Process for the manufacture of mixtures of diphenylmethane diiso

Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal

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252182, 260453AM, 260453AR, C07C119048

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active

043494846

ABSTRACT:
A process for the production of mixtures of diphenylmethane diisocyanates and polyphenyl polymethylene polyisocyanates comprising the steps of

REFERENCES:
patent: B518076 (1976-03-01), Pistor et al.
patent: 4014914 (1977-03-01), Pistor et al.
patent: 4031026 (1977-06-01), Ibbotson
patent: 4118410 (1978-10-01), Friedel et al.

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