| abstract |
A PROCESS FOR THE PREPARATION OF BIS(2,3-EPOXY-2-METHYLPROPYL)ETHER TYPE EPOXY RESIN OF DEHYDRIC PHENOL, CHARACTERIZED BY THE CONCURRENT USAGE, AS THE STARTING DIHYDRIC PHENOL, OF LESS THAN 10 MOL PERCENT OF NUCLEUS HALOGENSUBSTITUTED, OR -UNSUBSTITUTED, SYMMETRIC DIHYDRIC PHENOL AND AT LEAST 10 MOL PERCENT OF SPECIFIC ASYMMETRIC DIHYDRIC PHENOL. THE EPOXY RESIN OF THIS INVENTION EXHIBITS EXCELLENT MELT-FLOWABILITY WHEN THERMALLY MELTED AND DURING PROCESSING, AS WELL AS EXCELLENT SOLUBILITY, AND ALSO HAS VERY GOOD FLOWABILITY AND HOMOGENEITY IN THE SOLUTION STATE. |