Prepolymers with low TDI content

Details Prepolymers with low TDI content Prepolymers with low TDI content

1997-11-03

1998-10-06

Gorr, Rachel

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 59, 521159, 25218222, C08G 1810

Patent

active

058177345

ABSTRACT:
This invention relates to novel liquid toluene diisocyanate/polyether/polymethylene poly(phenylisocyanate) prepolymers having an NCO content of from about 2 to 20%, a viscosity or about 10,000 mPa.s or less at 25.degree. C., and which contains about 1.0% or less of monomeric TDI. This invention also relates to a process for the preparation of these liquid toluene diisocyanate/polyether/polymethylene poly(phenylisocyanate) prepolymers.

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