Composition of 4, 4-bis(hydroxyaryl) pentanoic acid co-esters and polyepoxides

Claim 1

A NEW COMPOSITION OF MATTER COMPRISING THE CONDENSATION PRODUCT OBTAINED BY HEATING (A) AN ESTER OF A POLYHYDRIC ALCOHOL HAVING A MOLECULAR WEIGHT OF NOT MORE THAN ABOUT 8,000 AND A MIXTURE OF (1) A PENTANOIC ACID CONSISTING ESSENTIALLY OF 4,4 BIS (4-HYDROXYARYL)PENTANIOC ACID WHEREIN THE HYDROXYARYL RADICAL IS A HYDROXYPHENYL RADICAL AND IS FREE FROM SUBSTITUENTS OTHER THAN ALKYL GROUPS OF FROM ABOUT 1-5 CARBON ATOMS AND (2) AT LEAST ONE ALIPHATIC MONOCARBOXYLIC ACID HAVING FROM ABOUT 10-36 CARBON ATOMS AND (B) A POLYEPOXIDE CONTAINING AN AVERAGE OF MORE THAN ONE OXIANE GROUP PER MOLECULE WHEREIN SAID POLYEPOXIDE IS COMPOSED OF THE ELEMENTS CARBON, HYDROGEN AND OXYGEN AND HAVING OXYGEN PRESENT ONLY IN THE GROUPS SELECTED FROM THE GROUP CONSISTING OF -OH, -COO-, ETHERAL OXYGEN AND OXIRANE GROUPS; WHEREIN THE RATIO OF POLYHYDRIC ALCOHOL TO THE MIXTURE OF ACID OF (A) IS FROM 1:5 MOLES OF THE ALCOHOL PER MOLE OF ACID, WHEREIN THE RATIO OF ACID (1) TO THE ACID (2) OF (A) IS FROM 1:5 TO 5:1 AND WHEREIN THE RATIO OF COMPONENTS (A) AND (B) IS FROM 1:8 TO 8:1 ALL RATIOS BEING ON AN EQUIVALENT WEIGHT BASIS.