Polymeric isocyanates and their manufacture
First Claim
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1. A PROCESS FOR THE PREPARATION OF ISOCYANATE GROUPCONTAINING ISOCYANURATE COMPOUNDS BY POLYMERIZING ORGANIC POLYISOCYANATES COMPRISING POLYMERIZING AN ORGANIC POLYISOCYANATE AT A TEMPERATURE FROM AROUND ROOM TEMPERATURE TO BELOW 200*C. IN THE PRESENCE OF LEAD 2-ETHYLHEXOATE AND INTERRUPTING THE REACTING AFTER THE FORMATION OF ISOCYANURATE RINGS DETECTABLE BY INFRA-RED ABSORPTION AT 5.85 TO 7.05 MICRONS.
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1 Claim
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1. A PROCESS FOR THE PREPARATION OF ISOCYANATE GROUPCONTAINING ISOCYANURATE COMPOUNDS BY POLYMERIZING ORGANIC POLYISOCYANATES COMPRISING POLYMERIZING AN ORGANIC POLYISOCYANATE AT A TEMPERATURE FROM AROUND ROOM TEMPERATURE TO BELOW 200*C. IN THE PRESENCE OF LEAD 2-ETHYLHEXOATE AND INTERRUPTING THE REACTING AFTER THE FORMATION OF ISOCYANURATE RINGS DETECTABLE BY INFRA-RED ABSORPTION AT 5.85 TO 7.05 MICRONS.
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