C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 18/42 (2006.01) C08G 18/10 (2006.01)
Patent
CA 2382031
The invention relates to a method for producing prepolymers containing isocyanate end groups from polyester polyols and poly-isocyanates. Said prepolymers incorporate a small proportion of free base isocyanates.
Procédé de fabrication de prépolymères contenant des groupes terminaux isocyanate à partir de polyesterpolyols et de polyisocyanates. Lesdits prépolymères renferment une fraction minime d'isocyanates de départ libres.
Barnes James-Michael
Hoffmann Andreas
Schmidt Manfred
Wershofen Stefan
Aktiengesellschaft Bayer
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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