Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From reactant having at least one -n=c=x group as well as...
Patent
1985-10-03
1987-07-14
Kight, John
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From reactant having at least one -n=c=x group as well as...
528 48, C08G 1800, C08G 1808
Patent
active
046803670
ABSTRACT:
The present invention is directed to a process for the production of urea group-containing, finely divided solid polyisocyanates by emulsifying or suspending a urea group-free organic polyisoycanate in an excess of water so that said organic polyisocyanate amounts to about 1 to 65% by weight of the reaction mixture, said water containing about 0.01 to 5% by weight, based on the aqueous phase, of a protective colloid and reacting the organic polyisocyanate with water to yeild a urea group-containing polyisocyanate.
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Grogler Gerhard
Hess Heinrich
Konig Klaus
Kopp Richard
Bayer Aktiengesellschaft
Daley Dennis R.
Gil Joseph C.
Harsh Gene
Kight John
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