Process for the production of synthetic resins which contain isocyanurate groups
Abstract
Abstract 3-R4,4-R3,5-R2,6-R1-3,5-CYCLOHEXADIENE-1,2-DIONE (II) 2-R3,3-R4,4-(R-N=),5-R2,6-R1-2,5-CYCLOHEXADIENONE A PROCESS FOR THE PRODUCTION OF CELLULAR SYNTHETIC RESINS WHICH CONTAIN ISOCYANURATE GROUPS BY POLYMERIZATION OF POLYISOCYANATES IN THE PRESENCE OF ISOCYANATE POLYMERIZATION CATALYST IS PROVIDED, CHARATERIZED IN THAT POLYMERIZATION IS CARRIED OUT USING A QUINONE OF THE FORMULAE 2-R3,3-R4,5-R2,6-R1-2,5-CYCLOHEXADIENE-1,4-DIONE (I) OR MIXTURES THEREOF IN WHICH R1, R2, R3 AND R4 ARE THE SAME OOR DIFFERENT AND REPRESENT HYDROGEN, HYDROCARBON RADICALS CONTAINING 1 TO 6 CARBON ATOMS, HALOGEN ATOMS OR A NITRILE RADICAL OR R1 AND R2 AND/OR R3 AND R4 REPRESENT AROMATICALLY CONDENSED CYCLIC HYDROCARBON RADICALS AND R REPRESENTS HYDROXYL, HALO OR ALKYLAMINO SUBSTITUTED AROMATIC RADICALS CONTAINING 6 TO 14 CARBON ATOMS.
Inventors
- 👤 H Diehr
Bibliographic Details
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