Diphenylmethane diisocyanate compositions

Details Diphenylmethane diisocyanate compositions Diphenylmethane diisocyanate compositions

1976-05-10

1977-06-21

Schafer, Richard E.

Compositions

Compositions containing a single chemical reactant or plural...

Organic reactant

260 775AT, 260453AM, C07C11948

Patent

active

040310264

ABSTRACT:
A diphenylmethane diisocyanate composition which comprises diphenylmethane diisocyanate, a diphenylmethane diisocyanate uretonimine group-containing derivative, a reaction product of diphenylmethane diisocyanate and a diol of molecular weight less than 175 and optionally not more than 10% by weight of methylene bridged polyphenyl polyisocyanates of isocyanate functionality higher than two, the composition having an isocyanate functionality of not more than 2.3. Methods of manufacture of such compositions, which compositions are useful for the manufacture of polyurethanes.

REFERENCES:
patent: 3455836 (1969-07-01), Shultz et al.
patent: 3583926 (1971-06-01), Zwolinski et al.
patent: 3634361 (1972-01-01), Shultz et al.
patent: 3640886 (1972-02-01), Cenker
patent: 3658762 (1972-04-01), Cobbledick
patent: 3936483 (1976-02-01), Gemeinhardt
patent: 3980579 (1976-09-01), Syrop et al.

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