Amino and amido ester polymers and method of making

Claim 1

A SOLVENT-RESISTANT, TOUGH AND FLEXIBLE POLYMERIC PRODUCT PRODUCED BY HEATING TOGETHER A SMALL PROPORTION OF AN ALDEHYDIC CURING AGENT WITH A PREPONDERANT PROPORTION OF A POLYESTER POLYMER, SAID POLYMER BEING THE PRODUCT OF SIMULTANEOUSLY MIXING TOGETHER SUBSTANTIALLY EQUIMOLAR AMOUNTS OF INTER-REACTIVE COMPONENTS AS HEREINAFTER DEFINED, AND HEATING THE MIXTURE, WITH ELIMINATION OF WATER OF CONDENSATION, UNTIL A LOW-ACID-NUMBER POLYMER SOLUBLE IN ISOPROPANOL-XYLOL IS OBTAINED; SAID INTER-REACTIVE COMPONENTS CONSISTING ESSENTIALY OF (A) DICARBOXYLIC ACID ACIDS INCLUDING AT LEAST ABOUT 80% OF DICARBOXYLIC ACID HAVING AT LEAST FOUR CARBON ATOMS IN THE SKELETAL CHAIN, HAVING THE CARBOXYL GROUP ATTACHED TO SEPARATE ALIPHATIC CARBON ATOMS, AND HAVING ESSENTIALLY NO CONJUGATED UNSATURATION, AND NOT MORE THAN ABOUT 20% OF DICARBOXYLIC ACID SELECTED FROM THE CLASS CONSISTING OF MALEIC, FUMARIC, ITACONIC, AND CITRACONIC ACIDS, AND ADDUCTS OF MALEIC ANHYDRIDE WITH CONJUGATED DIENES; AND (B) COMPOUNDS REACTIVE WITH SAID ACIDS, AND SELECTED FROM THE CLASS CONSISTING OF PHENYLDIETHANOLAMINE, NONCYCLIZABLE MONOALKANOLAMINES HAVING A SINGLE PRIMARY AMINO GROUP, NONCYCLIZABLE N-MONO-HYDROCARBON-SUBSTITUTED MONOALKANOLAMINES HAVING A SINGLE SECONDARY AMINO GROUP, GLYCOLS, AND MIXTURES THEREOF, AND INCLUDING PHENYLDIETHANOLAMINE IN AN AMOUNT SUFFICIENT TO AVERAGE AT LEAST ONE