Alkoxylated dendrimers and use thereof as biodegradable...

Details Alkoxylated dendrimers and use thereof as biodegradable... Alkoxylated dendrimers and use thereof as biodegradable...

2004-06-19

2009-08-04

Choi, Ling-Siu (Department: 1796)

Colloid systems and wetting agents; subcombinations thereof; pro

Compositions containing an agent for breaking ; processes of...

Continuous liquid phase colloid system and discontinuous...

C516S182000, C516S183000, C516S184000, C516S185000, C516S186000, C516S187000, C516S188000, C516S189000, C516S190000, C516S191000, C210S708000, C524S437000

Reexamination Certificate

active

07569615

ABSTRACT:
Disclosed is the use of alkoxylated dendrimers for breaking oil/water emulsions. The alkoxylated dendrimers have a molecular weight of from 2400 to 100 000 g/mol and have been alkoxylated with C2-C4-alkylene oxide groups or a mixture of such alkylene oxide groups such that the alkoxylated dendrimer has a degree of alkoxylation of from 1 to 100 alkylene oxide units per free OH group. The alkoxylated dendrimers are added to the oil/water emulsions in amounts of from 0.0001 to 5% by weight, based on the oil content of the emulsion to be demulsified.

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International Prelininary Report on Patentability, PCT/EP2004006651, May 2006.

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