Organic polyisocyanates

Details Organic polyisocyanates Organic polyisocyanates

1970-07-28

1976-02-03

Gotts, Lewis

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

252182, 260 25AT, 260 775AT, 260453AM, C07C119048

Patent

active

039364836

ABSTRACT:
A polyisocyanate composition comprising a mixture of from about 10 percent to about 90 percent by weight of toluene diisocyanate and the balance a mixture of polyphenyl-polymethylene-polyisocyanates which latter are preferably the refined condensation product of aniline and formaldehyde. These polyisocyanate compositions are eminently suitable as isocyanate precursors for the production of high rise, thin section cellular polyurethane moldings.

REFERENCES:
patent: 2683730 (1954-07-01), Seeger et al.
patent: 3294713 (1966-12-01), Hudson et al.
patent: 3341463 (1967-09-01), Gemeinhardt

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