Patent ID: 7825163

Claim:
A process for making a biodegradable composition consisting of: (a) providing from about 20 to 80% by weight of C 8-22 fatty alcohol; (b) providing from about 20 to 80% by weight of a ring opening product of a C 8-22 1,2-epoxyalkane with ethylene glycol; (c) combining the C 8-22 fatty alcohol provided in (a) and the ring opening product of the C 8-22 1,2-epoxyalkane with ethylene glycol provided in (b) to form a mixture; and (d) reacting said mixture with ethylene oxide in the presence of catalyst and at elevated temperature and pressure, with the proviso that the ethylene oxide is used in an amount of from about 30 to 100 mol ethylene oxide per mol of free OH groups present in said mixture.