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US 2015/0329990 A1Published application
Woolscouring method and composition
AssigneeCroda International PLC
InventorsMahzad GOODWIN, Peter Michael MURPHY, Simon Paul FLAVIN
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Abstract
The present invention relates to a method of washing animal fibers comprising contacting the animal fibers with a surfactant composition comprising a mixture of alcohol ethoxylate surfactants and optionally at least one propoxylated surfactant.
Claims41
A method of cleaning animal fibers comprising contacting the animal fibers with a surfactant composition comprising a mixture of alcohol ethoxylate surfactants.
A surfactant composition for cleaning animal fibers comprising a blend of alcohol ethoxylates represented by the following formulae:
- R1(OCH2CH2)n1—OH and R2(OCH2CH2)n2—OH
- wherein:
- R1 and R2 are, independently, linear alkyl groups having an average carbon chain length in the range of from C5 to C20;
- n1 is in the range of from 0.5 to 4;
- n2 is in the range of from 3.5 to 10;
- and
- (n2−n1) is in the range of from 2 to 8;
- and at least one first propoxylated surfactant represented by the following formula:
- R3—Y-[(PO)m1/(EO)p1]-H
- wherein:
- R3 is a hydrocarbon group having an average chain length in the range of from C6 to C16;
- PO represents C3H6O, and EO represents C2H4O;
- m1 is in the range of from 0.5 to 6;
- p1 is in the range of from 0 to 9;
- and
- Y is —O—, —COO—, —CONH— or —NHCO—.
13 more elements
Dependencies are inferred from the claim text.