Ethylene Glycol → Adipic Acid

Participants

Reaction Steps

The following were mixed with 1,6-HG (39.3 parts) to prepare homogeneous glycol components: a polyester diol (243.5 parts) having an Mn of 1000 yielded from 1, 4-BD, and adipic acid; a polyester diol (243.5 parts) having an Mn of 2600 yielded from 1,4-BD, ethylene glycol, and adipic acid; and a polyester diol (324.7 parts) having an Mn of 1500 yielded from 1,6-HG and isophthalic acid. The glycol components were mixed with HDI, and the mixture was supplied at a flow rate ratio of 100:17.5 from a hopper of a biaxial extruder, the temperature of which was adjusted to about 190° C. The mixture was kneaded, and simultaneously resinified to yield a polyurethane resin.

Provenance & Evidence