Modified aromatic polyisocyanates and their use for the producti

Details Modified aromatic polyisocyanates and their use for the producti Modified aromatic polyisocyanates and their use for the producti

1993-03-31

1995-06-13

Kight, III, 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 85, 521159, 521160, 25218222, C08G 1876

Patent

active

054243866

ABSTRACT:
Polyaromatic polyisocyanates are modified by reaction with 0.1 to 10 weight %, preferably 2 to 7 weight % (based on polyisocyanate) of a polyether alcohol of molecular weight 206 to 948, obtainable by the reaction of alkylene oxides with C.sub.6 -C.sub.30, preferably C.sub.8 -C.sub.20, hydrocarbons containing 1 to 3 active H atoms, and are used for the production of rigid polyurethane foamed materials.

REFERENCES:
patent: 4304708 (1981-12-01), Marx et al.
patent: 5028636 (1991-07-01), Gebauer et al.
patent: 5126379 (1992-06-01), Volkert et al.
patent: 5216042 (1993-06-01), Daussin et al.
patent: 5314588 (1994-05-01), Zarnack

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