Organic compounds -- part of the class 532-570 series – Organic compounds – Four or more ring nitrogens in the bicyclo ring system
Patent
1989-08-08
1991-02-12
Ford, John M.
Organic compounds -- part of the class 532-570 series
Organic compounds
Four or more ring nitrogens in the bicyclo ring system
544221, 544222, 524101, 528 48, C07D25134
Patent
active
049925482
ABSTRACT:
The present invention is directed to catalysts obtained by mixing alkali fluorides with quaternary ammonium or phosphonium salts.
The present invention is also directed to a process for the production of these catalysts by stirring alkali fluorides and quaternary ammonium or phosphonium salts in alcohol, separating any deposits formed, removing the alcohol and converting the catalyst into useful form by dilution in solvents or absorption onto support materials.
Finally, the present invention is directed to the use of the new catalysts as trimerization catalysts for the production of polyisocyanates containing isocyanurate groups.
REFERENCES:
patent: 3487080 (1969-12-01), Hyogo et al.
patent: 3980594 (1976-09-01), Fabris et al.
patent: 4324879 (1982-04-01), Bock et al.
patent: 4412073 (1983-10-01), Robin
patent: 4419513 (1983-12-01), Breidenbach et al.
patent: 4487928 (1984-12-01), Richter et al.
patent: 4537961 (1985-08-01), Robin
patent: 4582861 (1986-04-01), Galla et al.
patent: 4582888 (1986-04-01), Kase et al.
patent: 4604418 (1986-08-01), Shindo et al.
patent: 4675401 (1987-06-01), Robin
patent: 4736008 (1988-04-01), Kouno et al.
Polyurethanes, Chemistry and Technology, Part I Chemistry, Saunders and Frisch, Interscience Publishers, pp. 94-97 (1962).
Pedain Josef
Scholl Hans-Joachim
Bayer Aktiengesellschaft
Ford John M.
Gil Joseph C.
Roy Thomas W.
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