ADVANCED EPOXY RESINS AND COATING COMPOSITIONS CONTAINING ADVANCED EPOXY RESINS.

摘要

AN ADVANCED EPOXY RESIN PREPARED BY REACTING IN THE PRESENCE OF A SUITABLE CATALYST (A) A COMPOSITION COMPRISING (1) AT LEAST ONE DIGLYCIDYL ETHER OF A POLYOXYPROPYLENE GLYCOL OR DIPROPYLENE GLYCOL; AND (2) AT LEAST ONE AROMATIC DIEPOXIDE; WITH (B) AT LEAST ONE COMPOUND HAVING TWO AROMATIC HYDROXYL GROUPS PER MOLECULE; WHEREIN COMPONENTS (A-1) AND (A-2) ARE EMPLOYED IN QUANTITIES SUCH THAT FROM 10 TO 50 PERCENT OF THE EPOXIDE EQUIVALENTS CONTAINED IN COMPONENT (A) ARE CONTRIBUTED BY COMPONENTS (A-1), FROM 50 TO 90 PERCENT OF SUCH EPOXIDE EQUIVALENTS ARE CONTRIBUTED BY COMPONENT (A-2), AND COMPONENT (A-1) IS PRESENT AS AT LEAST 20 WEIGHT % AND LESS THAN 50 MOL % OF COMPONENTS (A-1) AND (A-2), AND WHEREIN COMPONENTS (A) AND (B) ARE PRESENT IN A QUANTITY WHICH RESULTS IN AND ADVANCE EPOXY RESIN HAVING AN AVERAGE EPOXIDE EQUIVALENT WEIGHT OF FROM 350 TO 30,000.