Biologically degradable compositions
AssigneeCognis IP Management GmbH
InventorsUwe Held, Carsten Baumann, Sandra Heldt, Horst-Dieter Schares, Andreas Willing
Life of this patent
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Abstract
A process for making a biodegradable composition involving: (a) providing from about 20 to 80% by weight of C8-22 fatty alcohol; (b) providing from about 20 to 80% by weight of a ring opening product of a C8-18 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.
Claims9
A process for making a biodegradable composition consisting of:
- (a) providing from about 20 to 80% by weight of C8-22 fatty alcohol;
- (b) providing from about 20 to 80% by weight of a ring opening product of a C8-22 1,2-epoxyalkane with ethylene glycol;
- (c) combining the C8-22 fatty alcohol provided in (a) and the ring opening product of the C8-22 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.
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 C8-22 fatty alcohol;
- (b) providing from about 20 to 80% by weight of a ring opening product of a C8-22 1,2-epoxyalkane with ethylene glycol;
- (c) combining the C8-22 in (a) and the ring opening product of the C8-22 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.
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 C8-22 fatty alcohol;
- (b) providing from about 20 to 80% by weight of a ring opening product of a C8-22 1,2-epoxyalkane with ethylene glycol;
- (c) combining the C8-22 fatty alcohol provided in (a) and the ring opening product of the C8-22 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.
Dependencies are inferred from the claim text.