Biologically degradable compositions
View Patent ↗A process for making a biodegradable composition involving: (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 8-18 1,2-epoxyalkane with ethylene glycol; (c) combining (a) and (b) to form a reaction mixture; and (d) reacting the reaction mixture with ethylene oxide, with the proviso that the ethylene oxide is used in an amount of from about 5 to 100 mol ethylene oxide per mol of free OH groups present in the reaction mixture.
1. 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.
2. The product consisting of the process of claim 1 .
3. A surfactant composition consisting of:
from about 50 to 90% by weight of the product of the 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 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;
and remainder, to 100% water.
4. The composition of claim 3 wherein the composition is liquid and pourable at 20° C.
5. The composition of claim 3 wherein the composition has a Hoppler viscosity at 20° C. of from about 0.1 to 3 Pas.
6. A process for making an aqueous lattice comprising providing an aqueous emulsion containing a polymer and/or copolymer and a surfactant composition, consisting of:
from about 50 to 90% by weight of the product of the process 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; and
remainder, to 100% water; and
polymerizing the polymer and/or copolymer to form the aqueous lattice.
7. The process of claim 6 wherein said surfactant composition is present in an amount of from about 0.5% to about 10% by weight, based on the weight of said aqueous emulsion.
8. The process of claim 6 wherein said surfactant composition is present in an amount of from about 1% to about 5% by weight, based on the weight of said aqueous emulsion.
9. The process of claim 6 wherein said surfactant composition is present in an amount of from about 1% to about 3% by weight, based on the weight of said aqueous emulsion.