Preparation of polyisocyanates containing biuret groups

Details Preparation of polyisocyanates containing biuret groups Preparation of polyisocyanates containing biuret groups

1979-02-02

1980-03-11

Cockeram, H.S.

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...

521160, 528 67, 528 75, C08G 1878, C08G 1814

Patent

active

041929365

ABSTRACT:
This invention relates to an improved process for the preparation of polyisocyanate mixtures containing biuret groups by the reaction of organic diisocyanates with compounds which react with isocyanate groups to form biuret groups, to the polyisocyanate mixtures obtained by this process and to the use thereof for the preparation of polyurethane resins by the isocyanate polyaddition process.

REFERENCES:
patent: 3124605 (1964-03-01), Wagner
patent: 3350438 (1967-10-01), Hennig
patent: 3358010 (1967-12-01), Britain
patent: 3441588 (1969-04-01), Wagner et al.
patent: 3824266 (1974-07-01), Dietrich et al.
patent: 3862973 (1975-01-01), Dietrich et al.
patent: 3903126 (1975-09-01), Woerner et al.
patent: 3903127 (1975-09-01), Wagner et al.

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