PROCESS FOR THE PREPARATION OF AMINE SALTS OF A POLYURETHANE POLYMER AND FOR THE PREPARATION OF FLOATING POLYURETHANE POLYMERS, A FLOATING COMPOSITION OBTAINED THEREOF, AND A METHOD FOR FORMING A FLOATING URETHANE COATING COMPOSITION

摘要

P THE PRESENT INVENTION CONCERNS A PROCESS FOR THE PREPARATION OF AMINE SALTS OF A POLYURETHANE POLYMER. /P P ACCORDING TO THE INVENTION, A HAIR PREPOLYMER OF ISOCYANATE IS PREPARED, WHICH IS REACTED. WITH THE ORDER OF 0.7 TO 1.2 EQUIVALENTS OF A SELECTED CETOXIME AMONG ACETONE OXIME, BUTANONE OXIME, CYCLOHEXANONE OXIME AND THEIR MIXTURES TO BLOCK NCO GROUPS OF PREPOLYMER IN ORDER TO FORM A BLOCKED PREPOLYMER 'OXIME, THIS OXIME-BLOCKED PREPOLYMER IS REACTED WITH A POLY-FUNCTIONAL AMINE CONTAINING AT LEAST TWO FUNCTIONAL GROUPS AND WHICH MAY FORCE POLYURETHANE POLYMERS TO HARD AT LOW TEMPERATURES TO FORM A REACTIONAL AGENT. THIS AMINE REACTIONAL PRODUCT WITH ORGANIC OR INORGANIC ACID TO FORM AN AMINE SALT OF A LOW TEMPERATURE CURABLE POLYURETHANE POLYMER AND INFINITELY DILUENT IN WATER. /P P THE INVENTION APPLIES IN PARTICULAR FOR THE PREPARATION OF COATING COMPOSITIONS AND SATURATI ON. /P