Solid, water-dispersible plastics precursors containing...

Details Solid, water-dispersible plastics precursors containing... Solid, water-dispersible plastics precursors containing...

C - Chemistry, Metallurgy

08

G

400/111, 402/131

C08G 18/48 (2006.01) C08G 18/08 (2006.01) C08G 18/10 (2006.01) C08G 18/28 (2006.01)

Patent

CA 1208842

SOLID, WATER-DISPERSIBLE PLASTICS PRECURSORS CONTAINING ISOCYANATE GROUPS, A PROCESS FOR THE PRODUCTION OF AQUEOUS PLASTICS DISPERSIONS USING SUCH PLASTICS PRECURSORS AND THE USE OF SUCH PLASTICS PRECURSORS AS CROSS-LINKING AGENTS FOR AQUEOUS PLASTICS DISPERSIONS ABSTRACT OF THE DISCLOSURE The present invention relates to water-dispersible plastics precursors which are solid at temperatures below about 40°C. The plastics precursors are based on isocyanate-terminated prepolymers which have been hydro- philically modified with ionic groups and/or ethylene oxide units and which contain specified amounts of iso- cyanate groups and -NH- groups. The present invention also relates to processes for preparing aqueous dispersions from the solid plastics precursors and to using the plastics precursors for cross-linking dispersed plastics containing isocyanate- reactive groups.

380763

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