Preparation of aqueous dispersions of blocked aromatic...

Details Preparation of aqueous dispersions of blocked aromatic... Preparation of aqueous dispersions of blocked aromatic...

C - Chemistry, Metallurgy

09

K

400/112, 134/47

C09K 3/00 (2006.01) C08G 18/80 (2006.01)

Patent

CA 1058853

ABSTRACT OF THE DISCLOSURE Aqueous dispersions of aromatic polyisocyanates blocked with phenolic compounds are prepared by mixing the polyisocyanate and an aqueous solution containing an excess of the phenolic compound in the presence of a basic catalyst at a temperature above the melting point of the polyisocyanate.

266218

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