Preparation of polyurethane foam from alkyd polyester resin and a toluene dhsocyanate and 1, 2, 6-hexanetriol adduct

Claim 1

A PROCESS FOR THE PRODUCTION OF POLYURETHANE FOAM WHICH COMPRISES REACTING THE ADDUCT OF 1,2,6-HEXANETRIOL AND TOLUENE DIISOCANATE IN EXCESS TOLENE DIISOCYANATE PREPARED BY HEATING TOLUENE DIICOYANATE TO A TEMPERATURE WITHIN THE RANGE OF 75-125* C., ADMIXING, 1,2,6-HEXANETRIOL IN THE PROPORTION OF 4-20 PARTS BY WEIGHT OF 1,2,6-HECANETRIOL PER 100 PARTS BY WEIGHT OF TOLUENE SIISOCYANATE, MAINTAINING THE TEMPERATURE OF THE MIXTURE CONSISTING ESSENTIALLY OF 1,2,6-HEXANETRIOL AND TOLUENE DIISOCYANATE WITHIN THE RANGE OF 100-125* C. FOR A SUFFICIENT LENGTH OF TIME TO PRODUCE AN ADDUCT OF 1,2,6-HEXANETRIOL AND TOLUENE DIIOCYANATE IN EXCESS TOLUENE DIIOCYANATE; WITH AN ALKYD POLYESTER RESIN PRODUCED BY REACTION OF A DICARBOXYLIC ACID SELECTED FROM THE GROUP CONSISTING OF PHTHALIC, ISOPHTHALIC, TEREPHTHALIC, SUCCINIC, ADIPIC, MALEIC, FUMARIC, MALIC, CAMPHORIC, DIPHENIC ACIDS AND ANHYDRIDES THEREOF, WITH A POLYHYDROXY COMPOUND SELECTED FROM THE GROUP CONSISTING OF ETHYLENE GLYCOL, DIETHYLENE GLYCOL, HEXAMETHYLENE GLYCOL, PINACOL, GLYCEROL, TRIMETHYLOPROPANE, TRIMETHYLOLETHANE, HEXANETRIOL, ERYTHRITOL, PENTAERYTHRITOL, AND MANNITOL IN THE PROPORTION OF 1.00 MOL DIBASIC ACID, LESS THAN 0.85 MOL DIOL POLYHYDORXY COMPOUND AND 2.00-0.35 MOL TRIOL POLYHYDROXY COMPOUND TOGETHER WITH WATER TO PRODUCE A FOAM AND IN THE PRESENCE OF A TERTIARY AMINE RESINFICATION CATALYST AND AN ORGANIC DISPERSING AGENT.