Organic compounds -- part of the class 532-570 series – Organic compounds – Isocyanate esters
Patent
1987-04-07
1989-11-07
Siegel, Alan
Organic compounds -- part of the class 532-570 series
Organic compounds
Isocyanate esters
C07C 6900
Patent
active
048794082
ABSTRACT:
Diisocyanates and isomer mixtures of diisocyanates corresponding to the formula ##STR1## in which R.sup.1, R.sup.2, m and n are as defined herein are produced by phosgenating diamines and isomer mixtures of diamines corresponding to the formula ##STR2## in which R.sup.1, R.sup.2, m and n are as defined herein. These diisocyanates which are liquid at room temperature and highly compatible with polyols are particularly useful in the production of polyurethanes.
REFERENCES:
patent: 3361814 (1968-01-01), Campbell
patent: 3565768 (1971-02-01), Grant
patent: 3870683 (1975-03-01), Freure
Brockelt Michael
Knofel Hartmut
Penninger Stefan
Stutz Herbert
Bayer Aktiengesellschaft
Gil Joseph C.
Harsh Gene
Siegel Alan
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