be used as a curing agent, hardener or co-reactant in coatings. The invention further relates to a method of manufacturing the isocyanate-terminated polysiloxane material by partially hydrolyzing a methoxy-functional polysiloxane such as a methyl phenyl polysiloxane, and reacting it with a polyisocyanate to yield the isocyanate-terminated polysiloxane hardener. The hardener can preferably be used with any isocyanate-reactive functional group of another component to form coating systems, including acrylics, polyesters, epoxies and urethanes.